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1.
AIMS: As a consequence of recent advances in heart transplantation, upper age limits for the procedure have been liberalized in many centres. It was the purpose of this study to compare post-transplant mortality, morbidity and quality of life in a consecutive series of 72 patients > 54 years (mean age, 57.6 +/- 2.7 years) with a control group of 72 adult patients < or = 54 years (mean age, 42.4 +/- 9.5 years) transplanted at one centre between 1985 and 1991. METHODS AND RESULTS: Patients were followed for 41 +/- 27 months post-transplant. Actuarial 1-, 5- and 7-year survival rates were 78 +/- 5%, vs 81 +/- 5%, 52 +/- 7% vs 66 +/- 6% and 46 +/- 8% vs 63 +/- 6% in patients > 54 years and < or = 54 years, respectively (P = ns). Causes of death were not significantly different between the groups. Patients > 54 years experienced significantly fewer rejection episodes after the 6th month post-transplant (0.5 +/- 0.9 vs 0.9 +/- 1.0, P < 0.04), and incidence and treatment of rejection episodes as well as incidence of infection was comparable between the groups. Non-lymphoid malignancies, mainly skin cancer, occurred more often in the older age group (27% vs 13%, P < 0.05). Quality of life, as assessed by the Nottingham Health Profile, was better in 5/6 dimensions of social functioning in older patients and the difference reached statistical significance for the dimensions of emotional reactions (P = 0.005) and sleep (P = 0.0005). CONCLUSION: In conclusion, carefully selected patients > 54 years can undergo heart transplantation with mortality and morbidity comparable to younger patients. Quality of life post-transplant seems even to be slightly better in the older age group.  相似文献   

2.
OBJECTIVE: The authors reviewed renal transplant outcomes in recipients 60 years of age or older. BACKGROUND: Before cyclosporine, patients older than 45 years of age were considered to be at high risk for transplantation. With cyclosporine, the age limits for transplantation have expanded. METHODS: The authors compared patient and graft survival, hospital stay, the incidence of rejection and rehospitalization, and the cause of graft loss for primary kidney recipients 60 years of age or older versus those 18 to 59 years of age. For those patients > or = 60 years transplanted since 1985, the authors analyzed pretransplant extrarenal disease and its impact on post-transplant outcome. In addition, all surviving recipients > or = 60 years completed a medical outcome survey (SF-36). RESULTS: Patient and graft survival for those > or = 60 years of age versus those 18 to 59 years of age were similar 3 years after transplant. Subsequently, mortality increased for the older recipients. Death-censored graft survival was identical in the two groups. There were no differences in the cause of graft loss. Those 60 years of age or older had a longer initial hospitalization, but had fewer rejection episodes and fewer rehospitalizations. Quality of life for recipients 60 years of age or older was similar to the age-matched U.S. population. CONCLUSION: Renal transplantation is successful for recipients 60 years of age or older. Most of them had extrarenal disease at the time of transplantation; however, extrarenal disease was not an important predictor of outcome and should not be used as an exclusion criterion. Post-transplant quality of life is excellent.  相似文献   

3.
OBJECTIVE: Donors age 50 years was an exclusion criteria in past decades. The increase of patients in the waiting list has determined the acceptance of older donors (over 65 years old). We analyze our results in liver transplantation using donors over 65 years. PATIENTS: From 1986 to may 1994, we performed 381 OLT. In five cases (1.3%) the OLT was performed using donors over 65 years of age (66, 67, 68, 70 and 71). The selection criteria for donors and recipients were similar to the other transplanted patients. Immunosuppression included cyclosporine or FK-506, prednisone and azathioprine. RESULTS: There were no primary graft failures and preservation damage, biochemical and clinical evolution were not different to the procedures using younger donors. Three grafts presented non-corticoresistant acute rejection. After a follow-up of 11.6 mo (range 4-37 mo) only one graft was lost (Kaposi's sarcoma in the liver). Four grafts and four patients are in excellent biochemical and clinical condition. CONCLUSIONS: Donor age should not be an exclusion criteria. Grafts from older donors (over 65 years old) may be considered safe and will permit to increase the number of OLT.  相似文献   

