Infección crónica por virus de la hepatitis B antígeno e negativo. Manejo en función de puntos de corte de glutámico-pirúvica transaminasa y ácido desoxirribonucleico del virus de la hepatitis B / Hepatitis B virus e antigen-negative chronic infection. Treatment based on glutamic pyruvic transaminase and hepatitis B virus deoxyribonucleic acid cut-off values

Objetivos: Buscar puntos de corte de la glutámico-pirúvica transaminasa (GPT) y de ADN del virus de hepatitis B (ADN-VHB) al diagnóstico, en pacientes con infección crónica VHB antígeno e negativo (AgHBe(-)), que puedan ser predictores de la evolución, pronóstico y/o de la necesidad de terapia antiviral. Métodos: Estudio observacional de cohortes retrospectivo de pacientes diagnosticados de infección crónica por VHB AgHBe(-) (2005-2012). Se investigó un punto de corte de GPT normal al diagnóstico que predijera la alteración de esta en la evolución, de ADN-VHB basal que predijera la elevación de este por encima de 2.000UI/ml, y de GPT y ADN-VHB como predictores de la necesidad de tratamiento, mediante curvas ROC. Resultados: Se incluyeron 126 pacientes (seguimiento: 42,1±21,5meses), de los cuales 93 tenían GPT normal al diagnóstico. En el análisis de curvas ROC el punto de corte de ADN-VHB que mejor predijo la elevación de este por encima de 2.000UI/ml fue 900UI/ml (sensibilidad: 90%; especificidad: 88%; VPP: 79%; VPN: 100%; precisión diagnóstica: 89%), y el que mejor predijo la alteración de GPT normal al diagnóstico posteriormente elevada fue 25mU/ml (sensibilidad: 95,4%; especificidad: 81,6%; VPP: 67%; VPN: 96%; precisión diagnóstica: 80,6%). Los pacientes con GPT 26-40mU/ml al diagnóstico presentaron más complicaciones o necesidad de tratamiento que aquellos con GPT≤25mU/ml (p<0,05). La combinación de GPT y ADN-VHB que maximizó la necesidad de tratamiento fue 38mU/ml de GPT y 6.000UI/ml de ADN-VHB (sensibilidad: 75%; especificidad: 93,4%; VVP: 60%; VPN: 96,6%). Conclusión: Los pacientes VHB AgHBe(-) con GPT<25mU/ml y ADN-VHB<9.000UI/ml al diagnóstico presentan buena evolución y podrían no requerir un seguimiento tan estrecho en los primeros años desde el diagnóstico (AU)

Objectives: To identify glutamic pyruvic transaminase (GPT) and hepatitis B virus DNA (HBV-DNA) cut-off values at diagnosis in patients with hepatitis B virus e antigen-negative chronic infection (HBeAg(-)), which may be predictors of clinical course, prognosis and/or the need for antiviral therapy. Methods: A retrospective and observational cohort study of patients diagnosed with HBeAg(-) chronic infection (2005-2012). A normal GPT cut-off value at diagnosis that predicts abnormal GPT values in the clinical course of the infection, a baseline HBV-DNA cut-off value that predicts an increase in HBV-DNA above 2,000IU/ml, and GPT and HBV-DNA as predictors of the need for treatment were investigated using ROC curves. Results: 126 patients were enrolled (follow-up: 42.1±21.5months), 93 of which had normal GPT levels at diagnosis. In the ROC curve analysis, 900IU/ml was found to be the HBV-DNA cut-off value that best predicted this value's increase above 2,000IU/ml (sensitivity: 90%; specificity: 88%; PPV: 79%; NPV: 100%; diagnostic precision: 89%), while 25mU/ml was the normal GPT cut-off value at diagnosis that best predicted subsequently elevated GPT levels (sensitivity: 95.4%; specificity: 81.6%; PPV: 67%; NPV: 96%; diagnostic precision: 80.6%). Patients with GPT 26-40mU/ml at diagnosis presented with more complications or required more treatment than subjects with GPT≤25mU/ml (P<.05). The combined GPT and HBV-DNA values that elicited the highest treatment need were 38mU/ml of GPT and 6,000IU/ml of HBV-DNA (sensitivity: 75%; specificity: 93.4%; PPV: 60%; NPV: 96.6%). Conclusion: HBeAg(-) patients with GPT<25mU/ml and HBV-DNA<900IU/ml at diagnosis have positive outcomes and may not require such stringent follow-up in the first years after diagnosis (AU)

Hepatitis B virus e antigen-negative chronic infection. Treatment based on glutamic pyruvic transaminase and hepatitis B virus deoxyribonucleic acid cut-off values. / Infección crónica por virus de la hepatitis B antígeno e negativo. Manejo en función de puntos de corte de glutámico-pirúvica transaminasa y ácido desoxirribonucleico del virus de la hepatitis B.

