Publications by authors named "Calinas F"

Article Synopsis
  • A study was conducted to assess the safety and efficacy of COVID-19 vaccinations in liver cirrhosis patients, three years into the pandemic, due to ongoing uncertainties in this demographic.
  • The research included 124 liver cirrhosis patients, focusing on their antibody responses post-vaccination over different time intervals, as well as any adverse effects experienced.
  • Results indicated that while 18% experienced mild adverse events, a significant portion had inadequate antibody responses over time, with factors like older age and type of vaccine linked to poorer outcomes.
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Primary biliary cholangitis is an autoimmune disease that mostly affects women. It is uncommon in women of childbearing age and the diagnosis during pregnancy is rare and can be challenging. Described here is a case of primary biliary cholangitis first manifesting during pregnancy, with the onset of pruritus, jaundice, biochemical liver abnormalities and positive antimitochondrial antibodies.

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Background: The current standard of treatment in primary biliary cholangitis (PBC) is ursodeoxycholic acid (UDCA), although a considerable proportion of patients show incomplete response resulting in disease progression.

Objective: This study aimed to assess the prevalence of incomplete response to UDCA and determine associated patients' characteristics.

Methods: Patients with PBC as main diagnosis were included from a national multicentric patient registry-Liver.

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Introduction: Liver cirrhosis is a prevalent disease in Portugal. Recent changes in alcohol consumption, as well as the wide use of direct-acting antivirals for hepatitis C since 2015, may be contributing to changes in the national burden of liver cirrhosis in the last few years.

Objectives: We aim to characterize the burden of cirrhosis in Portugal between 2010 and 2017.

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The liver is usually affected in advanced stages of lympho-proliferative diseases, but primary liver lymphomas (PLLs) are rare. The diagnosis is usually late, especially in patients without identifiable risk factors, with consequent worse prognosis. We report the case of a 59-year-old female with progressive worsening pain in the right hypochondrium and weight loss.

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Background And Aims: Transjugular intrahepatic portosystemic shunt (TIPS) is used for decompressing clinically significant portal hypertension. The aims of this study were to evaluate clinical outcomes and adverse events associated with this procedure.

Methods: Retrospective single-center study including 78 patients submitted to TIPS placement between January 2015 and November 2018.

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Introduction: most studies narrowly focus on pregnancy outcome comparisons between Wilson's disease (WD) patients on and off treatment. We aimed to identify menses irregularities in untreated WD, and to evaluate pregnancy outcomes in treated WD patients as compared to matched controls (with and without liver disease).

Methods: females with WD, hepatitis C (liver disease controls), and other gastrointestinal conditions (controls without liver disease) were identified at two tertiary hospital gastroenterology departments.

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Article Synopsis
  • Hepatitis C virus (HCV) varies greatly in its types and is widespread globally, creating a need for effective treatments that work quickly across all major genotypes.
  • The study evaluated the safety and effectiveness of a combination therapy called glecaprevir/pibrentasvir, administered for either 8 or 12 weeks, in patients with specific HCV genotypes and no cirrhosis through three clinical trials.
  • Results showed high rates of sustained virologic response (SVR12)—about 98% for 8 weeks and 99.5% for 12 weeks of treatment—indicating that the treatment was highly effective in clearing the virus in patients with HCV genotypes 2, 4,
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Introduction: Recent studies assessed the predictive value of liver transient elastography, combined or not with platelet count, for the presence of esophageal varices in patients with liver cirrhosis, and multiple cutoffs have been proposed. The Baveno VI consensus states that patients with compensated advanced chronic liver disease, liver stiffness <20 kPa, and a platelet count >150,000 have a very low risk of having varices requiring treatment and can avoid screening endoscopy. We aimed to validate this recommendation in a cohort of cirrhotic patients.

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High rates of sustained virologic response at post-treatment week 12 (SVR12) were achieved in six phase 3 trials of ombitasvir (OBV, an NS5A inhibitor), paritaprevir (an NS3/4A protease inhibitor) co-dosed with ritonavir (PTV/r) + dasabuvir (DSV, an NS5B RNA polymerase inhibitor) (ie, 3D regimen) with or without ribavirin (RBV) in adults with chronic genotype (GT) 1 hepatitis C virus (HCV) infection. We assessed whether time to first HCV RNA value below the lower limit of quantification in patients with and without cirrhosis was associated with achievement of SVR12. Data were analysed from GT1-infected patients enrolled in six phase 3 studies of 3D ± RBV.