4.
BACKGROUND: Physical training currently constitutes an important part of treatment of heart failure patients. So far, no data are available on the effects of regular exercise in elderly (aged > 65 years) heart failure patients. METHODS: In a prospective trial, patients with chronic heart failure (New York Heart Association class II and III) were randomly assigned to a training group and a control group. Patients in the training group performed additional exercises three times a week, while patients in the control group continued regular treatment. To analyse the influence of age, both groups were subdivided into subjects younger than and older than 65 years. The effect of training on exercise parameters was evaluated by means of a treadmill test. Quality of life aspects were evaluated with the help of the Heart Patients Psychological Questionnaire and a single-question Self Awareness of General Well-Being test. RESULTS: Comparison of changes between groups revealed that training increased the duration of the exercise test and improved aspects of quality of life in the trained patients aged both younger than and older than 65 years. CONCLUSION: Exercise training is equally effective in patients aged younger than and older than 65 years.  相似文献   

5.
The United States end-stage renal disease (ESRD) population is growing progressively older. As a percentage of the overall ESRD population, the number of patients 65 years of age and older approached 40% by 1989. However, the percentage of ESRD patients with a functioning transplant was only 2.7% in this age group. Success of transplantation in geriatric ESRD patients over the last decade is due to improved patient selection as well as the use of cyclosporine A and lower doses of corticosteroids, with the achievement of 1-year patient and graft survival rates of 85% and 75%, respectively. For patients older than 60 or 65 years, the 5-year "functional" graft survival is 55% to 60%. Although overall results are excellent, the management of transplantation in the elderly requires an understanding of pharmacology, immunology, and physiology peculiar to this age group. Since the elderly have a degree of immune incompetence, they require less aggressive immunotherapy. Elderly patients have decreased hepatic enzyme activity, especially the P450 system, and therefore require a lower cyclosporine dose. Although elderly patients experience less rejection episodes than younger patients, graft loss in the elderly transplant recipient is due mainly to patient death. Most common causes of death in the elderly transplant recipient are cardiovascular disease and infection related to peaks of immunosuppression. Shortage of cadaver kidneys and limited life expectancy of the geriatric ESRD patient make allocation of cadaver kidneys to patients over 70 years (and even 65 years) a controversial issue and an ethical dilemma. Use of elderly cadaver donors (over 55 to 60 years) is associated with inferior success rates and is not an optimal solution to shortage of cadaver kidneys.  相似文献   

6.
7.
BACKGROUND: The clinical results of implantable cardioverter-defibrillator (ICD) implantation in the elderly have received limited documentation. As the longevity of the U.S. population has increased, so has the need for ICD implantation in the elderly. We evaluated the efficacy and outcome of ICD implantation in elderly patients (>70 years) compared with younger patients. METHODS: The case records of all consecutive patients who underwent ICD implantation at our institution between 1986 and 1994 were reviewed. Of a total of 238 patients, 78 patients were 70 years of age or older and 160 patients were younger than 70 years of age. RESULTS: The mean age of the younger group was 58 years and that of the elderly group was 74 years. There were no statistical differences in the presence of coronary artery disease, left ventricular systolic function, the inducibility of arrhythmias, or the history of sudden cardiac death. The hospital morbidity rate was similar in both groups (6.9% in the younger group and 7.7% in the elderly group; p = not significant). The operative mortality rate was 1.9% for the younger group and 1.3% for the elderly group (p = not significant). At a mean follow-up of 33 +/- 26 months, Kaplan-Meier survival curves demonstrated similar survival rates, with 93%, 82%, and 65% of the patients alive at 1, 3, and 6 years, respectively. CONCLUSIONS: Implantable cardioverter-defibrillator implantation was equally effective in the treatment of patients older than 70 years as in younger patients. No differences in theoretic survival or morbidity were observed.  相似文献   

