Challenges to Contemporary Wide Complex Tachycardia Criteria: A Single-center Case Series of 1:1 Atrial Flutter.

Abstract

Atrial flutter with 1:1 atrioventricular conduction is a rare cause of wide complex tachycardia, which presents a diagnostic challenge. This report describes a series of eight cases of 1:1 atrial flutter compiled during 2018-2022. The cases in this report include patients without class 1 anti-arrhythmic use or pre-excitation.