Sirozlu hastalarda Q-T araliğindaki değişiklikler

Background and aims: A prolonged Q-T interval is a risk factor for cardiac arrhythmias and sudden cardiac arrest. In this study, Q-T interval changes in cirrhotic patients at different stages and with different etiologic factors was evaluated. Possible causes of Q-T wave abnormality in cirrhotic patients were also evaluated. Materials and methods: Sixty five cirrhotic patients (40-72 years old) and 45 healthy volunteer subjects (45-60 years old) were included in the study. Liver function tests in addition to complete blood count, serum electrolytes, creatinine, prothrombin time and thyroid functions were also measured. Ascites was evaluated by ultrasound examination, encephalopathy history was recorded for each patient and stages of cirrhotic patients were graded according to Child- Pugh's criteria. The Q-T interval was calculated according to the Bazet formula. Results: The Q-T interval was longer in cirrhotic patients (437±2.9 ms versus 365±2.8 ms p