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Intermittent PR Prolongation During Narrow QRS Complex Tachycardia.

Rongbing Peng1, Chao Liu2, Ming Ni2

  • 1Department of Cardiovascular Medicine, Changhai Hospital, Naval Medical University, Shanghai, China; The Sanya Rehabilitation and Recuperation Center of the PLA Joint Logistics Support Force, Sanya, Hainan, China.

JACC. Case Reports
|November 28, 2025
PubMed
Summary

Diagnosing rare apical left atrial appendage (LAA) tachycardia with dual atrioventricular nodal pathways (DAVNP) is complex. Successful focal ablation was achieved through comprehensive electrophysiological study and individualized strategy.

Keywords:
atrial tachycardiadual atrioventricular nodal pathwaysleft atrial appendageleft atrial appendage electrical isolationradiofrequency ablation

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