The Relationship Between Coronary Anatomy and Angina Pectoris During Stent Balloon Dilatation in Patients Undergoing Percutaneous Coronary Intervention

Angina pectoris (AP) is defined as a clinical symptom characterized by sensations such as pressure-heaviness, burning, squeezing, or discomfort in different parts of the body, including the retrosternum, chest, jaw, neck, shoulders, and back. Limited publications exist on the impact of coronary artery disease localization on the placement, character, and severity of AP. This study aimed to investigate the relationship between the frequency of AP development due to myocardial ischemia during percutaneous coronary intervention (PCI), its character, severity, localization, and coronary anatomy. A total of 128 patients were included in the study, with 146 lesions treated among them. Among patients who underwent PCI of the right coronary artery (RCA), 31.1% reported no complaints. Similar rates were observed in patients undergoing PCI of the left anterior descending (LAD) and circumflex (Cx) arteries, at 23.7% and 19.1%, respectively. Pressure-heaviness was frequently observed in PCI of the LAD and Cx arteries, while burning was the dominant symptom description in PCI of the RCA. The isolated retrosternal and left thoracic regions were the most common localizations in all main coronary arteries. Epigastric localization occurred most frequently in PCI of the RCA. In terms of the severity of angina, no significant difference was observed between the three coronary arteries. Pressure-heaviness angina was commonly observed during PCI of the LAD and Cx, while burning angina was frequent during PCI of the RCA. The severity of AP was similar across the three main coronary arteries.