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Updated: Jul 16, 2026

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

AV block. Which type and where?

Kartikeya Bhargava1, Sameer Shrivastava, Balbir Singh

  • 1Escorts Heart Institute and Research Center, New Delhi, India. drkartikeya@hotmail.com <drkartikeya@hotmail.com>

Journal of Electrocardiology
|February 17, 2007
PubMed

Insights

This case study presents an electrocardiogram (ECG) revealing sinus tachycardia with a higher sinus rate than ventricular rate, suggesting atrio-ventricular (AV) block. The findings indicate an unusual AV block pattern in a patient with a history of anterior wall infarction.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Internal Medicine

Background:

  • Atrio-ventricular (AV) block is a condition affecting cardiac electrical conduction.
  • Anterior wall myocardial infarction can predispose patients to conduction abnormalities.
  • Sinus tachycardia is a common finding in various clinical scenarios.

Observation:

  • An electrocardiogram (ECG) demonstrated sinus tachycardia where the sinus rate exceeded the ventricular rate.
  • Variable PR intervals and irregular RR intervals were noted.
  • The P-wave to QRS complex relationship was inconsistent with typical second-degree type 1 AV block.

Findings:

  • The ECG findings suggest a complex or unusual form of atrio-ventricular (AV) block.
  • The specific site and degree of AV block require further elucidation.
  • The pattern observed deviates from classic Mobitz Type I (Wenckebach) block.

Implications:

  • This case highlights the importance of careful ECG interpretation in patients with cardiac history.
  • Understanding atypical AV block patterns is crucial for accurate diagnosis and management.
  • Further investigation may be warranted to determine the precise mechanism and clinical significance.

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