Carmen Quereda

Hospital General Universitario Gregorio Marañón, Madrid, Madrid, Spain

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Publications (49)259.88 Total impact

  • Chapter: Treatment of Chronic Hepatitis C in “Difficult-to-Treat” Patients in the Clinical Setting
    Ana Moreno, Rafael Bárcena, Carmen Quereda
    11/2007: pages 192-214;
  • Article: Trends in neurological complications of endocarditis.
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    ABSTRACT: Neurological complications (NCs) are a major cause of morbidity and mortality in patients with infectious endocarditis (IE). The frequency of these complications has been found to remain constant since the preantibiotic era despite profound epidemiological changes and therapeutic advances. We have reviewed retrospectively all the cases of IE attended at a single institution between 1985 and 2003, aiming to study the clinical characteristics of the NCs, and to analyse possible temporal trends in their frequency. Among 550 patients with IE, 71 (13%) suffered NCs. NCs presented more frequently in native (NVE) and prosthetic (PVE) valve endocarditis (17% and 20%, respectively) than in endocarditis associated with drug addiction (IDU-NVE) or pacemeker (6% and 9%, respectively). Cerebrovascular disorders were the most frequent NCs (60% of the patients had ischemic events and 21% had haemorrhages). Meningitis and cerebral abscess occurred in 16% and 3% of patients with NCs, respectively, and diffuse encephalopathy in 13%. Staphylococus aureus infection was the only factor associated with NCs, but only in NVE. During the study period there was a trend for increasing frequency of NCs in IE patients, probably associated to several factors: a decrease in IDUNVE, an increase in more aggressive nosocomial acquired NVE, and an increase in NVE caused by S. aureus. Mortality among patients with NCs (34%) was significantly higher than in IE patients without them (11%). During the study period mortality increased in patients with NVE and NCs.
    Journal of Neurology 10/2007; 254(9):1253-9. · 3.47 Impact Factor
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    Article: The magnitude of week 4 HCV RNA decay on pegylated interferon/ribavirin accurately predicts virological failure in patients with genotype 1.
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    ABSTRACT: Current stopping rules during pegylated interferon (peg-IFN)/ribavirin (RBV) treatment rely on week 12 HCV RNA response, but earlier identification of non-responders offers clinical and economic advantages. To evaluate, among 129 HCV-genotype-1-infected, treatment-naive patients receiving peg-IFN/RBV, the feasibility of predicting treatment failure using receiver operating characteristics (ROC) curves after measuring week 4 HCV RNA decreases, and to assess baseline predictors of not achieving sustained virological response (SVR). Peg-IFN-alpha2b was used in 84.5% of patients. Fifty-three (41%) reached SVR. The best cutoff value of HCV RNA decrease at week 4 to predict non-SVR corresponded to 1 log10 IU/ml: sensitivity and negative predictive value: 100%; specificity: 64%; positive predictive value: 66%; ROC curve area: 0.91 (95% confidence interval [CI]: 0.86-0.96). By applying this threshold, treatment could have been discontinued at week 4 in 64% of virological non-responders (49/76). By univariate analysis, baseline HCV RNA > 800,000 IU/ml (P = 0.029), older age (P = 0.011), and higher aspartate aminotransferase (AST) levels (P = 0.005) or AST/alanine aminotransferase ratio values (P = 0.04) were associated with failure. After multivariate analysis, only baseline HCV RNA >800,000 IU/ml (odds ratio [OR]: 2.12; 95% CI: 1.005-4.488; P = 0.048) and higher AST levels (OR: 1.01; 95% CI: 1.003-1.024; P = 0.011) remained statistically significant. The lack of > or = log10 IU/ml decrease in baseline HCV RNA at week 4 was 100% predictive of treatment failure, independently associated with HCV RNA > 800,000 IU/ml and higher AST levels.
    Antiviral therapy 01/2007; 12(3):401-6. · 3.16 Impact Factor
  • Article: Syncytial giant cell hepatitis in human immunodeficiency virus-infected patients with chronic hepatitis C: 2 cases and review of the literature.
