Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 5 de 5
Filter
1.
Rev. cuba. med ; 60(3): e1678, 2021. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1347511

ABSTRACT

Introducción: La enfermedad por depósito graso no alcohólica constituye una pandemia del mundo contemporáneo. Su espectro silente atraviesa estadios de cronicidad y puede llegar a la cirrosis hepática y sobre esta pudiera desarrollarse un hepatocarcinoma. No existen tratamientos y solo se puede actuar sobre los factores de riesgo. Objetivo: Evaluar el efecto citohepatoprotector y antifibrótico del propóleos rojo cubano oral en pacientes con esteatohepatitis no alcohólica. Métodos: Se realizó un estudio longitudinal prospectivo en pacientes seleccionados de las consultas de Gastroenterología, Endocrinología y Medicina Interna del Hospital Clínico Quirúrgico Hermanos Ameijeiras durante el periodo de abril 2017 a abril 2018. El universo de estudio fue de 120 pacientes con diagnóstico imagenológico de hígado graso. La muestra quedó conformada por 70 pacientes con diagnóstico de hígado graso, y que cumplieron criterios de inclusión y exclusión. Las pruebas estadísticas aplicadas fueron análisis de frecuencia y porcentaje para las variables demográficas. La prueba T para las muestras relacionadas evaluó el comportamiento enzimático al inicio y al final del tratamiento y los cambios elastográficos fueron analizados mediante test de Kappa y porcentaje. Resultados: Las variables bioquímicas estudiadas mostraron una disminución estadísticamente significativa al final del tratamiento. Los cambios elastográficos al final del estudio evidenciaron la efectividad del tratamiento, en el cual el 91,4 por ciento de los pacientes evolucionaron hacia el menor grado de fibrosis. Conclusiones: El propóleos rojo cubano demostró ser un apifármaco con acción citohepatoprotectora y antifibrótica de valor terapéutico(AU)


Introduction: Nonalcoholic fat deposition disease is a pandemic in the contemporary world. Its silent spectrum goes through stages of chronicity and it can reach liver cirrhosis and on this a hepatic carcinoma could develop. There are no treatments and medical handling can act on only risk factors. Objective: To evaluate cytohepatoprotective and antifibrotic effect of oral Cuban red propolis in patients with nonalcoholic steatohepatitis. Methods: A prospective longitudinal study was carried out in selected patients from the Gastroenterology, Endocrinology and Internal Medicine consultations at Hermanos Ameijeiras Clinical Surgical Hospital from April 2017 to April 2018. The study universe was 120 patients with imaging diagnosis of fatty liver. The sample consisted of 70 patients with fatty liver diagnosis, who met the inclusion and exclusion criteria. Frequency and percentage analysis for the demographic variables were the statistical tests applied. The T test for the related samples evaluated the enzymatic behavior at the beginning and at the end of the treatment and the elastography changes were analyzed using Kappa and percentage tests. Results: The biochemical variables studied showed statistically significant decrease at the end of the treatment, which evidenced the effectiveness of the treatment. 91.4 percent of the patients progressed to a lower degree of fibrosis. Conclusions: Cuban red propolis proved to be a therapeutic drug with cytohepathoprotective and antifibrotic action(AU)


Subject(s)
Humans , Elasticity Imaging Techniques/methods , Apitherapy , Non-alcoholic Fatty Liver Disease/drug therapy , Non-alcoholic Fatty Liver Disease/diagnostic imaging , Prospective Studies , Risk Factors , Longitudinal Studies
2.
Rev. habanera cienc. méd ; 19(1): 48-62, ene.-feb. 2020. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1099145

