Abstract
Abstract
Background: A “giant” coronary artery aneurysm is variably defined in the literature—commonly as a dilatation of a coronary vessel exceeding four times the diameter of the adjacent normal segment, or exceeding a fixed threshold such as > 8 mm or > 20 mm in diameter1.
Case presentation: We report the case of a 61-year-old woman with type II diabetes mellitus and systemic hypertension, who presented with breathlessness and chest pain radiating to the back. She had recently suffered a non-ST elevation myocardial infarction (NSTEMI) and was found on coronary angiography to have a large aneurysm of the acute marginal branch of the right coronary artery (RCA). Given the extreme size of 6x 4cm and branch-vessel location, this meets the criteria for a giant aneurysm. She underwent successful surgical repair under cardiopulmonary bypass—without aortic cross-clamping or bypass grafting. Histopathologic examination excluded infection and vasculitis. Her postoperative course was uneventful, and she was discharged on postoperative day four.
Conclusion: Isolated Giant acute marginal artery aneurysm causing life threatening symptoms are exceptionally rare; this report highlights the importance of branch vessel aneurysm and feasibility of successful direct surgical repair with preservation of native coronary perfusion.
Keywords
Coronary artery aneurysm; Giant; NSTEMI; Acute marginal artery; Right coronary artery
Recommended Citation
Kumari, Sai Ms.; Mohanraj, Anbarasu Dr; and Damodaran, Saranya Ms
(2026)
"ISOLATED GIANT ANEURYSM OF THE ACUTE MARGINAL BRANCH OF RIGHT CORONARYARTERY PRESENTING AS NSTEMI: SUCCESSFUL DIRECT SURGICAL REPAIR PRESERVING THE NATIVE FLOW,"
Journal Of Indian Physician Associates: Vol. 2:
Iss.
1, Article 8.
Available at:
https://digitalshowcase.lynchburg.edu/jipa/vol2/iss1/8
Included in
Cardiology Commons, Cardiovascular Diseases Commons, Diagnosis Commons, Other Analytical, Diagnostic and Therapeutic Techniques and Equipment Commons, Surgical Procedures, Operative Commons