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Dr. Kattlove is Medical Editor, Health Promotions Department, American Cancer Society, Los Angeles, CA.
Dr. Winn is Chair, National Comprehensive Cancer Networks Guidelines Steering and Principal Investigators Committee, National Comprehensive Cancer Network, Rockledge, PA.
| ABSTRACT |
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| INTRODUCTION |
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Cancer survivors have a spectrum of unique medical needs that require focused attention. All patients are at risk for recurrence of their primary tumor. Others may develop a second primary cancer because of genetic susceptibility or as a consequence of their treatment. Many will need psychosocial support or help in dealing with the physiologic consequences of their cancer treatment. The question that we will address in this article is: what measures should be taken to care for and follow cancer survivors? Our purpose is to provide information to physicians assuming the primary responsibility of caring for patients who are thought to be cured or at least free of their cancer.
During their follow-up, cancer survivors may require care for diverse needs that span a broad spectrum of medical areas. The physician providing follow-up services should be prepared to evaluate the patients needs in each of these areas and initiate appropriate interventions or referrals when needed. The specific domains that make up the constellation of problems facing the cancer survivor include:
Another important aspect of the management of cancer survivorship must be addressed: namely that the issues that arise for the cancer survivor are, for the most part, disease (tumor) specific. Thus, the follow-up of a breast cancer survivor compared with a colorectal cancer patient will involve different problems within each of these domains. The physician involved in long-term management of these patients must realize that a comprehensive set of knowledge and skills is required. In order to assist in this endeavor, we have undertaken to detail appropriate management that is tumor-specific (Table 1
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Very few studies have examined the benefits of follow-up care on quality of life. Anxiety associated with follow-up visits would be one concern. Visits may increase anxiety because of a patients fear of recurrence.5 Or they might lessen it when nothing is found. Most cancer patients welcome follow-up visits in spite of some psychological distress before the visit.6 In general, this distress is mild. In a study by Lampic, et al.7 only about one-fifth of patients who were in remission and receiving follow-up care for their cancer reported anxiety. This lessened as the time from diagnosis increased.
One reason often cited for follow-up exams is patient demand. This is probably not a valid reason. Gulliford, et al.8 have reported a randomized study in which women with breast cancer were followed up with routine quarterly visits or only an annual exam at the time of mammography. There was no difference in patient satisfaction between the two schedules, and perhaps of even greater interest, 16 percent in each group thought the follow-up schedule was excessive.
We have chosen for discussion those cancers that are likely to undergo long-term follow-up care and are seen most frequently and typically by primary care physicians as well as by specialists.
| BREAST CANCER |
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Surveillance After Primary Treatment
Monitoring for recurrent breast cancer entails evaluation for local recurrences in patients who have undergone breast-conserving surgery and for disseminated recurrences in all patients. A large Italian study10 of 2,233 women treated with breast-conserving surgery followed by radiation therapy to the breast found a local recurrence rate of approximately one percent per year. The National Surgical Adjuvant Breast and Bowel Project (NSABP) found a cumulative rate of 14 percent 20 years after breast-conserving surgery and post-operative radiation therapy.11 The rate was 39 percent if radiation was not given. Follow-up after 20 years revealed a 39 percent recurrence rate for those receiving the adjuvant irradiation and 14 percent in those who did not.
In the Italian cohort, distant recurrences were found most frequently in the second year after treatment. This rate declined thereafter so that in the fifth year, only 1.5 percent developed distant recurrences, and in the tenth year, only one percent. These rates were affected by tumor stage and patient age. A review12 of the Eastern Cooperative Oncology Group data for 3,585 patients found recurrence rates twice that of the Italian study, but with the same pattern of greatest recurrence rate in the second year. The differing results in the two studies probably arose from the greater proportion of node-positive women in the American study. Other studies have reported similar local and distant recurrence rates.13,14
What benefit, if any, is there for careful search for these recurrences? Two major randomized trials15,16 and a Cochrane Review17 have concluded that there is no survival benefit in routine laboratory and imaging testing as part of a follow-up regimen. In the Interdisciplinary Group for Cancer Care Evaluation (GIVIO) study15 of routine visits and mammograms versus routine bone scans, chest x-rays, and liver ultrasounds, the five-year survival was 82 percent and 80 percent for the two groups, respectively, demonstrating the lack of benefit for intensive routine testing. A recent study found that one-third of recurrences were manifested by history, one-third detected by physical exam, and one-sixth by mammogram.18
Another study19 found that primary care physicians could successfully provide follow-up care. Patients were randomly assigned to follow-up by specialists or primary care physicians. Specialist care did not lead to earlier diagnosis of a recurrence, improved quality of life, or lower anxiety levels. These and other data led to follow-up/surveillance guidelines issued by the American Society of Clinical Oncology20 and the National Comprehensive Cancer Network (NCCN)21 that advised only routine histories and physicals at three to six month intervals, with lengthening of the interval to annually five years after treatment along with annual mammography. Annual pelvic exams were also recommended, parti-cularly if the woman was taking tamoxifen. No laboratory testing or imaging studies were recommended.
Assessing Genetic Susceptibility
This is an important issue for women with breast cancer. About 5 to 10 percent of breast cancers are caused by an inherited mutation of either the BRCA1 or BRCA2 gene.22 Women with these mutations usually develop their cancer early in life and have a strong family history of breast cancer. Any women with these clinical features should undergo genetic counseling and possibly testing for these mutations. If they do carry the gene, they will be much more likely to develop recurrent ipsilateral as well as contralateral breast cancers. In addition, they have a high risk of developing ovarian cancer.23 Prophylactic oophorectomy should be considered, particularly after childbearing is complete, although some of these women will develop peritoneal or tubal carcinomas.24 Oophorectomy in BRCA carriers decreases the incidence of breast cancer as well as ovarian cancer.25 Other strategies to reduce the breast cancer risk are prophylactic mastectomy, which is highly effective26 and treatment with tamoxifen for five years.27 Although these maneuvers have been mainly reported for women who have not developed cancer, they should still be valid for those who have. Women who have opted not to undergo prophylactic mastectomy are traditionally followed with mammography. Recent studies have shown that breast magnetic resonance imaging (MRI) may be more effective, particularly for younger women.28
In addition to their responsibility for following the cancer patient if a genetic syndrome is present, the treating physician must also assume a public health role and provide information regarding the management of at-risk family members. Current recom-mendations call for the initiation of screening at age 25 or five years younger than the earliest reported cancer in the family.29
Many women with a family history of breast cancer will not carry known specific gene mutations. Their risk of developing cancer may be higher than normal also. Other than consideration of the use of preventive tam-oxifen, they are followed in the same way as women who have no family history.
