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Natural History of Early, Localized Prostate
Cancer
Jan-Erik Johansson, MD, PhD
Ove Andrén, MD
Swen-Olof Andersson, MD, PhD
Paul W. Dickman PhD
Lars Holmberg, MD, PhD
Anders Magnuson, BSc
Hans-Olov Adami, MD, PhD
JAMA,
June 9, 2004 – Vol 291, No. 22
Without understanding the natural history of prostate
cancer diagnosed at an early, localized stage, patient counseling
and clinical management are difficult. The challenge is to maximize
the possibilities for survival without extensive over- treatment.
Even without initial treatment, only a small proportion of all patients
with cancer diagnosed at an early clinical stage die from prostate
cancer within 10 to 15 years following diagnosis. However, to our
knowledge, no study has hitherto adequately analyzed whether patients
who escaped metastasis and death during those 10 to 15 years without
treatment continue to have an indolent, nonfatal disease course or
whether in the long term, tumor progression takes a more aggressive
course. Recently, a randomized trial demonstrated that radical prostatectomy
may further reduce the low-death rate in early prostate cancer by
approximately 50%. Because it takes several years after operation
for this benefit to emerge, age at diagnosis, comorbidity that influences
life expectancy and long-term natural history will determine the
potential ad vantage with radical primary treatment.
This study focuses on information that aids clinical decision making, namely
the association between prognostic factors available at diagnosis and the
long-term natural history in patients without initial treatment. Such knowledge
can help us understand whether there are men with prostate cancer and a long
life expectancy in whom early radical treatment might be justified despite
the fact that they have favorable prognostic signs seen from a perspective
of 5 to 10 years of follow-up. We studied these issues prospectively in the
largest population-based cohort ever impaneled to analyze survival following
watchful waiting of patients with early prostate cancer. Complete follow-up
of this cohort has now been achieved during an average of 21 years, and only
9% of the patients are still alive.
METHODS
Patients
The patients comprised a population- based cohort of patients with early,
initially untreated prostate cancer as previously described in detail. The
TNM system and the World Health Organization classification of malignant
diseases were used. At the time of diagnosis, all patients underwent a clinical
examination, excretory urography, chest radiography, bone scan, and skeletal
radiography (if needed) and had routine blood samples taken. The nodal status
was not known for any of the patients. Prostate-specific antigen (PSA) testing
was not available, and no screening activities for prostate cancer took place during
the period when this cohort was recruited.
From March 1977 through February 1984, a total of 654 new cases of prostate
cancer were diagnosed among residents in the regionally well-defined catchment
area in central Sweden. Patients were given no initial treatment if the tumor
growth was localized to the prostate gland as judged by digital rectal examination
(T0-T2) and no distant metastases were present (306 patients). This was in
accordance with the standard management at the time in Sweden. The following
restrictions were applied, however, among those with palpable tumors (T1-T2).
From March 1977 through February 1979, only patients with a highly differentiated
tumor (grade 1) were included in the untreated group. From March 1979 through
the end of the recruitment period, patients younger than 75 years at diagnosis
and with moderately or poorly differentiated tumors (grades 2-3) were randomly
allocated to receive local radiation (10 patients) or no treatment, and only
the latter group was included in this cohort study. Patients 75 years or
older were not treated and included in the study.
Among the 227 eligible patients, 4 (2%) were given initial treatment and
had to be excluded from the analyses. The distribution of the study group
of 223 patients by age, stage, and grade at the time of diagnosis is shown
in TABLE 1. The mean age at diagnosis was 72 years (range, 41-91 years).
Altogether 106 (48%) cases were detected by histopathologic examinations
of specimens obtained at operations for suspected benign prostatic hyperplasia.
The remaining 117 patients had a palpable clinical disease localized to the
prostate gland. A review by an experienced histopathologist confirmed the
initial diagnosis in all cohort members. Approximately two thirds of patients
had highly differentiated tumors, whereas only 9 (4%) had a poorly differentiated
tumor.
Procedures
All 223 patients were followed up from diagnosis until death or the end of
the observation period (September 1, 2001). No patient was lost to follow-
up. Clinical examination, laboratory tests, and bone scans were performed
every 6 months during the first 2 years after diagnosis and subsequently
once a year during the first 10 years of observation and thereafter at least
once every second year. Those in whom the cancer progressed to symptomatic
disease were
treated with exogenous estrogens or orchidectomy.
Local progression was defined as tumor growth through the prostate capsule
(T3) as judged by digital rectal examination. Development of distant metastasis
(Ml) was classified as generalization. If both local progression and metastatic
disease were present, the patient was classified as having generalized disease.
During the first 6 years of follow- up, all patients who were still alive
and consented underwent a new fine- needle biopsy every other year. We obtained
such biopsy specimens from 178 (80%) of the 223 patients. Although this procedure
has lower than 100% sensitivity, notably for impalpable tumors, remaining
cancer growth was confirmed cytologically in most patients:
45 (73%) among those with TOl disease, 24 (92%) among those with TOd disease,
and 90 (100%) among those with T1-2 disease. Altogether 31(17%) of 178 patients
showed evidence of de differentiation. Twenty-one patients (18%) changed
from high to moderate differentiation, 7 (13%) from moderate to low differentiation,
and 3 (3%) from high to low differentiation.
The medical records of all deceased patients were reviewed. In most in stances,
the cause of death determined in real time was obvious on clinical grounds
alone. An autopsy was per formed if the cause of death was not clear. Prostate
cancer was recorded as the underlying cause of death, a contributory cause
of death, or unrelated to death as described in detail in a previous re port.
If treatment of the prostate cancer was related to death (chiefly due to
cardiovascular complications following estrogen administration), prostate
cancer was recorded as a contributory cause. As a validation, we compared
our own classification of causes of death with those recorded in the Swedish
Death Register. This information was obtained through record linkage between
our study cohort and the Swedish Death Register based on the individually
unique national registration number as signed to all Swedish residents. There
was agreement in 90% of the patients and no evidence of systematic overascertainment
or underascertainment of prostate cancer as cause of death in our data. Although
based on small numbers, there was no evidence that the disagreement
was larger in older than in younger patients.
Statistical Methods
We estimated various measures of patient survival using the actuarial (life-
table) method. Cause-specific survival was estimated by considering only
deaths due to prostate cancer as events of interest (deaths due to other
causes were considered censored), observed survival by considering deaths
due to any cause as events, and progression- free survival by considering
progression as the event of interest. We also estimated relative survival,
defined as the ratio of observed survival to the expected survival of a comparable
group from the general population assumed to be free of prostate cancer.
We estimated expected survival using the Hakulinen method based on Swedish
population life tables stratified by age, sex, and calendar time. We also
calculated prostate cancer—specific mortality rates (deaths per 1000
person- years at risk) and associated 95% confidence intervals (CIs). We
estimated Poisson regression models to study the association between prostate
cancer mortality and time since diagnosis while adjusting for age at diagnosis,
stage, and grade. Relative survival was estimated using software developed
at the Finnish Cancer Registry.’ All other analyses were per formed
using Stata statistical software (Stata Corporation, College Station, Tex).
All reported P values are 2-sided. Statistical significance was P<.05.
RESULTS
Overall Findings
During a mean observation period of 21 years, 89 patients (40%) experienced
progression of disease, and of these 39 (17% of the entire cohort) developed
generalized disease. A total of 203 patients (91% of the entire cohort) died
during follow-up, with prostate cancer considered the cause of death in 35
(16% of the entire cohort; Table 1). Among patients who were 70 years or
younger at diagnosis, 22 (22%) died from prostate cancer during follow- up,
whereas this proportion de creased markedly at higher ages. The proportion
of patients dying from prostate cancer was strikingly similar among those
with nonpalpable (TO) tumors detected at transurethral resection (18 patients
[ and those with a palpable tumor (17 patients [ In contrast, poor differentiation
was a strong predictor of prostate cancer— specific death.
Progression and Survival Rates
Although based on small numbers, the progression and mortality rates remained
fairly constant during the first three 5-year periods following diagnosis.
Averaged over the first 15 years, the rate of progression to metastatic disease
was 18 per 1000 per son-years (95% CI, 13-25) and the prostate cancer mortality
rate was 15 per 1000 person-years (95% CI, 10-21). In contrast, an approximately
3-fold higher rate was found both for progression and death during follow-up
beyond 15 years (Table 2). This increase was almost statistically significant
for progression (P=
.06) and statistically significant for death (P=.0l).
TABLE 3 shows various measures of survival after 15 and 20 years of follow-
up. During this 5-year period, the progression-free survival among all patients
decreased from 45.0% to 36.0%. The low and rapidly decreasing ob served survival
reflects chiefly the impact of causes of death other than prostate cancer.
Most notably, however, we found a substantial decline by approximately 25
percentage points in both the relative and the cause-specific survival rate
during the last 5 years of follow-up. FIGURE 1 further illustrates how a
gradual decline in relative and cause- specific survival seemingly occurred
more rapidly after approximately 16 years of follow-up. This change seemed
to affect tumors regardless of initial stage and also to affect tumors that
were both initially highly and moderately differentiated. The gloomy outlook
among patients with poorly differentiated tumors became manifested already
within the first 5 years of follow-up.
