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Biomedical subjects

Mitchell L Shiffman

Publications and source records attributed to Mitchell L Shiffman.

At least 19 recordsLinked to original sources
PubMed2007

Outcomes in hepatitis C virus-infected recipients of living donor vs. deceased donor liver transplantation.

In this retrospective study of hepatitis C virus (HCV)-infected transplant recipients in the 9-center Adult to Adult Living Donor Liver Transplantation Cohort Study, graft and patient survival and the development of advanced fibrosis were compared among 181 living donor liver transplant (LDLT) recipients and 94 deceased donor liver transplant (DDLT) recipients. Overall 3-year graft and patient survival were 68% and 74% in LDLT, and 80% and 82% in DDLT, respectively. Graft survival, but not patient survival, was significantly lower for LDLT compared to DDLT (P = 0.04 and P = 0.20, respectively). Further analyses demonstrated lower graft and patient survival among the first 20 LDLT cases at each center (LDLT 20; P = 0.002 and P = 0.002, respectively) and DDLT recipients (P < 0.001 and P = 0.008, respectively). Graft and patient survival in LDLT >20 and DDLT were not significantly different (P = 0.66 and P = 0.74, respectively). Overall, 3-year graft survival for DDLT, LDLT >20, and LDLT 20 were not significantly different. Important predictors of graft loss in HCV-infected patients were limited LDLT experience, pretransplant HCC, and higher MELD at transplantation.

Adult↗
PubMed2006

Impact of ribavirin dose reductions in hepatitis C virus genotype 1 patients completing peginterferon alfa-2a/ribavirin treatment.

BACKGROUND & AIMS: To maximize sustained virologic response (SVR) in patients with chronic hepatitis C virus (HCV) infection, treatment with pegylated interferon and ribavirin has been genotype-specific (1 vs non-1). We evaluated the effects of ribavirin and peginterferon alfa-2a dose reductions on SVR in patients infected with HCV genotype 1. METHODS: Data were pooled from 569 patients enrolled in 2 phase III trials of 48 weeks of treatment with peginterferon alfa-2a and ribavirin. All patients were evaluated for the effect of cumulative drug exposure on 4- and 12-week responses, and the 427 patients who completed treatment were evaluated for effect of drug exposure on SVR. RESULTS: Of patients who completed treatment, more had reductions (< or =97% cumulative dose) of ribavirin than of peginterferon alfa-2a (43% vs 27%). Neither early virologic response nor SVR was affected adversely by ribavirin reductions when the cumulative ribavirin exposure was greater than 60%. The SVR was reduced significantly (P = .0006) in patients with less than the 60% cumulative ribavirin dose and was associated with prolonged periods of dose reduction, temporary interruptions, or premature cessation of ribavirin. Ribavirin dose reductions had minimal impact on SVR in patients who achieved rapid virologic response, defined as undetectable HCV RNA levels after 4 weeks, even when they received less than the 60% cumulative ribavirin dose. In contrast, SVR was reduced markedly in patients who had ribavirin dose reductions and did not achieve rapid virologic response. CONCLUSIONS: Minor ribavirin dose reductions to manage adverse events do not appear to affect SVR adversely, unless cumulative exposure is less than 60%. Prospective studies, however, are required to establish the impact of ribavirin dose reduction on SVR.

Adult↗
PubMed2006

Identification of two gene variants associated with risk of advanced fibrosis in patients with chronic hepatitis C.

BACKGROUND & AIMS: Previously identified clinical risk factors such as sex, alcohol consumption, and age at infection do not accurately predict which patients with chronic hepatitis C (CHC) will develop advanced fibrosis (bridging fibrosis and cirrhosis). The aim of this study was to identify genetic polymorphisms that can predict the risk of advanced fibrosis in patients with CHC. METHODS: A total of 916 subjects with CHC was enrolled from 2 centers. A gene-centric disease association study of 24,832 putative functional, single nucleotide polymorphisms (SNPs) was performed. Of the 1609 SNPs that were significantly associated (P </= .05) with advanced fibrosis in the discovery cohort (University of California San Francisco [UCSF], N = 433), the first batch of 100 SNPs were selected for validation in the replication cohort (Virginia Commonwealth University [VCU], N = 483). RESULTS: A missense SNP in the DEAD box polypeptide 5 (DDX5) gene was significantly associated with an increased risk of advanced fibrosis in both the UCSF and the VCU cohorts (OR, 1.8 and 2.2, respectively). Two diplotype groups, carrying the haplotypes composed of the DDX5 SNP and 2 neighboring POLG2 SNPs were also significantly associated with an increased risk of advanced fibrosis and had comparable or better risk estimates. In addition, a missense SNP in the carnitine palmitoyltransferase 1A (CPT1A) gene was associated with a decreased risk of advanced fibrosis in both the UCSF and the VCU cohorts (OR, 0.3 and 0.6, respectively). CONCLUSIONS: Subjects with CHC carrying DDX5 minor allele or DDX5-POLG2 haplotypes are at an increased risk of developing advanced fibrosis, whereas those carrying the CPT1A minor allele are at a decreased risk.

