Publications by authors named "Gabriela P Coral"

Introduction And Aim: Liver transplantation plays an important role in treating hepatocellular carcinoma (HCC). However, diagnosis often occurs when the tumor size exceeds Milan criteria. In this context, locoregional treatments are frequently indicated.

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Article Synopsis
  • Antibody-mediated rejection is a growing concern in liver transplantation, specifically regarding donor-specific antibodies (DSAs) and their effects on graft survival, with a lack of research on pediatric populations.
  • A study involving 67 pediatric liver transplant recipients identified that 28.3% had pre-transplant DSAs, while 48.4% developed them post-transplant, and rejection episodes were confirmed in 13 patients.
  • The presence of post-transplant DSAs significantly increased the risk of rejection, underscoring the need to include DSA monitoring in the care of pediatric liver transplant patients.
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Objective: Primary biliary cholangitis is a chronic and progressive autoimmune liver disease, whose prognosis can be improved by normalizing alkaline phosphatase and bilirubin. While ursodeoxycholic acid (UDCA) is first line standard of care, approximately 40 % of patients exhibit incomplete response. We aimed to identify prognostic markers for deep response to UDCA therapy at presentation.

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Objective: To compare conventional transarterial chemoembolization (cTACE) and drug-eluting bead TACE (DEB-TACE) in terms of efficacy, survival, and adverse effects in patients with hepatocellular carcinoma who are not candidates for curative therapy.

Materials And Methods: This was a retrospective study of patients with hepatocellular carcinoma who underwent cTACE or DEB-TACE for palliative treatment between January 2009 and December 2021. The Kaplan-Meier method was used for survival analysis.

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Background: Spontaneous regression (SR) is defined as the partial or complete disappearance of a tumor, in the absence of a specific treatment. Evidence of the SR in hepatocellular carcinoma (HCC) is rare.

Objective: The authors aimed to review all the cases of SR of HCC in two reference centers of Southern Brazil, highlighting the main characteristics.

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Background: Ursodeoxycholic acid (UDCA) is the standard treatment for primary biliary cholangitis (PBC), but a significant proportion of patients do not respond adequately, leading to increased risk of adverse outcomes. This study aims to develop a new and straightforward predictive score to identify PBC patients likely to achieve a complete response to UDCA.

Methods: A logistic regression analysis was conducted using a derivation cohort of PBC patients to identify pre-treatment variables associated with response to UDCA.

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Objective: To evaluate the degree of tumor necrosis after transarterial chemoembolization (TACE), used as a bridging therapy in patients awaiting liver transplantation, and its effect on survival.

Materials And Methods: This was a retrospective cohort study involving 118 patients submitted to TACE prior to liver transplantation, after which the degree of tumor necrosis in the explant and post-transplant survival were evaluated.

Results: Total necrosis of the neoplastic nodule in the explant was observed in 76 patients (64.

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Hepatocellular carcinoma (HCC) is the third most common cause of cancer-related mortality worldwide. The Brazilian Society of Hepatology (SBH) published in 2020 the updated recommendations for the diagnosis and treatment of HCC. Since then, new data have emerged in the literature, including new drugs approved for the systemic treatment of HCC that were not available at the time.

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Article Synopsis
  • PBC and AIH/PBC are linked to an increased risk of hepatocellular carcinoma (HCC) and extra-hepatic malignancy (EHM), prompting a study to identify cancer risk factors in these patients.
  • The study analyzed data from 752 PBC patients, finding 87 cancer cases, including 20 HCC and 67 EHM, with notable associations between HCC and factors like cirrhosis, smoking, and certain medications.
  • Cirrhosis, obesity, and past azathioprine therapy were identified as independent risk factors for HCC, while Sjogren syndrome and psoriasis correlated with EHM; overall, EHM prevalence was higher in PBC patients compared to HCC.
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Cirrhosis is an emerging major cause of the development of hepatocellular carcinoma (HCC), but in non-alcoholic fatty liver disease (NAFLD), up to 50% of patients with HCC had no clinical or histological evidence of cirrhosis. It is currently challenging to propose general recommendations for screening patients with NAFLD without cirrhosis, and each patient should be evaluated on a case-by-case basis based on the profile of specific risk factors identified. For HCC screening in NAFLD, a valid precision-based screening is needed.

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Background: Cholangiocarcinoma (CC) is a rare tumor that arises from the epithelium of the bile ducts. It is classified according to anatomic location as intrahepatic, perihilar, and distal. Intrahepatic CC (ICC) is rare in patients with cirrhosis due to causes other than primary sclerosing cholangitis.

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Background: Response to ursodeoxycholic acid (UDCA) in primary biliary cholangitis (PBC) has been traditionally assessed 1 to 2 years after treatment initiation. With the development of new drugs, some patients may benefit from an earlier introduction of second-line therapies.

