Authors:

Phuong Ba

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Introduction Elevated systolic blood pressure (SBP) is a key risk factor for coronary artery disease, but its link with lesion location in the right coronary artery (RCA) remains unclear. Understanding whether lesion distribution in the RCA varies across SBP categories may aid risk stratification and imaging interpretation for hypertensive patients. This study aimed to investigate the potential relationship between SBP levels and the anatomical location of atherosclerotic lesions in the RCA. Method A cross-sectional review was conducted on 30 patients with unstable angina who underwent dynamic coronary angiography. Patients with prior Percutaneous Coronary Intervention or Coronary Artery Bypass Grafting were excluded. Patients were grouped by SBP during dynamic coronary angiography: <120; 120-129; 130-139 and ?140 mm Hg. RCA lesions were classified as 1R (mid-segment, proximal), 2R (mid-segment, distal), 3R (distal), and 4R (proximal). A Chi-square analysis was used to evaluate the association between lesion location and SBP. Results Lesions at the 1R segment were most frequently associated with SBP levels greater than 140 mmHg (37.5%). Among patients with SBP above 140 mmHg, the 1R site was the most common lesion location (60%), compared with 0% with 2R lesions, 10% with 4R lesions. Although this association did not reach statistical significance (p = 0.526), it may suggest a trend toward a correlation between elevated SBP and lesion distribution within the RCA. Conclusion This suggests a possible correlation between SBP level and 1R lesion, highlighting the importance of effective hypertension management, as † Presenting Undergrad Author; ‡ Contributing Undergrad Author; * Undergrad Acknowledgment better SBP control may help reduce the prevalence of 1R lesions and improve overall cardiovascular outcomes. Keywords: Right Coronary Artery; Atherosclerotic Lesions; Systolic Blood Pressure; Angina

Source:

Purdue University / 2025

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Co-authors:

Phuong Ba