A Simple Numerical Body Surface Mapping Parameter Signifies Successful Percutaneous Coronary Artery Intervention

Area of Science:

• Cardiology
• Medical Imaging
• Electrophysiology

Background:

• Coronary artery disease (CAD) may present subtle electrical changes not visible on standard ECGs.
• Body surface potential mapping (BSPM) can detect these minor electrical variations.
• The Max/Min BSPM parameter was investigated as an indicator of successful percutaneous coronary intervention (PCI).

Purpose of the Study:

• To test the hypothesis that the Max/Min BSPM parameter indicates successful PCI in CAD patients.
• To evaluate the Max/Min parameter's utility in monitoring post-PCI outcomes.

Main Methods:

• Ninety-two stable CAD patients undergoing coronary angiography were studied.
• Seventy patients received PCI in the left anterior descending (LAD), right (RCA), or left circumflex (LCX) arteries.
• Max/Min BSPM and left ventricular ejection fraction (LVEF) were measured before and after PCI.

Main Results:

• Pre-PCI, Max/Min values differed significantly between LAD and RCA lesions compared to healthy controls.
• Max/Min values increased post-LAD PCI and decreased post-RCA PCI, indicating successful revascularization.
• LVEF improved significantly only after LAD PCI.

Conclusions:

• The Max/Min BSPM parameter is a suitable tool for monitoring patients after LAD and RCA PCI.
• BSPM offers a non-invasive method to assess the effectiveness of PCI in specific coronary arteries.