Work

Irregularly irregular AVNRT misdiagnosed by smartwatch

Year: 2026

Type: article

Abstract: A fifty-one-year-old woman presented with an irregularly irregular rhythm noted on a smartwatch. EP study revealed a narrow complex A-on-V tachycardia with significant cycle-length variability. Pacing maneuvers were consistent with atrioventricular nodal re-entry tachycardia (AVNRT), and we performed slow pathway modification. While AVNRT can have some degree of variability - particularly on warm up - the amount of irregularity here was striking, and much more than we have ever encountered or than has been previously reported in the literature.

Source: Indian Pacing and Electrophysiology Journal

DOI: 10.1016/j.ipej.2026.02.007

Authors: Yaanik B. Desai, Nitish Badhwar

Institutions: Stanford Medicine, Stanford Cardiovascular Institute, Stanford 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: $550