ABSTRACT

Introducción: La efectividad del programa nacional de inmunización ha impactado en la reducción de la incidencia del virus de la hepatitis B en Cuba; sin embargo, no es despreciable la cantidad de pacientes infectados crónicos, que por esta causa, se detectan en la práctica asistencial, aunque insuficientes los estudios epidemiológicos que los caracterizan. Objetivo: Describir las principales características clínicas, biomoleculares e inmunológicas de los pacientes con VHB crónica atendidos en el Instituto de Gastroenterología de Cuba. Materiales y métodos: 97 pacientes que tenían al menos un historial de 6 meses de infección crónica con VHB fueron reclutados en la propia institución desde enero 2016 hasta enero 2018. Se realizaron análisis estadísticos descriptivos para las características clínicas, estudios bioquímicos, virológicos, grado de dureza hepática (medido por elastografía transitoria) y terapia antiviral. Resultados: Todos los pacientes completaron el seguimiento; 61,9 por ciento eran varones y la mediana (rango) de edad fue de 46 (18-84) años. La media de tiempo desde el diagnóstico de la infección fue de 11,7 ± 8,9 años. El 61,9 por ciento tenían enfermedad inactiva sin fibrosis hepática o fibrosis ligera. Solamente el 2 por ciento eran negativos para el antígeno de superficie de la hepatitis B con el DNA cuantificable del VHB, el 81,4 por ciento tenían carga viral detectable y el 85,5 por ciento recibieron uno o más tratamientos antivirales, principalmente los análogos del nucleótido/sido. Conclusiones: Los pacientes con la infección crónica del VHB estudiados, en su mayoría se encuentran en fase inactiva de su enfermedad, sin evidencia significativa de daño hepático, con niveles detectables de viremia y han recibido algún tratamiento antiviral(AU)


Introduction: The effectiveness of the national immunization program has impacted on the reduction of the incidence of hepatitis B virus (HBV) infection in Cuba; however, the number of chronically infected patients is not negligible. These patients are diagnosed in the clinical practice, although the epidemiological studies that indicate the presence of the disease are insufficient. Objective: To describe the main clinical, biomolecular and immunological characteristics of patients with chronic hepatitis B virus infection treated at the National Institute of Gastroenterology, Havana, Cuba. Materials and methods: A total of 97 patients who had at least a 6-month history of chronic HBV infection were recruited at the above mentioned institution from January 2016 to January 2018. Descriptive statistical analyzes were performed to identify the clinical characteristics. Biochemical and virological studies, analysis of both liver stiffness values measured by transient elastography and use of antiviral therapy were also carried out. Results: All patients completed the follow-up. It was observed that 61,9 percent of them were male and the median (range) age was 46 (18-84) years. The mean time since the diagnosis of the infection was 11.7 ± 8,9 years. Inactive disease without liver fibrosis or light fibrosis was present in 61,9 percent. Only 2 percent were negative for hepatitis B surface antigen with quantitative analysis of HBV DNA; also, 81,4 percent of patients had detectable viral load and 85,5 percent received one or more antiviral treatments, mainly nucleotide analogues. Conclusions: The patients with chronic HBV infection studied are mostly in the inactive phase of their disease, without significant evidence of liver damage and detectable levels of viremia. All of them have received some antiviral treatment(AU)


Subject(s)
Humans , Male , Female , Hepatitis B, Chronic/immunology , Hepatitis B, Chronic/epidemiology
3.
Article in Spanish | LILACS | ID: biblio-1005027

