The Comparison of Changes of QTc, Tp-e Interval, and Tp-e/QT Ratio, Tp-e/QTc Ratio on the ECG During Living Donor Liver Transplantation Under Desflurane and Total Intravenous Anesthesia -Randomized Controlled Trial

The Comparison of Changes of QTc, Tp-e Interval, and Tp-e/QT Ratio, Tp-e/QTc Ratio on the ECG During Living Donor Liver Transplantation Under Desflurane and Total Intravenous Anesthesia -Randomized Controlled Trial

Prolonged corrected QT interval (QTc) has been observed in about half of patients with liver cirrhosis. Marked prolongation of QTc (ie, 500 msec) has been considered to be a risk factor for fatal ventricular arrhythmia, such as torsade de pointes,7,8 which has been reported in liver transplantation (LT) surgery. In a previous study, prolonged QTc interval ( 500 msec) was frequently observed throughout the procedure of LT, even among patients with baseline QTc 440 msec. Therefore, it is important to optimize electrolyte balance and hemodynamic status to reduce greater risk of perioperative arrhythmias.

The investigators hypothesized that the change of QTc interval might be differ according to method of general anesthesia (inhalation agent vs. intravenous agent).

Inclusion Criteria:

• patients with liver cirrhosis who will undergo planned liver transplantation

Exclusion Criteria:

• 1. emergent liver transplantation
• 2. unstable angina
• 3. recent MI(Myocardial Infarction)
• 4. uncontrolled hypertension (diastolic BP > 110mmHg)
• 5. implantable cardiac defibrillator
• 6. severe obesity (BMI>30kg/m2)
• 7. allergy to propofol