8.
BACKGROUND: The risk for rejection is highest early, but graft rejection requiring intensified immunosuppression may be present even late after transplantation. Nonetheless, a considerable number of patients are absolutely free of rejection requiring intensified immunosuppression (Rej) late after transplantation. Therefore, we tried to identify patients who do not need endomyocardial biopsies > or = 2 years after transplantation and those who may benefit from long-term follow-up with routine endomyocardial biopsies. METHODS: A total of 112 patients (age 45+/-12 years) had a follow-up with regular endomyocardial biopsies of > or = 3 years. A total of 4194 endomyocardial biopsies were performed (1364 > or = 2 years after transplantation). They were divided into three categories: rejection score=0, Texas 0-2 or International Society for Heart and Lung Transplantation (ISHLT) 0 or 1A; rejection score=1, Texas 3-4 or ISHLT 1B or 2; rejection score=2, Texas > or = 5 or ISHLT > or = 3A. RESULTS: During the third and subsequent posttransplantation years, 31 of 112 (28%) patients had < or = 1 further Rej (total 51). Independent predictors identifying patients with Rej in multivariate analysis were age [odds ratio (OR)=0.96 per year, P<0.05], the sum of rejection score (OR=1.07 per score point, P<0.005) and the mean cyclosporine level in the first 2 years (OR=1.07 per % of upper therapeutic range, P<0.01). Fifty-eight (52%) patients with age >25 years, sum of rejection score < or = 17, and mean cyclosporine level <90th percentile during the first 2 years would not have needed biopsies in the third and subsequent years, whereas the other 48% had a risk of 54% to develop further Rej. In addition to predictors identifying patients with rejection, time after transplantation (OR=0.73 per year, P<0.005), cyclosporine level below therapeutic range (OR=2.15, P<0.05), and reduction of prednisone (OR=2.64, P<0.05) were independent predictors at each endomyocardial biopsy. CONCLUSIONS: Risk of Rej remained considerably high in approximately one third of our patients late after transplantation. In these, further surveillance biopsies appear justified, whereas half of the patients had no risk of Rej as long as immunosuppressive therapy was sufficient.  相似文献   

9.
OBJECTIVE: Although age-related mortality after intensive care unit (ICU) admission has been studied, functional recovery for different age groups following ICU admission is not well characterized. We hypothesized that compared with younger age groups, fewer patients older than age 65 admitted to an ICU would regain their full prehospitalization functional ability and that their recovery would be slower than that of younger patients. DESIGN: A prospective observational cohort study with convenience sampling. SETTING: Intensive care units of an urban university-affiliated Veterans Administration Medical Center. PARTICIPANTS: A total of 222 patients during the first 72 hours after entry to a medical or surgical ICU at the Denver Veteran's Administration Medical Center between September 1991 and July 1992. MEASUREMENTS: We collected baseline data on patient demographics and on the severity of acute illness using the Acute Physiology and Chronic Health Evaluation (APACHE II), Acute Physiology Score (APS), and functional status (highest level of physical activity level 1 month before admission). We recorded survival and patient-perceived global functional status at 6 weeks and 6 months after admission. Post-ICU function was adjusted for baseline function, age, APACHE II, and APS using multiple regression. RESULTS: Average patient age was 62+/-.74 years (mean +/- SEM). Fifty-two percent of the entire cohort returned to baseline function at 6 months. Although baseline function was better for younger people, there was no difference in recovery at 6 weeks in older compared with younger patients. Most functional recovery occurred by 6 weeks, with maintenance of this recovery at 6 months. Baseline function was the major determinant of both 6 week recovery (P < .001) and 6 month recovery (P = .002), whereas APACHE II was not (P = .3). Age predicted recovery significantly (P = .04) at 6 months but not at 6 weeks (P = .26). APACHE II (P < .001) and baseline function (P = .03) predicted mortality. CONCLUSIONS: Older people had worse functional ability at ICU admission, but the proportion of older people who recovered and their rate of recovery was the same as for younger people. Baseline functional status, rather than abnormal physiologic status (as measured by APACHE II) on admission, was the major determinant of recovery, whereas APACHE II was the main correlate of mortality. Together, baseline function and physiologic status provide valuable complementary information for clinically relevant outcomes following an ICU admission.  相似文献   