Diagnosing a Second Primary
Women with one primary breast cancer are at greater risk for developing a second primary breast cancer than the normal population. The probability of a metachronous tumor developing within 20 years of the primary tumor has been reported to be in the range of 15 percent.30 Annual mammograms are therefore indicated for the remainder of the patients life. Women with ductal carcinoma in situ,31 lobular carcinoma in situ,32 and small invasive breast cancer33 may receive tamoxifen. There is evidence that tamoxifen will reduce their chance of ipsilateral breast cancer recurrence as well as reduce breast cancer incidence in the contralateral breast.
Women with BRCA mutations are not only at risk of ovarian cancer, they also have a higher risk of non-colonic gastrointestinal (GI) cancers.34 There are no specific guidelines for screening for these. Finally, there may be an increased risk of myelodysplasia and acute myelogenous leukemia in women who have had chemotherapy, particularly intensive-dose chemotherapy.35 There is no established value in frequent blood counts unless there are symptoms of anemia, thrombocytopenia, or frequent infections.
Monitoring and Treating Complications of Treatment
Complications can arise either from surgery, hormonal therapy, or chemotherapy. The major complication of the surgery is lymphedema secondary to the axillary dissection. This occurs about 20 to 30 percent of the time with numbers ranging from 10 percent to over 40 percent.36 Radiation to the axilla after dissection will lead to the highest incidence. With the increasing use of sentinel lymph node mapping this should decrease but will not disappear; women with positive sentinel nodes will inevitably undergo a complete axillary dissection. Treatment with arm elevation, elastic sleeves, and sometimes, special lymphedema massage therapy may be helpful.37 It is important that this be treated early since as the edema increases, it becomes harder to resolve.
In addition to its development after high-dose therapy, leukemia also occurs after treatment with alkylating agents such as cyclophosphamide or topisomerase inhibitors, such as topotecan or etoposide.38 The latter are rarely used to treat breast cancer. The development of heart failure secondary to anthracycline therapy is a relatively uncommon side effect in breast cancer patients who have received these agents as part of their adjuvant chemotherapy regimens. This complication becomes more prevalent after doxorubicin cumulative doses of 550 mg/m2;39 most adjuvant regimens stop below this dose. The combination of trastuzumab and anthracyclines has been found to lead to a particularly high incidence of congestive heart failure.40 Because trastuzumab is not recommended for adjuvant therapy outside a clinical trial, it should not be frequently encountered in the follow-up of the breast cancer survivor. Most physicians use echocardiography to assess cardiac function when there are symptoms.
Tamoxifen therapy causes symptoms of estrogen deprivation.41 Hot flashes and night sweats are two common complaints. Another is vaginal discharge. Sexual function is usually unaffected. Clinical trials have shown that some selective serotonin reuptake inhibitor (SSRI) antidepressants can partially alleviate the hot flashes.42 Soy products are not recommended because these contain estrogen-like substances that may interfere with tamoxifen.43 Adjuvant therapy with tamoxifen increases the risk of endometrial cancer.44 No screening test for endometrial cancer has proven useful in this context. Routine yearly pelvic exams and careful evaluation of any abnormal bleeding with ultrasound appear to be the best strategy.45 Tamoxifen will increase the risk of venous thrombosis and pulmonary embolism, so the treating physician should be alert to the possibility of the development of these serious events.46
Dealing With Altered Physiologic Status
The major physiologic problem that breast cancer survivors face is menopause. This will occur naturally, but may be hastened by chemotherapy. Osteoporosis is one concern, particularly in thin women. They should be assessed for osteoporosis. If it is found, they should be encouraged to take adequate amounts of calcium and exercise, but may require pharmacological treatment.
Weight gain after chemotherapy can be distressing for many women. This seems to be a consequence of the adjuvant therapy and menopause.47 Therapy is difficult, but im-portant, since increasing weight seems to lead to poorer prognosis.48
Particularly distressing to many women are the symptoms of menopause.49 They can occur quite abruptly with chemotherapy or, of course, oophorectomy. Although retrospective studies have not shown harm from hormone replacement therapy in breast cancer survivors,50 no randomized control studies have been performed that would allow physicians to confidently prescribe these drugs. Patients need to be completely involved in decision making if they wish to take these agents. The recent findings of increased risk of developing breast cancer while on hormone replacement thera-py with estrogen and progesterone makes recommendations in this area even more difficult.51
Weakness and inability to use the arm on the affected side after axillary dissection may plague some patients. Physical therapy can help alleviate this problem. The weakness often reverses by six months after surgery.52
Finally, there is concern about what some have called "chemo brain." Cognitive im-pairment has been found by specific testing two years after treatment in about one-third of women treated with high-dose chemotherapy.53 Patients themselves recognize this as trouble with memory, concentration, and thinking. No treatment has been proposed for this; it is not known if this eventually disappears. A recent study found persistent defects five years after treatment.54
Psychosocial Problems of Breast Cancer Survivors
Although the diagnosis of breast cancer and its subsequent treatment has a major impact on a womans life, there is little residual psychological effect once treatment has been completed. A large prospective study of women five years after primary treatment for breast cancer found that their mental health functioning was better than at diagnosis and was slightly above the population norm for healthy women.55 Other aspects of quality of life were not significantly different from baseline, but women who received chemo-therapy did have somewhat lower values.
