对于12名患者（70.59%），体外循环建立通过右腋动脉插管且选择性顺

For 12 patients (70.59%), cardiopulmonary bypass was established via right axillary artery intubation and selective antegrade cerebral perfusion was performed (of which 1 combined with femoral artery cannulation), and 4 (23.53%) with cardiopulmonary bypass were established through Ascending aorta cannulation, and selective antegrade cerebral perfusion was performed by deep insertion of the cannula into the innominate artery (of which 2 were combined with femoral artery cannulation), 1 patient with extracorporeal circulation femoral was established through arterial cannulation, and Selective antegrade cerebral perfusion is performed by direct cannulation in the right common carotid artery.

For 12 patients (70.59%), in vitro circulation was established through the right arterial intubation and selective flow of brain perfusion was carried out (of which 1 combined femoral artery intubation), 4 (23.53%) had in vitro circulation established through an aortic intubation intubation, and selective flow brain perfusion was carried out by inserting the intubation deep into the unknown artery (of which 2 merged arterial intubation), 1 patient had an in vitro circulation established by the in vitro circulatory intubation. And selective flow brain perfusion is carried out through direct intubation in the right neck artery.

For 12 patients (70.59%), cardiopulmonary bypass was established by right axillary artery intubation and selective antegrade cerebral perfusion was performed (one of them was combined with femoral artery intubation), 4 patients (23.53%) had cardiopulmonary bypass established by ascending aorta intubation and selective antegrade cerebral perfusion was performed by inserting the intubation deeply into innominate artery (two of them were combined with femoral artery intubation), and 1 patient had antegrade cerebral perfusion In addition, selective antegrade cerebral perfusion was performed by direct catheterization in the right common carotid artery.