Introducción: la enfermedad celíaca es una enfermedad autoinmune provocada por la ingestión de gluten que afecta aproximadamente al 0,5%-1% de la población mundial. Las señales extraintestinales incluyen elevados niveles de alanina-aminotransferasa (ALT). Objetivo: evaluar los efectos de una dieta libre de gluten en los niveles ALT en pacientes con enfermedad celíaca. Métodos: este estudio transversal se llevó a cabo en la clínica ambulatoria de gastroenterología de un hospital universitario. Resultados: se incluyeron veintiséis pacientes con enfermedad celíaca con edad de 34,1 ± 11,4 años; 15,4% fueron hombres. Los sujetos del estudio tenían un nivel promedio de ALT de 54,6 ± 36,3 (mediana 40,5) U/L. Hubo una mayor proporción de individuos con hepatitis B en el grupo con ALT ≥50 U/L en comparación con sujetos con ALT <50 U/L. Entre los pacientes evaluados después del tratamiento con dieta libre de gluten se observó una reducción significativa de los valores de ALT (36,0 versus 31,0 U/l; p= 0,008). Conclusión: el treinta y cinco por ciento de los pacientes con enfermedad celíaca tenía ALT por encima del tercil superior. Se encontraron niveles más altos de ALT en pacientes con hepatitis viral B y en aquéllos que no se adhirieron a la dieta. Hubo una reducción de aminotransferasas como resultado de una dieta libre de gluten

Introduction: Celiac disease is an autoimmune disease triggered by ingestion of gluten. It affects approximately 0.5% to 1% of the world population. Extra intestinal manifestations include elevated alanine aminotransferase (ALT) levels. Objective: The objective of this study was to evaluate the effects of a gluten-free diet on ALT levels in patients with celiac disease. Methods: This cross-sectional study was conducted in the gastroenterology outpatient clinic of a university hospital. Results: Twenty-six patients with celiac disease were included. Average patient age was 34.1 ± 11.4 years, and 15.4% of the patients were men. Study subjects had a mean ALT level of 54.6 ± 36.3 U/L (median 40.5). There was a higher proportion of individuals with hepatitis B in the group with ALT ≥ 50 U/L than in the group of subjects with ALT < 50 U/L. Among patients tested after treatment with a gluten-free diet, we observed a significant reduction in ALT values (36.0 vs. 31.0 U/L; P = 0.008). Conclusion: Thirty-five percent of celiac disease patients had ALT levels above the upper tertile. Higher ALT levels were found in patients with viral hepatitis B and in those who do not adhere to the diet. There was a reduction of aminotransferases with a gluten-free diet

Introducción: hasta hace poco, el tratamiento estándar de oro para la hepatitis C eran los interferones pegilados (Peg-IFN) en combinación con la ribavirina (RBV). Con la llegada de nuevos fármacos, se propuso evaluar los resultados del tratamiento y a los pacientes en espera de la nueva terapia. Materiales y métodos: este estudio analítico transversal evaluó el resultado del tratamiento en individuos con hepatitis C crónica, y luego comparó a individuos que tienen experiencia en no responder al tratamiento basado en interferón (IFN) con individuos sin experiencia de tratamiento previo. Resultados: el estudio incluyó 192 individuos. Entre 87 pacientes sometidos a tratamiento, se observaron bajas tasas de respuesta viral sostenida (RVS). La comparación de los 105 pacientes no tratados previamente y los 87 que habían recibido tratamiento con IFN previamente evidenció que entre los pacientes en espera de nuevas terapias, los individuos sin tratamiento previo presentaron mayor proporción de genotipo 1 (68% frente a 49%; p = 0,028), menores niveles de ALT (91,1 ± 73,0 frente a 126,0 ± 73,40 U/L; p = 017), de AST (70,1 ± 51,3 frente a 89,7 ± 47,40 U/L; p = 050), de GGT (85,3 ± 85,1 frente a 148,4 ± 123,9 U/L; p = 0,007) y menor proporción de fibrosis significativa (24,3 frente a 83,3; p <0,001). Conclusiones: las tasas de RVS fueron bajas. La mayoría de posibles candidatos para el tratamiento por VHC no lo han tenido y son de genótipo-1 con histología leve