Fear of cancer recurrence is found in the majority of patients. Others are worried about their future, and some about finances.56 Discussion of these fears along with follow-up care has been recommended. Whether these fears become a problem generally reflects the underlying psychological health of the patient.57 After diagnosis, these fears decline with time.58
| COLORECTAL CANCER |
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Surveillance for Recurrence After Primary Treatment
Probably no area has generated more controversy than the value of intensive surveillance after surgery for colorectal cancer. The potential benefits of intensive surveillance may be realized in two ways: the monitoring may identify patients with resectable metastases (usually hepatic) or the early chemotherapy treatment of disseminated disease may confer a survival advantage. Although the evidence is not conclusive and more information from randomized controlled trials is pending, the weight of evidence favors some form of surveillance.
An early study59 using frequent carcino-embryonic antigen (CEA) measurements followed 400 patients and found 75 with recurrences that appeared curable by surgery. Of these, 22 were long-term survivors. A more recent study60 of patients entered into a large National Cancer Institute adjuvant therapy trial (Intergroup 0035) found a similar benefit for intensive testing. Patients were followed with frequent visits, liver panels, and chest x-rays. CEA levels and detailed imaging, such as computed tomography (CT), magnetic resonance imaging, and ultrasound, were optional. These studies led to 109 patients undergoing curative-intent surgery; 25 lived over five years without recurrence and were probably cured.
In addition to these retrospective studies, several randomized controlled trials have also been conducted that compare intensive follow-up with less intensive follow-up. Five of these studies61–65 that met the criteria for inclusion have been incorporated into a recently published meta-analysis.66 All these studies used different surveillance strategies. Nevertheless, when the results for the 1,342 participants were combined, those who underwent intensive surveillance had an absolute survival advantage of seven percent (37% versus 30% five-year survival). This translated into a relative survival benefit of 21 percent.
These conclusions were strengthened when the results of the Danish study,65 which avoided CT scans and CEA measurements, were excluded. The remaining four studies yielded an improvement in absolute five-year survival of 9 to 13 percent or a relative 27 percent increase. The four studies all used CT scans of the liver, CEA measurements, chest x-rays, and endoscopies. Most of the studies were done every three months except CT scans, which were done at intervals of 6 to 12 months. The intensity of the follow-up decreased after two years. The major benefit appeared to be the early detection of liver and lung metastases. No benefit accrued from frequent endoscopies.
It seems reasonable that follow-up CEA may be performed in patients who would be suitable candidates for surgery of isolated recurrences.67 The performance of routine CT scanning is still controversial. These recommendations must still be viewed as preliminary, since other randomized controlled studies are in progress. Also, the value of newer techniques, such as positron emission tomography (PET) scans, in assessing (for example) an elevated CEA may lead to the discovery of even more curable recurrences.
Assessing Genetic Susceptibility
Hereditary nonpolyposis colon cancer (HNPCC) is the major genetic disorder associated with colorectal cancer. Its prevalence among colorectal cancer patients has been estimated as anywhere between 0.5 percent and 13 percent, depending on the criteria used.68 The usual estimate is around five to ten percent.69 The major criteria for its diagnosis are the Amsterdam criteria.68 These include: (1) at least three relatives with HNPCC-associated cancer (see below); (2) one affected relative should be a first-degree relative of the other two; (3) at least two successive generations should be affected; (4) colon cancer should be diagnosed in one relative under 50 years of age; (5) familial adenomatous polyposis (FAP) should be excluded. Patients with HNPCC who develop colon cancer may be treated with a total colectomy70 or a limited resection.71 These patients should undergo intensive surveillance with colonoscopy every one to three years.
The other major, inherited colorectal cancer syndrome is FAP. This genetic disorder is much less common than HNPCC.69 This disease, resulting in multiple polyps throughout the colon, is usually managed by some form of prophylactic proctocolectomy.72 In some patients with a low-polyp burden in the rectum, the rectum is retained, in which case, frequent proctoscopy is indicated. For these patients, consideration can be given to the use of a cyclo-oxygenase-2 (COX-2) inhibitor to suppress polyp growth.73,74 Patients with this disorder are also at risk for adenomas of the upper GI tract,75 and routine upper-GI endoscopy is indicated. The frequency of these examinations depends on the number of adenomas found and whether dysplasia is present.
Genetic testing for the APC gene in familial polyposis and mismatch repair genes in HNPCC is available, and patients with colorectal cancer in the setting of these syndromes should undergo genetic counseling to discuss genetic testing.76 The demonstration of a mutated gene can then be used to screen the remainder of the family and identify those members who need intensive monitoring.
Diagnosing a Second Primary
Since people with one colorectal cancer are at risk for a second, they should undergo regular colonoscopy. The cumulative incidence of new cancers is about 1.5 percent at five years.77 This is higher than in the general population. Although no studies have shown improved survival because of frequent endoscopies, it would seem prudent to examine the entire colon within one to two years after surgery, and then, if that is negative, on a less frequent schedule perhaps every three to five years.
The risk of other second primary cancers in patients who have had sporadic colorectal cancer is not higher than in an age-matched population. Because the adjuvant chemo-therapy used is fluorouracil based, hematologic malignancies would not be expected. Irinotecan has been proposed as a potential adjuvant drug; it has not yet been shown to cause secondary malignancies.
HNPCC is associated with other primary cancers.78 Endometrial cancer is the second most common cancer found in HNPCC carriers. Its risk has been estimated at 30 to 40 percent by age 70.79 Stomach and ovarian cancer are next in frequency, followed by several other cancers.80 Both the endometrial and ovarian cancers associated with HNPCC appear 15 to 20 years earlier than do the sporadic ones. Some authors have re-commended intensive surveillance for endometrial cancer and ovarian cancer in affected females.68
Upper GI adenocarcinomas are a major cause of death in patients with FAP who have had prophylactic colectomy.72 As stated above, periodic upper tract endoscopies are therefore indicated. In patients who have been treated with prophylactic colectomy but still have their rectum, monitoring for the development of a second cancer must be rigorous.81
Monitoring and Treating Complications of Treatment
The major long-term problems after colorectal cancer treatment stem from surgery and radiation therapy for rectal cancer. Complications arising from radiation therapy are mainly related to bowel function and occur 6 to 18 months after treatment.82 The main symptom is persistent diarrhea that is due to radiation damage to the bowel. Severe radiation proctitis may result in episodic bleeding. Another cause of diarrhea may be small bowel enteritis.83 Small bowel obstruction caused by adhesions can also occur. Sometimes the only treatment for these complications is surgical resection and re-anastomosis.