Prostate cancer mortality was slightly higher among patients whose cancer
was diagnosed at 70 years or younger than among those whose cancer was diagnosed
at older ages (Table 2). Strikingly similar mortality rates were found among
patients who had localized non- palpable cancer compared with those who had
a cancer in stage Ti or T2. In contrast, the mortality rate was 70% higher
among men with a nonpalpable diffuse cancer. With regard to differentiation,
the mortality rate in creased drastically from highly to poorly differentiated
tumors (Table 2).
Multivariable Analyses
Multivariable Poisson regression models were fitted to quantify the independent
effects of follow-up time, age at diagnosis, grade, and stage (TABLE 4).
Our analyses showed a significant (approximately 6-fold) higher mortality
rate after 15 years of follow-up compared with the first 5 years. The strong
prognostic impact of grade, notably of poorly differentiated tumors, was
also con firmed. In contrast, neither age at diagnosis nor stage of disease
was significantly associated with risk of death due to prostate cancer. Although
we had limited power to test interaction, the risk of death due to prostate
cancer after 15 or more years of follow-up com pared with 0 to 14 years was
similar among patients with cancer diagnosed before (relative risk, 4.1)
and after (relative risk, 3.1) 70 years of age.
A separate model was fitted in which the event of interest was local progression.
In this analysis, we disregarded if and when regional and/or distant progression
or metastases were ascertained. Except for age at diagnosis, the pattern
for local progression was strikingly different from that of death due to
prostate cancer (Table 4). Hence, the risk of local progression did not in
crease over follow-up time, and the association with grade was weak. More
over, compared with T0l tumors, growth beyond the prostate capsule was 2
or 3 times more likely in patients with T0d and T1-2
tumors, respectively.
COMMENT
Although our cohort of patients with early stage, initially untreated prostate
cancer has been previously followed up in great detail during an average
of 15 years, the additional 6 years included in this analysis revealed an
un expected change in prognostic out look; the cause-specific survival rate
de creased by almost 25 percentage points, reflecting an approximate 3-fold
in crease in prostate cancer mortality rate compared with the first 15 years
of follow-up. This change occurred consistently across stage and grade except
for poorly differentiated cancers in which excess mortality becomes manifest
al ready during early follow-up. We were unable to conceive of any bias that
could have spuriously generated these recent findings. Indeed, the internal
validity of our population-based study should be high because we achieved
complete follow-up and used standardized procedures for clinical examination,
ascertainment of disease progression, and classification of death. Moreover,
the slight difference between cause-specific and relative survival estimates
were largely consistent overtime. This argues against any shifting criteria
for classification of cause of death, since the relative survival rate reflects
excess mortality (compared with mortality in the general population) and
is thus unaffected by any subjective judgment. Prostate cancer mortality
rates were mirrored closely by rates of disease progression to metastatic
disease. Hence, chance is the only realistic alternative to a real deterioration
in prognosis after long-term follow-up, and the level of statistical significance
argues against this explanation.
If our data reflect a real phenomenon, they would imply that the probability
of progression from localized and indolent to metastatic mortal disease in
creases markedly after long-term follow up. This progression is not restricted
to cancers diagnosed due to clinical symptoms but includes also tumors detected
incidentally at transurethral re section due to presumed benign prostatic
hyperplasia. Our survival data, supported by biopsy specimens taken during
follow-up, would further imply that these latter lesions are either incompletely
removed or multifocal with malignant clones left at a trans urethral resection.
Contrary to emerging views, our data also suggest that metastases may arise
as a consequence of late mutations rather than being determined already by
the early mechanisms of malignant transformation. According to a rival interpretation,
the phenomenon we observed reflects transformation of new, more aggressive
cancer clones rather than progression of those initially detected. Empirical
testing of these complementary, but not mutually exclusive,
theories seems difficult.
It may be difficult to validate our survival data in any new cohort study
of watchful waiting since aggressive treatment of localized prostate cancer
has become more routine now than it was 25 years ago when we started to assemble
our cohort.’ Indeed, it has been estimated that approximately 60000
men undergo radical prostatectomy yearly in the United States alone, and
the number performed annually in England increased nearly 20-fold between
1991 and 1999.’ This development toward treatment with a curative intent
may further accelerate following recent documentation that radical prostatectomy
reduces prostate cancer mortality by approximately 50%. Hence, support for
our findings has to be found chiefly in existing studies of watchful waiting.
Other such cohorts are, however, few and small, none of them are population
based and prospective, and virtually no follow-up data are available be yond
15 years after diagnosis. Within these constraints, experience during the
first 10 years after diagnosis is strikingly similar in existing cohorts
of patients with early stage prostate cancer left without initial treatment,
with a favorable course of the disease for men with highly or moderately
differentiated tumors.
From a public health perspective, implications of late progression from early
stage to mortal disease may not be significant because without PSA testing,
average age at diagnosis of prostate cancer is so high that competing causes
of death predominate (Table 1). Al though it is well established that an
excess death rate continues long term in population-based cohorts of prostate
cancer patients, these data do not enable distinction of deaths generated
by patients initially diagnosed as having localized disease. In our entire
cohort, 25 (11%) of 223 patients died from prostate cancer within 15 years
of diagnosis and an additional 10 during subsequent follow-up until a time
when only 9% of all patients in the cohort were still alive and therefore
at risk of progression. Assuming that radical prostatectomy prevents approximately
50% of prostate cancer deaths, approximately 18 patients (8%) in our entire
cohort (that is, 0.5 X 35) would have experienced a survival benefit, whereas
the remaining 205 would not. However, among elderly men, reducing the risk
of death from prostate cancer
by a certain amount may have limited impact on their overall survival.
Our data may be important for counseling and clinical management of individual
patients. Postponement of death is not the only treatment objective because
local progression may create substantial suffering. Indeed, many of our patients
experienced symptomatic local growth without generalized disease (Table 1),
requiring treatment with estrogens or orchidectomy. Obviously, radical prostatectomy
is a major procedure with substantial ad verse effects, chiefly impotence
and incontinence. Because these complications are surprisingly well tolerated,
many patients may prefer a radical prostatectomy even if prolonged survival
is an uncertain consequence. Our data may be particularly relevant to otherwise
healthy men diagnosed as having prostate cancer at an early age. If such
patients are in their 60s or younger, disease progression that occurs after
15 or more years may be a real concern, arguing for early local treatment
with a curative intent. In patients with a PSA-detected cancer, such counseling
is, however, complicated by the fact that a lead time that cannot be individually
determined has to be added to the approximately 15 years that may precede
more rapid tumor progression.
One important and complicated question is how the findings of this study
relate to the current era when many patients are detected by means of PSA
testing. The results are directly relevant for patients with clinical disease
diagnosed before the PSA era and also to preclinical disease detected at
trails- urethral resection for presumed benign prostatic hyperplasia. Indeed,
as shown in Table 4, these 2 categories of patients experienced similar risk
of dying from prostate cancer. The natural history we have described reflects
also what would happen among PSA-detected cancer if the lead time could be
accommodated and the patients were left without early therapeutic intervention.
How ever, a substantial proportion of PSA diagnosed cancers represents overdetection
of subclinical disease. These cancers would never have surfaced clinically
during the patient’s lifetime, either because they are indolent or
because death occurs from competing causes before clinical manifestation
of the malignancy. By definition, these cancers do not generate any mortality.
In conclusion, our data indicate that the probability of progression to a
more aggressive and lethal phenotype may in crease after long-term follow-up
of prostate cancers that are diagnosed at an early stage and initially left
without treatment. These findings argue for early radical treatment of patients
with long life expectancy. Not only would such surgical intervention potentially
prevent deaths, it would also convey prevention from disability caused by
lo cal tumor growth.
Author Affiliations: Departments of urology and
Clinical Medicine (Drs Johansson, Andrén, and Andersson)
and Statistical unit, Center for Clinical Research (Mr Magnuson),
Orebro university Hospital, and Center for Assessment of Medical
Technology (Drs Johansson and Andersson), Orebro, Sweden; Department
of Medical Epidemiology and Biostalistics, Karolinska Institute,
Stock holm, Sweden (Drs Dickman and Adami); Regional On cologic
Center, University Hospital, Uppsala, Sweden (Dr Holmberg); and
Department of Epidemiology and the Harvard Center for Cancer Prevention,
Harvard School of Public Health, Boston, Mass (Dr Adami).
Corresponding Author: Jan-Erik Johansson, MD,
PhD, Department of Urology, Orebro University Hospital, SE-701
85 Orebro, Sweden (lan-erik.johansson@orebroll.se).
Waiting Time in Prostate Cancer
Alfred I. Neugut, MD, PhD
Victor R. Grann, MD, MPH
JAMA,
June 9, 2004 – Vol 291, No. 22
The study from Johansson and Colleagues published in this issue of THE JOURNAL
illustrates why oncologists often substitute the jargon of survival rates
to sidestep using the magic word cure, which is really what’s on every
patient’s mind. In this well- conducted investigation, the researchers
complete more than 2 decades of follow-up for a cohort of more than 200 Swedish
men with early-stage prostate cancer from before the prostate-specific antigen
(PSA) era who were treated with watchful waiting. Earlier reports by Johansson
et al documented the relatively high rates of recurrence and mortality for
those with high-grade tumors and the relatively lower rates among those with
low-grade tumors, extending up to about 15 yearn of follow-up! In the current
article, the authors extend their follow-up to more than 20 years and find
a surprising acceleration in the recurrence and mortality rates of the patients
with low-grade tumors. The result is that more aggressive disease indeed
occurs after 15 years of follow-up for these patients.