Introduction: Until recently, treatment with a combination of pegylated interferons (Peg-IFN) and ribavirin (RBV) was the gold standard treatment for hepatitis C. In anticipation of the arrival of new drugs, we evaluate current treatment outcomes and patients waiting for the new therapy. Materials and Methods: This cross-sectional analytical study evaluated treatment outcomes among chronic hepatitis C patients, and then compared chronic non-responders and treatment naïve patients who were given interferon based-treatment. Results: The study included 192 individuals among whom were 87 patients who received treatment. Among treated patients, we observed low rates of sustained viral response. A comparison of 105 treatment-naïve patients and 87 who had previously received IFN treatment showed that among patients waiting for new therapies, naïve individuals presented a higher proportion of genotype 1 (68% vs. 49%; p = 0.028) than did previously treated patients, lower ALT (91.1 ± 73.0 vs. 126.0 ± 73.40 U/L; p =017), lower AST (70.1 ± 51.3 vs. 89.7 ± 47.40 U/L; p = 050), lower GGT (85.3 ± 85.1 vs. 148.4 ± 123.9 U/L; p = 0.007) levels and a lower proportion of significant fibrosis (24.3% vs. 83.3%; p < 0.001). Conclusions: SVR rates were low. Among potential candidates for HCV treatment, the majority are naïve, genotype-1 with mild histology.

CONTEXTO E OBJETIVO: A doença celíaca é uma doença autoimune, com prevalência média de 1% na Europa e nos Estados Unidos. Em função da forte ascendência europeia no sul do Brasil, este estudo objetiva relatar a soroprevalência de doença celíaca em indivíduos com tireoidite autoimune.TIPO DE ESTUDO E LOCAL: Estudo transversal em um hospital público universitário.MÉTODOS: Este estudo transversal de prevalência incluiu pacientes com tireoidite autoimune que foram submetidos a testes de anticorpos antiendomísio e antitransglutaminase entre agosto de 2010 e julho de 2011.RESULTADOS: Foram incluídos 53 pacientes com tireoidite autoimune, 92,5% mulheres, com idade média de 49,0 ± 13,5 anos. Cinco (9,3%) pacientes apresentaram sorologia positiva para doença celíaca, sendo três (5,6%) com anticorpo antiendomísio positivo e dois (3,7%) com antitransglutaminase positivo. Nenhum paciente apresentou anemia e um apresentou diarreia. Apenas dois pacientes realizaram endoscopia: um com histologia normal e outro apresentou infiltrado linfocitário e atrofia vilositária.CONCLUSÕES: A prevalência de doença celíaca entre pacientes com doença autoimune da tireoide foi de 9,3%; um paciente queixou-se de diarreia e ninguém apresentou anemia. Em populações de risco, como é o caso de pacientes com tireoidite autoimune, a presença de diarreia ou anemia não devem ser utilizados como critério para indicar investigação de doença celíaca, que deve ser feita em todos os indivíduos com tireoidite autoimune devido a sua alta prevalência.

CONTEXT AND OBJECTIVE: Celiac disease is an autoimmune disorder with an average prevalence of 1% in Europe and the United States. Because of strong European ancestry in southern Brazil, this study aimed to evaluate the seroprevalence of celiac disease among autoimmune thyroiditis patients.DESIGN AND SETTING: Cross-sectional study in a public university hospital.METHODS: This cross-sectional prevalence study included autoimmune thyroiditis patients who were tested for anti-endomysial and anti-transglutaminase antibodies between August 2010 and July 2011.RESULTS: Fifty-three patients with autoimmune thyroiditis were included; 92.5% were women, with mean age of 49.0 ± 13.5 years. Five patients (9.3%) were serologically positive for celiac disease: three of them (5.6%) were reactive for anti-endomysial antibodies and two (3.7%) for anti-transglutaminase. None of them exhibited anemia and one presented diarrhea. Endoscopy was performed on two patients: one with normal histology and the other with lymphocytic infiltrate and villous atrophy.CONCLUSION: The prevalence of celiac disease among patients with autoimmune thyroid disease was 9.3%; one patient complained of diarrhea and none presented anemia. Among at-risk populations, like autoimmune thyroiditis patients, the presence of diarrhea or anemia should not be used as a criterion for indicating celiac disease investigation. This must be done for all autoimmune thyroiditis patients because of its high prevalence.