ABSTRACT

El propósito del estudio fue evaluar el rendimiento diagnóstico de la elastografía esplénica y otros métodos no invasivos para detectar varices esofágicas de alto riesgo en pacientes con cirrosis. La verificación de la existencia de varices se realizó con endoscopia digestiva alta que es el gold standard. Se incluyeron 40 pacientes con reciente diagnóstico de cirrosis los cuales fueron evaluados con ecografía Doppler portal, elastografía hepática, elastografía esplénica, endoscopia y que cumplieron con los siguientes criterios: no antecedentes de sangrado digestivo, no tratamiento con betabloqueantes, no trombosis de la porta. Se realizó un estudio transversal, unicéntrico desde abril del 2017 hasta agosto del 2018. Los datos se presentan organizados en tablas de frecuencia. La comparación con el standard incluyo el uso de chi cuadrado y obtuvimos curvas ROC para presentar los datos de sensibilidad y especificidad. La elastografía demostró ser un buen estudio predictivo de la presencia de várices esofágicas (AUC 0,84 ; IC 95%: 0,71 - 0,97), seguido del diámetro del bazo (AUC 0,81 ; IC 95%: 0,66 - 0,96), mientras que el índice de congestividad (AUC 0,46 ; IC 95%: 0,27 - 0,64) y la elastografía hepática (AUC 0,39 ; IC 95%: 0,21 - 0,58) fueron los parámetros con menor precisión, el punto de corte de 3,8 m/seg en la elastografía esplénica fue capaz de identificar las varices de alto riesgo con una sensibilidad del 90,9% . La elastografía esplénica y el diámetro del bazo alcanzaron mayor rendimiento diagnostico en comparación a la elastografía hepática para identificar varices esofágicas de alto riesgo


The purpose of the study was to evaluate the diagnostic performance of splenic elastography and other non-invasive methods to detect high-risk esophageal varices in patients with cirrhosis. Verification of the existence of varicose veins was performed with upper digestive endoscopy, which is the gold standard. Forty patients with a recent diagnosis of cirrhosis were included, who were evaluated with portal Doppler ultrasound, hepatic elastography, splenic elastography, endoscopy and who fulfilled the following criteria: no history of digestive bleeding, no treatment with beta-blockers, no thrombosis of the portal. A cross-sectional, unicentric study was conducted from August 2018 to April 2017. The data are presented organized in frequency tables. The comparison with the standard included the use of chi square and we obtained ROC curves to present the sensitivity and specificity data. Elastography proved to be a good predictive study of the presence of esophageal varices (AUC 0.84, 95% CI: 0.71-0.97), followed by spleen diameter (AUC 0.81, 95% CI: 0.66 - 0.96), while the congestivity index (AUC 0.46, 95% CI: 0.27 - 0.64) and hepatic elastography (AUC 0.39, 95% CI: 0.21) - 0.58) were the parameters with less precision, the cutoff point of 3.8 m / sec in splenic elastography was able to identify high risk varicose veins with a sensitivity of 90.9%. Splenic elastography and spleen diameter achieved a higher diagnostic yield compared to hepatic elastography to identify high risk esophageal varices.


Subject(s)
Humans , Male , Middle Aged , Fibrosis , Esophageal and Gastric Varices , Elasticity Imaging Techniques , Chronic Disease , Diagnosis
4.
Rio de Janeiro; s.n; 2014. 91 f p.
Thesis in Portuguese | LILACS | ID: lil-751075

ABSTRACT

A fibrose hepática é o aspecto mais relevante e o mais importante determinante de morbimortalidade na hepatite C crônica (HCC). Historicamente, a biópsia hepática é o método de referência para avaliação da fibrose causada pela HCC, apesar de apresentar limitações. O estudo de marcadores não invasivos, que possam obviar a necessidade da biópsia, é uma área de constante interesse na hepatologia. Idealmente, a avaliação da fibrose hepática deveria ser acurada, simples, prontamente disponível, de baixo custo e informar sobre o prognóstico da patologia. Os marcadores não invasivos mais estudados são a elastografia hepática transitória (EHT) e os laboratoriais. A EHT já foi extensamente validada na HCC e está inserida na rotina de avaliação destes pacientes. Dentre os laboratoriais, existem diversos testes em continua experimentação e, até o momento, nenhum foi integrado à prática clínica no Brasil, embora já aplicados rotineiramente em outros países. O Enhanced Liver Fibrosis (ELF), um teste que dosa no soro ácido hialurônico, pró-peptídeo amino-terminal do colágeno tipo III e inibidor tissular da metaloproteinase 1, tem se mostrado bastante eficaz na detecção de fibrose hepática significativa e de cirrose na HCC. Neste estudo o ELF teve o seu desempenho avaliado em relação a biópsia hepática e demonstrou apresentar boa acurácia na detecção tanto de fibrose significativa quanto de cirrose. Na comparação com a EHT apresentou acurácia semelhante para estes mesmos desfechos, com significância estatística. No entanto, foi observada uma superestimação da fibrose com a utilização dos pontos de corte propostos pelo fabricante. Este achado está em acordo com a literatura, onde não há consenso sobre o melhor ponto de corte a ser empregado na prática clínica. Com a ampliação da casuística foi possível propor novos pontos de corte, através da análise clássica, com a biópsia hepática como padrão ouro...