One lesson, of course, is that cure is only an abstract concept in certain
types of cancer. Clearly, prostate cancer joins breast cancer in this arena.
It is well known that 5-year survival in breast cancer is not adequate and
that even after 10 and 20 years, women continue to experience recurrence,
with no plateau in the survival curves. Prostate cancer, similar to breast
cancer in many other respects, shares this common feature.
What is unusual, however, is not the continued progression to recurrence
and mortality, but the acceleration. Why did this occur? One possibility
is that new technology was introduced, including the use of PSA testing and
computed tomography or magnetic resonance imaging, and so more prostate cancer
recurrence was recognized than in prior years, a variant on the Will Rogers
phenomenon” Because PSA testing became available with these radiologic
techniques, disease that would have been unrecognized in the first 10 to
15 years (up to 1985 or 1990) of cohort follow-up would have remained unrecognized
while becoming recognized in the finals or more yea of the study. Thus, there
is not truly an acceleration in the occurrence of recurrence, simply an increased
rate of its detection and diagnosis. Another possibility is that the recurrences
represent a different clone of prostate cancer within the prostate, and not
simply recurrence of the original prostate cancer. Since this initially untreated
cohort of patients, followed up for 20 years, was treated for symptomatic
progression of cancer with either estrogen therapy or orchiectomy, dedifferentiation
of hormone-resistant cancers may have occurred. Furthermore, the use of estrogen
therapy may have led to cardiovascular disease or thrombophlebitis, potentially
fatal adverse effects of therapy that would
have been attributed to prostate cancer.
Whatever the reason for the acceleration, this is the first study to have
such long follow-up of a cohort with prostate cancer. As such, it has some
relevance, as the authors state, for treatment. Although the 5-year survival
rate is a valid metric for comparing the results of randomized clinical trials,
the use of this outcome for a cohort of untreated patients across time or
place may be misleading. The randomized trial of radical prostatectomy, also
conducted in Sweden, had a 50% reduction in prostate cancer-specific mortality
for the radical prostatectomy group compared with the watchful waiting group,
with no significant improvement in overall morta1ity. However, the short
follow-up time of this trial (ie, only 6.2 years) is not sufficient for the
assessment of prostate cancer outcomes. Longer follow-up beyond 5-year survival
is needed in this trial and in other studies to fully assess the real benefits
of radical prostatectomy.
Also, the patient population in the current study by Johansson et al is,
on average, 70 Years or older. Younger patients will need more aggressive
treatment, particularly given the poor long-term outcomes and the increasing
survival that they will have from other causes. Furthermore, because of their
increased age and longevity, there may also be a survival bias because they
have survived competing causes of mortality. As a consequence, all age-dependent
causes of death will increase, especially for a disease such as prostate
cancer.
Most important, this cohort was assembled prior to the advent of widespread
PSA testing. What relevance and what implications do the findings have in
the current era of PSA screening? Two ongoing studies of watchful waiting
for patients with localized low-risk prostate cancer are measuring PSA levels
and using PSA doubling times as an indication for therapeutic intervention.
Screening, of course, adds lead time to the follow-up and thus the extent
of follow-up before progression and mortality potentially will be even longer
than this
study shows.
These studies remain confusing in terms of their overall implications for
prostate cancer screening. After all, one of the key questions in prostate
cancer remains: Why isn’t it obvious that prostate cancer screening
with PSA works? Many of the ingredients for successful screening have always
been present in prostate cancer, such as an excellent potential screening
test, good stage-specific survival, and down staging with use of the screening
test. The incidence of prostate cancer increased dramatically in the United
States starting in 1988, with a peak around 1992, but no clear-cut subsequent
decline in prostate cancer mortality has occurred. The study by Johansson
et al adds one more datum: the fact that long follow-up may be necessary
to ob serve the full benefits of earlier diagnosis and treatment.
A major question has been whether the use of radical prostatectomy improves
survival, a question addressed by the recent radical prostatectomy randomized
trial from Sweden and by the Prostate Cancer Intervention Versus Observation
Trial (PIVOT), now in progress. But perhaps one of the key problems is the
one raised in this study, ie, the length of follow-up necessary to demonstrate
a survival benefit. It is difficult to think in terms of conducting a randomized
trial for screening with a horizon of 15 to 20 years, but perhaps that is
exactly what will be necessary to really observe the impact of PSA screening
on prostate cancer.
Author Affiliations: Department of Medicine
and Hated Irving Con1 Cancer Center, College of Physicians
and Surgeons, and the Department of Epidemiology. Mailman
School of Public Health, Columbia University. New York, NY.
Corresponding Author: Alfred I. Neugut, MD, PhD, Division of Medical Oncology
College of Physicians and Surgeons. Columbia University, 630W 168th St, MSPH
725, New York. NY 10032 (ain1@columbia.edu).
Brachytherapy Guided by Fusion Images:
Less Rectal Toxicity
Published in the July 2004 Volume 13 Number
7 issue of Oncology
News International
SAN FRANCISCO—Rectal toxicity among prostate
cancer patients who are treated with brachytherapy can be diminished
by using information obtained from a fusion of two images to guide
placement of the radioactive seeds within the tumor, Rodney Ellis
MD, assistant professor if urology, Case Western Reserve School of
Medicine, Cleveland, reported at the 99th Annual Meeting of the American
Urological Association (abstract 1071).
Functional and anatomical image fusion has been rendered practical in recent
years by the advent of more powerful computers. By superimposing a functional
image that provides clues to cells’ disease status upon an anatomic
image showing an individual patient’s prostate and surrounding area,
it is possible to guide brachytherapy more precisely, Dr. Ellis said.
The functional, or cancer-detecting, image is obtained via scintography with
ProstaScint (capromab pendetide), a monoclonal antibody to prostate-specific
membrane antigen (PSMA) that is labeled with the radioisotope indium-III
and then administered intravenously. This image is superimposed on a CT scan,
which, by itself, provides a high-resolution image of pelvic and prostate
anatomy but little or no information about the location of cancerous tissue.
Superimposition of the two images pinpoints tumor locations within the individual
patient, potentially allowing more carefully targeted needle placement while
minimizing unnecessary radiation exposure to the rectum, urethra, and bladder.
ProstaScint is FDA approved for imaging of prostate cancer patients at high
risk of pelvic lymph node metastases or for whom there is a high clinical
suspicion of occult metastatic disease. PSMA is expressed in many primary
and metastatic prostate cancer lesions, and its expression in prostate cancer
cells is generally unchanged or increased in patients treated with hormonal
therapy.
Dr. Ellis and his colleagues first started treating patients with fusion-image-guided
brachytherapy in February 1997. In 1998, they published results indicating
that Prosta Scint uptake closely tracked with the presence of tumor tissue,
as determined by biopsy. While subsequent reports have discussed the efficacy
of this treatment approach, Dr.
Ellis said, the current study is the first to provide detailed toxicity results.
In the current study, 65 low-risk, 43 intermediate-risk, and 24 high-risk
prostate cancer patients between 41.5 and 81 years old (median age, 65) were
treated with either brachytherapy alone (78 patients) or external-beam radiation
therapy (EBRT) plus a brachytherapy boost (54 patients). Radiation Therapy
Oncology Group (RTOG) bowel function questionnaires were administered to
all patients before treatment and every 3 to 6 months thereafter.
Acute grade 1 rectal toxicities, namely increased frequency or change in
the quality of bowel habits, occurred in 41.9% of patients, while 3.1% experienced
acute grade 2 toxicities (diarrhea requiring medication, or discomfort requiring
analgesics).
Rates of chronic grade 1 toxicities (mild diarrhea, cramping, or slight rectal
bleeding) at 4, 7, 12 18, 21, and 30 months postimplant were 12.1% 11.3%,
14.0% 16.0%, 9.8%, and 83%, respectively. At equivalent observation intervals,
rates of chronic grade 2 toxicities (moderate diarrhea or intermittent rectal
bleeding) were 0.9%, 0.0%, 2.5%, 1.3%, 7.8%, and 4.2%.
There were no acute or chronic rectal toxicities above grade 2, and no patient
required colonoscopy, fulguration, or blood transfusion.
While Dr. Ellis cautioned that the study contained no control arm, he noted
that these preliminary toxicity results compare favorably with those of previously
published studies. He and his colleagues are continuing to monitor patients
for late toxicities.
Earlier reports by Dr. Ellis and his colleagues have described 4-year cure
rates of 100% for 80 low- and intermediate risk patients treated with brachytherapy
only. Five-year cure rates for 66 intermediate-risk patients treated with
brachytherapy and EBRT ranged from 68.6% for those with at least three risk
factors to 100% for those with only one risk factor. Dr. Ellis said these
results are markedly higher than those of most other published series.
In about a year or so, he intends to publish results on an expanded patient
population of 270 patients treated with fusion-image-guided brachytherapy.
Cancer deaths down in U.S., report finds
First-ever drop in lung cancer among
women
MSNBC staff and news service reports
Updated: 12:24 p.m. ET June 3, 2004
WASHINGTON - More Americans are surviving
cancer for five years or more and deaths from cancer overall are
steadily declining, according to the latest annual report on cancer
published Thursday in the journal Cancer.
For the first time, fewer women are being diagnosed with lung cancer, the
joint report from the American Cancer Society, Centers for Disease Control
and Prevention, the National Cancer Institute, and the North American Association
of Central Cancer Registries finds.
Not everyone is reaping the gains: Minorities still
are more likely than whites to die from cancer, says the report.
