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Updated: May 25, 2026

Myocardial Infarction and Functional Outcome Assessment in Pigs
Published on: April 25, 2014
[One-stage PCI of left main stenosis and infarct-related left main major branches in STEMI patients]
Insights
This study found that one-stage percutaneous coronary intervention (PCI) for left main coronary artery (LMCA) and infarct-related vessels in ST-elevation myocardial infarction (STEMI) is effective and safe. Long-term results show a 60.7% MACCE-free survival, indicating a promising treatment option.
Area of Science:
- Cardiology
- Interventional Cardiology
- Acute Coronary Syndromes
Context:
- ST-elevation myocardial infarction (STEMI) is a critical condition requiring rapid intervention.
- Left main coronary artery (LMCA) disease poses significant risks.
- Percutaneous coronary intervention (PCI) is a primary treatment modality.
Purpose:
- To evaluate the immediate and long-term outcomes, safety, and efficacy of a single-stage PCI procedure.
- To assess PCI of the LMCA combined with the infarct-related artery (LAD or CxA) in STEMI patients.
- To analyze procedural success, mortality, and revascularization rates.
Summary:
- 81 STEMI patients underwent one-stage PCI of LMCA and infarct-related LAD or CxA, primarily using drug-eluting stents and radial access.
- Short-term mortality was 4.9%, with persistent angina in 33.3% requiring further PCI.
- Long-term follow-up (32-39 months) showed an 8.6% mortality rate and 12.3% target lesion revascularization, with 60.7% MACCE-free survival.
Impact:
- One-stage PCI of LMCA and infarct-related artery appears to be a safe and effective strategy for STEMI.
- The findings support this approach, though larger studies are needed for definitive conclusions.
- This research contributes to optimizing treatment protocols for complex STEMI cases involving the LMCA.
Aims:
to determine immediate and long-term results, safety and efficacy of one-stage PCI of LMCA and infarct-related LAD or CxA in STEMI.
Methods:
81 patients with STEMI treated with one-stage PCI of LMCA and infarct-related LAD or CxA were included into the study. LAD was infarct-related in 53 (65.4%) patients, circumflex (CxA) involved in 28 (34.6%) cases. Distal LMCA lesion was in 45 patients (55.6%).
Results:
All patients were treated with drug-eluting stents. Radial access was used in 66 (81.4%) cases, in 38 (46.9%) patients intra-aortic balloon contrapulsation supported the procedure. IVUS was performed in 19 (23.4%) patients. Mortality during the procedure was 2.5% (2 patients with cardiogenic shock owing to infarct-related LAD). All other cases were technically successful. Two more patients died during the hospitalization, so short-term mortality was 4.9%. Angina symptoms persisted in 27 patients (33.3%) and were due to lesions in other coronary arteries. In these cases, the second PCI was performed. The mean follow-up period was 32-39 months. During follow-up 7 patients (8.6%) died due to various reasons. Target lesion revascularization was performed in 10 (12.3%) patients, including 3 repeated PCI of LMCA. Repeated revascularization due to atherosclerosis progression in other segments was done in 11 (13.5%) patients. MACCE-free survival was 60.7%.
Conclusions:
one-stage PCI of LMCA and infarct-related LAD or CxA seems to be effective and safe treatment in patients with STEMI but larger studies with prolonged follow-up are needed.
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