Dealing With Altered Physiologic Status
The two main problems of altered physiologic status result from damage to or removal of the rectum and the sequelae of pelvic irradiation. The care of a permanent colostomy requires special training for the patient; consultation and follow-up with an enterostomal therapist will assist the patient in adapting to his or her new condition. Maintaining hygiene, the use of appliances, skin protection, irrigation, and sexual activity are just some of the issues that need to be addressed.
Damage to the rectum in rectum-sparing surgeries can lead to anal incontinence in some patients.84 It is not clear whether radiation contributes to this problem. A study from the Mayo Clinic found an increase in rectal incontinence and diarrhea after radiation therapy for rectal carcinoma.85 But this may have been caused in part by radiation enteritis, since others have found no change in anal sphincter function after radiation therapy.86 Treatment is primarily symptomatic with antidiarrheal drugs.
Sexual and urinary function may be affected by rectal surgery. In general, urinary function can be preserved by nerve-sparing surgery. Sexual function may be lost, particularly in older men.87 Sexual function is also affected by radiation therapy. In the more carefully studied prostate cancer, sexual function is often diminished after radiation therapy (see below). Treatment with sildenafil may help some men achieve erections.88
Psychosocial Problems of Colorectal Cancer Survivors
Psychological problems are not prominent after treatment of colorectal cancer. A study from Sweden reported that the overall levels of anxiety and depression were low in cured patients.89 The one exception may be people who had treatment for rectal cancer that included radiotherapy.90 They seemed to have some decrease in functioning and independence caused mostly by their sub-optimal rectal function; sexual dysfunction may also play a role.91 The presence of a colostomy will also contribute to decreased functioning.
Routine follow-up care has little influence on quality of life. A Danish study found little psychological benefit from frequent follow-up.92 On the other hand, patients do report a strong preference to be followed closely and have few psychological qualms about surveillance.93 One issue that seems to stress patients and cause anxiety is genetic testing. Patients undergoing testing are often anxious before receiving their results. They also experience anxiety if they are mutation positive, but this decreases with time.94
| PROSTATE CANCER |
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Surveillance After Primary Treatment
Prostate specific antigen (PSA) testing has simplified surveillance of men after primary treatment for prostate cancer. A rising PSA level from the nadir reached after primary radiation therapy or any detectable PSA after radical prostatectomy (RP) is evidence of recurrence.95 Survival after biochemical failure (rising PSA) may be quite lengthy. A study from Cleveland of 936 men treated with radiation therapy found that the 10-year survival of those with rising PSAs was no worse than those with stable PSAs.96 Similar results were reported in a study of 1,844 men.97 Recurrences may be local or disseminated, and based on the particular scenario, further radiation, surgery, hormonal therapy, or even watchful waiting may be indicated.98
It is probably prudent to take serial PSA measurements every six months along with annual digital rectal exams as recommended by the NCCN.99 The American Urological Association recommends periodic PSA measurements without specifying their frequency.100 Other routine imaging studies, such as bone scans, are not recommended unless the PSA level rises.
Assessing Genetic Susceptibility
Prostate cancer can be inherited. It is more likely to be familial in men diagnosed under age 55; up to nine percent of all prostate cancer can be considered "hereditary."101 Most hereditary cases appear to be transmitted as autosomal dominant genes found on chromosome 1.102 Another locus on the X chromosome has been described.103 Without genomic analysis, the best clue to hereditary prostate cancer is the family history as defined by: (1) at least three first-degree relatives have the disease; (2) two of these were under 55 at diagnosis, or men in at least three successive generations have had prostate cancer.104 Suspecting familial prostate cancer should lead to early screening of male family members, i.e., aged 40, because these men tend to present at a more advanced stage.105 Sons of men who have prostate cancer have a higher risk themselves even if there is no indication of familial prostate cancer.106
Diagnosing a Second Primary
An increased incidence of bladder cancer may be found in patients with prostate cancer; this may be falsely elevated because these patients have such intense evaluation of their pelvic organs.107 A study of Detroit-area patients found that this excess of bladder malignancies occurred in men treated with radiation therapy for their prostate cancer.108 Other cancers were not found to occur at an excessive rate. A large Swedish study109 and a large Swiss study110 both found significantly reduced incidence of other cancers in prostate cancer patients that ranged from relative risks of 0.6 to 0.8.
Monitoring and Treating Complications of Treatment
Probably no frequently used cancer therapy leads to as many complications as do surgical and radiation treatments of prostate cancer. The major complications of surgical prostatectomy are impotence and incontinence. Rates of these sequelae vary depending on the age of the patient, the size of the cancer, the skill of the surgeon, and whether a nerve-sparing procedure was done. It must be acknowledged that since prostate cancer patients are a relatively elderly population (median age at diagnosis = 69), some of these problems may have preceded the treatment. For external radiation therapy, bowel problems are added to the major complications and urinary difficulties subtracted. Their frequency will vary depending on the dose and means of delivery.
A study from the Prostate Cancer Outcomes Study111 sheds considerable light on the dimensions of the problem. The study surveyed 1,334 patients two years after treatment. By this time, the long-term effects of radiation should have become apparent, and the short-term effects of surgery had resolved. Almost 30 percent of radical prostatectomy (RP) patients wore pads to keep dry. Close to 10 percent of all RP patients were totally or almost totally incontinent. Men who received external beam radiation therapy had a very low incidence of wearing pads (2.6%) and of major incontinence (3.5%). With regard to sexual function, almost 80 percent of the RP patients were unable to have an erection sufficient for intercourse compared with 61 percent of radiation-treated patients. Although around 10 percent of both groups had pain with their bowel movements, 37 percent of the radiation patients complained of diarrhea compared with 21 percent of RP patients.