OBJECTIVES: To identify glutamic pyruvic transaminase (GPT) and hepatitis B virus DNA (HBV-DNA) cut-off values at diagnosis in patients with hepatitis B virus e antigen-negative chronic infection (HBeAg(-)), which may be predictors of clinical course, prognosis and/or the need for antiviral therapy. METHODS: A retrospective and observational cohort study of patients diagnosed with HBeAg(-) chronic infection (2005-2012). A normal GPT cut-off value at diagnosis that predicts abnormal GPT values in the clinical course of the infection, a baseline HBV-DNA cut-off value that predicts an increase in HBV-DNA above 2,000IU/ml, and GPT and HBV-DNA as predictors of the need for treatment were investigated using ROC curves. RESULTS: 126 patients were enrolled (follow-up: 42.1±21.5months), 93 of which had normal GPT levels at diagnosis. In the ROC curve analysis, 900IU/ml was found to be the HBV-DNA cut-off value that best predicted this value's increase above 2,000IU/ml (sensitivity: 90%; specificity: 88%; PPV: 79%; NPV: 100%; diagnostic precision: 89%), while 25mU/ml was the normal GPT cut-off value at diagnosis that best predicted subsequently elevated GPT levels (sensitivity: 95.4%; specificity: 81.6%; PPV: 67%; NPV: 96%; diagnostic precision: 80.6%). Patients with GPT 26-40mU/ml at diagnosis presented with more complications or required more treatment than subjects with GPT≤25mU/ml (P<.05). The combined GPT and HBV-DNA values that elicited the highest treatment need were 38mU/ml of GPT and 6,000IU/ml of HBV-DNA (sensitivity: 75%; specificity: 93.4%; PPV: 60%; NPV: 96.6%). CONCLUSION: HBeAg(-) patients with GPT<25mU/ml and HBV-DNA<900IU/ml at diagnosis have positive outcomes and may not require such stringent follow-up in the first years after diagnosis.

Flow cytometry of duodenal intraepithelial lymphocytes improves diagnosis of celiac disease in difficult cases.

BACKGROUND: Diagnosis of celiac disease is difficult when the combined results of serology and histology are inconclusive. Studies using flow cytometry of intraepithelial lymphocytes (IELs) have found that celiac patients have increased numbers of γδ IELs, along with a decrease in CD3-CD103 + IELs. OBJECTIVE: The objective of this article is to assess the role of flow cytometric analysis of IELs in the diagnosis of celiac disease in difficult cases. METHODS: A total of 312 patients with suspicion of celiac disease were included in the study. Duodenal biopsy samples were used for histological assessment and for flow cytometric analysis of IELs. RESULTS: In 46 out of 312 cases (14.7%) the combination of serology and histology did not allow the confirmation or exclusion of celiac disease. HLA typing had been performed in 42 of these difficult cases. Taking into account HLA typing and the response to a gluten-free diet, celiac disease was excluded in 30 of these cases and confirmed in the remaining 12. Flow cytometric analysis of IELs allowed a correct diagnosis in 39 out of 42 difficult cases (92.8%) and had a sensitivity of 91.7% (95% CI: 61.5% to 99.8%) and a specificity of 93.3% (95% CI: 77.9% to 99.2%) for the diagnosis of celiac disease in this setting. CONCLUSION: Flow cytometric analysis of IELs is useful for the diagnosis of celiac disease in difficult cases.

