摘要
目的 :为心脏介入治疗和心血管外科提供房室结动脉的解剖学基础。方法 :对 5 5例成人心脏的房室结动脉进行解剖 ,观察其起源 ,测量其外径、长度和到Koch三角边界相关结构的距离。结果 :房室结动脉以 1支多见 (83 .6%) ,2支少见 (16.4%) ,且多起源于右冠状动脉 (87.5 %) ;房室结动脉外径 (1.0± 0 .2 )mm ,主干长 (18.7± 4.3 )mm ;Koch三角中房室结动脉干到冠状窦口的距离为 (4 .6± 2 .1)mm ,到隔瓣附着处的距离为 (5 .2± 2 .1)mm ,其中发自右冠状动脉分支和左冠状动脉旋支的房室结动脉干到冠状窦口的距离分别为 (4 .6± 2 .0 )mm和 (3 .4± 1.7)mm。结论 :房室结动脉在Koch三角内的行程变异较大 ,在心脏介入治疗或心脏外科手术操作时 ,应密切关注Koch三角区 ,减少对房室结动脉的损伤。
Objective: To provide the anatomical basis for invasive cardiological procedures and cardiac surgery. Methods: The origin and course of the atrio-ventricular node artery (AVNA) was studied by the method of injection-dissection in 55 human hearts. The outer diameter and the length of AVNA, the distance from AVNA to the attachment of the septal cusp of the right atrio-ventricular valve, and the distance to the orifice of the coronary sinus were measured. Results: Though sometimes appearing double (16.4%) , the AVNA was solitary general (83.6%). Its coronary origin came from the right side in the great majority of cases (87.5%) .The outer diameter of AVNA was (1.0±0.2) mm and the length of its trunk was (18.7±4.3) mm. In the area of Koch's triangle, the distance from the trunk of AVNA to the orifice of the coronary sinus was (4.6±2.1) mm, to the 1attachment of the septal cusp was (5.2±2.1) mm. Conclusion: AVNA varies considerably in its course in Koch's triangle. In invasive cardiological procedures and cardiac surgery, we should pay attention to the area of Koch's triangle to reduce the risks of injury to the AVNA.
出处
《中国临床解剖学杂志》
CSCD
北大核心
2004年第2期156-158,共3页
Chinese Journal of Clinical Anatomy
关键词
房室结动脉
应用解剖
射频消融
房室传导阻滞
atrio-ventricular node artery
applied anatomy
RFCA
atrio-ventricular block