Context and objective: Protein-energy malnutrition is described Context and objective: Protein-energy malnutrition is described in 25-100% of patients with cirrhosis. The aim of this study was to evaluate the nutritional status of cirrhotic patients, to identify clinical and laboratory variables associated with moderate to severe malnutrition and to correlate them with cirrhosis prognostic factors (Child-Pugh Classification). Design and setting: This cross-sectional study evaluated cirrhotic individuals admitted to University Hospital from December 2011 to August 2012. Methods: Nutritional status was evaluated by Subjective Global Assessment (SGA), total lymphocyte count and serum albumin. Bivariate analysis was used to identify variables associated with Child C and with moderate to severe malnutrition in different nutritional classifications. Results: Sixty-seven patients were included (mean age 54.4 ± 11.7 years; 74.6% men). The mean MELD score was 14.5 ± 6.5, and almost 30% of the individuals were classified as Child C. With respect to nutritional status, 20.9% showed severe malnutrition by SGA, 14.9% malnutrition by total lymphocyte count, and 40.3% by albumin levels. In all methods employed, moderate to severe malnutrition was correlated with Child classification grade C. The rate of moderate to severe malnutrition by SGA was lower than that evidenced by laboratory methods. Nevertheless, SGA indicated a greater proportion of Child C patients with moderate to severe malnutrition. Conclusion: Due to the high prevalence of malnutrition and its correlation to the severity of cirrhosis, the nutritional evaluation ofcirrhotic patients is an essential step that can be performed through simple methods in routine hospital care.

Contexto y objetivo: la desnutrición proteico-calórica es reportada en 25 a 100 % de los pacientes con cirrosis. El objetivo de este estudio fue evaluar el estado nutricional de los pacientes cirróticos e identificar las variables clínicas y de laboratorio asociadas a la desnutrición moderada a severa y correlacionarlas con los factores de pronósticos de la cirrosis (clasificación de Child-Pugh). Diseño y montaje: Este es un estudio transversal que evaluó pacientes cirróticos ingresados en el Hospital Universitario de diciembre 2011 a agosto 2012. Métodos: El estado nutricional se consiguió mediante la Evaluación Subjetiva Global (ESG), recuento total de linfocitos (RTL) y albúmina sérica. Un análisis bivariado se utilizó para identificar las variables asociadas con el Child C y con la desnutrición Moderada-severa en diferentes clasificaciones nutricionales. Resultados: 67 pacientes fueron incluidos con una edad media de 54,4 ± 11,7 años, 74,6 % hombres. La media del registro MELD fue de 14,5 ± 6,5 y casi 30% de los individuos eran Child C. En cuanto al estado nutricional, el 20,9 % tenían desnutrición severa por ESG, 14,9 % por RTL, y el 40,3 % por albúmina. Para todos los métodos, la malnutrición moderada severa se correlacionó con Child C. La tasa de malnutrición moderada a grave detectada en la población por ESG fue más baja que la demostrada por los métodos de laboratorio. Sin embargo, el ESG indica una mayor proporción de pacientes Child C y con desnutrición moderada a severa. Conclusiones: Dada la alta prevalencia de desnutrición y su correlación con la gravedad de la cirrosis, la evaluación nutricional de los pacientes con cirrosis hepática es un paso esencial que se puede lograr a través de métodos simples y de rutina del hospital.