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    ABSTRACT: Syncytial giant cell hepatitis (SGCH) among adult human immunodeficiency virus (HIV)-infected patients has been rarely described. Most cases have been reported in subjects coinfected with the hepatitis C virus (HCV), but its prevalence and outcome remain unknown. We performed a retrospective analysis of all cases of SGCH among 332 liver biopsies from HIV-infected patients seen at a tertiary center in Madrid, Spain, between 1984 and March 2004. Two hundred fifty specimens were obtained from HCV-coinfected patients. There were 2 cases of SGCH, leading to an observed overall prevalence of 0.6% (0.8% when considering only HCV-coinfected patients). In addition to histological changes secondary to chronic hepatitis C, the liver cords were replaced by syncytial giant cells with up to 30 nuclei. There was no histological evidence of measles (among paramyxoviruses) or herpes viruses group infections. In patient 1, there was a progressive clinical worsening after a 3-month course of prednisone, leading to liver failure and death. His postmortem liver biopsy showed more abundant giant hepatocytes accompanied with the development of a histologic pattern of severe fibrosing cholestatic hepatitis. The second patient received a prolonged course of pegylated interferon-alpha-2b and ribavirin with clearance of syncytial giant hepatocytes despite HCV-RNA persistence. SGCH is a rare histological finding among HIV-infected patients with chronic hepatitis C. Specific treatment with pegylated interferon and ribavirin can lead to histological resolution and biochemical improvement, even in the absence of HCV-RNA clearance.
    Human Pathlogy 11/2006; 37(10):1344-9. · 2.88 Impact Factor
  • Article: Successful pregnancy after orthotopic liver transplantation in a patient with HIV infection.
    Ana Moreno, Carmen Quereda, Rafael Bárcena
    New England Journal of Medicine 01/2006; 353(23):2517-8. · 53.30 Impact Factor
  • Article: Analysis of mortality and risk factors associated with native valve endocarditis in drug users: the importance of vegetation size.
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    ABSTRACT: Native valve endocarditis in drug-user patients had a microbiology, a frequency of involvement of different cardiac valves, and a prognosis that differ from those in non-drug users. A retrospective study of native valve endocarditis cases in intravenous drug users diagnosed from 1985 to 1999 in our institution was performed to analyze the inhospital mortality of drug users with native valve endocarditis and to identify factors predictive of mortality. All patients fulfilled the Duke's criteria for definite or probable endocarditis. Analysis of predictors of inhospital mortality was restricted to right-sided infective endocarditis (IE) with definite diagnosis and echocardiographic data. The following variables were analyzed: sex, HIV serostatus, CD4 cell count < 200/mm3, time of IE diagnosis (before 1993 or after 1993), previous valvulopathy, polymicrobial IE, fungal etiology (mixed or alone), neurological complication, arterial emboli, pulmonary emboli, congestive heart failure, vegetation size (VS) > 2 cm, and inhospital cardiac surgery. Logistic regression was used in a multivariate model to identify factors independently associated with mortality. Adjusted odds ratios (OR) and 95% CIs were examined. Four hundred ninety-three cases of IE were diagnosed in this period. Two hundred twenty cases of native valve endocarditis in intravenous drug users were identified. Fourteen cases in this group died (6%). Mean time from diagnosis to death was 18.5 +/- 15 days (range, 3-52). Vegetation size was available in 111 cases. Univariate analysis identified the following variables associated with inhospital mortality in right-sided cases: VS > 2 cm and fungal etiology. In multivariate analysis, the variables associated with mortality that achieved statistical significance were size of vegetation > 2 cm (P = .014, OR 10.2, 95% CI 1.6-78.0) and fungal etiology (P = .009, OR 46.2, 95% CI 2.4-1100.9). The main prognostic factors of inhospital mortality in right-sided IE in drug users in our series were VS > 2 cm and fungal etiology. The role of early surgery in these patients should be reevaluated.
    American heart journal 11/2005; 150(5):1099-106. · 4.65 Impact Factor
  • Article: HCV clearance and treatment outcome in genotype 1 HCV-monoinfected, HIV-coinfected and liver transplanted patients on peg-IFN-alpha-2b/ribavirin.
