METHODS: 518 patients whose age were under 3 years underwent open heart surgery. In group 1, 96 patients underwent arrested heart operation, and in group 2, 422 patients underwent beating heart operations.

• 方法 :分析 5 1 8例 3岁以下行心脏手术患者 ；其中 96例 (组 1 )在中低温体外循环心脏停跳下手术 ；4 2 2例 (组 2 )在浅低温体外循环心脏不停跳下进行手术 .