Características y evolución de la infección crónica por virus de la hepatitis B antígeno e negativo / Characteristics and course of chronic hepatitis B e antigen-negative infection

OBJETIVO: Describir las características epidemiológicas, analíticas, histológicas y evolutivas de pacientes con infección crónica por VHB AgHBe-negativo. MATERIAL Y MÉTODOS: Estudio observacional de cohorte retrospectivo de pacientes diagnosticados de infección crónica VHB AgHBe-negativo (2005-2012) sin otras hepatopatías. RESULTADOS: Se incluyeron 138 pacientes con edad media de 40,5 ± 12,2 años, de los cuales el 54% eran mujeres. El 38% eran extranjeros, con incremento de estos en los últimos años (p < 0,001). Las transaminasas en el momento del diagnóstico eran normales en casi el 75% y el ADN-VHB < 2.000 UI/ml en el 56%. En los portadores inactivos existe una disminución progresiva de los niveles de ADN-VHB en el periodo de estudio. En el 47% se evaluó la fibrosis hepática por Fibroscan ® o biopsia hepática: el 55,4% resultó normal y el 6,1% reportó cirrosis. El 77,77% eran portadores inactivos. Precisaron tratamiento el 15,5% (20% por cirrosis y 80% por HBC AgHBe-negativo). Aclararon el AgHBs 5 pacientes (tasa anual 0,94%), presentando todos al diagnóstico ADN-VHB < 2.000 UI/ml. Cinco pacientes desarrollaron alguna complicación (3,6%), 4 de ellos carcinoma hepatocelular (CHC) (solo 2 presentaban cirrosis). Hubo un fallecimiento relacionado con el VHB (0,72%). CONCLUSIÓN: Entre los enfermos con infección crónica por VHB AgHBe-negativo predominan los portadores inactivos. Se produce un progresivo descenso de ADN-VHB en los primeros años tras el diagnóstico. Desarrollan poca morbimortalidad, especialmente si existe GPT normal y ADN-VHB bajo al diagnóstico. Un número no despreciable de pacientes precisa tratamiento. El CHC es la complicación más frecuente, incluso en pacientes sin cirrosis

OBJECTIVE: To describe the epidemiological, analytical and histological characteristics and clinical course of hepatitis B virus (HBV) carriers with negative HBe antigen. MATERIAL AND METHODS: Observational, retrospective cohort study of HBV carriers with negative HBe antigen (2005-2012), with no other causes of liver disease. RESULTS: One hundred and thirty-eight patients were included, with mean age 40.5 ± 12.2 years; 54% were women, and 38% were of foreign origin; the number of foreign patients significantly increased (P < .001) over the years. Transaminases were normal in nearly 75% and HBV-DNA was < 2,000 IU/ml in 56% of patients at diagnosis. There was a gradual decrease in HBV-DNA levels in inactive carriers over the study period. Fibrosis study was performed in 47% of patients by Fibroscan ® or liver biopsy: 55.4% normal histology and 6.1% cirrhosis. Just over three quarters of patients (77.77%) were inactive carriers. Treatment was required in 15.5% of patients (20% because of cirrhosis and 80% HBeAg-negative chronic hepatitis B). Five patients cleared HBsAg (annual rate .94%), all of whom presented HBV-DNA <2,000IU/ml at diagnosis. Five patients developed complications (3.6%), 4 of them hepatocellular carcinoma (HCC), of which only 2 had cirrhosis. There was 1 HBV-related death (.72%). CONCLUSION: Among HBV carriers with negative HBe antigen, inactive HBs-Ag carriers are predominant. HBV-DNA gradually decreases in the first few years after diagnosis. Morbidity and mortality are low, especially if glutamic pyruvic transaminase (GPT) is normal and HBV-DNA levels are low at diagnosis. Treatment is needed in a considerable number of patients. HCC is the most frequent complication, even in the absence of cirrhosis

Characteristics and course of chronic hepatitis B e antigen-negative infection. / Características y evolución de la infección crónica por virus de la hepatitis B antígeno e negativo.

