Objective To observe the morphologic characteristics of myocardial sleeve in sheep~(, ) s pulmonary veins to provide data for the model of ectopic atrial fibrillation.
目的观察山羊肺静脉心肌袖的形态特征，为异位房颤动物模型提供形态资料。
2
Objective The study try to establish a new model of focal atrial fibrillation(AF) by stimulating the ganglionated plexus(GP) located at the base of the pulmonary veins(PVs).
目的探讨一种通过刺激自主神经结丛来建立持续局灶性心房颤动（房颤）动物模型的新方法。
3
Methods the left atrial, left superior pulmonary veins were mapped in the sinus rhythm.