Methods Tissue mass in the right ventricular outflow tract was taken for enzymolysis to get individual cells bef ore the perfusion of cardiac arrest fluid after the systemic circulation of the operated children with tetralogy of Fallot.

• 方法 TOF手术病儿体外循环后，灌注心脏停跳液前取右室流出道组织块进行酶解，得到单个细胞。