CHANGES IN THE CARDIOPULMONARY SYSTEM OF CIRRHOTIC PATIENTS

Rodrigo Casales da Silva Vieira Mario Reis Álvares-da-Silva Álvaro Reischak de Oliveira Julia da Silveira Gross Renata Lopes Kruger Adriane Dal Bosco Norma Anair Possa Marroni Luiz Alberto Forgiarini Junior Alexandre Simões Dias About the authors

ABSTRACT

Introduction:

Cirrhosis causes changes in gas exchange and protein-calorie malnutrition in patients with liver disease.

Objective:

To evaluate and compare cardiopulmonary variables, handgrip strength (HGS) and body composition between cirrhotic patients with hepatitis C virus and healthy individuals, and to correlate maximal oxygen uptake (VO2MAX) with HGS.

Methods:

This survey is characterized as a case-control study composed of 36 participants (18 cirrhotic patients with HCV and 18 healthy individuals) of both sexes, older than 18 years. The palmar grip strength was measured by dynamometry using a mechanical handle dynamometer with adjustable handle. The ventilatory variables were evaluated by ergospirometry with a progressive load test on a cycloergometer. The body composition was measured by a level II cineanthropometry technician. Independent t test and Mann-Whitney test were used for comparison between groups and Spearman correlation for association between variables.

Results:

There were differences in maximal oxygen uptake 16.20 (11.60-18.55), median and interquartile range x 19.90 (16.27-26.85), ventilation 45.40 (36.45-54.20) x 63.40 (50.40-78.00), carbon dioxide production 785.88 (655.81-963.14) x 988.04 (826.93-1546.21), maximum heart rate (127.66 ± 23.26, mean and ± SD) x (146.29 ± 23.31), first ventilatory threshold (10.700 ± 3.19) x (14.912 ± 4.45) and second ventilatory threshold (14.16 ± 4.48) x (18.25 ± 5.54) between cirrhotic patients and controls, respectively. We found a moderate positive correlation between maximal oxygen uptake and handgrip strength (r=0.474, p=0.047)

Conclusion:

There are changes in cardiopulmonary variables and there is an association between VO2MAX and HGS in cirrhotic patients with hepatitis C virus.

Keywords:
hand strength; liver cirrhosis; oxygen consumption

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