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A. Kroidl

Bio: A. Kroidl is an academic researcher. The author has contributed to research in topics: Interferon & Hepatitis C virus. The author has an hindex of 1, co-authored 1 publications receiving 66 citations.

Papers
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Journal ArticleDOI
TL;DR: Early treatment of acute hepatitis C seems to achieve high sustained virological treatment response rates also in patients with HIV‐infection, according to a retrospective survey of HIV‐positive patients with acute HCV infection.
Abstract: Summary. Studies on hepatitis C virus (HCV) monoinfected patients suggest high sustained treatment response rates of up to 98% when interferon monotherapy is administered during the acute phase of HCV-infection. To clarify whether early treatment of acute hepatitis C is similarly efficient in human immunodeficiency virus (HIV) positive patients, we conducted a retrospective survey of HIV-positive patients with acute HCV infection. Eleven HIV-positive patients who had been treated with interferon or interferon/ribavirin were identified at eight HIV-specialty outpatient clinics. The patients had been treated over a median 25 weeks with standard interferon (two patients), pegylated interferon (four patients) and pegylated interferon in combination with ribavirin (five patients). A post-treatment response (negative serum HCV-RNA at the end of treatment) was seen in 10 of 11 patients and HCV-RNA remained undetectable 24 weeks after the end of treatment in all the 10 responders. Alanine aminotransferase (ALT) normalized in eight patients while two virological responders and one nonresponder showed persistent mild ALT elevations. In conclusion, early treatment of acute hepatitis C seems to achieve high sustained virological treatment response rates also in patients with HIV-infection.

66 citations


Cited by
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Journal ArticleDOI
31 May 2007-AIDS
TL;DR: Eleven areas have been identified in which new recommendations are particu-larly needed: management of patients with persistently normalaminotransferasesliverrosis assessment: when and how predictors of response to anti-HCV therapy in coinfected patients, and interactions between HCV medications and antiretroviraldrugs.
Abstract: Chronic hepatitis C (HCV) infection is currently oneof the most clinically relevant comorbidities in theHIV population; overall, it affects one third of HIV-positive individuals [1]. Progression to end-stage liverdisease occurs faster in coinfected patients [2–4] anddecompensated cirrhosis is one of the main causes ofhospitalization and death in this population [5–8].However, the risk of hepatotoxicity using antiretroviraldrugs is increased in subjects with underlying HCVinfection [9,10]. Therefore, the optimal managementof chronic HCV in HIV-positive patients is currentlyapriority.Several guidelines for caring for HCV infection in HIV-positive individuals have been released [11–15]. Becausenew and relevant information has recently appeared, it isconvenient to update them. Eleven areas have beenidentified in which new recommendations are particu-larly needed:management of patients with persistently normalaminotransferasesliver fibrosis assessment: when and howpredictors of response to anti-HCV therapy in coinfectedpatientsoptimal dosages of pegylated interferon (pegIFN) andribavirin (RBV)optimal duration of anti-HCV therapytreatment of non-responders and/or relapserscare of patients with end-stage liver diseasetreatment of acute HCV infection in HIV-infectedindividualsmanagement of patients with multiple hepatitis virusesinteractions between HCV medications and antiretroviraldrugshepatotoxicity of antiretroviral drugs.

345 citations

Journal ArticleDOI
TL;DR: An international phylogenetic study revealed a large international network of HCV transmission among HIV-positive MSM, supported by the large proportion of European MSM infected with an HCV strain co-circulating in multiple European countries, the low evolutionary distances among HCV isolates from different countries, and the trend toward increased country mixing with increasing cluster size.

315 citations

Journal ArticleDOI
TL;DR: The emergence of an MSM-specific transmission network suggests that HIV-positive MSM with high-risk sexual behaviors are at risk for sexually acquired HCV.
Abstract: We retrospectively screened 1836 men who have sex with men (MSM) participating in the Amsterdam Cohort Studies (1984–2003) for hepatitis C virus (HCV) antibodies. HCV incidence was 0.18/100 person-years (PY) in human immunodeficiency virus (HIV)–positive MSM (8/4408 PY [95% confidence interval {CI}, 0.08–0.36]) but was 0/100 PY in MSM without HIV (0/7807 PY [95% CI, 0.00–0.05]). After 2000, HCV incidence among HIV-positive men increased 10-fold to 0.87/100 PY (5/572 PY [95% CI, 0.28–2.03]). Additional hospital cases ( ) showed that MSM in Amsterdam who acquired HCV infection after 2000 reported high rates of n p 34 ulcerative sexually transmitted infections (59%) and rough sexual techniques (56%), denied injection drug use, and were infected mainly with the difficult-to-treat HCV genotypes 1 (56%) and 4 (36%). Phylogenetic analysis showed 3 monophyletic clusters of MSM-specific HCV strains. The emergence of an MSM-specific transmission network suggests that HIV-positive MSM with high-risk sexual behaviors are at risk for sexually acquired HCV. Targeted prevention and routine HCV screening among HIV-positive MSM is needed to deter the spread of HCV.

298 citations

Journal ArticleDOI
TL;DR: Testing for HCV RNA by PCR is the only reliable test for the diagnosis of acute infection and patients with jaundice have a higher likelihood of spontaneous viral clearance than do asymptomatic patients, and thus should be monitored for at least 12 weeks before initiating antiviral therapy.

257 citations

Journal ArticleDOI
31 Jul 2010-AIDS
TL;DR: In this paper, the authors synthesize the most recent epidemiological, immunological and management issues that have emerged as a result of the epidemic of acute hepatitis C virus among HIV-infected MSM.
Abstract: Since 2000 outbreaks of acute hepatitis C virus (HCV) among HIV-positive men who have sex with men (MSM) who denied injecting drug use have been reported from Europe, the United States, Canada and Australia. Given the burden of liver disease, in particular HCV, on the morbidity and mortality in HIV patients in the era of combination antiretroviral therapy, the rapid and significant rise in the incidence of HCV in the HIV-infected MSM population in high-income countries is alarming. This relates to a significant change in the epidemiology of HCV that has occurred, with HCV emerging as a sexually transmitted infection within this population. Work to date suggests that this permucosal HCV transmission results from high-risk sexual and noninjecting drug use behaviours, reopening the discussion on the importance of sexual transmission. Given this occurs almost exclusively in HIV-infected MSM, HIV probably has a critical role mediated either through behavioural and/or biological factors. Finally, the management of acute HCV in HIV infection is complicated by concomitant HIV infection and combination antiretroviral therapy. This review will synthesize the most recent epidemiological, immunological and management issues that have emerged as a result of the epidemic of acute HCV among HIV-infected MSM.

252 citations