Topographical anatomy of the right atrial appendage vestibule and its isthmuses

Introduction The right atrial appendage (RAA) vestibule is an area located in the right atrium between the RAA orifice and the right atrioventricular valve annulus and may be a target for invasive transcatheter procedures. Methods and Results We examined 200 autopsied human hearts. Three isthmuses (...

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Bibliographic Details
Published in:Journal of cardiovascular electrophysiology 2020-12, Vol.31 (12), p.3199-3206
Main Authors: Hołda, Jakub, Słodowska, Katarzyna, Tyrak, Kamil, Bolechała, Filip, Jasińska, Katarzyna A., Koziej, Mateusz, Hołda, Mateusz K., Walocha, Jerzy A.
Format: Article
Language:English
Subjects:
ablation
Anatomy
Atrium
cardiac anatomy
right atrial appendage
right atrial appendage vestibule
right atrium
terminal crest
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Summary:Introduction The right atrial appendage (RAA) vestibule is an area located in the right atrium between the RAA orifice and the right atrioventricular valve annulus and may be a target for invasive transcatheter procedures. Methods and Results We examined 200 autopsied human hearts. Three isthmuses (an inferior, a middle, and a superior isthmus) were detected. The average length of the vestibule was 67.4 ± 10.1 mm. Crevices and diverticula were observed within the vestibule in 15.3% of specimens. The isthmuses had varying heights: superior: 14.0 ± 3.4 mm, middle: 11.2 ± 3.1 mm, and inferior: 10.1 ± 2.7 mm (p 
ISSN:1045-3873
1540-8167
DOI:10.1111/jce.14767