Isolated left main coronary artery stenosis: long term follow up in 106 patients after surgery

Area of Science:

• Cardiovascular Surgery
• Interventional Cardiology
• Cardiac Surgery Outcomes

Background:

• Left main coronary artery (LMCA) stenosis is a critical condition requiring effective treatment.
• Surgical revascularization remains a primary therapeutic option for LMCA stenosis.
• Understanding the long-term prognosis after surgery is crucial for patient management.

Purpose of the Study:

• To evaluate the long-term prognosis of patients with isolated left main coronary artery (LMCA) stenosis after surgical revascularization.
• To assess survival rates, symptom relief, and return to work in this patient cohort.

Main Methods:

• A retrospective analysis of 106 patients who underwent surgical revascularization for LMCA stenosis between 1982 and 1998.
• Data collected included patient demographics, preoperative symptoms, surgical details (e.g., number of grafts, internal thoracic artery use), and postoperative outcomes.
• Specific attention was given to patients with ostial LMCA stenosis.

Main Results:

• Early postoperative mortality was 4.7%, with a 5-year survival rate of 86.8%.
• Late mortality occurred in nine cases, with three linked to coronary conditions.
• Among long-term survivors, 81.5% were symptom-free, and 77% of working-age patients returned to work.
• Outcomes for isolated ostial LMCA stenosis were comparable to other LMCA stenosis locations.

Conclusions:

• Surgical revascularization provides a favorable long-term prognosis for patients with isolated LMCA stenosis.
• The procedure is associated with good survival rates and significant symptom improvement.
• Ostial LMCA stenosis does not appear to confer a worse prognosis compared to other LMCA stenosis sites.