OBJECTIVE: To describe the epidemiological, analytical and histological characteristics and clinical course of hepatitis B virus (HBV) carriers with negative HBe antigen. MATERIAL AND METHODS: Observational, retrospective cohort study of HBV carriers with negative HBe antigen (2005-2012), with no other causes of liver disease. RESULTS: One hundred and thirty-eight patients were included, with mean age 40.5±12.2 years; 54% were women, and 38% were of foreign origin; the number of foreign patients significantly increased (P<.001) over the years. Transaminases were normal in nearly 75% and HBV-DNA was <2,000IU/ml in 56% of patients at diagnosis. There was a gradual decrease in HBV-DNA levels in inactive carriers over the study period. Fibrosis study was performed in 47% of patients by Fibroscan® or liver biopsy: 55.4% normal histology and 6.1% cirrhosis. Just over three quarters of patients (77.77%) were inactive carriers. Treatment was required in 15.5% of patients (20% because of cirrhosis and 80% HBeAg-negative chronic hepatitis B). Five patients cleared HBsAg (annual rate .94%), all of whom presented HBV-DNA <2,000IU/ml at diagnosis. Five patients developed complications (3.6%), 4 of them hepatocellular carcinoma (HCC), of which only 2 had cirrhosis. There was 1 HBV-related death (.72%). CONCLUSION: Among HBV carriers with negative HBe antigen, inactive HBs-Ag carriers are predominant. HBV-DNA gradually decreases in the first few years after diagnosis. Morbidity and mortality are low, especially if glutamic pyruvic transaminase (GPT) is normal and HBV-DNA levels are low at diagnosis. Treatment is needed in a considerable number of patients. HCC is the most frequent complication, even in the absence of cirrhosis.

Características de los pacientes con infección crónica por el virus de la hepatitis B. Análisis de una serie de 474 pacientes / Characteristics of patients with chronic hepatitis B virus infection. analysis of a series of 474 patients

Objetivo El objetivo de nuestro estudio fue conocer las características clínicas, analíticas, serológicas e histológicas de los portadores crónicos del virus de la hepatitis B en nuestra área. Material y métodos Se realizó un estudio de cohortes retrospectivo que incluyó pacientes mayores de 13 años portadores crónicos del AgHBs, valorados en nuestro servicio desde enero de 2000.ResultadosSe incluyeron 474 enfermos. Al diagnóstico el 55,49% fueron varones, con una edad media de 41,05±13,93 y GPT normal en el 57,17% de los casos, siendo el 87,76% AgHBe(−). Las coinfecciones VHC y VHD ocurrieron en el 3,62 y 1,86%, respectivamente. Se realizó biopsia hepática al 31,22%, presentando el 63,51% grados variables de inflamación-fibrosis, y el 12,84%, cirrosis. Los pacientes AgHBe(+) en comparación con los (−) fueron más jóvenes y presentaron mayor actividad de la enfermedad de forma estadísticamente significativa. Los pacientes en fase inmunotolerante fueron los más infrecuentes (5,26%), y los que presentaban HBC AgHBe(−) los (..) (AU)

Objective To determine the clinical, laboratory, serological and histologic characteristics of chronic hepatitis B virus carriers in our environment. Material and methods A retrospective cohort study was performed that included chronic AgHBs carriers aged more than 13 years attending our service since January 2000.ResultsA total of 474 patients were included. At diagnosis, 55.49% were men, with a mean age of 41.05±13.93 years. Alanine aminotransferase (ALT) levels were within the normal range in 57.17% of the patients, and 87.76% were AgHBe(−). Hepatitis C and D virus coinfection was found in 3.62% and 1.86%, respectively. Liver biopsy was performed in 31.22%; varying grades of inflammation-fibrosis were found in 63.51% and cirrhosis was found in 12.84%. Compared with AgHBe(−) patients, those who were AgHBe(+) were younger and had greater disease activity. This (..) (AU)

[Characteristics of patients with chronic hepatitis B virus infection. analysis of a series of 474 patients]. / Características de los pacientes con infección crónica por el virus de la hepatitis B. Análisis de una serie de 474 pacientes.

