夹带(生物音乐学)
中庭(建筑)
环空(植物学)
烧蚀
心动过速
作者
Jonathan M. Kalman,Jeffrey E. Olgin,Leslie A. Saxon,Westby G. Fisher,Randall J. Lee,Michael D. Lesh
出处
期刊:Circulation
[Ovid Technologies (Wolters Kluwer)]
日期:1996-08-01
卷期号:94 (3): 398-406
被引量:310
标识
DOI:10.1161/01.cir.94.3.398
摘要
Background The importance of anatomic barriers in the atrial flutter reentry circuit has been well demonstrated in canine models. It has been shown previously that the crista terminalis and its continuation as the eustachian ridge form a posterior barrier. In this study we tested the hypothesis that the tricuspid annulus forms the continuous anterior barrier to the flutter circuit. Methods and Results Thirteen patients with typical atrial flutter were studied. A 20-pole halo catheter was situated around the tricuspid annulus. A mapping catheter was used for activation and entrainment mapping from seven sequential sites around the tricuspid annulus and from three additional sites including the tip of the right atrial appendage, at the fossa ovalis, and in the distal coronary sinus. Sites were considered to be within the circuit when the postpacing interval minus the flutter cycle length and the stimulus time minus the activation time were ≤10 ms; sites were considered to be outside the circuit when these i...
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