The Protective Effect of Ulinastatin on Myocardial Reperfusion Injury during Cardiopulmonary Bypass in Patients Underwent Valve Replacement / 中国医师杂志

ABSTRACT

Objective To investigate the protective effects of ulinastatin on myocardial reperfusion injury during cardiopulmonary bypass(CPB) in patients underwent valve replacement. Methods 26 ASA Ⅱ-Ⅲ patients scheduled for valve replacement were randomly divided into control group (group C) and ulinastatin group ( group W), each group containing 13 patients. In group W, the patients received ulinastatin 12000U?kg -1 , half dose of which was given before CPB, and the other half was added into the primary solution. Plasma levels of CK,CK-MB and cTnI were measured before operation(T 1), 20 min after starting CPB(T 2), 30 min after declamping aorta (T 3), and 4h(T 4) and 24h(T 5) after operation. Results The plasma level of CK, CK-MB and cTnI increased significantly at T 3, T 4 and T 5 in the both groups compared with T 1(P