Methods Serum myocardial enzymes and electrocardiograms in 50 cases with MPP were examined,and 30 health infants were in control group.

• 方法以30例健康儿童作对照组,对50例MPP患儿(观察组)行心肌酶及心电图检查,并在加用抗氧化剂治疗后复查。