Narrow QRS Tachycardia in a Patient with Tachycardiomyopathy: What Is the Mechanism?

Krishna Kumar Mohanan Nair; Narayanan Namboodiri; Syamkumar Divakaramenon; Bharatraj Banavalikar; Sreevilasam Pushpangadhan Abhilash; Anees Thajudeen; Ajitkumar Valaparambil

doi:10.1111/pace.12978

Narrow QRS Tachycardia in a Patient with Tachycardiomyopathy: What Is the Mechanism?

Pacing Clin Electrophysiol. 2016 Dec;39(12):1410-1411. doi: 10.1111/pace.12978. Epub 2016 Dec 7.

Authors

Krishna Kumar Mohanan Nair¹, Narayanan Namboodiri¹, Syamkumar Divakaramenon², Bharatraj Banavalikar¹, Sreevilasam Pushpangadhan Abhilash¹, Anees Thajudeen¹, Ajitkumar Valaparambil¹

Affiliations

¹ Department of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, Kerala, India.
² Division of Cardiology, Electrophysiology and Pacing, Arrhythmia Services, Hamilton Health Sciences, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada.

PMID: 27862033
DOI: 10.1111/pace.12978

Abstract

A 50-year-old female presented with incessant palpitation of 2 weeks duration. She was hemodynamically stable and there was no evidence of heart failure. A transthoracic echocardiogram showed mild left ventricular (LV) dysfunction with LV ejection fraction of 45%. Electrocardiogram (12 lead and rhythm strip) was taken during the palpitation. What is the mechanism?

Keywords: AVRT; atrial ectopic; dual-AV node physiology; left-sided accessory pathway; narrow QRS tachycardia.

Publication types

Case Reports

MeSH terms

Accessory Atrioventricular Bundle / complications*
Accessory Atrioventricular Bundle / diagnosis*
Diagnosis, Differential
Electrocardiography / methods*
Female
Humans
Middle Aged
Tachycardia, Atrioventricular Nodal Reentry / complications*
Tachycardia, Atrioventricular Nodal Reentry / diagnosis*