Related Experiment Video
Updated: Aug 1, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Complete proximal occlusion of all three main coronary arteries complicated with a left main coronary aneurysm: a
Takatoshi Wakeyama1, Hiroshi Ogawa, Akira Takaki
1Division of Cardiology, Tokuyama Central Hospital, Koda-cho 1-1, Shunan, Yamaguchi 745-0822.
Insights
A 68-year-old woman with left main coronary artery aneurysm and 100% obstruction underwent successful surgical revascularization. The aneurysm remained stable, and the patient experienced symptom relief for 5 years.
Area of Science:
- Cardiology
- Cardiovascular Surgery
Background:
- Left main coronary artery (LMCA) disease is a critical condition requiring prompt intervention.
- Coronary artery aneurysms, particularly in the LMCA, are rare and pose unique management challenges.
Observation:
- A 68-year-old female presented with recurrent chest pain due to 100% LMCA obstruction and proximal right coronary artery occlusion.
- Angiography revealed a saccular aneurysm at the distal LMCA with 90% stenosis, alongside significant native coronary artery disease.
Findings:
- Emergency surgical revascularization with saphenous vein grafts (SVGs) to multiple coronary arteries was performed.
- Postoperative angiography demonstrated patent SVGs and a stable LMCA aneurysm (10 x 9 mm) with 90% stenosis.
- The LMCA aneurysm size remained unchanged at 1-year and 3-year follow-ups.
Implications:
- Successful surgical revascularization can be achieved in patients with complex LMCA disease and aneurysms.
- Long-term stability of the LMCA aneurysm and graft patency suggests a favorable prognosis.
- This case highlights the importance of individualized treatment strategies for LMCA aneurysms.
Abstract:
A 68-year-old woman with recurrent chest pain was referred to our institution. Coronary angiography showed 100% obstruction of the left main trunk, the proximal right coronary artery with good collaterals to the left anterior descending artery and left circumflex artery along the conus artery. Emergency surgical revascularization was undertaken with two saphenous vein grafts. The saphenous vein grafts were placed in the left anterior descending artery, obtuse marginal branch and the posterolateral and posterior descending coronary arteries with excellent flow. The postoperative course was uneventful and follow-up angiography was obtained 20 days after the surgery. Coronary angiography demonstrated a saccular aneurysm (10 x 9 mm) originating at the distal segment of the left main coronary artery with 90% stenosis, and excellent patency of both saphenous vein grafts. Follow-up angiography was performed 1 and 3 years after the surgery. The size of the left main coronary aneurysm remained unchanged at both examinations. The patient did well with no further cardiac symptoms after 5 years.
More Related Videos
13:10Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
Published on: April 24, 2017
07:04Creation of Two Saccular Elastase-Digested Aneurysms with Different Hemodynamics in One Rabbit
Published on: April 15, 2021
Related Concept Videos
Coronary Circulation
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
Cardiac Catheterization III: Left Heart Catheterization
Coronary Artery Disease III: Clinical Manifestations
Acute Coronary Syndrome III: Diagnostic Studies
Aneurysm I: Introduction
Aneurysm III: Interprofessional Care