10.
BACKGROUND: Detailed information regarding the spectrum and predictors of infection after heart transplantation in children is limited because of relatively small numbers of patients at any single institution. We therefore used combined data obtained from the Pediatric Heart Transplant Study Group to gain additional information regarding infectious complications in the pediatric population. METHODS: To determine the time-related risk of infection and death related to infection in a large pediatric patient population, we analyzed data related to 332 pediatric patients (undergoing heart transplantation between January 1, 1993, and December 31, 1994) from 22 institutions in the Pediatric Heart Transplant Study Group. RESULTS: Among the 332 total patients, 276 infections were identified in 136 patients. Of those patients with development of infection, a single infection episode was reported in 54% of patients, 21% had two infections, and 25% had three or more infections. Of the 276 infections, 164 (60%) were bacterial, 51 (18%) were due to cytomegalovirus, 35 (13%) were other viral (noncytomegalovirus) infections, 19 (7%) were fungal, and 7 (2%) were protozoal. Bacterial infections were more common in infants younger than 6 months of age at time of transplantation, comprising 73% of all infections as compared with 49% in patients older than 6 months of age. The incidence of bacterial infection peaked during the first month after transplantation, with the actuarial likelihood of a bacterial infection among all patients reaching 25% at 2 months. The most common sites of bacterial infection were blood and lung (74% of bacterial infections). Cytomegalovirus accounted for 59% of viral infections, with a peak hazard occurring at 2 months after transplantation. Among all infections, cytomegalovirus was less common in infants younger than 6 months of age (8% of all infections) than in older patients (25%). By multivariate analysis, risk factors for early infection included younger recipient age (p = 0.05), mechanical ventilation at time of transplantation (p = 0.0002), positive donor cytomegalovirus serologic study result with negative recipient result (p = 0.004), and longer donor ischemic time (p = 0.04). The overall mortality rate from infection was 5%, with an actuarial freedom from death related to infection of 92% at 1 year after transplantation. The mortality rate was high in patients with fungal infections (52%), yet was low for those with cytomegalovirus infection (6%). Infections accounted for 27% of the overall mortality rate in infants younger than 6 months of age, compared with 16% for older patients. CONCLUSIONS: Although most infections in pediatric heart transplant recipients are successfully treated, infection remains an important cause of posttransplantation morbidity and death, especially in infants. Bacterial infections predominate within the first month after transplantation, whereas the peak hazard for viral infections occurs approximately 2 months after transplantation. Cytomegalovirus infections are common in the pediatric transplant population, but death related to cytomegalovirus is low.  相似文献   

11.
BACKGROUND: Chronic myelogenous leukemia (CML) is an indolent but ultimately fatal disease. Because the natural history of CML varies and quality of life with CML may be excellent until shortly before death, deciding whether and when to pursue unrelated donor bone marrow transplantation is often difficult. OBJECTIVE: To compare early transplantation, delayed transplantation, and no transplantation for patients with chronic-phase CML on the basis of discounted, quality-adjusted life expectancy. DESIGN: A markov model comparing different strategies was constructed. This model considers patient age, quality of life, risk aversion, and the competing risks for CML progression and transplant toxicity. SETTING: Therapeutic decision at the time of diagnosis of CML. PATIENTS: The base case is a 35-year-old patient with intermediate-prognosis CML. Younger and older patients with better and worse prognoses are also evaluated. INTERVENTION: Early transplantation, delayed transplantation, and no transplantation. MEASUREMENTS: Quality-adjusted, discounted life expectancy. RESULTS: For patients with newly diagnosed CML, transplantation within the first year provides the greatest quality-adjusted expected survival, although this benefit decreases with increasing patient age. For a 35-year-old patient with intermediate-prognosis CML, transplantation within the first year results in 53 more discounted, quality-adjusted years of life expectancy than does no transplantation. This finding is robust even with varying baseline assumptions. CONCLUSIONS: These results support the use of early unrelated donor bone marrow transplantation for most patients with CML.  相似文献   

