Additional Value of Early Repolarization Pattern in Prediction of Obstructive Coronary Artery Disease as Assessed by...

Area of Science:

• Cardiology
• Electrophysiology
• Preventive Medicine

Background:

• Early repolarization pattern (ERP) is increasingly linked to sudden cardiac death, particularly in patients with obstructive coronary artery disease (CAD).
• Previous case studies suggested a potential association between ERP and obstructive CAD, but large-scale validation was lacking.

Purpose of the Study:

• To investigate the relationship between early repolarization pattern (ERP) and obstructive coronary artery disease (CAD).
• To evaluate the association of ERP with coronary artery stenosis severity and extent.

Main Methods:

• A retrospective analysis of 3785 consecutive patients undergoing coronary angiography was performed.
• The study assessed the association between ERP and obstructive CAD, adjusting for major cardiovascular risk factors.
• Statistical analyses included logistic regression, receiver operating characteristic (ROC) curves, and net reclassification improvement (NRI).

Main Results:

• ERP was significantly associated with obstructive CAD (adjusted OR: 2.24) and demonstrated incremental predictive value.
• ERP improved prediction for multi-vessel disease (2-vessel and 3-vessel disease).
• The association was consistent across patients with low and intermediate cardiovascular risk, and with stenoses in three main coronary arteries.

Conclusions:

• Early repolarization pattern is a significant risk indicator for obstructive coronary artery disease.
• ERP offers incremental predictive value for identifying significant coronary artery stenosis and multi-vessel disease.
• Further research is needed to confirm these findings and explore underlying pathogenic mechanisms.