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Left main coronary artery rotational atherectomy and stenting
A K Nayak1, R Davis, H K Reddy
1Department of Internal Medicine, University of Missouri-Columbia, 65212, USA.
Insights
Rotational atherectomy and stenting offer safe and effective treatment for critical left main coronary artery (LMCA) disease in high-risk patients unsuitable for bypass surgery. These interventions successfully revascularized patients, relieving symptoms and showing no progression of stenosis during follow-up.
Area of Science:
- Interventional Cardiology
- Vascular Surgery
Background:
- Coronary artery bypass surgery poses challenges for high-risk patients with critical left main coronary artery (LMCA) disease.
- LMCA disease often necessitates alternative revascularization strategies when bypass surgery is not feasible.
Purpose of the Study:
- To evaluate the outcomes of rotational atherectomy and/or stenting in patients with critical LMCA stenosis.
- To assess the efficacy of these interventions in both protected and unprotected LMCA stenosis.
- To review existing literature on LMCA interventions.
Main Methods:
- Retrospective review of seven male patients with critical LMCA stenosis deemed high-risk for bypass surgery.
- Procedures included rotational atherectomy (five patients), stenting (one patient), or both (one patient).
Main Results:
- Angiographic success and symptom relief were achieved in all patients.
- Six patients were discharged within 3-6 days; one patient died post-procedure due to complications.
- One patient underwent subsequent bypass surgery, and follow-up showed no progression of residual LMCA stenosis.
Conclusions:
- LMCA rotational atherectomy and stenting are safe and effective revascularization options.
- These procedures provide a viable alternative for high-risk patients and those not candidates for bypass surgery.
Background:
Coronary artery bypass surgery is a difficult option in patients who are not candidates for bypass surgery and high-risk patients with critical left main coronary artery (LMCA) disease. We report outcomes and short-term follow-up of patients who had LMCA rotational atherectomy and/or stenting, assess the role of these interventions in protected and unprotected significant LMCA stenosis, and review the literature.
Methods:
We reviewed the cases of seven men with critical LMCA stenosis for whom coronary artery bypass surgery was considered a high risk. Five patients had rotational atherectomy, one had coronary artery stenting, and one had both.
Results:
In all cases, angiographic success was achieved, and symptoms were relieved. Six patients were discharged from the hospital in 3 to 6 days. One patient who had cardiogenic shock, respiratory failure, and acute renal failure before the procedure died of arrhythmia 4 days afterward. Another patient had elective coronary artery bypass graft surgery 3 weeks later for recurrent angina. Cardiac catheterization was repeated in 1 month for chest pain in three patients at 4 to 7 months follow-up, and none had progression of residual stenosis in the LMCA.
Conclusions:
Our study suggests that LMCA rotational atherectomy and stenting are safe and effective revascularization procedures in high-risk patients and patients who are not candidates for bypass surgery.