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The interferon-free combination of once-daily faldaprevir 120 mg, twice-daily deleobuvir 600 mg, and weight-based ribavirin was evaluated in two Phase III studies (HCVerso1, HCVerso2) in hepatitis C virus genotype-1b-infected, treatment-naïve patients, including those ineligible for peginterferon (HCVerso2). Patients without cirrhosis were randomized to 16 weeks (Arm 1; n=208 HCVerso1, n=213 HCVerso2) or 24 weeks (Arm 2; n=211 in both studies) of faldaprevir + deleobuvir + ribavirin. Patients with compensated cirrhosis received open-label faldaprevir + deleobuvir + ribavirin for 24 weeks (Arm 3; n=51, n=72).

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The epidemiology of hepatitis B in Portugal is insufficiently characterized. We aimed to review the epidemiology of hepatitis B in Portugal since 1980. A literature review was performed in MEDLINE, Scielo, Web of Science, and the Portuguese Scientific Repository for studies containing 'Hepatitis B' and 'Portugal' published from 1980 to June 2016.

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Spontaneous clearance of hepatitis C virus during chronic infection is uncommon. We report the case of a patient who cleared hepatitis C virus during an episode of presumed alcoholic hepatitis. A brief discussion on the immunological aspects of chronic hepatitis C and the impact of alcohol consumption on it is presented as well.

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Background And Aims: More data on epidemiology of liver diseases in Europe are needed. We aimed to characterize hospital admissions for liver cirrhosis in Portugal during the past decade.

Patients And Methods: We analyzed all hospital admissions for cirrhosis in Portugal Mainland between 2003 and 2012 registered in the national Diagnosis-Related Group database.

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Background & Aims: The efficacy and tolerability of faldaprevir, a potent hepatitis C virus (HCV) NS3/4A protease inhibitor, plus peginterferon (PegIFN) and ribavirin (RBV) was assessed in a double-blind, placebo-controlled phase 3 study of treatment-naïve patients with HCV genotype-1 infection.

Methods: Patients were randomly assigned (1:2:2) to PegIFN/RBV plus: placebo (arm 1, n = 132) for 24 weeks; faldaprevir (120 mg, once daily) for 12 or 24 weeks (arm 2, n = 259); or faldaprevir (240 mg, once daily) for 12 weeks (arm 3, n = 261). In arms 2 and 3, patients with early treatment success (HCV-RNA <25 IU/ml at week 4 and undetectable at week 8) stopped all treatment at week 24.

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The number of hepatitis C virus (HCV) infections is projected to decline while those with advanced liver disease will increase. A modeling approach was used to forecast two treatment scenarios: (i) the impact of increased treatment efficacy while keeping the number of treated patients constant and (ii) increasing efficacy and treatment rate. This analysis suggests that successful diagnosis and treatment of a small proportion of patients can contribute significantly to the reduction of disease burden in the countries studied.

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The disease burden of hepatitis C virus (HCV) is expected to increase as the infected population ages. A modelling approach was used to estimate the total number of viremic infections, diagnosed, treated and new infections in 2013. In addition, the model was used to estimate the change in the total number of HCV infections, the disease progression and mortality in 2013-2030.

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Chronic infection with hepatitis C virus (HCV) is a leading indicator for liver disease. New treatment options are becoming available, and there is a need to characterize the epidemiology and disease burden of HCV. Data for prevalence, viremia, genotype, diagnosis and treatment were obtained through literature searches and expert consensus for 16 countries.

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Background/aims: The role of genotype and viremia were retrospectively evaluated on sustained virological response (SVR) rates in routine clinical practice.

Methodology: From 1907 patients with chronic hepatitis C proposed for treatment, we analysed 1380 (1124 naive and 256 treatment-experienced) with complete follow-up. Genotype and HCV RNA quantification were assayed by commercial tests.

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Hepatitis B (HBV) and hepatitis C (HCV) are the most common causes of chronic liver disease. Due to shared routes of transmission, co-infection with HBV and HCV is not uncommon. Higher rates of cirrhosis and hepatocelular carcinoma have been demonstrated in HBV/HCV co-infected patients.

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Objective: To assess the efficacy of lamivudine treatment on hepatitis B e antigen (HBeAg) and/or hepatitis B surface antigen (HBsAg) seroconversion, on other virological and serological markers of response including hepatitis B virus (HBV) DNA and serum aminotransferases, and the safety of lamivudine treatment in hepatitis B patients.

Patients: This phase III open-label study evaluated the virological and biochemical response to lamivudine in 70 Portuguese patients with HBeAg positive chronic hepatitis B. Patients were treated with lamivudine 100mg once daily for 12 months.

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The authors present a case report of synchronous gastric carcinoid and adenocarcinoma. The diagnosis of gastric carcinoid and its association with gastric carcinoma is discussed.

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