Case report


Large atrial septal defect misdiagnosed as arrhythmogenic right ventricular cardiomyopathy

Lisa Moore DO, Cihan Cevik MD

ABSTRACT

We report a case of a large ostium secundum atrial septal defect that was initially diagnosed as an arrhythmogenic right ventricular cardiomyopathy. We discuss the initial workup, diagnosis, and treatment of this patient’s atrial septal defect and explore how the pathophysiology of arrhythmogenic right ventricular cardiomyopathy may mimic congenital heart disease when there is a large left-to-right shunt.

Keywords: atrial septal defect, arrhythmogenic right ventricular cardiomyopathy, arrhythmogenic right ventricular dysplasia, congenital heart disease, left to right shunt




Article citation: The Southwest Respiratory and Critical Care Chronicles 2019;7(30):58–62

From: Rocky Vista University College of Osteopathic Medicine, UC Health Heart Center Memorial Hospital Central, Colorado Springs, CO.

Submitted: 5/9/2019

Accepted: 7/1/2019

Reviewers: Scott Shurmur MD; Aliakbar Arvandi MD

Conflicts of interest: none

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.