Introduction Chronic hepatitis B virus (HBV) infection and liver steatosis (LS) are the most common causes of chronic liver disease, and their coexistence is frequently observed in clinical practice. Although metabolic syndrome is the main cause of LS, it has not been associated with HBV infection. The aims of this study were to describe the lipid profile and prevalence of LS among HBV carriers and to identify the characteristics associated with LS in this group. Methods This retrospective cross-sectional study included hepatitis B surface antigen (HBsAg)-positive patients evaluated during 2011 and 2012. Results Of the 83 patients included, the mean age was 46.4±12.5 years, 53% were men, and 9.1% were hepatitis B e antigen (HBeAg) -positive. These patients exhibited the following lipid profile: total cholesterol = 175.4±38.8mg/dL, low-density lipoprotein (LDL) = 113.0±32.7mg/dL, and triglycerides = 91.1±45.2mg/dL. Their fasting glucose was 95.3±14.5g/dL, and fasting insulin was 6.1±5.9µIU/mL. Liver steatosis was observed on abdominal ultrasound in 11.3% of individuals. Factors associated with the presence of LS included higher levels of total cholesterol, prothrombin activity, fasting insulin, and body mass index (BMI) as well as lower levels of aspartate aminotransferase (AST). Conclusions These findings suggest that LS in patients with chronic HBV appears to be a consequence of metabolic alterations and insulin action rather than of viral factors.

Introdução: A razão sódio/potássio em amostra isolada de urina (Na/Ku) é uma ferramenta apropriada para identificar a excreção urinária de sódio < 78mEq/d. Foi estabelecido que essa razão é tão útil e acurada quanto a dosagem de sódio na urina de 24 horas (Nau24h), contudo nenhum estudo Latino Americano avaliou essa questão. O objetivo desse estudo foi avaliar a razão Na/Ku e compará-la a dosagem de Nau24h. Material e métodos: Estudo transversal que incluiu 20 pacientes com cirrose hepática descompensada em ascite. Resultados: A idade média foi de 56,1 ± 11,8 anos, 70% eram homens e 60% apresentaram Nau24h < 78 mEq/d. O grupo mau excretor de sódio apresentou maior escore MELD (P = 0,002), creatinina (P = 0,029), AST (P = 0,027), bilirrubinas (P = 0,013), e também menor mediana de sódio em amostra isolada de urina (P = 0.001). Houve correlação positiva entre razão Na/Ku e Nau24h (r = 0,857; P < 0,001) e correlação negativa com MELD (r = 0,498; P = 0.025) e creatinina sérica (r =−0,498; P = 0,025). A AUROC da razão Na/Ku em predizer Nau24h < 78 mEq/d foi de 0,948 ± 0,046 e o cut-off clássico da razão Na/Ku (≤1.0) exibiu VPP = 70%, VPN = 90%, acurácia = 80%, sensibilidade = 88% e especificidade = 75%. Conclusão: Na/Ku ≤1 é sensível e específico e se correlaciona substancialmente com Nau24h, o que permite o uso desse teste na avaliação rotineira de pacientes com cirrose descompensada em ascite.

Introduction: The ‘‘spot’’ urine sodium/potassium (Na/Ku) ratio is a convenient tool to identify sodium excretion < 78 mequiv./d. It has been established that this ratio is as useful and accurate as 24-h urine sodium (Nau24h), but no Latin American study has evaluated this issue. The aim of this study is to evaluate the accuracy of the Na/Ku ratio and to compare it to Nau24h. Materials and methods: This cross-sectional study included 20 patients with decompensated liver cirrhosis and ascites. Results:Mean age was 56.1±11.8 years old, 70% were men and 60% presented Nau24h < 78 mequiv./d. Poor sodium excretion group presented higher MELD score (P = 0.002), creatinine (P = 0.029), AST (P = 0.027) and bilirubin (P = 0.013) levels, and also lower median spot sodium urine (P = 0.001). There was a high positive correlation between Na/Ku ratio and Nau24h (r = 0.857; P < 0.001) and negative correlation with MELD (r =−0.498; P = 0.025) and sérum creatinine (r =−0.498; P = 0.025). The AUROC of Na/Ku in predicting Nau24h < 78 mequiv./d was 0.948±0.046 and the classical Na/Ku ratio cut-off (≤1.0) showed PPV = 70%, NPV = 90%, accuracy = 80%, sensitivity = 88% and specificity = 75%. Conclusion: Na/Ku ≤1 is sensitive and specific, and substantially correlates with Nau24h, which enables the use of this test in the routine evaluation of patients with liver cirrhosis decompensated in ascites.

