EFFECT OF SUPEROXIDE DISMUTASE PLUS CATALASE ON PROTECTION OF GLOBALLY ISCHEMIC REPERFUSED ISOLATED RABBIT HEART / 第二军医大学学报

An experimental model of isolated rabbit working hearts was used to investigate whether supplementing cardioplegic solution with oxygen free radical scavengers exerts protective effect on ischemic and reperfusad heart.Animal hearts wero randomly divided into two groups : simple cardioplegic solution was used in the control group ; cardioplegic solution was supplemented with superoxide dismutase plus catalase in the experimental group.Following 120 min of ischemic arrest and 30 min of reperfusion, recoveries of LVPSP, LVEDP, LV + dp/dt max and LV-dp/dt max, expressed as percentage of preischemic control valu-S, and tissue ATP contjnt w-r significantly better (P