Effects of heart ischemia-reperfusion on atrioventricular node conduction in rabbits
- VernacularTitle:缺血再灌注对家兔房室传导功能影响的实验研究
- Author:
Qing YAO
;
Zhiyuan SONG
;
Yonghua LI
;
- Publication Type:Journal Article
- Keywords:
ischemia reperfusion;
His bundle electrogram;
atrioventricular node
- From:Journal of Third Military Medical University
1984;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effects of heart ischemia reperfusion on conductive function of atrioventricular node (AVN) in rabbits. Methods Animal models of ischemia reperfusion of AVN were established by ligating and reopening the right coronary artery of rabbits. A total of 60 adult rabbits were divided into control groups ( n =10), right coronary artery occlusion group ( n =10), and ischemia reperfusion groups with ligation of the right artery occlusion for 10, 30, 60 and 120 min respectively ( n =10 for every subgroup). The hemodynamics, His bundle electrography and epicardial electography were carried out and recorded. Results After occlusion of right coronary artery, 94.8% animals in experimental groups were found to have prolonged atrial His interval (AH) ( P