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    ABSTRACT: Differences in HCV-RNA clearance during therapy might explain the lower efficacy of peg-IFN/RBV in HIV/HCV-coinfection. There are limited data on HCV-RNA clearance and treatment outcomes in liver transplanted (LT) patients. To assess the rates of SVR and baseline predictors of failure after 48 weeks of weight-adjusted peg-IFN-alpha-2b/RBV in 120 patients with HCV genotype 1: 61 HCV-monoinfected, 40 HIV-coinfected and 19 LT-patients. Viral clearance was evaluated in patients completing 24 weeks of therapy (n=112, 93%). SVR was significantly lower in HIV-coinfection than in HCV-monoinfection or LT (18 vs. 39 vs. 42%, P<0.02). By multivariate analysis, HIV-coinfection (OR 3.048, 95% CI 1.133-8.196; P=0.027), baseline HCV-RNA over 800,000 IU/ml (OR 2.800; 95% CI 1.121-6.993, P=0.027) and higher AST values (OR 1.009; 95% CI 1.001-1.018; P=0.028) were significantly associated to failure. Despite similar baseline HCV load (5.67 vs. 5.75 vs. 5.90 log10 IU/ml), HIV-coinfection showed significantly lower HCV-RNA decreases than HCV-monoinfection at weeks 4 (P=0.015), 12 (P=0.015) and 24 (P=0.0003), and than LT at weeks 12 (P=0.003) and 24 (P=0.023). 36/60 subjects (60%) reaching EVR by week 12 obtained SVR vs. 3/60 (5%) who did not. HIV-coinfection was independently associated to treatment failure, and led to a significantly slower HCV-RNA clearance.
    Journal of Hepatology 11/2005; 43(5):783-90. · 9.26 Impact Factor
  • Article: Safe use of pegylated interferon/ribavirin in hepatitis C virus cirrhotic patients with hypersplenism after partial splenic embolization.
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    ABSTRACT: Partial splenic embolization (PSE) is a non-surgical alternative for the treatment of hypersplenism. Thrombocytopenia precludes the use of pegylated interferon (peg-IFN) and ribavirin in cirrhotic patients with hepatitis C virus (HCV). We aimed to evaluate the role of PSE as a procedure allowing combined HCV therapy in this setting. A retrospective analysis of the safety and rate of sustained virological response (SVR) after a full-dose course of peg-IFN plus ribavirin in eight HCV cirrhotic patients with severe hypersplenism undergoing PSE at a tertiary centre in Madrid, Spain, from May 2002 to August 2004. Six patients (75%) were in Child-Pugh class B (median score 7). PSE significantly improved the mean platelet (P = 0.012), leucocyte (P = 0.017) and haemoglobin (P = 0.035) levels, and prothrombin activity (P = 0.012). After a mean of 20 weeks after PSE all patients started weight-adjusted ribavirin plus peg-IFN-alpha2b (n = 6) or 180 microg/week of peg-IFN-alpha2a (n = 2). Six subjects (75%) completed therapy with no peg-IFN dose reductions; the dose of ribavirin was reduced in two patients reaching haemoglobin levels of less than 10 g/dl (one also received erythropoietin and granulocyte colony-stimulating factor because of neutrophil counts < 300 cells/microl). Three patients (38%) achieved SVR. Portal vein thrombosis was observed in 50% of patients, but did not preclude antiviral therapy. The pathogenic mechanism was multifactorial. It was successfully managed with anticoagulant therapy in two cases. PSE allowed the safe use of peg-IFN plus ribavirin in HCV cirrhotic patients with severe cytopenias who otherwise would never have been treated. The rate of SVR was 38%.
    European Journal of Gastroenterology & Hepatology 11/2005; 17(11):1157-64. · 1.76 Impact Factor
  • Article: Influence of liver fibrosis on highly active antiretroviral therapy-associated hepatotoxicity in patients with HIV and hepatitis C virus coinfection.