Cancer remains the second leading cause of death
in the United States behind heart disease. This year 1.368 million
Americans will learn they have cancer and 563,700 will die of it.
The “Annual Report to the Nation on the Status
of Cancer, 1975-2001” finds that cancer rates dropped 0.5 percent
per year from 1991 to 2001, while death rates from all cancers combined
dropped 1.1 percent per year from 1993 to 2001.
This is due to better prevention, screening that
catches cancer early enough to treat it, and better therapies.
Drop in lung cancer among
women
Most striking in this latest tally is what’s happening with the No.
1 cancer killer: Rates of female lung cancer diagnoses have declined about
2 percent a year since 1998, years after men began a similar improvement.
Smoking became common among men long before women,
and the resulting lung cancer consequently struck men sooner.
Lung cancer remains the nation’s top-killing
malignancy for both sexes, and the second most common cancer. But
it slowly declined among men starting in the early 1990s as older
smokers died and fewer young men took up the habit — a pattern
doctors expect to eventually see in women.
The report says female death rates from lung cancer
have leveled off, remaining virtually unchanged since 1995, the report
says.
“The first-ever drop in lung cancer incidence
rates in women is remarkable proof that we are making a difference
in the number one cancer killer, and is powerful evidence that our
successful efforts must continue,” said John Seffrin, chief
executive officer of the American Cancer Society.
Nonetheless about 174,000 Americans will be diagnosed
with lung cancer this year and 160,000 will die of it.
The report builds on one issued by the American
Cancer Society alone in January, which also showed overall cancer
diagnosis and death rates dropping across the United States.
Survival milestone
The report’s other new finding: More people are living at least five
years after a diagnosis of most types of cancer.
Five-year survival is a major milestone for cancer
patients, and the scientists found significant gains over the past
two decades in how often that milestone was met.
The joint report compares five-year survival rates
of cancer patients diagnosed between 1975 and 1979 to those diagnosed
between 1995 and 2000.
For men, survival rates improved the most — more
than 10 percent — for cancers of the prostate, colon and kidney,
and for melanoma and leukemia.
For women, the biggest survival improvements came
in colon, kidney and breast cancers.
What does that mean? Today, 99.3 percent of men
diagnosed with prostate cancer will live five years, up from 70 percent
in the 1970s. Five-year survival for breast cancer is 88 percent,
up from 75 percent in the 1970s.
But that survival is strongly connected to how
early cancer is caught, stressed co-author Brenda Edwards of the
NCI’s cancer-control division.
The report found that patients with the most deadly
forms such as lung, pancreatic or liver cancers were only a little
more likely to survive.
The racial gap
When looking at all cancers combined, black men are 26 percent more likely
to die of a malignancy than white men, and Hispanic men are 16 percent
more likely than non-Hispanic whites, said the Cancer Society’s Jemal.
Black women are 52 percent more likely to die of
cancer than white women, and Hispanic women 20 percent more likely,
he said.
Much of the disparity reflects minorities’ poorer
access to cancer prevention and early detection services, Jemal said.
But notable differences remain even when scientists
examine people diagnosed at the same stage of cancer, said NCI’s
Edwards.
Black women were more likely to die of breast cancer,
even though that disease is more common among whites.
Access to the best treatment options probably
plays a role, as may additional illnesses patients have that complicate
cancer treatment, Edwards said. “It’s not one simple
story as to what is our national cancer burden,” she cautioned.
Added Jemal: “We know much about cancer.
We need to apply everything about cancer control equally to all populations.”
And almost every racial and ethnic minority was
more likely than whites to die of cancer.
The Associated Press and Reuters contributed to
this report.
Click
here to view this article and others at the MSNBC web site.
Cancer Survivors Parks Now in 20 Cities
By Jane Erikson
Published in volume XXVI No. 4 / February 25, 2004 of Oncology
Times, pp 28,30
Twenty-six years ago, Richard Bloch was diagnosed with lung cancer and given
three months to live. Ever since then, Mr. Bloch—the “R” of
the H&R Block tax- preparation firm—has been spreading his message
that “cancer does not mean death.”
To draw attention to his message, Mr. Bloch and his wife, Annette, started
the R.A. Bloch Cancer Foundation, initially holding “Cancer Survivors
Day” rallies to draw public attention to cancer patients as survivors.
The rallies have been held each June since 1986, now in more than 700 cities
throughout the United States, according to the foundation.
The Foundation (www.blochcancer.org)
also operates a Cancer Hotline 800-433-0464 with 550 volunteers answering
questions. More recently, the Blochs have been building cancer survivors
parks in major cities around the country, including Chicago, Cleveland, Houston,
Indianapolis, Kansas City, New Orleans, Omaha, Phoenix, and— most recently—Tucson.
Tucson’s Cancer Survivors Plaza is the 20th park the foundation has
built. The goal is to build 50 parks through out the United States and Canada,
in cities with populations of at least one million.
Each of the parks is built along streets where people can drive by every
day and see a sign that says “Cancer Survivors.”
“People see the signs and they get the idea that cancer does not mean death,” Mr.
Bloch said. “And then when their cancer is diagnosed, they will remember
the park, and think of those words and feel hope.”
“I don’t think there is such a thing as an unbeatable cancer,” he
said in an interview. “Attitude had a lot to do with my beating cancer.
I was told I wasn’t going to live more than three months. But I was lucky
enough to find the right doctors. I had tremendous support from my family, which
is very important. I had a strong desire to live. I have a strong faith in God.
A lot of people said prayers for me. You put it all together, and I lived.”
The Bloch Foundation covers the $1 million cost of building each park, and
donates $100,000 for maintenance when the park is completed.
3 Basic Elements
Each of the 20 parks includes the same three basic elements.
• The first is sculpture designed by local and regiona1 artists that portray
the theme “Cancer...There is hope.”
• Second is a “Positive Mental Attitude Walk,” built around
a series of plaques engraved with inspirational messages such as “There
is no cancer from which someone has not been cured” and “Cancer is
the most curable of all chronic diseases.”
• The third element is a “Road to Recovery Walk,” which includes
more plaques describing basic strategies for beating cancer.
Among the messages: “Eat a well-balanced diet to maintain an effective
immune system” and “Find a qualified physician who believes you
can be successfully treated .Do everything your physician suggests, and do
everything you believe might help that your physician says will not hurt.
You are the boss. This is your life.”
Complement Local Environments
Plans for each park are reviewed by the Blochs. Each park is designed to
complement local environments.
Kansas City’s park features a massive arch of triumph. Omaha’s
has 14 stainless steel columns designed to create a column of light. Houston’s
park features carved stone work covered in wrought iron with a dome that
holds 2,000 lights.
The park in Columbus features a large rotunda that looks out over the river
that winds through the city. Chicago’s park features two highly visible
granite columns on Lake Shore Drive.
Tucson’s 1.2-acre Cancer Survivors Plaza stands on the edge of the
city’s central Reid Park. It features native plants, bright colors,
a tiered fountain, and other painted tiles, which are all reflective of Mexican
folk art. A steel ramada, laser-cut with intricate folk-art patterns, creates
a movement of light and shadow that changes throughout the day and time of
year.
Seven nearly life-sized bronze statues depict individuals—an elderly
couple a young family, a woman running as if toward a finish line—making
their way through an obstacle course that symbolizes cancer treatment.
Twenty-two plaques offer hope and information, and benches through out the
plaza offer visitors the opportunity to relax and reflect.
Breast cancer survivor Beth Walk- up, wife of Tucson Mayor Bob Walkup, called
the plaza “a celebration” for any one who has gone through or
may be going through cancer treatment. “You can celebrate our lives
every day here,” Mrs. Walkup said at the park’s dedication in
early December.
Laurie Young, Director of Development and Communications for the Arizona
Cancer Center, said Tucson’s new Cancer Survivors Plaza will play an
important role in raising local awareness about cancer.
“It’s the kind of place people can go to find solace if they have
lost some one to cancer or if they have cancer themselves, and that’s great,” Ms.
Young said. “And if it reminds them to quit smoking and otherwise do what
they can to protect themselves from cancer, that’s important too.”
Prostate Cancer - Radiation After Surgery
Helps Keep Prostate Cancer At Bay
By M.S.W., ZoeMed
Inc. Copyright 2000, All Rights
Reserved
Radiation therapy after surgery for men with prostate cancer lessens the
chance of the cancer coming back, regardless of whether the radiation was
administered immediately after surgery or after the cancer recurred, according
to a new study in the June 2004 issue of the International Journal of Radiation
Oncology*Biology*Physics, the official journal of ASTRO, the American Society
for Therapeutic Radiology and Oncology.
Many studies recently have shown that radiation after surgery reduces the
chances that the prostate cancer will recur. For prostate cancer, there are
two main types of postoperative radiation therapy - adjuvant and salvage.
Adjuvant is administered after the primary treatment (in this case, surgery)
has been completed and it appears the cancer cells have been killed. Salvage
is administered if prostate cancer has started to come back and the physician
is trying to save the patient by treating the disease with radiation therapy.
In this study, the researchers wanted to see which type of postoperative
radiation therapy was best for men with prostate cancer. Between 1989 and
1997, 69 patients were referred for adjuvant radiation therapy and 88 patients
with evidence of a recurrence were treated with salvage radiation therapy.
The men in the salvage group received radiation, on average, 40 months after
surgery while the patients in the adjuvant group were treated with radiation
an average of three months post surgery. According to the study, salvage
radiation therapy was significantly less effective when the patient’s
PSA level rose over 1.
