No abstract

On the basis of historical studies, hepatitis delta virus (HDV) infection is considered uncommon in the United Kingdom (UK) and mainly confined to intravenous drug users. In order to assess the current prevalence of HDV co-infection in patients with chronic hepatitis B (HBV), a retrospective analysis was performed of 962 consecutive HBV-infected adult patients referred to King's College Hospital between January 1st 2000 and March 31st 2006. The 82 subjects positive for HDV antibody (8.5%) had a similar age to those without HDV (median 36 years, interquartile range 30-47, vs. 35 years, 29-43). Excluding non-UK residents, the prevalence of HDV Antibody was 7.1%. Most HDV-infected subjects were born in regions where HDV is endemic, for example, Southern or Eastern Europe (28.1%), Africa (26.8%) or Middle-East (7.3%). Forty one (50%) were considered to have acquired HDV infection via intra-familial transmission but intravenous drug use was still a common route of transmission (24.4%). Comparing HBV/HDV co-infected to HBV mono-infected patients, a higher proportion were hepatitis C antibody positive (25.6% versus 3.8%; odds ratio 8.89, 95% confidence interval 4.4-17.9; P < 0.00001) and more had cirrhosis (26.8% vs. 12.9%; odds ratio 2.64, 95% confidence interval 1.55-4.49; P < 0.0001) but, despite this, the risk of hepatocellular carcinoma was similar (odds ratio 1.34, 95% confidence interval 0.62-2.91). Although HDV infection is reportedly declining in some endemic regions, our data demonstrate a high prevalence in South London. HDV co-infection is associated with increased morbidity and patients with HBV should be tested for HDV infection.

The King's Score is a simple and accurate index for predicting cirrhosis in chronic hepatitis C. Patients with a score of less than 16.7 have a low risk of cirrhosis.

With increased demand for liver transplantation (LT), outcomes of older recipients have been subjected to greater scrutiny, as previous studies have demonstrated poorer survival outcomes. Outcomes of 77 patients aged Ͼ 65 yr (group 1) who underwent transplantation between 1988 and 2003 at King's College Hospital, London, were compared with all recipients aged between 60 and 64 yr (group 2, n ϭ 137) and 202 time-matched control patients with chronic liver disease aged between 18-59 yr (group 3). Patient survival at 30-days for groups 1, 2, and 3 were 99%, 94%, and 94%, respectively (P ϭ not significant [NS]). At 1-yr, survival in the 3 groups was 82%, 86%, and 83%, respectively (P ϭ NS), and at 5-yr patient survival was comparable (73%, 80%, and 78%, respectively) (P ϭ NS). Episodes of acute cellular rejection (ACR) were fewer in the older cohorts (43% vs. 45% vs. 61%, P ϭ 0.0016), although there was no significant difference identified in the numbers of patients in each group who experienced ACR (P ϭ 0.16). A similar but nonsignificant trend was identified for rates of chronic rejection among the groups. In conclusion, these data suggest that survival of patients over 60 and 65 yr undergoing LT is satisfactory, at least in the first 5-yr posttransplantation. In addition, patients over 65 yr experience less rejection, with good graft survival. Thus, LT should not be denied to patients Ͼ65 yr on the basis of age alone, once a comprehensive screen for comorbidity has been undertaken.

Clinical outcomes of recurrent hepatitis C virus after liver transplantation are difficult to predict. We evaluated collagen proportionate area (CPA), a quantitative histological index, at 1 year with respect to the first episode of clinical decompensation. Patients with biopsies at 1 year after liver transplantation were evaluated by Ishak stage/grade, and biopsy samples stained with Sirius red for digital image analysis were evaluated for CPA. Cox regression was used to evaluate variables associated with first appearance of clinical decompensation. Receiver operating characteristic (ROC) curves were also used. A total of 135 patients with median follow-up of 76 months were evaluated. At 1 year, median CPA was 4.6% (0.2%-36%) and Ishak stage was 0-2 in 101 patients, 3-4 in 23 patients, and 5-6 in 11 patients. Decompensation occurred in 26 (19.3%) at a median of 61 months (15-138). Univariately, CPA, tacrolimus monotherapy, and Ishak stage/grade at 1 year were associated with decompensation; upon multivariate analysis, only CPA was associated with decompensation (P ¼ 0.010; Exp(B) ¼ 1.169; 95%CI, 1.037-1.317). Area under the ROC curve was 0.97 (95%CI, 0.94-0.99). A cutoff value of 6% of CPA had 82% sensitivity and 95% specificity for decompensation. In the 89 patients with hepatic venous pressure gradient (HVPG) measurement, similar results were obtained. When both cutoffs of CPA > 6% and HVPG ! 6 mm Hg were used, all patients decompensated. Thus, CPA at 1-year biopsy after liver transplantation was highly predictive of clinical outcome in patients infected with hepatitis C virus who underwent transplantation, better than Ishak stage or HVPG.