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Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán

2005, Number 4

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Rev Invest Clin 2005; 57 (4)

Relationship between morphological diagnosis of NASH (Non-Alcoholic SteatoHepatitis) and liver function test in a group of patients with morbid obesity

Chavarría-Arciniega S, López-Alvarenga JC, Uribe-Uribe NO, Herrera-Hernández M, González-Barranco J

Language: Spanish
References: 26
Page: 505-512
PDF size: 134.33 Kb.


ABSTRACT

The non-alcoholic steato-hepatitis (NASH) is a common disorder in obese, type 2 diabetics, female and patients with dislipidaemia. Hepatic biochemical test are abnormal. Despite the lack of its own morphological characteristics, NASH can be differentiated from other pathologies, the gold standard for diagnosis is liver biopsy. Material and methods: We designed a retrolective, comparative, observational and cross-sectional study. Thirty-five obese subjects (11 men and 24 women) who underwent to bariatric surgery and liver biopsy were included. Data were taken from clinical files, such as anthropometric and biochemical test. Those who had clinical history of related alcohol ingestion or liver damage related to drugs were excluded. A experimented pathologist classified the biopsies according to Brunt classification. Liver slides were classified according to 1) presence of NASH; 2) Inflammation and 3) Fibrosis. Differences between groups were analysed by ANOVA and Spearman correlation. Results: We found differences between women (w) and men (m) for height (m: 1.71 ± 0.9 vs. w:1.60 ± 0.09m); weight (m:172.5 ± 39.1 vs. w:126.9 ± 24.1kg) and BMI (m:58.2 ± 9.8 vs. w:49.8 ± 9) , but not for NASH frequency. Nevertheless subjects with NASH (n = 29, 82.8%) were older than those without NASH (38.3 ± 9.6 vs. 29.5 ± 5.2) and had higher aminotrasferases serum levels (AST: 33.1 ± 19.2 vs. 23.7 ± 6.3 UL/L; ALT: 36.5 ± 19.8 vs. 20.3 ± 7.6UL/L). NASH patients and those with higher grade of histological inflammation had increment of transaminases and albumin levels. Fibrosis showed correlation only with AST (p = 0.020) and ALT (p = 0.002). Conclusion. The NASH frequency in patients who underwent to bariatric surgery for weight reduction is very high (82.8%) and exists correlation among liver test and histological findings but not with clinical because the clinical diagnosis is complicated.


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