Adolescent↗
PubMed2006

Viral and metabolic factors influencing alanine aminotransferase activity in patients with chronic hepatitis C.

BACKGROUND/AIMS: In chronic hepatitis C, disease progression and clinical manifestations are heterogenous. To clarify the role and interactions of viral and host factors in inducing liver cell injury, we examined the associations of several virological and metabolic variables with serum alanine aminotransferase levels. METHODS: Patients with chronic hepatitis C enrolled in three phase III clinical trials of peginterferon alfa-2a (40KD) plus ribavirin (two studies analysing 'elevated' and one persistently 'normal' alanine aminotransferase) were included. RESULTS: Multivariate analyses of 2,881 patients before treatment and of 1,403 patients with a sustained virological response indicated that gender, viral factors (genotype, HCV RNA titer) and indicators of metabolic syndrome (body mass index, blood pressure, blood glucose, cholesterol and triglyceride concentration) were associated with alanine aminotransferase levels. In addition, hepatitis C virus infection influenced serum lipids concentration according to a genotype-specific effect. CONCLUSIONS: Heterogeneity in alanine aminotransferase levels in patients with chronic hepatitis C partially depends on the degree of derangement of fat and carbohydrate metabolism. As this is the result of an interaction of chronic hepatitis C infection with the patient's individual characteristics, treatment decisions should not be based on alanine aminotransferase level alone but rather on global evaluation of the patient.

Alanine Transaminase↗
PubMed2006

A double-blind placebo-controlled study of emtricitabine in chronic hepatitis B.

BACKGROUND: Emtricitabine is a nucleoside analogue approved for treatment of human immunodeficiency virus 1 with clinical activity against hepatitis B virus (HBV). METHODS: To compare the safety and efficacy of emtricitabine with placebo in patients with HBV, we conducted a randomized (2:1), double-blind study at 34 sites in North America, Asia, and Europe that enrolled adults between November 2000 and July 2002 who had chronic HBV infection but had never been exposed to nucleoside or nucleotide treatment. Each patient received either 200 mg of emtricitabine (n=167) or placebo (n=81) once daily for 48 weeks and underwent a pretreatment and end-of-treatment liver biopsy. Histologic improvement was defined as a 2-point reduction in Knodell necroinflammatory score with no worsening in fibrosis. RESULTS: At the end of treatment, 103 (62%) of 167 patients receiving active treatment had improved liver histologic findings vs 20 (25%) of 81 receiving placebo (P<.001), with significance demonstrated in subgroups positive (P<.001) and negative (P=.002) for hepatitis Be (HBe) antigen. Serum HBV DNA readings showed less than 400 copies/mL in 91 (54%) of 167 patients in the emtricitabine group vs 2 (2%) of 81 in the placebo group (P<.001); alanine aminotransferase levels were normal in 65% (109/167) vs 25% (20/81), respectively (P<.001). At week 48, 20 (13%) of 159 patients in the emtricitabine group with HBV DNA measured at the end of treatment had detectable virus with resistance mutations (95% confidence interval, 8%-18%). The rate of seroconversion to anti-HBe (12%) and HBe antigen loss were not different between arms. The safety profile of emtricitabine during treatment was similar to that of placebo. Posttreatment exacerbation of HBV infection developed in 23% of emtricitabine-treated patients. CONCLUSION: In patients with chronic HBV, both positive and negative for HBe antigen, 48 weeks of emtricitabine treatment resulted in significant histologic, virologic, and biochemical improvement.

Adult↗
PubMed2006

Similarities and differences in outcomes of cirrhosis due to nonalcoholic steatohepatitis and hepatitis C.

