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Updated: Jul 28, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Right atrial tunnel to the left atrial appendage: a danger during balloon septostomy
J D Waldman1, P McFeeley, L Bornikova
1University of New Mexico School of Medicine and the Office of the Medical Investigator, Albuquerque, NM 87106, USA. dwaldman@salud.umn.edu
Abstract:
Right atrial tunnel to the left atrial appendage is a very rare anomaly not previously described. Per se, it has no physiological significance but is a source of potential disaster during balloon atrial septostomy. The precise anatomy is demonstrated and ways are proposed to avoid tearing the atrial wall during therapeutic cardiac catheterization.
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