Liver fibrosis is the most relevant issue concerning chronic hepatitis C (CHC) and determines its prognosis. Historically, liver biopsy has been the reference method for evaluating fibrosis related to CHC, though it presents many drawbacks. There is a continuing interest in the development of non invasive markers capable of replacing liver biopsy. The ideal surrogate for fibrosis evaluation should be accurate, simple, low cost and yield prognostic information. So far, the most well known non invasive methods are transient hepatic elastography (TE) and laboratory panels. TE has already been extensively validated and is integrated in patients routine. There is plenty of laboratory panels in continuing evaluation and some are already integrated in daily practice abroad. In Brasil, until the present moment, it is not a reality. Enhanced Liver Fibrosis (ELF) panel comprises the serum concentration of hyaluronic acid, tissue inhibitor of matrix metalloproteinases-1, and aminoterminal propeptide of type III procollagen and has demonstrated good performance in detecting significant fibrosis and cirrhosis in CHC patients. In the present study ELF had it’s performance evaluated against liver biopsy and obtained satisfactory accuracy in detecting significant fibrosis and cirrhosis. In comparison to TE no statistically significant diference was observed, for the same endpoints mentioned before. However, the application of manufacturer’s cutoff points produced overestimation of fibrosis stages. These findings are in accordance with other author’s results, in that there is no consensus so far on the most adequate cutoff points for main clinical end points. Enlarging the data permited calculating new cutoff points, through the classical statistical approach, using liver biopsy as the gold standard...


Subject(s)
Humans , Liver Cirrhosis/physiopathology , Liver/pathology , Hepatitis C, Chronic/diagnosis , Biomarkers/analysis , Liver Cirrhosis/diagnosis , Hepatitis C, Chronic/pathology , Minimally Invasive Surgical Procedures , Liver Function Tests/methods
5.
Rev. chil. radiol ; 17(4): 183-191, 2011. ilus, graf, tab
Article in Spanish | LILACS | ID: lil-627524

