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Related Experiment Video

Updated: Oct 10, 2025

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Ventricular tachycardia originating from the His bundle: A case report.

Lu-Yao Zhang1, Shu-Juan Dong1, Hai-Jia Yu2

  • 1Department of Cardiology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan Province, China.

World Journal of Clinical Cases
|December 8, 2021
PubMed
Summary

Ventricular tachycardia (VT) originating from the His bundle branch is rare and challenging to diagnose. This case study demonstrates successful ablation and pacemaker insertion for a patient with this specific type of VT.

Keywords:
Case reportElectrocardiogramHis bundleVentricular tachycardia

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Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Ventricular tachycardia (VT) is a common complication in heart failure patients, increasing the risk of sudden cardiac death.
  • VT originating from the His bundle branch is an uncommon etiology that presents diagnostic challenges.

Observation:

  • A 58-year-old female presented with recurrent palpitations and dizziness.
  • Electrocardiogram revealed spontaneous conversion between two distinct VT morphologies, suggesting a single origin from the His bundle branch.
  • The patient had a history of fatty liver, cholecystitis, and possible carotid atherosclerosis.

Findings:

  • The electrophysiologic mechanism indicated dual-source VT originating from the His bundle branch.
  • Successful radiofrequency ablation of the His bundle branch was performed.
  • A dual-chamber pacemaker was implanted post-ablation.

Implications:

  • This case highlights the importance of careful electrocardiogram evaluation for diagnosing rare VT origins.
  • Intracardiac electrophysiologic examination is crucial for confirming His bundle VT.
  • Successful management of His bundle VT can be achieved through ablation and pacing, improving patient outcomes.