Conclusion Beating heart on cardiopulmonary bypass with mild hypothermia could attenuate ischemia-reperfusion injury of myocardium, so it has better myocardial protection effects.

结论浅低温心肺转流心脏不停跳心内直视手术可减轻心肌缺血-再灌注损伤，有较好的心肌保护作用。