Coexistence of Atrial Flutter and Slow Ventricular Tachycardia: A Rare Cause of Reversible Cardiomyopathy.

ABSTRACT:

Background

Dual tachycardia, the rare coexistence of supraventricular tachycardia (SVT) and ventricular tachycardia (VT), is often challenging to diagnose, particularly when SVT with bundle branch block obscures VT signs and especially without clear atrioventricular dissociation.

Case summary

A 55-year-old man with a history of hypertension presented with chest tightness, dyspnea, and transient syncope. Initially misdiagnosed as having atrial flutter with ventricular aberrancy via electrocardiogram, the patient was ultimately confirmed through electrophysiological testing to have atrial flutter coexisting with slow VT originating from the right midventricular septum along the right bundle branch. He underwent successful radiofrequency ablation.

Discussion

Coexisting S

SUBMITTER: Hou Z 

PROVIDER: S-EPMC12859582 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature