Related Experiment Video
Updated: Sep 15, 2025

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation
Published on: September 24, 2021
Polymyositis-Induced Atrial Flutter: A Rare and Unexpected Arrhythmia in an Idiopathic Inflammatory Myopathy
Arun Katwaroo1, Matthew Maharaj2, Priya Ramcharan2
1Department of Medicine, North West Regional Health Authority, Port of Spain, Trinidad and Tobago.
Abstract:
We describe a 28-year-old Caribbean-Black female with polymyositis-associated atrial flutter during an acute flare episode for which she was successfully managed with guideline-directed medical therapy and noninvasive positive pressure ventilation. The clinician should be cognizant of this rare association, especially in young patients who present with symptomatic arrhythmias and chronic, preexisting idiopathic inflammatory myopathies.
Related Concept Videos
Myocarditis I: Introduction
Myocarditis II: Clinical Features and Diagnostic Tests
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
Myocarditis III: Medical Management
Dysrhythmias III: Characteristics of Dysrhythmias
Mechanism of Cardiac Arrhythmias