12.
Although cardiac transplantation offers prolonged survival and improved quality of life to patients with end-stage heart failure, many patients with idiopathic dilated cardiomyopathy do not undergo this procedure. Possible barriers to cardiac transplantation were examined among 138 patients with idiopathic dilated cardiomyopathy from five hospitals in Washington, DC. Patients underwent follow-up for approximately 5 years. The patients or a close family member were interviewed at baseline about socioeconomic factors and medical history. The patients or their next-of-kin were recontacted at 1-year intervals to determine patients' vital status and to obtain information about cardiac transplantation. Overall, the cumulative survival at 12 and 60 months was 75.8% and 37.3%, respectively. Only 3.6% (5 of 138) of the patients underwent cardiac transplantation, and 19 (13.8%) patients had been placed on a waiting list for a heart transplant. Black race and nonmarried status were inversely associated with cardiac transplantation. Factors associated with not having been placed on a waiting list included older age, lower income, and lack of private health insurance. Black race was found to be significantly, but inversely associated with cardiac transplantation while older age was inversely associated with having been placed on a waiting list after adjusting for sex, race, education, and private insurance. These findings suggest that black patients with idiopathic dilated cardiomyopathy are less likely to undergo cardiac transplantation.  相似文献   

13.
Objective: To describe and contrast physical functioning, mental health, and quality of life of older individuals with multiple sclerosis (MS) with those of younger individuals with MS. Design/Participants: Thirty older (age ≥ 60 years) and 30 younger participants with MS (age  相似文献   

14.
OBJECTIVE: To assess how surgery affected the quality of life of patients with acoustic neuromas and to investigate possible predictors of the functional outcome following surgery. STUDY DESIGN: A questionnaire based on the Glasgow Benefit Inventory was completed by patients randomly selected following acoustic neuroma surgery. SETTING: Skull base surgery unit of a university teaching hospital (tertiary referral center). PATIENTS: Fifty-three patients with acoustic tumors (follow-up, 1 to 3 y). RESULTS: With regard to overall quality of life, nine patients (17.4%) reported that it became better, 28 patients (53.8%) worse, and 15 patients (28.8%) that it remained the same. Four patients (7.8%) became better off financially, 15 patients (29.4%) worse, and 32 (62.8%) remained unchanged. Forty-one patients (78.8%) did not change their occupation, and 11 (21.2%) had to change their occupation, mainly because of the adverse effects of the operation. With regard to the age at operation, older patients were found to have better overall quality of life. Moreover, younger patients had worse postoperative financial status and they were more likely to change their occupation after the operation. The tumor size did not significantly affect the overall postoperative quality, but it did affect the postoperative financial status (patients with larger tumors were more likely to have worse postoperative financial status). CONCLUSION: Acoustic neuroma surgery has a significant impact on patients' overall quality of life. Surgeons proposing to operate on small tumors should not assume that the impact on patients' life will be necessarily less than that following the removal of larger tumors. All patients, especially in the younger age group, should be prepared and thoroughly informed about the consequences of the operation on their quality of life.  相似文献   

15.
BACKGROUND: Based on graft survival rates it has been claimed that patients with IgA nephropathy have a reduced risk of rejection after kidney transplantation. We wanted to evaluate this hypothesis. METHODS: Certified IgA nephropathy was the original disease in 70 of 874 consecutive kidney transplant patients (8.0%). Eighty per cent of the patients were men. Median age was 37 years, range 9-64. Fifty-three per cent had living donors and 20% of the transplantations were pre-emptive. Non-diabetic patients matched for age, sex, type of donor, and transplant number served as controls. Median follow-up time was 68 months. Duration of treatment for rejection during the first year post-transplant and graft loss due to rejection was recorded. RESULTS: The fraction of patients treated for rejection during the first year was 53% versus 54% of controls and the number of days when any antirejection treatment was given was 5.0 +/- 7.5 versus 5.5 +/- 7.4. Actual 3-year graft survival was 81% versus 80% and the number of grafts lost due to rejection was 9 versus 11. CONCLUSIONS: Rejection rates were not reduced in patients with IgA nephropathy and survival of grafts and patients not better than for matched controls.  相似文献   

16.
OBJECTIVE: Our objective was to assess the long-term mortality and morbidity associated with the Medtronic Intact valve (Medtronic, Inc, Minneapolis, Minn). METHOD: Between 1983 and 1996, 447 patients (280 men and 167 women) received 466 Intact valves: 280 aortic, 156 mitral, and 30 tricuspid. The mean age was 57 years (median 63 years), with 45% younger than 60 years. The mean New York Heart Association class was 3.1. The follow-up was 98% complete and extended for 39 months (1-154 months) and 1324 patient-years. There were 32 valves at risk at 10 years after implantation. Doppler echocardiography was performed whenever possible in patients followed up for longer than 4 years (mean 8 years) after implantation. RESULTS: Ten-year overall actuarial survival was 30% +/- 6% (14% +/- 7% for New York Heart Association classes IV-V and 39% +/- 8% for classes I-III). At 10 years freedom from infective endocarditis was 92% +/- 3%, freedom from thromboembolism was 80% +/- 5%, and freedom from nonstructural valve deterioration was 95% +/- 2%. Ten-year freedom from explantation was 64% +/- 6%, freedom from valve-related events was 51% +/- 6%, and freedom from valve-related death was 88% +/- 3%. There were 26 examples of structural valve deterioration, mainly caused by leaflet calcification (in 17 cases) and by buttress detachment (in 6 cases). In the aortic position at 10 years freedom from structural valve deterioration was 81% +/- 9%, but with only 1 event in patients older than 40 years (freedom 92% +/- 8%) and 100% freedom in patients older than 60 years. There was also 100% freedom from structural valve deterioration in the tricuspid position. In the mitral position freedom was 65% +/- 8%, with no significant difference between age groups. CONCLUSION: The Intact valve provides superior results in the aortic position in patients older than 40 years and in the tricuspid position at all ages.  相似文献   

17.
OBJECTIVES: To compare the safety and tolerability of tamsulosin 0.4 mg once daily in younger (< 65 years) and older (> or = 65 years) patients with lower urinary tract symptoms (LUTS) suggestive of benign prostatic obstruction (BPO). METHODS: In a retrospective analysis of two European double-blind, randomized, placebo-controlled trials, safety was assessed in 574 younger or older patients treated with tamsulosin or placebo for 12 weeks. RESULTS: The incidence of adverse events, drug-related adverse events, serious adverse events and discontinuations due to adverse events was similar in older and younger tamsulosin-treated patients and was not significantly different from placebo. Although abnormal ejaculation was slightly more common in younger than older men receiving tamsulosin, the difference was not statistically significant from the placebo groups in both age groups. The incidence of adverse events possibly associated with vasodilation in tamsulosin-treated younger and older patients was 8.4 and 4.2%, respectively; these were comparable with the values for placebo-treated patients: 7.5 and 6%, respectively. Baseline systolic blood pressure was higher in older than younger patients, but there were minimal changes in blood pressure or pulse rate in tamsulosin- or placebo-treated patients in either age group. CONCLUSIONS: Tamsulosin is well tolerated and suitable for use in older and younger patients with LUTS suggestive of BPO (symptomatic BPH).  相似文献   

18.
A group method of therapy was used for the treatment of primary orgasmic dysfunction ten women below and ten women above 35 years of age to determine the appropriateness of this therapy for younger and older females. The treatment combined a Masters and Johnson style of behavioral therapy and self-stimulation therapy. At termination, 70% of the younger women were orgasmic, with 80% orgasmic at 6-month follow-up. Zero percent was coitally orgasmic. Forty percent of the older women were orgasmic at therapy termination, with 60% orgasmic at 6-month follow-up. One women was orgasmic during intercourse. There was general enhancement of the sexual relationship in all participating couples. Group therapy may be less successful for older women, who may be more successfully treated individually.  相似文献   