The objective of this study was to prospectively define outcomes of cirrhosis due to nonalcoholic steatohepatitis (NASH) and compare them with those associated with hepatitis C virus (HCV) infection. We compared 152 patients with cirrhosis due to NASH with 150 matched patients with cirrhosis due to HCV. Over 10 years, 29/152 patients with cirrhosis due to NASH died compared with 44/150 patients with HCV (P < .04). This was mainly due to the lower mortality rate in patients with Child class A cirrhosis due to NASH versus HCV (3/74 vs. 15/75; P < .004). There were no significant across-group differences in mortality in patients with Child class B or C cirrhosis. Sepsis was the most common cause of death in both groups; patients with NASH had a higher cardiac mortality (8/152 vs. 1/150; P < .03). Patients with Child class A cirrhosis due to NASH also had a significantly lower risk of decompensation, defined by a 2-point increase in Child-Turcotte-Pugh score (P < .007). Cirrhosis due to NASH was associated with a lower rate of development of ascites (14/101 vs. 40/97 patients at risk; P < .006). NASH also had a significantly lower risk of development of hepatocellular carcinoma (10/149 vs. 25/147 patients at risk; P < .01). In conclusion, compensated cirrhosis due to NASH is associated with a lower mortality rate compared with that due to HCV. It is also associated with a lower rate of development of ascites, hyperbilirubinemia, and hepatocellular carcinoma. However, cardiovascular mortality is greater in patients with NASH.

Ascites↗
PubMed2006

HCV RNA detection by TMA during the hepatitis C antiviral long-term treatment against cirrhosis (Halt-C) trial.

For making treatment decisions related to chronic hepatitis C, the utility of HCV RNA tests with increased sensitivity has not been defined. Prior interferon nonresponders with advanced fibrosis (n = 1,145) were retreated with peginterferon alpha-2a and ribavirin. Patients who were HCV RNA-negative by a polymerase chain reaction (PCR)-based assay (Roche COBAS Amplicor HCV Test, v. 2.0; lower limit of detection [LOD] 100 IU/mL) at week 20 (W20) received treatment for 48 weeks. Stored specimens were tested using the Bayer VERSANT HCV RNA Qualitative (TMA) Assay (LOD 9.6 IU/mL) and compared to PCR results for the ability to predict sustained virological response (SVR; defined as undetectable HCV RNA by PCR at W72). Nearly all PCR-positive samples (1006/1007, 99.9%) were positive as assessed by TMA. Among 1,294 PCR-negative samples, 22% were TMA-positive. Negative TMA results were more predictive of SVR than were negative PCR results at W12 (82% vs. 64%, P < .001) and at W20 (66% vs. 52%, P = 0.001). SVR was more likely the earlier TMA had become negative during treatment (82% at W12, 44% at W20, 20% at W24). Among 45 patients who were TMA-positive but were PCR-negative at W20 and W24, none achieved SVR (95% CI: 0%-8%). Approximately 10% of patients with a single positive TMA result at the end of treatment still achieved SVR. In conclusion, negative TMA results at or after W12 were superior to negative PCR results for predicting SVR. In patients with negative PCR results during treatment, a single positive TMA test did not exclude SVR, although persistently positive tests did.

Antiviral Agents↗
PubMed2006

Impact of disease severity on outcome of antiviral therapy for chronic hepatitis C: Lessons from the HALT-C trial.

In patients with chronic hepatitis C, advanced fibrosis and cirrhosis are associated with lower rates of sustained virologic response (SVR) to interferon (IFN)-based therapy. In this study, we assessed virologic response to retreatment with peginterferon alfa-2a and ribavirin (RBV), as a function of the baseline fibrosis score (Ishak staging) and platelet count, in 1,046 patients enrolled in the Hepatitis C Antiviral Long-term Treatment against Cirrhosis (HALT-C) Trial. All patients had failed prior treatment with IFN or peginterferon +/- RBV and had Ishak fibrosis scores > or = 3. Four groups of patients with increasingly severe liver disease were compared: (A) bridging fibrosis (Ishak 3 and 4) with platelet counts >125,000/mm3 (n = 559); (B) bridging fibrosis with platelet counts < or =125,000/mm3 (n = 96); (C) cirrhosis (Ishak 5 and 6) with platelet counts >125,000/mm3 (n = 198); and (D) cirrhosis with platelet counts < or =125,000/mm3 (n = 193). SVR rates were 23%, 17%, 10%, and 9% in groups A, B, C, and D, respectively (P < .0001 for trend). Reduction in SVR as a function of increasingly severe disease was independent of age, percent African American, HCV genotype, HCV level, and type of prior therapy. Dose reduction lowered SVR frequencies, but to a lesser extent than disease severity. By logistic regression, cirrhosis (P < .0001) was the major determinant that impaired virologic response, independent of dose reduction or platelet count. In conclusion, disease severity is a major independent determinant of rate of SVR in patients with advanced chronic hepatitis C. New strategies are needed to optimize antiviral therapy in these "difficult-to-cure" patients.