Brachytherapy is associated with similar side effects, but the pattern of side effects more resembles those of surgery, with a high rate of urinary and sexual dysfunction but few bowel symptoms.112
Dealing With Altered Physiologic Status
Because all of the major side effects of prostate cancer treatment can be considered alterations in physiology, they will be discussed here. Unfortunately, many of the side effects are not treatable. Transurethral collagen injections, which have had some success in treating stress incontinence in women, have had limited success in men after RP.113 Most incontinent men are committed to wetness for life. Little treatment is available for radiation proctitis, although one group has reported success with topical sucralfate suspensions.114 The one bright spot is treatment for impotence. Treatment with sildenafil can help men who have become impotent after radiation therapy to the prostate.115 Men who have become impotent after RP may also respond to sildenafil, but also will often become potent with other treatments, such as vacuum devices, intra-corporeal injections, or both.116
Psychosocial Problems of Prostate Cancer Survivors
Most studies of quality of life after treatment for prostate cancer have focused on urologic symptoms but not on psychosocial ones. Yet psychosocial disturbances must occur in men who might very well be experiencing incontinence, impotence, or rectal problems. These, however, have not come to light in the numerous quality-of-life studies of post-therapy men. One major study found that 81 percent of men treated with RP and 90 percent of men treated with radiotherapy "were either delighted, satisfied, or pleased with their treatment decision."111 But men do experience psychosocial difficulties and perceive they are not receiving adequate help.117 One source of support has been support groups.118 These may be quite helpful.119 Finally, partners of the men may also suffer psychological distress, which may be greater than that of the patients.120
| TESTES CANCER |
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Surveillance After Primary Treatment
Most patients with testicular cancer are cared for by specialists during the period of early surveillance because most recurrences occur early,122 and the disease is still curable with aggressive, prompt therapy. Eventually these men will leave their specialist and receive care from a primary care physician. At this point, surveillance with serum tumor markers, human chorionic gonadotropin, and alpha-fetoprotein would be recommended on an annual basis along with chest x-ray and physical examination.123 The latter is directed to palpation for abdominal lymph node enlargement and examination of the remaining testicle. It is important to note that recurrences have been found 10 years or more after the original treatment.124
Assessing Genetic Susceptibility
Testicular cancer does cluster in some families; one study suggested that it was carried as a recessive gene on the Y chromosome.125 No specific gene has been identified. The major importance of finding a familial occurrence aside from counseling male family members is that the patients have a higher risk of second testicular cancers as well as other cancers.126
Diagnosing a Second Primary
Second cancers occur more commonly in testicular cancer survivors than in the normal population. The risk has been estimated as 40127 to 60128 percent higher than expected. Leukemias are increased in patients who received either radiation or chemotherapy. Solid tumors are also increased. Patients who receive radiotherapy are at particular risk of GI cancers, particularly stomach cancer. Finally, these patients have a significant risk (1% to 5%) of developing a second testicular cancer.
Monitoring and Treating Complications of Treatment
The major complication of testicular cancer treatment is infertility. In the past, patients undergoing retroperitoneal lymph node dissection suffered from retrograde ejaculation. Now with nerve-sparing surgery, this is uncommon.129 Chemotherapy can lead to oligospermia in some patients along with poor sperm motility.130 It is important to note that patients often have oligospermia or azoospermia before surgery.131 Patients often recover fertility.132
Dealing With Altered Physiologic Status
Perhaps the only physiologic problems are related to chemotherapy, namely pulmonary damage from bleomycin and neuropathy from the cisplatin. These should mostly resolve and not interfere with normal function.
Psychosocial Problems of Survivors
Psychosocial problems do not occur much more often than in a normal population.133 The major problems reported are decreased sexual enjoyment and desire.
| HODGKIN DISEASE |
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Surveillance After Primary Treatment
The NCCN134 recommends intensive follow-up of up to five years after treatment, preferably by an oncologist. But some form of later surveillance will still be important as late relapses as well as second primaries do occur. Most relapses in patients with Hodgkin disease will occur within the first five years, but may continue to occur up to 10 years after treatment.135 It would be reasonable to assess the primary disease sites in these individuals with imaging techniques, such as CT scans or PET scans, annually or earlier if there are signs or symptoms of recurrence.
Assessing Genetic Susceptibility
Hodgkin disease has not been tied to any specific genetic disorder. But it can be found clustered in families,136 and there is also a high concordance of Hodgkin disease in young adults who are identical twins.137 Some of this may relate to specific human leucocyte antigen (HLA) determinants.138
Diagnosing a Second Primary
Probably no other malignancy is associated with as many second primary cancers in survivors as is Hodgkin disease. Most of these tumors are probably related to the carcinogenic effects of the radiation and chemotherapy the patients receive. Various risk ratios are cited depending on type of treatment, length of follow-up, and age at diagnosis. Patients that are younger at diagnosis have higher relative risks although absolute risks are higher in patients diagnosed as adults.139 Interestingly, the type of second primary tumor is related to the age of treatment: solid tumors such as lung, breast, and GI malignancies occur more frequently after treatment at a younger age compared with leukemia, which is more frequent in patients treated at an older age. For those who were treated when they were younger than 15, the relative risk of a second malignancy is 26 times that in a healthy individual. This drops to 1.9 for those treated when they are over 55.
The major types of malignancy seen are leukemia, non-Hodgkin lymphoma, lung cancer, breast cancer, and GI malignancies.140 Acute nonlymphocytic leukemia is a major risk in patients treated by chemotherapy, especially by those regimens containing alkylating agents.141 The rate following the use of the ABVD (doxorubicin, bleomycin, vinblastine, dacarbazine) regimen is much lower,142 and this has now become the regimen of choice in most centers. If leukemia develops, it will arise early after treatment with its peak occurrence being in the first and second decades after treatment. Non-Hodgkin lymphoma is another high-risk hematologic cancer for Hodgkin disease survivors. The majority of these lesions have diffuse, intermediate-grade histology.143 The cause of these secondary lymphomas is unknown and may occur as a result of the therapy, immunosuppression, or as a natural sequel.
