Notice: Users may be experiencing issues with displaying some pages on stanfordhealthcare.org. We are working closely with our technical teams to resolve the issue as quickly as possible. Thank you for your patience.
 

Learn about the flu shot, COVID-19 vaccine, and our masking policy »

Stanford Health Care

Uncovering a unique path: Antidromic AVRT utilizing a Left Anteroseptal Mahaim-like accessory pathway. Pacing and clinical electrophysiology : PACE Sandhu, A., Tzou, W. S., Borne, R. T., Zipse, M. M., Nguyen, D. T., Sauer, W. H. 2020

Abstract

A 40-year old man presented to our emergency department 2 hours after onset of shortness of breath, palpitations and presyncope secondary to an adenosine-responsive wide complex tachycardia. Electrophysiology study was diagnostic for antidromic AV reentrant tachycardia (AVRT) utilizing a muscular connection from the anterior interventricular vein (AIV) to the left ventricle with Mahaim-like properties, successfully treated with ablation in the distal coronary sinus system. This case highlights accessory pathways (1) with unique features (ie. Mahaim-like characteristics) and (2) involving musculature from the distal coronary sinus system, thereby limiting the value of endocardial ablation for durable treatment. Importantly, the coronary venous system is an accessible vascular network for evaluation and catheter ablation of such arrhythmias. This article is protected by copyright. All rights reserved.

View details for DOI 10.1111/pace.14024

View details for PubMedID 32794265