Antiviral Agents↗
PubMed2006

Chronic hepatitis C: treatment of pegylated interferon/ribavirin nonresponders.

Patients with chronic hepatitis C virus (HCV) who were nonresponders to previous treatment with pegylated interferon and ribavirin are a growing population. The vast majority have genotype 1, a high viral load, advanced fibrosis or cirrhosis, and are of African-American race. The evaluation of these patients should include a thorough review of the previous treatment record and characterization of the previous nonresponse. Patients with prior null response are likely resistant to the effects of interferon. In contrast, patients with partial virologic response, breakthrough, and relapse could potentially achieve sustained virologic response if one or more correctable factors that contributed to the prior nonresponse are identified and addressed before and during retreatment. Many HCV nonresponders, especially those with no fibrosis or mild fibrosis, have an excellent prognosis, are at low risk to develop cirrhosis, and should simply be monitored at periodic intervals until more effective therapy has been developed.

Antiviral Agents↗
PubMed2006

Chronic hepatitis C in patients with persistently normal alanine transaminase levels.

BACKGROUND & AIMS: Many patients with chronic hepatitis C virus (HCV) have persistently normal serum alanine transaminase (ALT) levels. We compared characteristics of chronic hepatitis C patients with patients with normal and elevated ALT levels using data from 3 randomized phase III trials of peginterferon alfa-2a (40 kDa). METHODS: The characteristics of 480 patients with normal ALT values (on >or=3 occasions without any increases in ALT level over a 6- to 18-month period) and 1993 patients with elevated ALT levels were compared. Sixty-eight of the 480 patients with normal ALT levels were randomized to no treatment and monitored for 72 weeks. RESULTS: More patients with normal ALT levels than patients with elevated ALT levels were women (59% vs 32%; P<.01). The serum HCV RNA titer was significantly lower in patients with normal ALT levels (P<.01 vs in patients with elevated ALT levels). Patients with normal ALT levels had significantly lower inflammation and fibrosis scores on liver biopsy examination than patients with elevated ALT levels, but almost two-thirds had portal fibrosis and 10% had bridging fibrosis. No correlation between baseline ALT activity, HCV RNA level, and liver histology was observed in patients with normal ALT levels. During the 72-week follow-up period, ALT activity elevated above the upper limit of normal in 53% of the untreated patients with normal levels of ALT. None became HCV RNA undetectable. CONCLUSIONS: Chronic hepatitis C patients with normal ALT levels should be evaluated in a similar manner as patients with elevated ALT levels because they are at risk for developing significant liver disease. The decision to treat with peginterferon alfa and ribavirin should be based on multiple factors, rather than on ALT levels alone.

Adult↗
PubMed2006

Approach to the management of patients with chronic hepatitis C who failed to achieve sustained virologic response.

The combination of PEGIFN and RBV is the most effective therapy for patients with chronic hepatitis C. Although more than half of all patients are able to achieve SVR, a significant proportion of patients, particularly those with genotype 1, fail to have undetectable HCV RNA during treatment or relapse after completing therapy with return of detectable HCV RNA. An approach in the management of these patients is to identify factors that could have led to the NR or relapse and that could be corrected before or during a second course of therapy. Because fibrosis progression occurs slowly over decades for many patients with chronic hepatitis C, avoiding alcohol or other factors that could lead to fibrosis progression may be sufficient for the vast majority of patients. Other options that could be considered in patients who have more advanced disease include retreating with one of several new antiviral agents; retreating with higher doses of IFN or PEGIFN and RBV; or using IFN, PEGIFN, or RBV monotherapy long-term as maintenance therapy. The safety and efficacy of these approaches is being evaluated in numerous clinical trials.

Journal Article↗
PubMed2006

Treatment of chronic hepatitis C patients with persistently normal alanine aminotransferase levels with the combination of peginterferon alpha-2a (40 kDa) plus ribavirin: impact on health-related quality of life.

BACKGROUND: Peginterferon alpha-2a (40 kDa) plus ribavirin is equally effective in chronic hepatitis C patients with normal or elevated alanine aminotransferase (ALT) values. This analysis, in patients with normal ALT levels, compared health-related quality of life (HRQoL) measurements between untreated control patients and treated patients grouped by virological response. HRQoL in the present population was also compared with HRQoL in patients with elevated ALT levels, observed in a previous study. METHODS: A total of 491 patients with persistently normal ALT levels were randomized to peginterferon alpha-2a (40 kDa)/ribavirin for 24 (group A) or 48 weeks (group B) or no treatment for 72 weeks (group C). Quality of life was assessed with valid instruments (self-administered Short Form (SF)-36 Health Survey and Fatigue Severity Scale). RESULTS: In groups A and B, patients with sustained virological responses after combination therapy had significantly better quality of life and less fatigue than patients without sustained responses. Differences were significant for five SF-36 domains, the SF-36 Physical Component score and both Fatigue Severity Scale scores. Viral clearance was not observed in any untreated patients (group C). Comparison with data from elevated ALT patients revealed little difference in baseline quality of life, although normal ALT patients had significantly higher scores related to mental health than elevated ALT patients. CONCLUSIONS: Eradication of HCV with peginterferon alpha-2a (40 kDa) plus ribavirin is associated with better quality of life and less fatigue in normal ALT patients. These patient benefits, coupled with the high probability of eradicating HCV, should be considered in making decisions about treating this population.

Adult↗
PubMed2005

Approach to the management of patients with chronic hepatitis C who failed to achieve sustained virologic response.

The combination of peginterferon and ribavirin is the most effective therapy for patients with chronic hepatitis C virus (HCV) infection. Although more than half of all patients are able to achieve a sustained virologic response (SVR), a significant proportion of patients, particularly those with genotype 1, fail to have undetectable HCV RNA during treatment or relapse after completing therapy with return of detectable HCV RNA. The management of these patients creates a formidable challenge. This article outlines various strategies for patients who have failed to achieve SVR and discusses the merits of different approaches to management.

Amantadine↗
PubMed2005

Predicting sustained virological responses in chronic hepatitis C patients treated with peginterferon alfa-2a (40 KD)/ribavirin.

BACKGROUND/AIMS: Prediction of sustained virological response (SVR) during treatment would allow clinicians to identify patients most likely to benefit from therapy. METHODS: Retrospective analysis of data from 1121 adults with chronic hepatitis C treated for 48 weeks with peginterferon alfa-2a (40 KD) 180 microg/week plus placebo or ribavirin (1000/1200 mg/day), or interferon alfa-2b 3 MIU three times/week plus ribavirin in a randomized, multinational, study. RESULTS: 67% of patients treated with peginterferon alfa-2a (40 KD)/ribavirin with early virological responses (HCV RNA negative or > or = 2 log10 decrease) at week 12 had SVRs at week 72 (HCV RNA < 50 IU/mL). The negative predictive value (NPV) was 97%. The probability of an SVR increased with the rapidity of HCV RNA suppression. The highest SVR rates were achieved in patients with rapid virological responses at week 4, but the corresponding NPV (74%) is too low for a decision criterion. In patients with early virological responses by week 12, the SVR rate was approximately 20% lower in those who received <80% compared with patients who received > or = 80% of the planned ribavirin dose. CONCLUSIONS: Early, sustained suppression of HCV replication portends an SVR. Cessation of treatment may be contemplated in patients without a > or = 2 log10 reduction in HCV RNA after 12 weeks.

Antiviral Agents↗
PubMed2005

The spectrum of chronic hepatitis C virus infection in the Virginia Correctional System: development of a strategy for the evaluation and treatment of inmates with HCV.