“The PSA level was the key factor in this study,” said Michael Hagan,
M.D., Ph.D., the lead author of the study and a member of the Department of Radiation
Oncology at the Medical College of Virginia Hospitals in Richmond.
“Today, practitioners follow prostatectomy patients very closely. As a
result, salvage radiation therapy is usually initiated quite early. The results
from both centers in the study were excellent when radiation treatment was initiated
while the serum PSA level was less than 1 ng/ml.”
Dr. Hagan added, “This study shows that the policy for salvage radiation
therapy is likely to be as effective as adjuvant radiation therapy only when
the institution or practitioner monitors the patient’s PSA level very
closely after prostatectomy.”
Cancer
LifeCenter - Article 10029
Radiation Therapy Effective for Some Men
With Recurrent Cancer After Radical Prostatectomy
Published in the May/June 2004 edition
of Coping
With Cancer, pg 57
For men with prostate cancer who
have had their prostate removed and later show signs of cancer
recurrence, several factors can help predict response to subsequent
radiation therapy, according to a study in a recent issue of
The Journal of the American Medical Association.
Principal investigator Kevin M. Slawin, MD, of Baylor College of Medicine
and The Methodist Hospital, Houston, and colleagues conducted a multicenter
analysis of the outcome of salvage radiotherapy in a group of men with recurrence
of prostate cancer after radical prostatectomy to identify variables that
are associated with an effective response.
“On the basis of our results, we believe that patients with positive surgical
margins who experience relapse after radical prostatectomy should be strongly
considered for salvage radio therapy, even those with high-grade disease and/or
a rapid PSA doubling time. We have developed a predictive model to estimate the
likelihood of treatment success for a given individual that will help guide physicians
in the selection of patients for this therapy,” the researchers write. “The
clinical implications of our findings are that locally recurrent prostate cancer
appears to be more common than previously reported, that it is frequently associated
with aggressive features, and that salvage radiotherapy offers the possibility
of cure for a substantial proportion of patients with a rapid PSA doubling time
and high-grade cancer”
Prostate Cancer in 15% of Men With Normal
PSA
Best Test May Be to Follow PSA Levels Over Time, Expert Says
By Daniel DeNoon
Reviewed By Michael Smith, MD on Wednesday, May 26, 2004 WebMD Medical News
May 26, 2004 -- Fifteen out of every 100
older men with a normal PSA test actually has prostate cancer,
a new study shows.
PSA --prostate-specific antigen –is a chemical marker given off by
cells of the prostate gland. Suspiciously high PSA levels are often an early
sign of prostate cancer. A PSA over 4 ng/mL usually means that a man will
have to undergo needle biopsy of his prostate.
Men breathe a sigh of relief when their doctor tells them their PSA is normal.
But some men with a low PSA do have cancer. Until now, it wasn’t clear
how many, says researcher Charles A. Coltman Jr., MD, chair of the Southwest
Oncology Group in San Antonio.
“Our study emphasizes that there is a range of PSA levels, from 0 to 4,
across which a man can have prostate cancer,” Coltman tells WebMD. “There
is not a clear cut cutoff based on PSA alone which allows you to define individuals
who need to be biopsied.”
Driving home Coltman’s point is a dramatic picture. It shows a high-grade
prostate cancer -- from a man whose PSA level was less than 1. The picture
and the study it illustrates appear in the May 27 issue of The New England
Journal of Medicine.
Individualized Prostate Cancer Screening
Coltman says that men and their doctors can no longer rely on PSA levels
alone when deciding whether to have a prostate biopsy.
“The situation now is that the individual man with his individual urologist
will have to assess what the person feels are his risk factors,” he says. “In
consultation with his doctor, the individual man must come to grips with the
question of whether or not a biopsy should be done. It will become a more personalized
interaction.”
Who’s at high risk? Men with the following factors have the highest
risk of prostate cancer:
• Age. A man’s risk of prostate cancer increases with age.
• Race. “African American men have the highest incidence of prostate
cancer and the highest death rate from prostate cancer of any men in the world,” Coltman
says.
• Family history. A man’s risk increases if his brother or father
has had prostate cancer.
Prostate Cancer With a Normal PSA
In their study, Coltman and colleagues analyzed data from a clinical trial
of nearly 10,000 men. After seven years, they had a prostate biopsy whether
they had a high PSA or not.
About 3,000 of these men never had a PSA level of more than 4.0. Fifteen
percent of these men tuned out to have prostate cancer. And 15% of these
cancers were life-threatening, high-grade tumors.
The chances of prostate cancer -- and of high-grade cancer-- went up as PSA
levels rose. But high- grade cancers were seen in men at all PSA levels.
Should Doctors Look for Trouble?
How hard should doctors look for prostate cancers? In an editorial accompanying
the Coltman team’s study, Johns Hopkins researcher H. Ballentine Carter,
MD, notes that a man’s lifetime risk of prostate cancer is 16%. Yet
his risk of dying from prostate cancer is only 3%.
“In the age range of 60 years to 80 years, about 30% to 40% of men have
small prostate cancers,’ Carter tells WebMD. “Now, this article tells
us, we have the ability today to detect those.”
If doctors look harder for prostate cancers, they will find them. If they
do this, a lot of men will have unnecessary surgery or radiation therapy.
If they don’t, some men who might have been saved by early detection
will die.
“We already know we are overdetecting the disease,” Carter says. “A
lot of men who have prostate cancer are not going to have their disease harm
or bother them during their lifetimes. Unless they were biopsied, they never
would have known that they had prostate cancer during their life. The lower we
set the PSA threshold, the more unnecessary treatments we’ll have.”
Like Coltman, Carter says a man’s risk factors for prostate cancer
have to be taken into account. But he would be very careful about sending
a man with a midrange PSA level to get a biopsy.
“If I met someone in their 60s at a PSA level of 2.5 or 3.0 or 3.5,1 would
say, ‘Look, there is a high probability you do not have prostate cancer.
Let’s monitor your PSA over time and see if it changes,” Carter explains. “There
shouldn’t be any urgency to try to detect these tumors when PSA is in this
range. These tumors grow very slowly. They still will be curable later when their
PSA is 4.”
Carter warns that it’s a different story for men in their 40s. For
them, a midrange PSA level may well mean trouble.
“These are the men we should be concerned about if they have a prostate
level of 2.5 or 3,” he says.
Carter suggests that more important than a single PSA test is the speed at
which PSA levels change over time. An increase of 0.5 nglmL to 0.75 ng/mL
during the course of a year is worrisome, he says. Coltman, however, says
he wonders whether most men would be comfortable waiting for a year to find
out whether they have cancer.
Coltman and Carter agree that better tests for prostate cancer are sorely
needed. These yet-to-be invented tests would find some marker on prostate
cancer cells. It is hoped the marker would show not just that the cancer
is there, but whether it is a cancer a man has to worry about.
“All of us men sit on a gland like that and we are all concerned,” Coltman
says. “We are frantically engaged in attempts to understand the biology
of prostate cancer. We frantically want to find markers that would not only be
predictive of prostate cancer, but also would help identify those prostate cancers
that are at high risk to go on and spread.”
ARTICLE: The Emerging Role and Needs of
Family Caregivers in Cancer Care
Written By: Myra Glajchen, DSW
Published in the March/April 2004 edition of The
Journal of Supportive Oncology, pp 145-155
Abstract
Involvement of family caregivers is essential for optimal treatment of cancer
patients in ensuring treatment compliance, continuity of care, and social
support, particularly at the end of life. The diagnosis of cancer presents
a major crisis not only to the patient but also to the patient's primary
caregiver. Caregivers often assume this role under sudden and extreme
circumstances, with minimal preparation and uneven guidance and support
from the healthcare system. The primary setting for the delivery of care
to patients with cancer has shifted from the hospital to the home as
a result of increased use of outpatient services for cancer treatment,
shortened hospital visits, longer survival, and the trend for caregivers
to accommodate patients' desire to be cared for at home for as long as
possible. Caring for a family member with cancer poses significant challenges,
with considerable psychological and physical con- sequences for the caregiver.
Family caregiving has gained attention in the past decade with growing
realization that support for family care- givers benefits the caregiver,
the patient, and the healthcare team. This article will attempt to provide
an understanding of the multifaceted role of caregivers in cancer care,
describe the impact of this role on the care- giver's quality of life,
impart an understanding of the caregiver's burden and unmet needs, highlight
adaptational requirements of caregivers along the disease trajectory,
and describe interventions for providing support to nonmedical persons
caring for patients with cancer.
The Emerging
Role and Needs of Family Caregivers in Cancer Care
More than 15 million adults currently provide care to relatives with cancer
in the United States. Caring for patients with advanced medical illness is
a demanding role. As care has shifted from the hospital to the home, the role
of the family caregiver has been transformed into a complex, multifaceted responsibility
that many are ill prepared to assume.
One of the most important roles of
the care- giver is assisting the cancer patient with pain management.
Approximately 30%-45% of cancer patients experience pain in the early
stages of the illness, and an average of 75% of patients with advanced
cancer experience pain. Caregivers are expected to assess and report
information regarding the patient's pain, including the source, nature,
and amount of pain. They must identify and report side effects of the
patient's therapy as well as new symptoms experienced by the patient.
Care- givers are required to decide which medication to dispense, when
to give it and at what dosage. They are frequently required to dispense
pain medication or remind the patient to take a scheduled dose.