Hodgkin disease survivors may also develop solid tumor second primaries. The risk of breast cancer in women treated with mantle irradiation before the age of 30 is markedly increased.144 Most of these cancers will occur at the edge of the radiation field. Increased lung cancer risk is found in patients treated with radiation and chemotherapy with alkylating agents. It increases markedly in smokers.145 Other major cancer sites that are affected are GI and female genital,146 probably in association with multimodality therapy. Many other, less common cancers, such as sarcomas and thyroid carcinomas, are also found. Surveillance should consist of annual physical examinations, including pelvic exams and screening mammography for all women treated at a young age (less than 30). Many centers recommend starting the mammography screening around eight years following treatment. Thus, many women will start their breast surveillance at a much earlier age than the general population. Although not proven as a screening technique, yearly chest x-rays would be prudent. Any smokers should be intensively urged to stop, and be given pharmacological and psychological help.
Monitoring and Treating Complications of Treatment
The effects of chemotherapy and radiotherapy are problematic. Both doxorubicin and radiation that involves the heart can damage heart muscle; heart failure is always a concern. Also, cardiac radiation can lead to coronary artery disease and subsequent myocardial infarction.147 Pericardial disease secondary to radiation is becoming less of a problem with newer techniques.148 Lung function can also be disturbed either as a result of treatment with bleomycin or radiation. Usually the disturbance in function is mild.149 Hypothyroidism is a common complication of neck radiation.150 Often it is subclinical and can only be discovered by tests of thyroid function. Other complications are neurotoxicities that arise from chemotherapy drugs, such as vinca alkaloids and platinum compounds. These usually take the form of slowly resolving peripheral neuropathies.
Dealing With Altered Physiologic Status
Other than what is described above, the major issue that many survivors face is fatigue. This has been described particularly for Hodgkin disease survivors.151 This may result, according to some, from decreased pulmonary function.152 Sexual dysfunction has also been reported.153 Unfortunately, there have been no reports of systemic evaluation and treatment of these symptoms. Problems with fertility may occur, although in one series, 35 of 43 women and 25 of 51 men were able to conceive.154 For patients who do conceive, the health of their offspring is not affected.155
Psychosocial Problems of Survivors
Representatives of the Cancer and Acute Leukemia Group B performed a large study of Hodgkin disease and acute leukemia survivors.156 Both groups had vocational problems and serious marital problems. Fifty-six percent of the Hodgkin disease survivors were divorced or separated—many presumably because of their cancer. Sexual problems manifested by decreased interest, problems with erections for men, and painful intercourse for women along with poor self-image occurred in these individuals. Finally, 21 percent of Hodgkin disease survivors had high levels of psychological distress. These findings highlight the need for psychological therapy for these people.
| LEUKEMIAS AND NON-HODGKIN LYMPHOMAS |
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Surveillance After Primary Treatment
There are no studies that assess the value of intensive surveillance versus routine observation for any of these diseases. Many of these patients will have ongoing problems and be under the care of their oncologists or hematologists. Only some with non-Hodgkin lymphoma, and an even smaller number with cured leukemia, will no longer be under a specialists care.
The recurrence pattern seen after treatment of intermediate- and high-grade non-Hodgkin lymphomas157 resembles that of Hodgkin disease. Most recurrences are discovered within five years of treatment. It would be reasonable to assess the primary disease sites in these individuals for at least five years after treatment with imaging techniques such as CT scans or PET scans annually, or earlier if there are signs or symptoms of recurrence.
Most acute leukemia patients that relapse will do so in the first five years.158,159 For leukemia survivors, routine blood counts would be warranted at intervals of every three to six months.
Assessing Genetic Susceptibility
Although genetic abnormalities such as Down syndrome, Fanconi anemia, and others are associated with acute leukemias, these are not typically a problem in adults. Likewise non-Hodgkin lymphomas have not been tied to any specific genetic disorder although it can be found clustered in families.160 Although it is wise to seek a familial connection in any patient with these diseases, the great majority of patients will have no recognizable genetic susceptibility.
Diagnosing a Second Primary
Although second primaries do occur at a higher than expected frequency after treatment of non-Hodgkin lymphoma, they are not as common as they are in Hodgkin disease. Large studies from Australia,161 and from Sweden, Ontario, and Iowa162 reported a 19 to 37 per-cent increase, respectively, in the incidence of second cancers. Both studies found specific increases in melanomas and bladder cancer. Other cancers that were increased in one or the other study were kidney, lung, brain, lip and tongue, thyroid, and soft tissue sarcomas. Hodgkin disease and acute leukemia were also increased in incidence in the non-Australian study. The bladder and kidney cancers are thought to result from cyclophosphamide therapy.163 No specific recommendations can be made for surveillance other than careful evaluation of any symptoms referable to these sites.
Except for the special case of stem cell transplantation, which is discussed below, second primaries do not appear to occur at an increased frequency after treatment of acute leukemia.
Monitoring and Treating Complications of Treatment and Altered Physiologic Status
Those who have received multiple blood transfusions may develop chronic hepatitis B or C transmitted by blood products. This is becoming less prevalent as the safety of the blood supply increases. The risk of hepatitis B is one in 220,000 and that of hepatitis C, one in 1,600,000.164 The two most common long-term complications of therapy for non-Hodgkin lymphoma are cardiotoxicity secon-dary to doxorubicin therapy and hepatitis C virus infection related to transfusions.165 Although much has been written about the cardiac, cognitive, CNS, and other sequelae in children who are cured of their leukemia, the literature on long-term effects of therapy in adults refers mostly to stem cell therapy.
