CASE REPORT article
Front. Physiol.
Sec. Cardiac Electrophysiology
The Missing P waves in Wide QRS Tachycardia
Provisionally accepted
- 1Guilin Hospital of the Second Xiangya Hospital of Central South University, Guilin, China
- 2Second Xiangya Hospital, Central South University, Changsha, China
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A 57-year-old male patient presented with paroxysmal palpitation for 2 years. The patient's blood pressure was 120/76 mm Hg; heart rate was 149 beats/min. The presenting electrocardiogram showed a wide QRS complex tachycardia with an irregular rhythm. The RR intervals are irregular, and there are more complex QRS waves than P waves. The patients were firstly diagnosed with ventricular tachycardia likely. The ECG during sinus rhythm revealed complete right bundle branch block. The patient underwent invasive electrophysiological study and then was diagnosed atrioventricular nodal reentrant tachycardia (AVNRT). Following successful slow pathway radiofrequency ablation (located at the anterior part of the coronary sinus ostium), tachycardia was no longer inducible. Keywords: wide QRS waves, tachycardia, atrioventricular nodal reentrant tachycardia, conduction block, ablation.
Keywords: ablation, atrioventricular nodal reentranttachycardia, conduction block, Tachycardia, wide QRS waves
Received: 26 Oct 2025; Accepted: 17 Dec 2025.
Copyright: © 2025 Mo, Zhang, Xuping and Chen. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Mingxian Chen
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