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Pediatric Cardiology

, Volume 40, Issue 1, pp 230–233 | Cite as

A Proposed Etiology for Atrial Tachyarrhythmia in Neonates with Atrial Septal Aneurysms

  • Raymond MoralesEmail author
  • John W. Bokowski
  • Hoang Nguyen
  • Sawsan M. Awad
Case Report

Abstract

An atrial septal aneurysm (ASA) is an increasingly recognized entity that involves septal tissue significantly bulging into either atria instead of remaining in a relatively neutral position. ASAs may be described based on the length of the segment of atrial septal tissue involved as well as the distance and direction of excursion into the atria throughout the cardiac cycle. Complications associated with ASA include arrhythmias and thromboembolic events with the latter usually in the context of atrial shunting. While the presence of an ASA has been implicated in the development of atrial tachyarrhythmias, no clear mechanism has been elucidated to-date. In this case, we document one of the previously proposed mechanisms of atrial arrhythmia using echocardiography imaging.

Keywords

Atrial septal aneurysm Arrhythmia Atrial tachyarrhythmia 

Notes

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

Research Involving Human and Animal Participants

This article does not contain any studies with human participants or animals performed by any of the authors.

Supplementary material

246_2018_2017_MOESM1_ESM.avi (14.1 mb)
ONLINE RESOURCE 1 Transthoracic Echocardiogram (TTE) on day of life 2. Apical 4-chamber view demonstrating a floppy ASA oscillating between right and left atrium. The hypermobile atrial septum primarily bulges into the left atrium. (AVI 14402 KB)
246_2018_2017_MOESM2_ESM.avi (86.1 mb)
ONLINE RESOURCE 2 Transthoracic Echocardiogram (TTE) on day of life 2. Parasternal short axis view demonstrating a floppy ASA oscillating between right and left atrium. The atrial septum primarily bulges into the left atrium coming into direct contact with the posterior wall of the left atrium thereby inducing a premature atrial beat. (AVI 88204 KB)
246_2018_2017_MOESM3_ESM.avi (14.9 mb)
ONLINE RESOURCE 3 Transthoracic Echocardiogram (TTE) on day of life 16. Apical 4-chamber view demonstrating a floppy ASA oscillating between right and left atrium. The atrial septum primarily bulges into the right atrium for the majority of the cardiac cycle. (AVI 15302 KB)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Pediatric Cardiology, Department of PediatricsRush University Medical CenterChicagoUSA

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