[Stenosis of the left coronary trunk. Apropos of fifteen cases]
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Updated: Oct 24, 2026

Murine Left Anterior Descending (LAD) Coronary Artery Ligation: An Improved and Simplified Model for Myocardial Infarction
Published on: April 2, 2017
Insights
Left main trunk stenosis, a serious coronary artery condition, was found in 2.6% of patients. Early surgical intervention significantly improves survival rates for those diagnosed with this critical narrowing.
Area of Science:
- Cardiology
- Vascular Surgery
Background:
- Left main trunk (LMT) stenosis is a critical condition in coronary artery disease.
- Selective coronary angiography is a diagnostic tool for assessing coronary anatomy.
Observation:
- 15 out of 567 patients (2.6%) investigated showed LMT stenosis.
- No total occlusion of the LMT was observed, and the angiography procedure had no fatalities.
- Atheromatous lesions were commonly present in other coronary vessels.
Findings:
- Of 5 non-operated patients, 3 died within 14 months (60% mortality).
- Among 10 surgically treated patients, there was no operative mortality, but 2 (20%) died postoperatively.
- The 8 surviving patients, followed for a mean of 36 months, showed significant clinical improvement and are alive.
Implications:
- Early surgical intervention for LMT stenosis is crucial for improving patient survival.
- Prompt diagnosis and treatment can lead to favorable long-term outcomes.
- LMT stenosis management requires careful consideration of surgical risks versus benefits.
Abstract:
Stenosis of the left main trunk was revealed by selective coronary angiography in 15 patients among the 567 who were investigated (2.6%). No case of total occlusion was observed. There was no fatality due to the procedure. As a rule other coronary vessels also show atheromatous lesions. Five patients were not operated: 3 died (60%) after a mean survival period of 14 months following angiography. Among the 10 others who underwent surgery there was no operative mortality, but 2 patients died in the postoperative period (20%). The 8 survivors have been followed for a period ranging from 8 to 61 months (mean: 36 months). All are still alive and much improved clinically. Once the diagnosis of left main trunk stenosis has been established, early surgery should be considered.
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