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    ABSTRACT: Coinfection with hepatitis C virus (HCV) and human immunodeficiency virus (HIV) is a known risk factor for hepatotoxicity in patients receiving highly active antiretroviral therapy (HAART). The aim of this study was to evaluate the role of HCV-related liver fibrosis in HAART-associated hepatotoxicity. In a prospective study involving 107 patients who underwent liver biopsy, fibrosis was graded according 5 stages, from F0 (no fibrosis) to F4 (cirrhosis). Hepatotoxicity was defined as an increase in levels of aspartate aminotransferase and alanine aminotransferase to >5 times the upper limit of normal, or a >3.5-fold increase if baseline levels were abnormal. The incidence of hepatotoxicity was compared with liver fibrosis stage and with time and composition of HAART. Overall, 27 patients (25%) had hepatotoxic events (5.1 events/100 person-years of therapy). The incidence was greater for patients with stage F3 or F4 fibrosis (38%) than for those with stage F1 or F2 fibrosis (15%; 7.6 vs. 3 events/100 person-years; relative risk, 2.75; 95% confidence interval, 1.08-6.97; P=.013). Duration of HCV infection, duration of HAART, diagnosis of acquired immunodeficiency syndrome, HCV load, HCV genotype, and nadir CD4(+) cell count did not affect the risk of hepatotoxicity. Of the 86 patients who received nonnucleoside reverse-transcriptase inhibitors (NNRTIs), 11 (13%) developed liver toxicity. In these patients, fibrosis stages F1 and F2 were associated with similar rates of toxicity (3 events/100 person-years for patients who received nevirapine, 3.3 events/100 person-years for those who received efavirenz, and 3.4 events/100 person-years for those who received non-NNRTIs). There was a greater incidence among patients with F3 or F4 fibrosis who received NNRTIs (11.7 events/100 person-years for patients who received nevirapine, and 8.6 events/100 person-years for those who received efavirenz), compared with those who received non-NNRTIs (4 events/100 person-years). HAART-associated hepatotoxicity correlates with liver histological stage in patients coinfected with HIV and HCV. There was no difference in hepatotoxicity risk for different antiretroviral therapies in patients with mild-to-moderate fibrosis.
    Clinical Infectious Diseases 03/2005; 40(4):588-93. · 9.15 Impact Factor
  • Article: Liver transplantation in HIV-infected recipients.
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    ABSTRACT: Liver transplantation is being evaluated as a therapeutic option for human immunodeficiency virus (HIV)-infected patients with end-stage liver disease, but experience is still scarce. We describe the outcome of 4 HIV-infected patients who underwent liver transplantation in our hospital between July 2002 and April 2003. HIV-infected liver transplant recipients meet the same standard criteria for transplantation as do HIV-negative candidates. In addition, HIV infected persons are required to have a CD4 T-cell count greater than 100/mL (CD4 T-cells are targets for HIV infection). Immunosuppressive regimens, perioperative surgical prophylaxis, and prophylaxis for opportunistic infections are standard in the Liver Transplantation Unit in our hospital. Four patients, including 3 former intravenous drug users, received a liver transplant (2 from deceased donors and 2 from living donors), with a median follow-up of 510 days. Three patients (75%) are alive, with 1 death occurring 17 months posttransplantation in a patient who developed fibrosing cholestatic hepatitis. Rejection occurred in 1 patient, and was managed with no complications. Hepatitis C virus (HCV) recurrence occurred in 3 patients. HIV-infection has remained under control with antiretroviral treatment. A combination of 3 nucleoside analogs was used in 3 patients, with no need for drug adjustments. No opportunistic infections or other significant infectious complications developed. In conclusion, orthotopic liver transplantation seems a safe therapeutic option in the short term for HIV-infected persons with end stage liver disease, including patients with a history of drug abuse. If indicated, an antiretroviral regimen consisting of 3 nucleosides could be used to avoid interactions with immunosuppressive drugs.
    Liver Transplantation 02/2005; 11(1):76-81. · 3.39 Impact Factor
  • Article: Partial splenic embolization for the treatment of hypersplenism in cirrhotic HIV/HCV patients prior to pegylated interferon and ribavirin.
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    ABSTRACT: Partial splenic embolization (PSE), a non-surgical treatment for hypersplenism, has also been reported to improve hepatic function. As severe thrombocytopaenia or leukopaenia contraindicate the use of combined therapy with pegylated interferons (PEG-IFNs) and ribavirin (RBV) in HCV-related cirrhosis, we evaluated, from July 2002 to October 2003, the safety and effectiveness of PSE as a procedure to allow therapy for HCV in three Child-Pugh class B cirrhotic patients with hypersplenism and HIV co-infection. HCV genotypes were 1b (n=2) and 3a (n=1). Severe thrombocytopaenia (in all) and leukopaenia (in two) precluded therapy for HCV. PSE was successfully performed in all with a mean infarcted area of 80%, leading to a significant increase in platelet and leukocyte counts that allowed therapy with weight-adjusted RBV and PEG-IFN-alpha-2b (patients 1 and 3) or 180 microg of PEG-IFN-alpha-2a (patient 2) 8 weeks after the procedure. Moderate pain, well controlled with conservative measures, followed PSE in 100% of cases, but during follow-up (mean 422 days) there were no infectious complications or liver decompensation episodes. Although preliminary, these results suggest the potential role of PSE in HIV/HCV-cirrhotic subjects with hypersplenism as a procedure to allow the use of combined PEG-IFN and RBV.
    Antiviral therapy 01/2005; 9(6):1027-30. · 3.16 Impact Factor
  • Article: [Liver transplantation in patients with HIV infection: a reality in 2004].
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    ABSTRACT: According to current estimates, there are 60,000 to 80,000 HIV and HCV coinfected individuals in Spain, and 5,000 to 10,000 HIV and HBV coinfected individuals. Among these patients, 10% to 15% have liver cirrhosis. Thus, end-stage liver disease is one of the major causes of death in our country. Liver transplantation is the only therapeutic option for these patients. Accumulated experience in North America and Europe in the last five years indicates that three-year survival in HIV-positive liver transplant recipients is similar to that of HIV-negative recipients. The selection criteria for HIV transplant candidates includes the following: no history of opportunistic infections, CD4 lymphocyte count higher than 100 cells/mm3, and HIV viral load suppressible with antiretroviral treatment. In Spain, where the majority of patients are former drug abusers, complete abstinence from heroin or cocaine use during two years is also required, with the possibility of the patient being in a methadone program. To date 26 hepatic transplants have been performed in the same number of patients, with only two deaths (7%) after a median follow-up of eight months (1-28). The main problems in the post-transplantation period in all the series has been recurrent HCV infection, which is the principle cause of post-transplantation mortality, and pharmacokinetic and pharmacodynamic interactions between the antiretroviral and immunosuppressive agents. There is little experience with pegylated interferon and ribavirin treatment in this population.
    Enfermedades Infecciosas y Microbiología Clínica 12/2004; 22(9):529-38. · 1.49 Impact Factor
  • Article: CD4 cell recovery during successful antiretroviral therapy in naive HIV-infected patients: the role of intravenous drug use.
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    ABSTRACT: We evaluated the impact of HIV risk practice on immune reconstitution in a prospective cohort of 288 patients (176 former injecting drug users) who maintained complete virus suppression for more than 24 months. Significant differences in CD4 cell counts at 6 and 24 months were detected. Multivariate analysis showed that drug use was an independent predictor of poor immunological recovery. Injection drug abuse impairs short and long-term CD4 cell recovery in HIV-positive patients initiating successful highly active antiretroviral therapy.
    AIDS 12/2004; 18(16):2210-2. · 6.24 Impact Factor
  • Article: The role of liver biopsy in the management of chronic hepatitis C in patients infected with the human immunodeficiency virus.
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    ABSTRACT: We evaluated the role of liver biopsy in the management of chronic hepatitis C in HIV-infected persons. Patients included had abnormal alanine transaminase (ALT) levels, detectable HCV RNA, and an interpretable liver biopsy. Demographic, epidemiologic, clinical, laboratory, histological, and therapeutic data were recorded in all patients. We also registered the clinical diagnosis of cirrhosis (previous to biopsy) and whether the biopsy result deferred the decision of initiating therapy. During the 33-month duration of the study, 112 patients were included. The degree of fibrosis in liver biopsies was none or mild (F0 or F1) in 47 patients (42%) and was significant or severe in 65 (58%). Seventeen patients (15%) had histological cirrhosis. By logistic regression analysis, only portal hypertension (odds ratio [95% confidence interval], 5.3 [1.05-25.9], P = 0.04) was independently associated with significant fibrosis. Overall, cirrhosis was predicted before biopsy in 29 patients (26%) by the caregiving physician, but only 8 of these were confirmed histologically. The clinical prediction of cirrhosis before biopsy had a sensitivity of 47%, a specificity of 78%, a positive predictive value of 28%, and a negative predictive value of 89%. Histological findings changed the decision to initiate HCV therapy in 19 patients (17%) because of little or no fibrosis. Liver biopsy is a useful tool in the management of HCV-HIV-coinfected persons. In addition to allowing grading and staging of the disease far better than any other method or combination of methods, it is important for making management decisions for patients coinfected with HCV and HIV.
    Human Pathlogy 10/2004; 35(9):1083-7. · 2.88 Impact Factor
  • Article: High rate of didanosine-related mitochondrial toxicity in HIV/HCV-coinfected patients receiving ribavirin.
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    ABSTRACT: Nucleoside analogues may induce mitochondrial toxicity, particularly didanosine. Ribavirin increases didanosine exposure, which might be clinically relevant when coadministered in HIV/HCV-coinfected patients. To evaluate, among 89 patients receiving highly active antiretroviral therapy (HAART) and therapy for chronic hepatitis C, clinically relevant mitochondrial toxicity in those treated with concomitant ribavirin and didanosine (n=35, 39%). From January 2000 to July 2002 longitudinal analysis of the incidence and clinical course of didanosine-related hyperamylasaemia, pancreatitis, hyperlactataemia/lactic acidosis or neuropathy. Risk factors were evaluated using univariate and multivariate Cox's proportional hazards model. Among 35 patients who received concomitant didanosine (400 mg/day in 86%) and ribavirin (> or = 10 mg/kg/day in 91%), 20 (57%) developed one or more adverse events after a mean of 87 days. Most frequent laboratory abnormalities were hyperamylasaemia (18 patients, 51%) and hyperlactataemia (eight patients, 23%). Acute pancreatitis and symptomatic hyperlactataemia developed in 10 (28%) and six (17%) patients, respectively. Two patients (6%) with pancreatitis and severe lactic acidosis died; the other patients recovered uneventfully despite continuation of anti-HCV therapy in 83% after didanosine withdrawal in 40%. In the Cox's model higher baseline amylase levels (HR: 1.04, 95% CI: 1.02-1.06, P=0.001) and three nucleoside reverse transcriptase inhibitor-based HAART (HR: 5.3, 95% CI: 1.73-16.24, P=0.003) were significantly associated to toxicity. The coadministration of didanosine and ribavirin should be avoided in HIV/HCV-coinfected patients, due to a high rate of clinically significant toxicity, particularly in triple nucleoside-based HAART. Amylase levels should be strictly monitored, especially if elevated at baseline.
    Antiviral therapy 03/2004; 9(1):133-8. · 3.16 Impact Factor
  • Article: Incidence and predictors of severe liver fibrosis in human immunodeficiency virus-infected patients with chronic hepatitis C: a European collaborative study.
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    ABSTRACT: A study was performed in 10 European health care centers in which 914 patients coinfected with hepatitis C virus (HCV) and human immunodeficiency virus (HIV) who had elevated serum alanine aminotransferase (ALT) levels underwent liver biopsy during the period of 1992 through 2002. Overall, the METAVIR liver fibrosis stage was F0 in 10% of patients, F1 in 33%, F2 in 22%, F3 in 22%, and F4 in 13%. Predictors of severe liver fibrosis (METAVIR stage, F3 or F4) in multivariate analysis were age of >35 years (odds ratio [OR], 2.95; 95% confidence interval [CI], 2.08-4.18), alcohol consumption of >50 g/day (OR, 1.61; 95% CI, 1.1-2.35), and CD4+ T cell count of <500 cells/mm3 (OR, 1.43; 95% CI, 1.03-1.98). Forty-six percent of patients aged >40 years had severe liver fibrosis, compared with 15% of subjects aged <30 years. The use of antiretroviral therapy was not associated with the severity of liver fibrosis. In summary, severe liver fibrosis is frequently found in HCV-HIV-coinfected patients with elevated serum ALT levels, and its severity increases significantly with age. The rate of complications due to end-stage liver disease will inevitably increase in this population, for whom anti-HCV therapy should be considered a priority.
    Clinical Infectious Diseases 02/2004; 38(1):128-33. · 9.15 Impact Factor
  • Article: Focal monophasic demyelinating leukoencephalopathy in advanced HIV infection.
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    ABSTRACT: A multiple sclerosis (MS)-like illness has been reported in human immunodeficiency virus (HIV)-infected patients, usually in the early stages of HIV infection. We report 3 patients with advanced HIV infection (CD4 lymphocyte count under 200/mm(3)) presenting with monophasic focal leukoencephalopathy, in whom biopsy demonstrated demyelinating lesions compatible with acute MS lesions. In 1 patient, recently started on highly active antiretroviral therapy, MS-like disease could represent an immune reconstitution syndrome. The lesions were reversible in 2 patients, but rapidly fatal in the third patient. These cases show that an MS-like disease may present in advanced HIV infection as focal monophasic leukoencephalopathy with either a reversible or fulminating course, mimicking progressive multifocal leukoencephalopathy.
    European Neurology 02/2004; 52(1):36-41. · 1.81 Impact Factor
  • Article: Pegylated interferon alpha2b plus ribavirin for the treatment of chronic hepatitis C in HIV-infected patients.
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    ABSTRACT: Hepatitis C virus (HCV) and HIV coinfection constitutes an important epidemiological and clinical problem. We evaluated the safety and efficacy of Pegylated interferon alpha2b (Peg-IFN) and a fixed dose of ribavirin in the treatment of chronic hepatitis C in HIV coinfection. Open, prospective study in HCV-HIV coinfected patients with persistently elevated alanine aminotransferase (ALT) levels and a liver biopsy showing either portal or bridging fibrosis. Therapy included Peg-IFN (50 micro g weekly) with ribavirin 800 mg for 48 weeks. The primary end point was sustained virological response (SVR). Univariate and multivariate analyses were performed to determine factors associated with response. By intent-to-treat analysis, 11 of 35 patients (31%) reached SVR. SVR was significantly better for genotypes 2/3 than for genotype 1 (54% versus 21%; P < 0.05). By multivariate logistic regression analysis, only a non-1 genotype was an independent factor for SVR [odds ratio (OR), 6; 95% confidence interval (CI), 1.1-31.7; P < 0.005]. A decrease of at least 1.5 log10 HCV RNA at week 12 of therapy was highly predictive of SVR (OR, 49.9; 95% CI, 4.9-508.2; P < 0.001). Most patients developed adverse events, although only six patients (17%) discontinued treatment due to toxicity. The combination of low doses of Peg-IFN plus a fixed dose of ribavirin resulted in a rate of SVR similar to that obtained with higher doses of the drugs in HIV-infected patients and lower than those obtained in non-HIV patients. Response at week 12 may be useful to help guide therapy in HCV-HIV co-infected patients.
    AIDS 01/2004; 18(1):67-73. · 6.24 Impact Factor
  • Article: [Endocarditis due to Corynebacterium pseudodiphtheriticum].
    Enfermedades Infecciosas y Microbiología Clínica 03/2003; 21(2):117-9. · 1.49 Impact Factor
  • Article: Search for human herpesvirus 6 DNA in cerebrospinal fluid from AIDS patients with progressive multifocal leukoencephalopathy.
    Journal of NeuroVirology 03/2003; 9(1):136-7. · 2.31 Impact Factor