Immature myocardium in the structure,metabolism and function has its own specificity.The reoxygenation injury research of immature myocardial in cardiopulmonary bypass has more and more.

• 未成熟心肌在结构、代谢和功能上有其特殊性，对于未成熟心肌体外循环中的再氧合损伤的研究也越来越多。