Caregivers are expected to keep records
and control the technical aspects of pain management. They are expected
to fill and refill pain prescriptions, which presupposes such skills
as proficiency with insurance reimbursement, the ability to follow
medical instructions, and the ability to anticipate the need for refills
ahead of time. Technological advances in pain management require caregivers
to engage in more complex care tasks, including managing patient-controlled
analgesia pumps, epidural catheters, and home infusions -- responsibilities
that can be terrifying for even the most sophisticated of caregivers.
Nevertheless, involvement of family caregivers is essential for optimal
treatment of cancer patients at the end of life, especially in ensuring
treatment compliance, continuity of care, and social support.
Caregivers function as home health
Rides and companions. They are expected to provide patients with emotional
support, conversation, and other forms of distraction. They are asked
to complete insurance forms, provide meals, arrange transportation,
and provide personal care. The caregiver is forced to navigate the
rapidly changing healthcare system, including obtaining information
that can be difficult to find, managing payment requests, and paying
bills.
Caregivers function as legal and
medical assistants. The patient-family unit is expected to make decisions
about treatment options, goals of care, advance directives, role changes,
and finances. Care- givers manage home-care professionals; handle medical
emergencies; facilitate transitions (eg, home to hospital to hospice
or long-term care facility); obtain medical, financial, and legal advice;
prepare for the patient's death; and arrange the funeral.
Clearly, caregivers of cancer patients
have multifaceted expectations and needs. Unfortunately, the healthcare
system does little to address caregivers' needs and concerns-they are
automatically assumed capable of performing complex medical care tasks
at home, their symptom management and coping skills are seldom appraised,
and their own physical health is rarely considered.
Impact
of Caregiving on the Caregiver's Quality of Life
The cancer experience affects not only the patient but also the caregiver,
and in profound ways. Caring for a person with cancer is demanding and overwhelming
and can be a stressful experience that may erode the physical and psychological
health of the caregiver. Caregivers describe the experience of caring for a
loved one who is near death as influencing many domains of life. The impact
of pain on a caregiver's quality of life has been described as having four
distinct dimensions: physical, psychological, social, and spiritual.
PHYSICAL
IMPACT
Physical demands of caregiving are generally related to the patient's medical
situation, including disease stage, symptoms, functionality, fatigue level,
and side-effect profile. Cancer patients require various levels of support
depending upon the stage of their disease; the more time required of the caregiver
in doing tasks for the patient, the more disrupted will be the caregiver's
schedule and emotional well-being. Caregivers who are providing 24-hour-a-day
care often experience cumulative sleep disruption, and fatigue is common. From
a physical and practical standpoint, caregiving has been described as relentless,
marked by constant monitoring of the patient's medical condition, pro- vision
of personal and nursing care, and assuming duties previously performed by the
patient. Care- givers describe stress and strain that can parallel or surpass
the patient's. In fact, at least one prospective population-based cohort study
found that the strain of caring for a patient with cancer in- creased the caregiver's
risk of mortality by 63% within 5 years.
PSYCHOLOGICAL
IMPACT
Psychological demands of caregiving relate to anxiety, distress, and depression
in both the patient and the caregiver. Caregivers have their own emotional
responses to the patient's diagnosis and prognosis and may require coaching
and emotional support separate and apart from the patient. When family caregivers
undertake new and stressful responsibilities associated with caregiving, they
experience profound psychological strain. Family members of seriously ill patients
have been found to experience as much, or more, distress than even the patient
suffers. This distress results from both the caregiver role and from witnessing
the patient's suffering. Caregivers of patients with cancer-related pain report
even higher levels of depression, tension, and mood disturbance than caregivers
of pain-free patients. Over the long term, caregiving may result in serious
depression, social withdrawal, and impaired quality of life.
Although most research has focused
on the assessment of the negative psychological ramifications associated
with caregiving, the psychological rewards and satisfaction of caregiving
have also recently been recognized. One study found that levels of
distress were reduced when positive feelings outweighed the negative
feelings of care- giving. Another study demonstrated that home-based
palliative caregiving resulted in life-enriching experiences for many
caregivers, including opportunities for reciprocity, finding meaning
in the situation, and spending time with the patient. Still another
study found that in home- based family caregiver situations, positive
bereavement outcomes predominated over negative reactions because the
caregivers had an overall sense of having accomplished something difficult
and extremely valuable.
SOCIAL
IMPACT
The social demands of caregiving profoundly impact the caregiver's burden,
especially with regard to relationship and financial factors. The characteristics
of the relationship between patient and caregiver can have important ramifications.
Approximately 70% of caregivers of cancer patients are spouses, 20% are adult
daughters or daughters- in-law. and 10% are friends or extended-family members.
If marital or relationship strain predates the onset of the patient's illness,
the caregiver may approach caregiving grudgingly. Elderly spouses or spouses
in need of assistance themselves may be more distressed by the patient's physical
impairments owing to their age-associated health limita tions. For adult children
who are fulfilling the caregiving role, juggling the demands of work, children,
and spouses in addition to the demands of caregiving can be overwhelming.
The financial impact and economic costs associated with cancer also contribute
to caregiver bur den. For patients with no insurance or inadequate insurance
coverage, obtaining pain relief may be a struggle. Even patients with adequate
insurance incur substantial financial burdens related to deductibles, co-payments,
uncovered services such as transportation or home care, lost salaries and work,
over-the-counter medications, household modifications, and alternative treatments
such as herbs and vitamins. Limitations on the number of prescriptions allowed
by some insurers, as well as monthly and refill limits, further contribute
to the burden placed on caregivers.
SPIRITUAL IMPACT
Spiritual well-being has been increasingly recognized as an important factor
for patients with cancer and their caregivers. Spirituality can have a profound
influence on the distress, ability to cope, and quality of life of seriously
ill patients and their family caregivers. While religion is defined as a specific
set of beliefs and practices associated with a recognized religious denomination,
spirituality is described as a construct that includes faith and meaning [18].
Spirituality encompasses experiential and existential aspects, such as a sense
of peace and connectedness [19]. Spirituality has been de - fined as a thought
process or belief system that al lows a person to experience a transcendent
meaning in life—including the conviction that one is fulfilling a unique
role and purpose in one’s life [20, 21].
A recent study evaluating quality of life, life satisfaction, and spirituality
in patients with cancer or in patients undergoing rehabilitation found that
spirituality was one factor among many associated with both life satisfaction
and quality of life [22]. Other studies have also demonstrated relationships
between spiritual factors and lower levels of anxiety and distress in cancer
patients and between spirituality and experiencing a better quality of life.
It has been proposed that spiritual beliefs and practices can enhance patients’ well-being
through social support (sense of belonging) and improved coping strategies
(higher self-esteem and sense of control over illness) [23]. Spiritual beliefs
also may help patients and caregivers construct a meaningful framework fir
their illness and result ant suffering, and this may promote acceptance of
the situation [24].
Taylor [25] surveyed patients and their caregivers to determine their expectations
with regard to having their spiritual needs addressed. The results of this
survey supported the notion that many patients and caregivers were eager for
spiritual care. Spiritual needs identified by participants in this study included
kindness and respect; talking and listening; prayer; connecting with symmetry,
authenticity, and physical presence; quality temporal nursing care; and mobilizing
religious or spiritual resources.
Unmet Caregivers’ Needs
Despite the known adverse effects of family caregiving, the healthcare system
does little to address caregivers’ needs and concerns. Unfortunately,
in this era of high patient volume and brief patient appointments, caregivers
may be acknowledged only briefly during the decision-making and discharge-planning
portions of patients’ medical visits [Glajchen M, Kornblith A, Homel
P, Fraidin L, Mauskop A, Portenoy RK. Development of a brief caregiver screening
scale for caregivers of the medically ill (2003, in progress)]. Few practitioners
or institutions provide effective programs for screening for caregiver burden
or distress or for offering help when it is identified. Without proper support,
caregivers face an extreme burden, both psychologically and physically.
To provide adequate emotional and physical support for the caregiver, the needs
of caregivers, especially their unmet needs, must be appreciated. Caregivers
of cancer patients frequently report un met needs in physical, psychosocial,
economic, and instrumental domains, In a recent literature review, 60%—90%
of patients and their caregivers were found to have a need for assistance in
at least one area, with the needs most often reported by cancer patients and
their caregivers being assistance with personal adjustment to illness (38%—70%),psycho-
social support (30%—60%), transportation (31%.— 58%), financial
assistance (50%—52%), home care (1O%—42%), and medical information
(3%—29%) [26]. Between 18% and 30% of patients and care- givers reported
that assistance for at least one need was unmet.
Other studies have also demonstrated a high degree of unmet needs for caregivers.
In a study of terminally ill adults and their caregivers, 87% of patients reported
unmet needs, with the most frequently cited being assistance with transportation
(62%), homemaking services (55%), nursing care (29%), and personal care (26%).
Most of the pa tients relied completely on family and friends to provide this
assistance; only 15% relied on paid assistance 127]. For caregivers of cancer
patients, such care may translate into 20 or more hours of care a week, the
equivalent of an unpaid part-time job [ Before developing programs to meet
care- givers’ needs, an assessment of their most pressing concerns is
essential.
