Document Detail


Prolonged QTc interval and its relationship to autonomic cardiovascular reflexes in patients with cirrhosis.
MedLine Citation:
PMID:  11738100     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND/AIMS: We have previously shown that an abnormality in cardiac autonomic reflexes (AN) is an independent predictor of mortality in patients with chronic liver disease. Aim of this study was to determine whether there was an association between prolonged QTc interval and cardiac AN. METHODS: Cardiac AN and QTc interval were determined in 130 patients (Child A 42, B 53, C 35) with alcoholic and non-alcoholic liver disease. RESULTS: Prolonged QTc (>440ms) was seen in 58 (Child A 30%, B 46%, C 60%, P=0.04) patients. Autonomic tests were normal in 21%, borderline abnormal in 36% and definitely abnormal in 43%. QTc correlated with albumin (P<0.001), prothrombin time (P=0.003) and Child-Pugh score (P<0.001), but not with Valsalva ratio, heart rate variation with 6 breath/min breathing, tilt table or isometric exercise. By logistic regression analysis, QTc correlated only with Child-Pugh score (P<0.001). Mean QTc of 34 who died during the follow up was higher than survivors. Cox regression analysis showed that only Child-Pugh score and AN were independent predictors of mortality. CONCLUSIONS: Prolonged QTc seen in liver disease is independent of their cardiac autonomic function, but is related to the severity of the liver disease.
Authors:
L Puthumana; V Chaudhry; P J Thuluvath
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of hepatology     Volume:  35     ISSN:  0168-8278     ISO Abbreviation:  J. Hepatol.     Publication Date:  2001 Dec 
Date Detail:
Created Date:  2001-12-12     Completed Date:  2002-03-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8503886     Medline TA:  J Hepatol     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  733-8     Citation Subset:  IM    
Affiliation:
Department of Medicine and Neurology, School of Medicine, The Johns Hopkins University, Baltimore, MD 21205, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Autonomic Nervous System / physiopathology*
Cardiovascular System / physiopathology*
Electrocardiography*
Female
Heart Conduction System / physiopathology*
Humans
Liver Cirrhosis / mortality,  physiopathology*
Male
Middle Aged
Reflex*
Reflex, Abnormal
Survival Analysis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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