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1.
United European Gastroenterol J ; 6(1): 104-111, 2018 Feb.
Article in English | MEDLINE | ID: mdl-29435320

ABSTRACT

BACKGROUND: Since introduction of the MELD score in the liver allograft allocation system, renal insufficiency has emerged as an increasing problem. Here we evaluated the course of kidney function in patients with advanced renal insufficiency prior to liver transplantation (LT). METHODS: A total of 254 patients undergoing LT at the University Medical Centre Hamburg-Eppendorf (2011-2015) were screened for renal impairment (GFR < 30 ml/min) prior to LT in this observational study. RESULTS: Eighty (32%) patients (median 60 years; M/F: 48/32) had significant renal impairment prior to LT. Median follow-up post-LT was 619 days. Patient survival at 90 days, one year and two years was 76%, 66% and 64%, respectively. Need for dialysis postoperatively but not preoperatively was associated with increased mortality (p < 0.05). Renal function improved in 75% of survivors, but 78% of patients had chronic kidney disease ≥ stage 3 at end of follow-up. Of eight (16%) survivors remaining on long-term dialysis, so far only four patients have received a kidney transplant. CONCLUSION: Postoperative dialysis affected long-term mortality. In 75% of survivors renal function improved, but still the majority of patients had an impaired renal function (CKD stage 3-5) at end of follow-up. Future studies should elucidate the impact of kidney dysfunction and dialysis on recipients' long-term survival.

2.
Transpl Infect Dis ; 18(3): 326-32, 2016 Jun.
Article in English | MEDLINE | ID: mdl-26988272

ABSTRACT

BACKGROUND: Hepatitis C virus (HCV) infection is associated with a particularly poor outcome after liver transplantation. In December 2014, sofosbuvir/ledipasvir (SOF/LDV) fixed-dose combination (FDC) was approved for HCV genotype 1 and 4 in Europe. In orthotopic liver transplantation (OLT) recipients, the interferon-free treatment of HCV re-infection with novel direct-acting antivirals has been demonstrated to be safe and effective in clinical trials, but real-world data are missing. The aim of this study was to investigate the safety and efficacy of SOF/LDV FDC in OLT recipients in the real-life setting. METHODS: All consecutive OLT patients started on SOF/LDV FDC for 12 or 24 weeks at the University Medical Center Hamburg-Eppendorf and Medical School Hannover between October 2014 and August 2015 were retrospectively analyzed (n = 30). The primary efficacy endpoint was sustained virological response (SVR), i.e., absence of viremia 12 weeks after end of treatment (SVR 12). Liver function tests, creatinine, blood count, and HCV RNA (by polymerase chain reaction assay) were determined at each visit. RESULTS: SVR was achieved in 29/30 patients (96.67%) treated with SOF/LDV ± ribavirin (RBV) for 12 (n = 4) or 24 weeks (n = 25). Twenty-five patients (86.2%) received RBV. However, in 15 of the 25 patients, RBV administration had to be discontinued because of severe anemia (57.7%). One RBV-treated patient died of a myocardial infarction during antiviral therapy; this event was most likely not directly related to SOF/LDV. Aside from RBV-associated anemia, no severe side effects of the antiviral regimen were observed. CONCLUSION: Antiviral treatment with SOF/LDV is highly effective, safe, and well tolerated in OLT recipients. The addition of RBV often results in severe anemia, requiring dose reduction or discontinuation.


Subject(s)
Antiviral Agents/pharmacology , Benzimidazoles/pharmacology , Fluorenes/pharmacology , Hepacivirus/drug effects , Hepatitis C/drug therapy , Liver Transplantation/adverse effects , Ribavirin/pharmacology , Sofosbuvir/pharmacology , Aged , Alanine Transaminase/metabolism , Aspartate Aminotransferases/metabolism , Europe , Female , Genotype , Hepacivirus/genetics , Hepatitis C/virology , Humans , Male , Middle Aged , Retrospective Studies , Treatment Outcome
3.
Transpl Infect Dis ; 18(1): 141-5, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26485543

ABSTRACT

BACKGROUND: Hepatitis C virus (HCV) infection is associated with reduced graft survival in orthotopic liver transplant recipients. Treatment with the new direct-acting antivirals (DAAs) is safe and efficient, but no reliable predictive factors for sustained virologic response (SVR) have been identified so far. The HCV core antigen assay (HCV-core-Ag) is a new, inexpensive, and efficient method to detect viral antigens, but the value of this technique to predict treatment response in orthotopic liver transplantation (OLT) patients is still unclear. METHODS: All OLT patients who were treated with a sofosbuvir-based antiviral regimen at our center between March 2014 and August 2014 were included in the analysis (n = 20). HCV-core-Ag and HCV RNA (polymerase chain reaction [PCR]) were determined at each visit. Primary endpoints of this study were SVR at 4 or 12 weeks after end of treatment (SVR 4 and SVR 12). RESULTS: HCV-core-Ag tested negative after a median of 2 weeks (range 1-16 weeks) while PCR tests became negative after a median of 4 weeks (range 2-12 weeks). Time until PCR negativity and until HCV-core-Ag negativity showed a good correlation (R = 0.711, P < 0.001, Fig. ). Seventeen of 20 patients (85%) achieved SVR 12. SVR 12 was associated with a short time interval between treatment start and HCV PCR negativity (P = 0.005) or HCV-core-Ag negativity (P = 0.003, Mann-Whitney test). No severe side effects were observed. CONCLUSIONS: DAA treatment is safe and well tolerated in OLT. The time points of HCV-core-Ag loss and PCR negativity were predictors of SVR 12.


Subject(s)
Antiviral Agents/therapeutic use , Hepacivirus/isolation & purification , Hepatitis C/drug therapy , Liver Transplantation/adverse effects , Sofosbuvir/therapeutic use , Adult , Aged , Cohort Studies , Female , Hepacivirus/genetics , Hepatitis C/virology , Humans , Male , Middle Aged , RNA, Viral/blood , Ribavirin/therapeutic use , Viral Core Proteins/blood , Viral Load
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