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

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Characteristic findings of body surface potential map during ventricular repolarization in patients with coronary

Y Z Tseng1, K L Hsu, F T Chiang

  • 1Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.

Japanese Heart Journal
|December 28, 1999
PubMed

Insights

Body surface potential mapping (BSPM) reveals abnormal electrical activity during ventricular repolarization in coronary artery disease (CAD) patients. These characteristic BSPM findings aid in diagnosing CAD and identifying lesion locations.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Electrophysiology

Background:

  • Coronary artery disease (CAD) poses a significant global health burden.
  • Accurate diagnosis and localization of CAD are crucial for effective treatment.
  • Ventricular repolarization abnormalities can indicate underlying cardiac issues.

Purpose of the Study:

  • To investigate the characteristics of body surface potential map (BSPM) findings during ventricular repolarization in patients with CAD.
  • To assess the potential of BSPM in identifying CAD and specific coronary artery lesions.

Main Methods:

  • 108 patients with angiographically confirmed CAD underwent BSPM.
  • BSPMs were recorded using a specialized heart potential map system with 87 lead points.
  • Analysis focused on potential distribution, polarity, and reversal during ventricular repolarization.

Main Results:

  • Abnormal negative potentials and potential minima were observed on the anterior thorax, correlating with specific coronary artery lesions (RCA, LAD, LCX).
  • Multipolar potential distribution abnormalities occurred during the initial stage and peak of the T wave in some patients.
  • Reversal of potential distribution was noted in approximately half of the studied CAD patients.

Conclusions:

  • BSPM demonstrates characteristic findings during ventricular repolarization in CAD patients.
  • Abnormal potential distribution, multipolar patterns, and potential reversal are valuable indicators.
  • BSPM has clinical utility in diagnosing CAD and localizing coronary artery lesions.

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