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

Supraventricular Tachycardia and Atrioventricular Block. Cardiac electrophysiology clinics Nguyen, D. T., Badhwar, N. 2010; 2 (2): 235–38

Abstract

The differential diagnosis for a mid- to long-RP supraventricular tachycardia include atrial tachycardia, atypical atrioventricular nodal reentrant tachycardia (AVNRT), and atrioventricular reentrant tachycardia (AVRT) utilizing a slowly conducting concealed accessory pathway. The presence of spontaneous atrioventricular block excludes AVRT. This case reviews pacing maneuvers to distinguish atrial tachycardia from AVNRT. Atypical AVNRT generally demonstrates the presence of a lower common pathway and has its site of earliest retrograde atrial activation near the coronary sinus ostium, which would be the target for ablation.

View details for DOI 10.1016/j.ccep.2010.01.010

View details for PubMedID 28770757