Cross-Cultural Considerations
Studies show that Hispanic and African- American patients and caregivers underutilize
community health resources—counseling and support groups, home care,
residential care, and hospice ser vices. The reasons for this underutilization
are many. One important reason is that strong family ties may prevent minority
caregivers from seeking help outside the family unit. Both Hispanic and African-American
caregivers feel obligated to live close to their parents in order to provide
assistance as needed [ In a 1996 study comparing African-American, Caucasian,
and Hispanic caregivers, Guarnaccia and Parra [30] found that 65% of Hispanic
patients and 60% of African-American patients lived with the family of their
caregiver. The minority families relied more on informal caregiving front friends
and relatives and had larger social support networks than the Caucasian families.
However, this increased sense of obligation to provide care for older family
members is associated with more caregiving hours, greater resignation about
caregiving, higher caregiver strain, and a larger reduction in household income
than that re ported by Caucasian caregivers [31]. A study by Covinsky et al
[32] analyzed reports of employment loss due to caregiving. Results showed
that African-American and Hispanic caregivers were more likely than Caucasian
caregivers to reduce their work hours to care for the patient. In addition,
minority caregivers were reluctant to use for mal nursing homes services for
their loved one. The decision to reduce work hours rather than place their
relative in a nursing home was associated with increased psychological, social,
and financial burdens.
In a recent landmark study, the impact of pain on Caucasians, African-Americans,
and Hispanics was studied. Hispanics were less likely to know the cause of
their pain than either of the other two groups. Hispanics were the least likely
to visit a healthcare practitioner for their pain, which may not be surprising
considering that, of the three groups, they were the least likely to have medical
insurance, Hispanics reported having friends and family who were “very
supportive” more often than did African-Americans. However, Hispanics
were more likely to feel isolated, to say that pain had ruined their life,
and to feel that they were not valued by their family and friends [33].
In the same study, factors that predicted disabling pain included an annual
income of less than $25,000 and an educational level below that pf a high-school
graduate. Although ethnicity was not a factor in predicting disabling pain,
Hispanics and African were more likely than Caucasians to have lower in comes
and lower levels of education, making them more at risk for disabling pain.
Accepting the burden of caregiving may lead to depression. Caregivers who have
no outside help are more depressed than those who receive help from secondary
informal caregivers or formal resources [29]. Despite reporting stress, many
His panic and African-American caregivers do not seek outside help even when
they are aware of support groups and other resources. The barrier to care may
he a reluctance to share familial problems with outsiders. However, minority
caregivers respond better to direct recruitment efforts through personal contacts
and face-to-face inter views, strategies that are often too labor intensive
for typical caregiver programs.
Similarly, underuse of hospice services has been reported in both the African-American
and His panic communities. For African-Americans, barriers to hospice use include
lack of availability, lack of community awareness, lack of trust in social
ser vice providers, and misperceptions of the role of hospice services, Since
African-Americans rely heavily on closely knit groups of friends and family,
they are less inclined to welcome strangers, such as hospice workers, into
their networks [34]. In addition, a prerequisite to hospice care is the presence
of a primary caregiver in the home. Since African-American family members often
have to work, no one is at home to care for the patient, and the patient may
thus be barred from hospice care. Members of the African-American community
may also he uncomfortable with the concept of palliative care, which seems
to encourage the patient to give up and stop fighting [35]. These cross-cultural
issues are important in assessing caregivers’ needs and in designing
clinical and educational programs to meet those needs.
Adaptational Tasks at Different Points
Along the Disease Course
The caregiver’s role and the burden of caregiving are profoundly affected
by the cancer patient’s stage of illness and goals of care. Caregivers
of patients receiving palliative care have been shown to have significantly
lower quality-of-life and health scores than patients who are in active, curative
treatment [35]. The physical and emotional demands of caregiving reach their
peak as the disease progresses to the terminal phase. The period during which
patients enter hospice is often characterized by profound unrest and intense
strain. In addition to assuming many of the patient’s prior domestic
responsibilities, family caregivers may have to forego social activities and
work duties, resulting in job insecurity and isolation. Caregivers providing
end-of-life care have been shown to experience increased emotional distress,
regardless of the amount of care provided, when they are limited in their ability
to participate in valued activities and interests [36]. Extensive research
has shown that caregivers whose loved ones are receiving palliative care are
at risk of developing a variety of psychological and physical problems, including
anxiety, depression, fatigue, reduced self- esteem, and somatic health problems
[11, 37, 38].
Recent studies have demonstrated that the caregiving experience affects the
caregiver not only during the patient’s life hut also following the patient’s
death, Inefficient psychological symptom control during the last months of
a cancer patient’s life may predispose the surviving partner to long-
term psychological morbidity [39]. In addition, the caregiver may he affected
by the patient’s care, even after the patient has died. Bass et al [39]
found that caregivers’ perceptions of the intensity and quality of support
provided to the patient be fore death had a significant impact on their subsequent
bereavement adjustment. In fact, the care- giver’s perception of the
patient care he or she provided was more important for the surviving spouse’s
or children’s adjustment than the support given directly to the caregiver
during bereavement.
Assessment of Caregiver Quality of Life
and Burden
Healthcare providers can he instrumental in providing direct assistance and
referral to the care- giver so that patient care and caregiver well-being can
he optimized. Several tools have been developed to assess caregiver quality
of life [ and a brief caregiver screening scale to measure care- giver burden
has recently been developed [Glajchen M, Kornblith A, Homel P, Fraidin L, Mauskop
A, Portenoy RK. Development of a brief caregiver screening scale for caregivers
of the medically ill (2003, in progress)]. Tools such as these can he used
to assess caregiver functioning and to direct appropriate interventions. Because
changes in patient- care needs and illness trajectory over time create different
demands on the caregiver, the caregiver should he assessed at regular intervals
throughout the course of the illness. The challenges faced by a caregiver at
diagnosis or during an acute health crisis are dramatically different from
the challenges faced as the patient nears the end of life.
Interventions for Caregivers of Cancer Patients
In response to the research conducted over the past two decades that has provided
an understanding of caregivers’ roles and needs, several types of interventions
have been developed with the goal of addressing these needs. In general, four
types of interventions have been recognized as promoting the caregiver’s
physical and emotional well-being: educational programs intended to increase
care- givers’ knowledge; counseling or psychotherapy intended to reduce
anxiety and depression; hospice or palliative home care intended to provide
medical and psychosocial services for end-of-life care; and problem solving
or skill building intend ed to improve skills and increase confidence.
EDUCATIONAL INTERVENTIONS
Education is an effective tool for helping cancer patients and their families
understand the disease process, pain, other symptoms, and treatment options
[46]. Information about the disease trajectory, the anticipated course, and
the range of emotions experienced by families helps normalize the experience
and enhances the sense of control that is often absent in cancer. The most
important periods along the disease course for care- givers to receive information
appear to be diagnosis, period of initial hospitalization, initiation of new
treatments, recurrence, and the end-of-life phase [47]. However owing to the
chronic nature of cancer and the range of tasks that need to he mastered at
different points, caregivers’ information needs change over time [48].
Caregivers want factual information about cancer, its treatment, related symptoms,
and side effects. They need specific details about what to do and how the particular
cancer is likely to behave. In a recent survey of the information and education
needs of cancer outpatients and their caregivers, the priority areas reported
were [48]:
• management of pain;
• management of weakness and fatigue; and
• the types of services available to facilitate patient care
at home.
In the area of pain management, caregivers need to understand pharmacologic
issues and medication instructions. Specifically, caregivers need instruction
about which medications to use for pain relief, when to give the medication,
how to assess the efficacy of pain control, how to monitor for side effects,
arid how to identify negative results or ineffectiveness [49]. Caregivers have
been shown to benefit from education in nonpharmacologic strategies for reducing
pain, such as massage, use of lotions and ointments, and use of heat and cold
compresses. Caregivers have responded favorably to education in distraction
and relaxation techniques, as such skills promote caregiver confidence and
reduce helplessness. Similarly, skills in positioning with pillows, mobilizing
the patient, and assisting with ambulation in an effort to promote pain relief
can be taught [49].
Especially important in cancer is the need to educate caregivers about alternative
health practices that can exacerbate cancer pain and under mine treatment effectiveness.
Toxic side effects, such as irreversible neuropathy, bleeding, and electrolyte
imbalances, can result from alternative medical approaches to cancer treatment
[50]. Desperate families may make erroneous decisions based upon misinformation
in the media and on the Internet. Caregivers must be educated on the importance
of reporting all alternative health practices to a healthcare provider. Importantly,
caregivers must he educated about the support services that are available to
them. Several studies have shown that patients and caregivers underutilize
available resources owing to perceived lack of access, lack of information,
or emotional exhaustion.
Unfortunately for caregivers, studies of doctor- patient communication show
that medical issues tend to dominate, physicians tend to drive the discussion,
and systems obstacles, such as lack of time, lack of space, and fragmentation
in care, further hinder information exchange [48].
The role of family caregivers in fostering or hindering treatment compliance
should not be under estimated. Caregivers’ knowledge and attitudes about
pain management may influence the patient. If caregivers harbor fears of addiction,
overdosing, or indirectly causing discomfort through side effects, they may
guard the pain medication supply, limit its use, and undermedicate the patient
[51]. Caregivers need training in the management of side effects, as side effects
can cause patients to abandon the pain-treatment protocol prescribed for them.
Educating caregivers about anticipated side effects and strategies for their
amelioration is therefore essential.
COUNSELING OR SUPPORT INTERVENTIONS
Counseling or group-support intervention efforts are generally designed to
enhance morale, self-esteem, coping, and sense of control while reducing anxiety
and depression. Caregivers with low levels of emotional support have been identified
as being more depressed over time [52]. Caregivers may be better equipped to
meet their challenges if given the opportunity to discuss common problems and
fears with healthcare professionals or others in a similar situation. Support
groups, which promote information exchange and informal networking, appear
to be most useful for providing social sup port for caregivers who are receptive
to this type of assistance. Some caregivers, however, prefer individual counseling
by clinicians whom they may recognize as “the experts.” Caregivers
with psycho logical issues may respond best to individual counseling.
HOME HOSPICE AND PALLIATIVE CARE INTERVENTIONS
Hospice care involves a team-oriented approach for providing emotional and
spiritual support for the patient and family, as well as offering expert medical
care and pain management. Generally, this care is provided in the patient’s
home or in a home-like setting. Palliative care is a medical specialty with
the goal of extending the principles of hospice care to a broader population
that could benefit from this type of care earlier in the disease process. Both
hospice and palliative care focus on providing equal attention to the physical
and psychosocial aspects of care, and both involve the patient and caregiver
as the unit of care.
As patients become more debilitated, the demands for nursing care, social support,
financial resources, and spiritual care increase considerably. Caregivers of
palliative care patients report an increased need for time for themselves away
from the home and time for their own personal needs [53]. Many caregivers report
insufficient time to rest and inadequate sleep. To address caregivers’ needs
for respite and personal time, the use of volunteers and short-term admission
to inpatient facilities are useful. At this stage in the disease, care- givers
should be instructed in methods of helping patients maintain some independence.
Effective coping strategies reported by caregivers of home hospice cancer patients
include learning more about the problem at hand, keeping busy, thinking positive,
and talking about the problem with family and friends [54].
PROBLEM-SOLVING AND SKILL-BUILDING INTERVENTIONS
Throughout the caregiving process, caregivers assume a variety of new and complex
roles and frequently lack the requisite resources or skills to undertake these
roles. Nine core caregiving processes have recently been identified (Table
1) [55].
Mastery of each of these skills can be daunting for caregivers; therefore,
interventions designed to help caregivers master these skills should he employed.
The most widely recognized and well-studied educational model for problem solving
and skill building for caregivers is the Creativity, Optimism, Planning, and
Expert information (COPE) program [56]. This program is designed to maximize
care- givers’ effectiveness, sense of efficacy, and satisfaction through
its four components. Models such as the one offered by COPE may empower caregivers
and patients in coping with illness and can help moderate caregiver stress.
The Role of the Healthcare Team
Caregiving for a family member with cancer is a multifaceted, dynamic endeavor
that has a pro found impact on the caregiver’s well-being, the patient’s
care, and the treatment plan as a whole. Each member of the healthcare team
has a role to play in meeting the needs of caregivers.
PHYSICIANS
Emanuel et al [27] found that caregiver bur den was significantly reduced by
physicians who practiced “active listening.” In addition to listening
attentively and proactively, oncologists are encouraged to provide information
about the disease, its expected course, resources for pain management, and
expected side effects of treatment.
In the absence of accurate information, patients and caregivers are more susceptible
to misinformation from informal sources. Accurate information helps to reduce
uncertainty and empowers care- givers by giving them a sense of control. In
addition, caregivers derive emotional support from time spent with the healthcare
professional. In general, caregivers report needing information about their
loved one’s cancer, symptom etiology, what to expect in the future, treatment
side effects, and management of medical emergencies [51].
NURSES
Nurses can play a role in integrating caregivers into the care plan by reinforcing
medical education efforts and promoting an active role for caregivers in the
care plan. Education for caregivers about the causes of cancer pain, the rationale
for selecting a treatment approach, providing around- the-clock dosing for
pain management, knowing what side effects to anticipate, and the treatment
of those side effects should become a routine part of medical practice. In
addition, most caregivers report that they discover nonpharmacological pain-management
techniques informally or by trial and error. A brief instructional session
by a nurse, rein forced with materials in print or electronic form, can serve
as a catalyst for implementing these techniques and provide guidance for the
proper use of heat, cold, massage, positioning, imagery, distraction, and other
techniques [57].
SOCIAL WORKERS
Social workers can provide caregivers with guidance and information on the
physical care of cancer patients; selection of home health aides; and accessibility
to respite programs, counseling, sup port groups, financial assistance programs,
and other resources [5]. They can provide counseling on illness adjustment
issues and evaluate distress, coping, and the quality of life of both patient
and caregiver, as well as the quality of the patient caregiver relationship.
Referral to a psychologist or psychiatrist may he indicated for highly distressed
caregivers. In addition, the social worker is adept at addressing the financial
realities of treatment arid providing guidance in negotiating the healthcare
system, a task that can become over whelming for overburdened and fatigued
caregivers [58]. Costs associated with cancer include co payments, deductibles,
and out-of-pocket costs for over-the-counter medications, as well as hidden
costs arising from transportation, tolls, parking, nondrug medical supplies,
environmental modifications, dietary needs, and lost wages [46].
--------------------------------------
Table 1
Nine Core Caregiving Processes
1 Monitoring (ensuring changes in the patients condition have been noted)
2 Interpreting (making sense of what is observed)
3 Making decisions (selecting a course of action)
4 Taking action (carrying out decisions and instructions)
5 Providing hands-on care (carrying out nursing and medical procedures)
6 Making adjustments (progressively refining caregiver’s actions)
7 Accessing resources (obtaining what is needed)
8 Working together with the patient (sharing illness-related care in a way
that is sensitive to the personalities and individuality of both patient and
caregiver)
9 Negotiating the healthcare system (ensuring patients needs are adequately
met)
Source: Schumacher et al [55]
----------------------------------------
CHAPLAINS
Finally, the healthcare team’s chaplain can assess the role of religion
and spirituality within the family, provide spiritual counseling, and guide
other team members in strategies to address spiritual concerns and distress.
Advanced-stage cancer—with its higher physical-symptom burden, greater
distress, and reductions in quality of life and coping ability—may intensify
spiritual and religious concerns [59]. Most patients want their spiritual needs
and preferences to be addressed by their physicians [ Because these preferences
may play a strong role in end-of-life decision making, they should become an
integral part of all cancer treatment.
In sum, the social, psychological, and emotion al aspects of caregiving for
the patient with cancer should he identified and supported by the entire healthcare
team. Recognizing the psychological vulnerability among caregivers of cancer
patients throughout the trajectory of the illness is essential in implementing
specific interventions to promote coping, alleviate anxiety, and encourage
problem solving.
End Article - For References Please
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Journal of Supportive Oncology
The American
Cancer Society estimates that during 2003 about 220,900 new
cases of prostate cancer will be diagnosed in the United States.
Prostate cancer is the most common cancer, excluding skin cancers,
in American men. Prostate cancer is the second leading cause of
cancer death in men in the United States, exceeded only by lung
cancer. The American Cancer Society estimates that 28,900 men in
the United States will die of prostate cancer during 2003. Prostate
cancer accounts for about 10% of cancer-related deaths in men.
-
Among men diagnosed with
prostate cancer, 97% survive at least 5 years, 79% survive at
least 10 years, and 57% survive at least 15 years. These figures
include all stages and grades of prostate cancer but do not account
for men who die from other causes.
-
Eighty-five percent of all
prostate cancers are found in the local and regional stages (local
means it is still confined to the prostate; regional means it
has spread from the prostate to nearby areas, but not to distant
sites such as other organs). The 5-year relative survival rate
for all of these men is nearly 100%.
-
Of the roughly 6% of men
whose prostate cancers have already spread to distant parts of
the body at the time of diagnosis, 34% will survive at least
5 years.
(Information provided by the American
Cancer Society)
An article that appeared on WebMD in
June, 2003 asked the question, "Why would a healthy man worry
about prostate cancer?" After skin cancer, prostate cancer
is the most common cancer in American males. Men's risk of getting
prostate cancer is 16.7% however prostate cancer grows very slowly.
Many men who have prostate cancer never know about it and usually
die from something other than the cancer. Currently, early detection
is the best way to prevent prostate cancer. Doctors advise men
older than 50 to have annual digital rectal exams and PSA tests.
However, men who are at a higher risk, particularly black men need
to begin their annual screening at age 40.
In September 2003 WebMD reported that the number
of Americans that die from the four most common types of cancers
is continuing to decrease. The report went on to show that as of
the late 1990's the death rate for all cancers began to stabilize.
Deaths due to prostate cancer have declined since 1994, but the
rate of new prostate cancers has grown by 2-3% a year since 1995.
From 1996 to 2000, the number of new prostate cancers was 66% higher
among black men than white men. The report credits cancer screening
for much of the gain of the new cancer cases, as well as the decline
of cancer death rates.
A study has shown that men who work with pesticides
may have a slightly higher risk of prostate cancer than others.
New research is showing that men whose job exposes them to high
levels of pesticides have a 13% higher risk of prostate cancer
than those with low levels of pesticide use. These findings were
based on a study conducted from 1995 to 2001. This study was posted
in the Journal
of Occupational and Environmental Medicine.
In the October 2003 issue of Oncology
Times, Professor Richard Peto commented that "Suddenly
in the 1990s death rates from breast cancer and prostate cancer
turned around and started to drop," and a statistical analysis
of the data from dozens of trial over 40 years indicates that
the main reason is the introduction of hormone therapy, although
earlier detection and better local control of |