OBJECTIVE: To determine the clinical, laboratory, serological and histologic characteristics of chronic hepatitis B virus carriers in our environment. MATERIAL AND METHODS: A retrospective cohort study was performed that included chronic AgHBs carriers aged more than 13 years attending our service since January 2000. RESULTS: A total of 474 patients were included. At diagnosis, 55.49% were men, with a mean age of 41.05±13.93 years. Alanine aminotransferase (ALT) levels were within the normal range in 57.17% of the patients, and 87.76% were AgHBe(-). Hepatitis C and D virus coinfection was found in 3.62% and 1.86%, respectively. Liver biopsy was performed in 31.22%; varying grades of inflammation-fibrosis were found in 63.51% and cirrhosis was found in 12.84%. Compared with AgHBe(-) patients, those who were AgHBe(+) were younger and had greater disease activity. This difference was statistically significant. Patients in the immunotolerant phase were the least numerous (5.26%), while AgHBe(-) patients with chronic HBV infection were the most numerous (48.32%). Patients in the immunoreactive phase showed greater histological involvement (16.67% cirrhosis). A familial history of chronic HBV was found in 21.52%. The percentage of non-Spanish patients increased in the last few years and accounted for 18.78%. CONCLUSION: Chronic HBV infection in our environment occurs mainly in middle-aged persons. GPT values are normal in more than 50%, most are AgHBe(-), and approximately half are inactive carriers. The incidence of chronic infection has increased in the non-Spanish population in recent years.

Eficacia y seguridad de la vacunación para la hepatitis A y la hepatitis B en pacientes con hepatopatía crónica / Efficacy and safety of vaccination against hepatitis A and B in patients with chronic liver disease

La vacunación para la hepatitis A y para la hepatitis B en pacientes con enfermedad hepática crónica (EHC) debe formar parte de su tratamiento habitual.ObjetivosValorar la eficacia y seguridad de la vacunación para los virus de la hepatitis A (VHA) y de la hepatitis B (VHB) en un grupo de pacientes con EHC y averiguar la existencia de parámetros predictivos de respuesta.Pacientes y métodosEstudio prospectivo y unicéntrico con 194 pacientes (123 varones y 71 mujeres; edad media de 48,9 ± 10,7 años) diagnosticados de EHC: 107 con hepatitis crónica (HC) y 87 con cirrosis hepática (CH), todos en estadio A de la escala Child-Pugh. La etiología más frecuente fue la infección por el virus de la hepatitis C seguida de la enólica. Recibieron la vacuna para el VHA (1.440 unidades en 2 dosis) los pacientes negativos para los anticuerpos contra el VHA y la vacuna para el VHB (20μg en 3 dosis) los pacientes con marcadores negativos para el VHB. Los que no respondieron adecuadamente a esta última vacuna recibieron una cuarta dosis doble de ésta. Treinta pacientes recibieron la vacuna combinada para ambos tipos de hepatitis (3 dosis).ResultadosRecibieron la vacuna para el VHA 60 pacientes (31%) y la de la hepatitis B, 150 (77%). Respondió el 91,6% para el VHA y el 57% para el VHB. Tras la cuarta dosis, la respuesta aumentó al 74%. La eficacia fue similar para el VHA en los pacientes con HC y en los pacientes con CH. La vacuna para el VHB fue menos eficaz en los pacientes con CH que en los pacientes con HC, y con tasas de respuesta significativamente menores en los pacientes con CH y algún episodio previo de descompensación. La vacuna combinada (30 pacientes) resultó altamente inmunogénica. No se registraron efectos secundarios con ninguna de las 3 vacunas.Conclusiones(..) (AU)

Vaccination to protect against hepatitis A and B should be part of the routine management of patients with chronic liver disease (CLD).ObjectivesTo evaluate the efficacy and safety of hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination in a group of patients with CLD and to assess the presence of factors predictive of response.Patients and methodsWe performed a prospective, single-center study in 194 patients (123 men, 71 women; mean age, 48.9±10.7 years) with CLD: 107 with chronic hepatitis (CH) and 87 with hepatic cirrhosis (HC), all Child-Pugh class A. The most frequent causes of CLD were HCV infection and alcohol. Patients negative for anti-HAV IgG received the HAV vaccination (1440 ELISA units in two doses) and those with negative HBV serology received the HBV vaccination ( three 20μg doses). Patients with inadequate response to the latter vaccine received an additional double dose. Thirty patients received a combination vaccine (three doses).ResultsSixty patients (31%) received the HAV vaccine and 150 (77%) patients received the HBV vaccine. Seroconversion was achieved by 91.6% of patients for HAV and by 57% of the patients for HBV. After the additional dose, the response increased to 74%. Efficacy was similar between CH and HC. HBV vaccination was less effective in HC than in CH and the seroconversion rate was significantly lower in patients with HC and previous decompensation. The combination vaccine (30 patients) was highly im munogenic. No adverse effects were registered.ConclusionsHAV vaccination has high efficacy in patients with CLD. Patients with HC respond weakly to HBV vaccination compared with those with CH and especially if there is prior decompensation. The combination vaccine seems particularly effective in patients with CLD. The three vaccines are safe(AU)