19.
BACKGROUND: Graft coronary artery disease (CAD) is an increasingly important problem during long-term survival after heart transplantation, but the importance of cellular rejection, in particular late after transplantation, remains undetermined. METHODS and RESULTS: We analyzed 492 coronary angiographies (967+/-705 days after transplantation; range, 49 days to 9.4 years) and 5201 endomyocardial biopsies (518+/-648 days after transplantation) from 156 patients (age, 47+/-11 years). Patients with angiographically detectable graft CAD had significantly more episodes of rejection requiring augmentation of immunosuppressive therapy (i.e., International Society of Heart and Lung Transplantation score > or = 3A) than those without graft CAD during the first (3.7+/-2.6 vs. 2.2+/-2.0, P<0.001) as well as subsequent years after transplantation (1.2+/-1.9 vs. 0.4+/-0.9, P<0.01). Multivariate logistic regression analysis including established risk factors for CAD, ischemic time, gender and age of donors and recipients, number of mismatches, cytomegalovirus infection, and drug therapy showed that the number of rejections during the first [odds ratio (OR)=1.39, P<0.005] as well as subsequent years (OR=1.49, P<0.05), previous cytomegalovirus infection (OR=3.21, P<0.05), donor age >40 years (OR=2.97, P<0.05), and current or former smoker status (OR=2.76, P<0.05) were independent predictors of graft CAD. In patients without angiographically detectable graft CAD 1 year after transplantation, the number of rejections after the first year was even more strongly related to graft coronary artery disease than in the total patient population, underlining the importance of late cellular rejection (OR=1.74, P<0.005). CONCLUSION: Rejection requiring augmentation of immunosuppression early and late after transplantation is an independent risk factor for the development of angiographically detectable graft CAD. Hence, the search for and treatment of moderate or severe rejection seems to be prudent even late after transplantation.  相似文献   

20.
BACKGROUND: The evidence-based approach to medical care involves the explicit use of evidence on the magnitude of the effects of interventions to inform diagnostic and treatment decisions. This article critiques current mainstream guidelines on the management of hypertension in the elderly (aged 60 years and over) and presents an alternative evidence-based approach. METHODS: Three major national and international guidelines for the management of hypertension from the United Kingdom (UK), the United States (US) and from a joint World Health Organisation/International Society of Hypertension (WHO/ISH) Working Party were appraised and the evidence on which they were based was reviewed. The relevant evidence was also assessed to determine the likely magnitude of risks and benefits of anti-hypertensive treatment in older people and an alternative approach to making treatment decisions, based on the New Zealand guidelines for the management of hypertension, is described. RESULTS: Hypertension management guidelines from the UK, US and WHO/ISH made similar recommendations about which elderly patients should be treated, although there were some ambiguities in their advice. Treatment recommendations were based primarily on blood pressure levels which were set at about 160 mm Hg systolic and/or 90 mm Hg diastolic. The threshold levels were based mainly on the cut-off blood pressure levels used in randomised trials of anti-hypertensive drug treatment, rather than the estimated magnitude of treatment benefit. Each of the guidelines acknowledged the important effect of associated cardiovascular disease (CVD) risk factors on the likely benefits of treatment, but did not expand on the magnitude of this effect. No patient-specific estimates of the likely absolute benefits of treatment were provided in any of the guidelines. In contrast the New Zealand guidelines for the management of hypertension recommend the use of explicit estimates of absolute CVD risks and benefits to inform treatment decisions. They were designed to provide practitioners with estimates of the likely absolute risk of CVD in patients with different risk factor profiles and with estimates of the absolute benefits of treatment. The New Zealand guidelines recommend that drug treatment be considered in patients with a 5-year risk of CVD of about 10-15% or more; approximately 25 patients with a 10-15% risk would require treatment for 5 years to prevent one CVD event. As elderly patients are generally at higher absolute CVD risk than younger people, the New Zealand recommendation give priority to the treatment of older patients. In order to take account of differences in life expectancy and the medical costs of caring for elderly people, absolute risk-based guidelines can be improved by incorporating potential years of life gained from treatment and the cost-effectiveness of treatment expressed as $/quality adjusted life years gained. Preliminary analyses indicate that the cost-effectiveness of treatment is generally greatest in patients in their 60s and early 70s. Treatment in younger people is not usually very cost-effective because of their low absolute risk of CVD and the cost-effectiveness of treatment in people over about 75 years declines because of the increasing cost of non-CVD morbidity. CONCLUSIONS: The explicit assessment of absolute CVD risks and likely treatment benefits in patients with hypertension can usefully inform treatment decisions and provide a more rational basis for initiating therapy than blood pressure levels alone. This approach highlights the generally greater CVD risk and potential treatment benefits in older compared with younger hypertensive patients. The absolute risk-based approach can be further enhanced by providing decision makers with patient-specific data on the potential life years gained from treatment and its cost-effectiveness. (ABSTRACT TRUNCATED)  相似文献   

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