Keywords quateranary ammonium salt derivative;myocardial reperfusion injury;creatine kinase isoenzyme MB;superoxide dismutase;malondiadehyde;electron microscopy;

• 氟哌啶醇季铵盐;心肌缺血再灌注损伤;肌酸激酶同工酶MB;超氧化物歧化酶;丙二醛;电子显微镜;