CONTEXTO E OBJETIVO: Peritonite bacteriana espontânea (PBE) é uma complicação grave que ocorre em 8-27% dos pacientes hospitalizados com cirrose hepática e ascite, e apresenta altas taxas de mortalidade. O objetivo deste estudo é identificar as características clínicas associadas à PBE.TIPO DE ESTUDO E LOCAL: Estudo transversal, conduzido em uma universidade pública.MÉTODOS: O estudo incluiu, consecutivamente, indivíduos com cirrose hepática e ascite entre setembro 2009 e março 2012. Foram incluídos 45 indivíduos com média de idade de 53,2 ± 12,3 anos, sendo 82,2% homens, 73,8% brancos, com MELD (Modelo para Doença Hepática Terminal) de 19,5 ± 7,2, e 33,3% com PBE. Os indivíduos foram divididos em dois grupos: PBE e controles.RESULTADOS: Quando se compararam os indivíduos com PBE aos controles, observou-se menor média de tempo de atividade da protrombina (TAP; 36,1 ± 16,0% versus47,1 ± 17,2%; P = 0,044) e menor mediana de gradiente albumina soro-ascite (GASA; 1,2 versus 1,7; P = 0,045). Houve tendência do grupo com PBE de apresentar maior média de MELD, sem significância estatística (22,2 ± 7,6 versus 17,9 ± 6,7; P = 0,067). Foi observada forte correlação positiva entre neutrófilos do líquido ascítico e contagem sérica de leucócitos (r = 0,501; P = 0,001) e correlação negativa de neutrófilos do líquido ascítico com TAP (r = -0,385; P = 0,011).CONCLUSÃO: Poucas características estão associadas à presença de PBE, em especial a disfunção hepática, o GASA e a leucocitose periférica.

CONTEXT AND OBJECTIVE: Spontaneous bacterial peritonitis (SBP) is a severe complication that occurs in 8-27% of hospitalized patients with liver cirrhosis and ascites, with high mortality rates. This study aimed to identify the clinical characteristics associated with SBP.DESIGN AND SETTING: Cross-sectional study, conducted in a public university.METHODS: The study consecutively included individuals with liver cirrhosis and ascites between September 2009 and March 2012. Forty-five patients were included: mean age 53.2 ± 12.3 years, 82.2% male, 73.8% Caucasian, mean Model of End-stage Liver Disease (MELD) score of 19.5 ± 7.2, and 33.3% with SBP. The subjects were divided into two groups: SBP and controls.RESULTS: Comparison between individuals with SBP and controls showed that those with SBP had lower mean prothrombin activity time (36.1 ± 16.0% versus 47.1 ± 17.2%; P = 0.044) and lower median serum-ascites albumin gradient (SAAG) (1.2 versus 1.7, P = 0.045). There was a tendency towards higher mean MELD in the SBP group, not significant (22.2 ± 7.6 versus 17.9 ± 6.7; P = 0.067). There was a strong positive correlation between the neutrophil count in ascitic fluid and serum leukocyte count (r = 0.501; P = 0.001) and a negative correlation between the neutrophil count in ascitic fluid with prothrombin activity time (r = -0.385; P = 0.011).CONCLUSION: A few characteristics are associated with the presence of SBP, especially liver dysfunction, SAAG and peripheral leukocytosis.