BACKGROUND AND OBJECTIVE: Chronic hepatitis C virus (HCV) is common in the inmate population of the United States. Long-standing HCV can progress to cirrhosis, which can contribute to significant morbidity and mortality. However, those inmates with histologically mild disease are unlikely to develop liver-related morbidity or mortality during their period of incarceration. Our objective was to develop an economic strategy for evaluation and treatment of inmates with chronic HCV. METHODS AND MEASURES: A retrospective cohort analysis of 302 inmates within the Virginia Department of Corrections (VDOC) who underwent liver biopsy for chronic HCV at the Virginia Commonwealth University Health System between 1998 and 2002 was performed. The data from this analysis was to utilized to develop a cost model for treatment of chronic HCV in this population based upon biochemical or histologic criteria. We used the perspective of the VDOC using actual costs paid to providers, hospitals, and pharmacies. The primary endpoint was cost-effectiveness of HCV treatment. RESULTS: Eighty percent of inmates with chronic HCV were genotype 1, 49% had a normal value for serum ALT at the time of evaluation, 30% had no fibrosis, and 24% had bridging fibrosis or cirrhosis. The cost to evaluate and treat 100 consecutive inmates with peginterferon and ribavirin regardless of serum ALT and liver histology was calculated to be $1,775,900 or $35,500 per sustained virologic response (SVR). Although the cost declined by 50% if only those patients with an elevated serum ALT were treated, 45% of those inmates with varying degrees of fibrosis, and 21% with cirrhosis would not have received therapy utilizing this scenario. In contrast, the cost of performing liver biopsy and treating only those patients with any degree of fibrosis was $1,367,043; a savings of slightly more than $400,000 per 100 patients evaluated. The overall cost of treatment was most influenced by the price of peginterferon and ribavirin, which declined as the histologic criteria utilized for treatment increased. CONCLUSIONS: A strategy in which inmates with chronic HCV are evaluated and a decision regarding treatment is based upon either biochemical or histologic criteria, which appears to balance both the health-care rights of the inmate and the impact of treating this disease on the financial and other resources of the correctional system.

Adult↗
PubMed2005

Antibody-mediated pure red cell aplasia due to epoetin alfa during antiviral therapy of chronic hepatitis C.

Anemia frequently complicates the treatment of chronic hepatitis C with interferon and ribavirin (RVN), requiring dose reduction and jeopardizing sustained virologic response. Increasingly, epoetin alfa is used to prevent anemia in this setting. Below, we report the first case of pure red cell aplasia (PRCA) in a patient with chronic hepatitis C who received epoetin alfa (Procrit) to manage anti-viral treatment-induced anemia. Red blood cell transfusion-dependence developed 16 wk after the patient was started on peginterferon alfa-2b and RVN for chronic hepatitis C despite the simultaneous administration of epoetin alfa and subsequent discontinuation of the antiviral medications. Bone marrow biopsy was consistent with PRCA. High-titer erythropoietin antibodies, assayed by two methods, appeared shortly after epoetin alfa was administered, and were associated with a decline in serum erythropoietin to undetectable levels. Erythropoietin antibodies directed toward epoetin alfa were shown to cross react with darbepoetin alfa (Aranesp), and a neutralization assay confirmed that they inhibited cell growth in the presence of erythropoietin. Transfusion-dependence resolved approximately 16 wk after discontinuing epoetin alfa, and 6 wk after starting danazol. PRCA caused by the development of erythropoietin antibodies is a potentially life-threatening complication of administering epoetin alfa to prevent the anemia associated with antiviral therapy in patients with chronic hepatitis C.

Antibodies↗
PubMed2005

Liver and intestine transplantation: summary analysis, 1994-2003.

With nearly two years of data available since the inception of the MELD and PELD allocation system, this article examines national OPTN/SRTR data to describe trends in waiting list composition, waiting list mortality, transplant rates, and patient and graft outcomes for liver transplantation. Following a 6% reduction in the size of the waiting list after MELD was implemented in 2002, the number of patients on the waiting list grew by 2% from 2002 to 2003, while the number of liver transplants increased by 6%. The overall death rate while on the liver waiting list has decreased from 225 deaths per 1,000 patient years in 1994 to 124 deaths in 2003. As with the waiting list death rates, post-transplant death rates have also decreased over the past decade. Unadjusted one-year patient survival was lower for older donor age groups (88% for donors aged 18-34, 87% for donors aged 35-49, 85% for donors aged 50-64); a similar trend was observed at three and five years following transplantation. Intestine transplantation is performed with slowly increasing frequency and success. Early graft losses and rejection rates have changed little since 1994, but rejection is easier to control and long-term survival is improving.

Adolescent↗