摘要
目的 研究翻转胸廓内动脉用于冠状动脉旁路术的可行性。方法 对10具成人尸体胸廓内动脉的特性进行观察,并测量左、右各肋间中点到ITA起点、冠状动脉左前降支中点的距离。结果 于近端切断胸廓内动脉可以保证该动脉逆向供血,血供来源于下位肋间动脉、肌隔动脉和腹壁上动脉。左侧第3肋间以下的各肋间中点,到ITA起点处的长度明显长于其到冠状动脉左前降支中点的距离;右侧第4肋间以下的各肋间中点,到ITA起点处的长度明显长于其到冠状动脉左前降支中点的距离。结论 翻转胸廓内动脉冠状动脉旁路术是一种可行的手术方法。
Objective To study the feasibility of coronary artery bypass using internal thoracic artery (ITA) in a reversed way. Methods The physical anatomic characteristics of ITA was observed on ten preserved adult cadavers. The distances, from the median point of every intercostal space on both side of the chest, to the beginning point of ITA and the median point of left anterior descending coronary artery, were measured and compared. Results ITA can get blood supply from the inferior intercostal arteries, musculophrenic artery and superior epigastric artery, if its proximal end was divided. On the left side of chest wall, the distance from the median point of the tliird intercostal space to the beginning of ITA is longer than the distance to the median point of left anterior descending coronary artery; On the right side of the chest wall, the distance from the median point of the forth intercostal space to the beginning of ITA is longer than the distance to the median point of left anterior descending coronary artery. Conclusion Coronary artery bypass using ITA in a reversed way is a feasible method.
关键词
冠状动脉旁路术
胸廓内动脉
手术方法
Coronary artery bypass (CAB) Internal thoracic artery (ITA) Surgical technique