Allogeneic stem cell transplantation causes major changes in physiologic status because of graft versus host disease. Since these patients are still under the active care of their specialized oncology team, the clinician involved in routine follow-up of survivors will not be responsible for managing this complex problem. Patients who have undergone autologous stem cell transplants have problems that are similar to people who have received standard chemotherapy. They may have significant fatigue, and sleep disturbances are common.166
Psychosocial Problems of Survivors
Representatives of the Cancer and Acute Leukemia Group B performed a large study of Hodgkin disease and acute leukemia survivors.167 Both groups had vocational problems and serious marital problems. Thirty-three percent of the leukemia survivors were divorced or separated because of their cancer. Sexual problems manifested by decreased interest, problems with erections for men, and painful intercourse for women along with poor self-image occurred in both groups. Finally, 14 percent of leukemia survivors had high levels of psychological distress. These findings highlight the need for psychological therapy for many of the survivors.
| LUNG CANCER |
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Surveillance After Primary Treatment
Most patients are not treated with curative intent. Only 40 percent of 1,398 patients with non-small cell lung cancer in a series from Walter Reed Army Medical Center underwent curative surgery, and of these, only 58 percent survived five years.168 For those who are treated curatively, there is no standard guideline for follow-up. A study from Brazil compared strict surveillance with frequent physical examinations, chest x-rays, and biannual CT scans with a less intensive approach that saw patients only if they had symptoms.169 Mortality was the same in both groups, but the authors thought some close follow-up, perhaps without CT scans, was justified because it alerted physicians to imminent health problems.
Assessing Genetic Susceptibility
Lung cancer can be inherited.170 Smoking is a necessary cofactor, but in families where young (under 55) individuals have developed the disease, a family trend consistent with dominant inheritance has been described.171 In assessing a family where first-degree relatives develop lung cancer at an early age, a physician must redouble efforts to discourage smoking.
Diagnosing a Second Primary
The most common second cancer in patients with lung cancer is another lung cancer. The risk is around one to two percent annually in patients with non-small cell lung cancer and at least double that rate in those with small cell lung cancer.172 Surgical resection may be warranted and can be successful if a second primary does develop.173 Finally, other smoking-related cancers,174 particularly aero-digestive cancers,175 can occur.
Monitoring and Treating Complications of Treatment
In non-small cell lung cancer survivors for whom surgery appears to be the major curative treatment, pulmonary insufficiency might result from the surgery, since many patients have smoking-related comorbidity. Radiation therapy may contribute to pulmonary complications, particularly by damaging remaining lung tissue. The major complications of treatment of small cell lung cancer relate to chemotherapy. Since platinum drugs are often used, neuropathies and diminished renal function can occur. In addition, cognitive functioning may decline in patients treated for small cell lung cancer.176 Although a decline in cognitive function might be due to prophylactic cranial irradiation, this is not certain;177 it can occur in patients not receiving cranial radiation.
Dealing With Altered Physiologic Status
The major physiologic problem for lung cancer survivors is reduced pulmonary function due to surgery, chronic obstructive pulmonary disease, and any radiation they may have received. Also, as mentioned above, some with small cell lung cancer may have reduced cognitive functioning.
Psychosocial Problems of Survivors
Depression is not a major problem of survivors after surgery. A study from Japan178 found an incidence of only around six percent. Psychological distress was frequent however and may be associated with reduced pulmonary function. It appeared that a positive relationship with their physician helped many patients.
| GYNECOLOGIC CANCERS: CERVIX, ENDOMETRIUM, AND OVARY |
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Surveillance After Primary Treatment
There are few data supporting intensive surveillance of any of these cancers. The practice recommended by the NCCN179 for follow-up of women treated for ovarian cancer is frequent physical examinations—every two to four months—along with measurements of serum levels of CA-125. After two years, less intense follow-up is recommended. A recent study found pelvic MRI to be more sensitive180 in detecting early recurrence, but the value of this is unclear. At one time, second-look surgery was done in patients thought to be free of disease. But even when cancer was found and treated in presumably an early stage of recurrence, survival was not improved.181 A National Institutes of Health consensus conference182 recommended a follow-up schedule similar to that of NCCN, with physical examination every three to four months along with CA-125 for two years, and then less frequently.
For cervical cancer, the NCCN recom-mends Pap tests and pelvic examinations every three months for the first year, with decreasing frequency in subsequent years.183 Once again, the survival value of this is not proven. In one study, most recurrences, usually detected in the first two years after treatment, were symptomatic.184 Other studies have confirmed this.185 When the recurrence was found by active surveillance, survival was not improved.186
Most literature on surveillance in gyneco-logic malignancies has been devoted to endometrial cancer. The NCCN recommends physical examination every three to six months and vaginal cytology every six months for two years and then less often.186a A more complex schedule from the MD Anderson Cancer Center also added CA-125.187 Although most recurrences were detected by this testing approach, it did not translate into improved survival. Most of the recurrences were found within three years after surgery. Other studies have confirmed the findings that intensive surveillance confers no survival benefit.188,189
In summary, intensive surveillance does not appear to improve survival. But that is not to say that early detection might not be valuable to a patient because it might lead to early treatment of symptoms of advanced disease. Although routine surveillance would seem to be reasonable, it need not be intensive.
Assessing Genetic Susceptibility
About 10 percent of ovarian cancers are familial and due to inheritance of an autosomal genetic mutation.190 Approximately two-thirds of these are due to BRCA mutations, and the other third due to the HNPCC mutation. In patients with a strong family history of breast, ovarian, or colorectal cancer, genetic counseling would be appropriate.
A familial pattern of endometrial cancer has been documented, and one estimate is that about five percent of endometrial cancers are familial.191 Most of these are probably related to HNPCC,192 but other unknown mutations cannot be excluded. Cervical cancer has not been attributed to any hereditable factors.
Diagnosing a Second Primary
The major causes of second primaries in patients with these gynecological cancers are genetic mutations. Because endometrial cancer and ovarian cancer are associated with HNPCC, colorectal cancers as well as the other cancers described earlier in this article can occur in patients with this mutation. Women with a BRCA mutation will be at high risk for developing breast cancer.