Aims: This study aims to identify whether well-validated response criteria could correctly identify individuals likely to benefit from add-on second-line therapy at 6 months.

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Background: Non-alcoholic fatty liver disease (NAFLD) has become a challenge in public health, as the prevalence of obesity and overweight has been increasing. It has been observed that serum ferritin (SF) levels are commonly elevated in NAFLD patients.

Purpose: To assess the relationship between SF levels and NAFLD, exploring the role of SF as a non-invasive marker of NAFLD.

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Background And Aim: FAST score has a good performance for diagnosing the composite of NASH + NAS ≥ 4 + F ≥ 2. However, it has not been evaluated in Latin American individuals with nonalcoholic fatty liver disease (NAFLD). We aimed to analyze the performance of the FAST score in a Brazilian NAFLD population.

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Objective: Nonalcoholic fatty liver disease is the most prevalent cause of chronic liver disease worldwide. Nonalcoholic steatohepatitis is associated with increased mortality rates due to the liver and cardiovascular diseases. The gold standard for discriminating nonalcoholic fatty liver disease activity and staging is the anatomopathological examination, which is an invasive method.

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Background: Primary sclerosing cholangitis (PSC) is associated with a broad phenotypic spectrum in different populations from diverse ethnic and racial backgrounds. This study aimed to describe the clinical characteristics and outcomes of PSC in a multicenter cohort of patients from Brazil.

Methods: Data from the Brazilian Cholestasis Study Group were retrospectively reviewed to assess demographic information and clinical characteristics of PSC, as well as the outcomes, such as transplantation-free survival.

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Article Synopsis
  • This study focuses on primary biliary cholangitis (PBC) in non-white populations, specifically analyzing Brazilian patients to assess their clinical features and treatment outcomes.
  • The research included 562 predominantly female patients, revealing that after an average follow-up of 6.2 years, a significant portion experienced advanced liver disease, and most were treated with ursodeoxycholic acid (UDCA), with some requiring additional treatments.
  • Findings indicate that while PBC features in Brazilian patients are similar to those in Caucasian and Asian populations, the response to UDCA therapy was lower than expected and varied widely, highlighting the need for standardization in treatment evaluation.
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Background: Non-alcoholic fatty liver disease (NAFLD) is the most prevalent liver disease in the world, and its prevalence is increasing alongside obesity. In United States, NAFLD is already the second leading cause of liver transplantation. The spectrum of the disease ranges from simple steatosis, which has a benign course, to steatohepatitis, which may progress to cirrhosis and its complications.

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Background: Primary biliary cholangitis (PBC) is a chronic cholestatic liver disease in which anti-mitochondrial antibodies (AMA) are the diagnostic hallmark. Whether AMA-negative PBC patients represent a different phenotype of disease is highly debated.

Aims: The purpose of our study was to compare AMA-positive and AMA-negative PBC patients in a large non-white admixed Brazilian cohort.

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Hepatitis A virus (HAV) infection has been considered one of the leading causes of acute hepatitis. The aim of the present study was to estimate the prevalence of HAV among children and adolescents in a population-based study in the capitals of the States of the North, Southeast and South of Brazil and identify predictive factors for the infection. A multi-stage sampling was used to select subjects aged between 5-9 and 10-19 years.

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Background: Hepatocellular carcinoma (HCC) is the most frequent primary cancer of the liver and cirrhosis is considered a pre-malignant disease. In this context, the evolutionary sequence from low grade dysplastic nodule and high grade dysplastic nodule (HGDN) to early HCC and advanced HCC has been studied. The differential diagnosis between HGDN and early HCC is still a challenge, especially in needle biopsies.

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Aim: To assess the impact of the different stages of acute kidney injury (AKI) on the prognosis of patients hospitalized with decompensated cirrhosis.

Methods: This was a prospective cohort study of consecutive patients admitted in two tertiary hospitals in southern Brazil. Participants were considered eligible if they were admitted for acute decompensation of cirrhosis.

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Background: The protein-energy malnutrition alters the prognosis of patients with cirrhosis. Its prevalence may vary according to the etiology of liver disease, it´s severity and the evaluation of the method applied. The infection by the hepatitis C virus (HCV) and alcoholism are the main etiologies of cirrhosis and result in a significant morbidity and mortality.

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Background: Autoimmune hepatitis (AIH) is a chronic liver disease, characterized by necroinflammation and autoimmune etiology. Studies evaluating the characteristics of patients with AIH are scarce in Brazil.

Objective: Our objective was to evaluate the profile of patients with AIH in a specialized center in Southern Brazil and to verify factors related to treatment response.

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