Role of the ligament of Marshall in atrial fibrillation arising at pulmonary veins
- VernacularTitle:Marshall韧带在肺静脉触发性房颤中的作用
- Author:
Sen LEI
- Publication Type:Journal Article
- Keywords:
Atrialfibrillation;
Mechanism;
LigamentofMarshall
- From:
Journal of Chongqing Medical University
1986;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the role of the ligament of Marshall in atrial fibrillation arising at pulmonary veins. Methods:20 mongrel dogs were randomly divided into two groups(10 dogs in each group). Paroxysmal atrial fibrillation arising at the pulmonary veins was built in all dogs. After Ligament of Marshall ablation in group1,pulmonary vein ablation was performed in both group1 and 2. Epicardial electrograms,effective refractory period,and atrial inducibility were analyzed before and after two ablations. Results:The activation cycle length slowed down and atrial fibrillation inducibility was significantly decreased after the ligament of Marshall ablation in group1;atrial fibrillation inducibility were both decreased after pulmonary vein ablation. Conclusion:Ligament of Marshall might serve a electrical connections between pulmonary vein and left atrium or be another source of rapid activations in atrial fibrillation arising at the pulmonary veins.