[Efficacy and safety of vaccination against hepatitis A and B in patients with chronic liver disease]. / Eficacia y seguridad de la vacunación para la hepatitis A y la hepatitis B en pacientes con hepatopatía crónica.

UNLABELLED: Vaccination to protect against hepatitis A and B should be part of the routine management of patients with chronic liver disease (CLD). OBJECTIVES: To evaluate the efficacy and safety of hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccination in a group of patients with CLD and to assess the presence of factors predictive of response. PATIENTS AND METHODS: We performed a prospective, single-center study in 194 patients (123 men, 71 women; mean age, 48.9+/-10.7 years) with CLD: 107 with chronic hepatitis (CH) and 87 with hepatic cirrhosis (HC), all Child-Pugh class A. The most frequent causes of CLD were HCV infection and alcohol. Patients negative for anti-HAV IgG received the HAV vaccination (1440 ELISA units in two doses) and those with negative HBV serology received the HBV vaccination ( three 20 microg doses). Patients with inadequate response to the latter vaccine received an additional double dose. Thirty patients received a combination vaccine (three doses). RESULTS: Sixty patients (31%) received the HAV vaccine and 150 (77%) patients received the HBV vaccine. Seroconversion was achieved by 91.6% of patients for HAV and by 57% of the patients for HBV. After the additional dose, the response increased to 74%. Efficacy was similar between CH and HC. HBV vaccination was less effective in HC than in CH and the seroconversion rate was significantly lower in patients with HC and previous decompensation. The combination vaccine (30 patients) was highly immunogenic. No adverse effects were registered. CONCLUSIONS: HAV vaccination has high efficacy in patients with CLD. Patients with HC respond weakly to HBV vaccination compared with those with CH and especially if there is prior decompensation. The combination vaccine seems particularly effective in patients with CLD. The three vaccines are safe.

[Cystic dystrophy of the duodenal wall. An underdiagnosed complication in aberrant pancreas]. / Distrofia quística de la pared duodenal. Una complicación infradiagnosticada del páncreas aberrante.

Cystic dystrophy of the duodenal wall is an uncommon complication of aberrant pancreas characterized by increased duodenal wall thickness associated with intraparietal cystic lesions. We present the case of a male patient with cystic dystrophy of the duodenal wall, which posed major diagnostic problems due to the difficulty of distinguishing this entity from tumors of the head of the pancreas. Echoendoscopy was useful in establishing the definitive diagnosis, allowing puncture-evacuation of the intracystic contents with resolution of obstructive symptoms.

Distrofia quística de la pared duodenal. Una complicación infradiagnosticada del páncreas aberrante / Cystic dystrophy of the duodenal wall. An underdiagnosed complication in aberrant pancreas

La distrofia quística duodenal es una rara complicación del páncreas aberrante, caracterizada por el aumento del grosor de la pared duodenal, asociado a la presencia de lesiones quísticas intraparietales. Presentamos el caso de un paciente con distrofia quística de la pared duodenal, ingresado por clínica relacionada con obstrucción duodenal, en el que se plantearon grandes problemas diagnósticos por la dificultad distinguirla de los tumores en la cabeza pancreática. La ecoendoscopia resultó de gran utilidad para establecer un diagnóstico definitivo, permitió la punción-evacuación del contenido intraquístico y así resolver el cuadro obstructivo

Cystic dystrophy of the duodenal wall is an uncommon complication of aberrant pancreas characterized by increased duodenal wall thickness associated with intraparietal cystic lesions. We present the case of a male patient with cystic dystrophy of the duodenal wall, which posed major diagnostic problems due to the difficulty of distinguishing this entity from tumors of the head of the pancreas. Echoendoscopy was useful in establishing the definitive diagnosis, allowing puncture-evacuation of the intracystic contents with resolution of obstructive symptoms