Therapy-induced second primary tumors may also be seen. Secondary leukemia has been seen following chemotherapy for ovarian cancer.193 Secondary tumors of the rectum, vulva, and vagina have been described following radiation therapy for cervical cancer.194 In addition, cervical cancer is associated with the risk factors of HPV infection and smoking; these may lead to other cancers, such as anal195,196 vaginal, and vulvar cancers.197
Monitoring and Treating Complications of Treatment
The major complications of treatment stem from the pelvic radiation used to treat endometrial and cervical cancers. The main problems patients experience are diarrhea and some lower back pain as a result of the radiation.198 Survivors may also develop urinary frequency because of radiation-induced changes in the bladder. In general, the health-related quality of life of patients with endometrial cancer treated with radiation is not significantly lower than a matched population of healthy women except in the first two years after treatment because of the symptoms described above.199
Cervical cancer patients face an additional burden if they have been treated with radiation. The radiation causes vaginal stenosis and can lead to significant sexual dysfunction if this is not prevented at the time of radiotherapy. In addition, women may experience decreased libido and less satisfaction with sex.200
Long-term effects of ovarian cancer treatment, other than those caused by surgery, would result from the chemotherapy. Cisplatin can cause peripheral neuropathy, hearing loss, and renal insufficiency. Neuropathy may be exacerbated by concomitant use of taxanes. Some of these sequelae may eventually resolve.
Dealing With Altered Physiologic Status
Lack of ovaries or uterus should not result in major functional alterations except for early menopause in young ovarian cancer patients. There is no documented reason that meno-pausal symptoms cannot be treated with hormone replacement therapy (HRT) except in women with a genetic susceptibility to breast cancer. But a recent review has pointed out that the safety of HRT in these cancer survivors has not been proven.201
Psychosocial Problems of Survivors
Women treated with radiotherapy for carcinoma of the cervix experience mild, persistent, psychosocial problems, and their quality of life never equals that of healthy women.202 But their main problems seem to be worry about their disease and difficulty in sharing their problems with others. Other than the side effects of the treatment, they return to normal functioning. Patients with endometrial cancer react similarly.203
Ovarian cancer survivors report their emotional well-being as good to excellent.204 Their major problems relate to their fear of cancer recurrence. Otherwise, they cope well except for menopausal symptoms.
| GENITOURINARY CANCERS: BLADDER AND KIDNEY |
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Surveillance After Primary Treatment
No specific guidelines for surveillance after treatment of renal cell cancer have been published. One recommendation that has been proposed for renal cell carcinoma is that if there is to be intensive surveillance, it should be in those patients with larger (> 5 cm) tumors or those with aneuploid tumors.205 A specific recommendation has been that early (T1) tumors be followed with annual chest x-rays and liver function tests. For more advanced stages, the recommendations are that these tests be done every three to six months for three years, and then annually along with abdominal and pelvic CT scans at 24 and 60 months.206 The reason for this active surveillance is the impression that surgical removal of isolated recurrences, particularly pulmonary, may be curative for a few patients.207,208 No randomized controlled trials have been performed to test this hypothesis.
Because patients with locally treated bladder cancer have a high risk of recurrence, they need follow-up surveillance by urologists. Frequent cystoscopy is needed.209 Addition of urine cytology to this follow-up regimen is useful in detecting carcinoma in situ and high-grade urothelial carcinomas.209 It may be more likely that nonurologists will be primarily responsible for the surveillance of patients treated with total cystectomy. In one study, 74 percent of metastases were detected in asymptomatic patients by surveillance.210 Most were pulmonary. The authors of the study recommend that surveillance be adjusted to the stage of the cancer, with annual chest x-rays and examinations for Stage T1 cancers, biannual exams for T2 cancers, and more frequent exams along with biannual pelvic CT scans for T3 cancers. Although there are no major studies reporting improved survival with this approach, one report did cite better palliation for pelvic recurrence because of early detection.211
Assessing Genetic Susceptibility
Most renal and bladder cancers are sporadic. Familial occurrence of bladder cancer has been described but is uncommon.212 In general, first-degree relatives of patients, particularly younger ones, with bladder cancer have a 50 percent higher risk for the disease. This mostly occurs in people exposed to risk factors, such as smoking or industrial chemicals.
On the other hand, there is a distinct clinical syndrome, von Hippel-Lindau disease, which is associated with familial renal cell carcinoma. This disease, caused by a mutation on chromosome 3, is associated with multiple benign and malignant tumors, including renal cell carcinoma.213 These cancers generally have a good prognosis. Other tumors in this syndrome are central nervous system hemangioblastomas, pheochromocytomas, and pancreatic cysts. Another familial aggregation occurs with papillary cell carcinomas of the kidney. These also have a relatively good prognosis.214
Diagnosing a Second Primary
Other than other tumors in the von Hippel-Lindau syndrome, second primaries are not reported to be increased in these cancers.
Monitoring and Treating Complications of Treatment
Quality of life is normal in patients with renal cell cancers, and there are no associated long-term complications.215 Bladder cancer patients after radical cystectomy do experience long-term complications. Both men and women experience sexual dysfunction char-acterized by loss of interest, inability to have orgasm, and in men, impotence.216
Dealing With Altered Physiologic Status
A major problem for bladder cancer patients is significant urinary leakage, particularly if they have had an ileal conduit (around 50217 to 60218 percent). The rate is much lower with orthotopic bladder replacements.
Psychosocial Problems of Survivors
Most renal cancer patients do not experience major problems. But patients who did not have radical nephrectomy, but rather had nephron-sparing surgery (partial nephrectomy), seem to be less anxious about their cancer and its chance of recurrence.215 Patients who have had cystectomy for bladder cancer also report few emotional problems.216 But some do have limitations in their ability to engage in social activities because of urine leakage. This is less of a problem in patients with orthotopic bladders. Dissatisfaction with sexual functioning is helped by inflatable implant prostheses.
| A SPECIAL COMMENT: SECOND PRIMARY TUMORS AFTER BONE MARROW TRANSPLANT |
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| CONCLUSIONS |
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| Footnotes |
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| REFERENCES |
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