ABSTRACT

Background. Increase in visceral fat is associated to the development of fatty liver and liver fibrosis. Hepatic elastography is a novel noninvasive method for assessing liver fibrosis. Objective. To evaluate the relationship between visceral adipose tissue volume (VAT), subcutaneous adipose tissue volume (SAT) as measured by Magnetic Resonance Imaging (MRI) and transient elastography (TrE) values using ARFI (Acoustic Radiation Force Impulse) in type 2 Diabetic Mellitus patients (DM2). Methods. We included 20 DM2 patients (mean age: 62 years, range: 55-75, mean weight: 77.8 kg, range: 61.5-97). Patients underwent an MRI study in a Philips Intera 1.5T scanner. MR imaging protocol included a spectral excitation sequence centered on the fat peak. The sequence included 32 cross sections, 7mm thick, from the diaphragmatic cupula to the inferior border of the kidney. VAT was measured by using the semiautomatic Image J software. Each patient underwent a hepatic elastograpy (HE); 10 ARFI measurements were performed in the right hepatic lobe. Finally, a statistical analysis was performed by applying Pearson correlation between abdominal fat volumes and ARFI scores Results. Mean VAT was 2472 +/- 861 cc, (1173-4020 cc), whilst the mean ARFI was 1.62 ± 0.8 m/s, (0.8-3.4 m/s). Correlations obtained were r=0.08 between VAT and ARFI (p=0.72); 0.13 between SAT and ARFI (p=0.57), and -0.06 between (VAT+SAT) and ARFI (p=0.77). By subdividing the sample universe, we observed that the group with ARFI scores greater than 1.6 m/s (7 patients) had a correlation of 0.63 between VAT and ARFI (p=0.12); of 0.66 between SAT and ARFI (p=0.10), and of 0.94 between VAT+SAT and ARFI (p=0.001). In the subgroup with ARFI values inferior to 1.6 m/s (13 patients), the correlation was of 0.11 between VAT and ARFI (p=0.71); of 0.26 between SAT and ARFI (p=0.38), and of 0.32 between ( VAT+SAT) and ARFI (p=0.28). When adjusted for gender, ARFI scores greater than.


Introducción. La acumulación de grasa visceral se asocia al desarrollo de enfermedad hepática. La elastografía hepática es un método novedoso no invasivo para evaluar fibrosis hepática. Objetivo. Evaluar la relación entre el volumen de tejido adiposo visceral (VAT), volumen de tejido adiposo subcutáneo (SAT) medido por resonancia magnética (RM), con índices de elastografía hepática (EH) utilizando ARFI (fuerza de impulso de radiación acústica) en pacientes con Diabetes Mellitus tipo 2 (DM2). Métodos. Fueron incluidos 20 pacientes (edad promedio: 62 años, rango: 55-75 años, peso promedio: 77,8 kg, rango: 61,5-97 kg) con DM2. Los pacientes se sometieron a un examen de RM en un resonador Philips Intera 1.5T. Al protocolo de RM se agregó una secuencia de excitación espectral centrada en el peak de grasa. La secuencia incluyó 32 cortes transversales, grosor 7mm, desde la cúpula diafragmática hasta el borde inferior renal. En las imágenes se midió VAT utilizando el software Image J (freeware). En cada paciente se realizó una EH, utilizando ARFI con 10 medidas en lóbulo hepático derecho. Finalmente, se realizó un análisis estadístico a través de la correlación de Pearson entre los volúmenes de grasa abdominal y ARFI. Resultados. El promedio de VAT fue 2472 +/- 861 cc, (1173-4020 cc), el promedio de ARFI fue 1,62 ± 0,8 m/s, (0,8-3,4 m/s). Se obtuvieron correlaciones de r=-0,08 entre VAT y ARFI (p=0,72), de 0,13 entre SAT y ARFI (p=0,57), y de -0,06 entre (VAT+SAT) con ARFI (p=0,77). Subdividiendo el universo muestral, se encontró que el grupo con ARFI mayor que 1,6 m/s (7 pacientes) obtuvo una correlación de 0,63 entre VAT y ARFI (p=0,12), de 0,66 entre SAT y ARFI (p=0,10), y de 0,94 entre (VAT+SAT) con ARFI (p=0,001). En el subgrupo con ARFI inferior a 1,6 m/s (13 pacientes) la correlación fue 0,11 entre VAT y ARFI (p=0,71), de 0,26 entre SAT y ARFI (p=0,38), y de 0,32 entre (VAT+SAT) y ARFI (p=0,28).


Subject(s)
Humans , Male , Female , Middle Aged , /pathology , Elasticity Imaging Techniques/methods , Intra-Abdominal Fat/anatomy & histology , Liver/pathology , Liver Cirrhosis/diagnosis , Fatty Liver/diagnosis , Magnetic Resonance Imaging , Risk Assessment , Adipose Tissue/anatomy & histology
SELECTION OF CITATIONS
SEARCH DETAIL