Arterial hypoxemia has been noted in patients with liver cirrhosis because of bronchial vessel dilatation. Cabenes et al. reported that bronchial hyperresponsiveness to the metacholine inhalation was observed in patients of left side heart failure, he suggested that one of the mechanism was bronchial vessel dilatation. We hypothesized that patients of liver cirrhosis might have bronchial hyperresponsiveness to metacholine inhalation due to portal hypertension. We evaluate the relationship between bronchial responsiveness and severity of liver cirrhosirs, severity of portal hypertension.

In the 22 patients of the liver cirrhosis with clinical portal hypertension metacholine provocation test was done and determined PC20 FEV1. We classified lifter cirrhosis according to Pugh- Child classification Esophagogastroscopies were performed for the evaluation of the relationship between bronchial hyperresponsiveness and severity of esophageal varix.

In the 22 cases of the liver cirrhosis with clinical portal hypertension. The causes of liver cirrhosis, alcoholic hepatitis was 9 cases. hepatitis B virus was 12 cases, hepatitis C virus was 1 case. and 151 cases (68.18%) of total 22 cases were positive in metacholine provocation test. In positive cases There was no significant relationship between PC20FEV1 and severity of liver cirrhosis which were classified by Pugh-Child classification or severity of esophageal varix(p<0.05).

we observed that bronchial responsiveness to metacholine increased in the patients of liver cirrhosis and there was no significant relationship between the severity of liver cirrhosis and the severity of esophageal varix.