Work

Coexistence of Atrial Flutter and Slow Ventricular Tachycardia

Year: 2025

Type: article

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 SVT and VT are frequently misdiagnosed, especially with proximal conduction abnormalities, increasing the risk of delayed recognition of tachycardia-induced cardiomyopathy. TAKE-HOME MESSAGES: This case highlights the importance of recognizing reversible cardiac dysfunction caused by dual tachycardia. Early rhythm control is key to improving prognosis.

Source: JACC Case Reports

DOI: 10.1016/j.jaccas.2025.106155

Authors: Zhihui Hou, Zhongwei Jiang, Gang Yang, Cheng Wang

Institutions: Jiangsu Province Hospital, Nanjing Medical University

Language: English

Topic: Cardiac Arrhythmias and Treatments

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $850