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Stenting of the left main coronary artery. Local experience in Liège
Insights
Left main coronary artery (LMCA) stenting offers a viable alternative to coronary artery bypass graft (CABG) surgery for high-risk patients. This study shows favorable outcomes for elective LMCA stenting, especially in patients unsuitable for CABG.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Vascular Surgery
Background:
- Left main coronary artery (LMCA) disease poses significant risks, often necessitating coronary artery bypass graft (CABG) surgery.
- Patients with high surgical risk may not be candidates for traditional CABG procedures.
- Percutaneous coronary intervention (PCI) with stenting is an alternative treatment modality.
Purpose of the Study:
- To evaluate the immediate and long-term outcomes of LMCA stenting in patients deemed unsuitable for CABG.
- To compare outcomes based on clinical presentation (elective vs. acute).
Main Methods:
- Retrospective analysis of 41 consecutive patients undergoing LMCA stenting.
- Patients were categorized into elective (n=32) or acute (n=9) settings.
- Follow-up duration averaged 19 months.
Main Results:
- Overall technical success was high, particularly in elective cases (100%).
- Survival at hospital discharge was 96% for elective patients versus 44% for acute patients.
- Late follow-up showed favorable outcomes, with only one case of LMCA restenosis requiring repeat angioplasty.
Conclusions:
- Elective LMCA stenting is a safe and effective option for patients with high surgical risk who are unsuitable for CABG.
- Outcomes vary significantly based on clinical presentation, with better results in elective cases.
- LMCA stenting provides a favorable long-term clinical outcome in selected high-risk populations.
Abstract:
We examined the immediate and long-term outcome after stenting of the left main coronary artery (LMCA) in 41 consecutive patients who had been considered unsuitable for coronary artery bypass graft surgery (CABG). The procedure was elective in thirty-two patients (78%) with a protected LMCA in 24 patients and non-protected LMCA in 8 patients; the procedure was acute in the setting of myocardial infarction or complication of a diagnostic angiography in 9 patients (22%). The mean follow-up duration was 19 +/- 13 months. There were 5 in-hospital and 3 late deaths; repeat angioplasty was performed in 5 cases, but only one for LMCA restenosis. Results varied considerably depending on the clinical presentation. For acute patients, technical success was achieved in 89%, survival at hospital discharge was 44% and there was no cardiac event at the late follow-up. For elective patients, technical success was achieved in 100%, survival at hospital discharge was 96% and 90% at follow-up. The results of our study suggest that when patients have surgical risks, elective LMCA stenting either protected or unprotected may be undertaken with a high procedural success rate and a favourable clinical late follow-up.