Related Experiment Video
Updated: Oct 24, 2026

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Immediate and long-term results of elective and emergent percutaneous interventions on protected and unprotected
E C Keeley1, D Aliabadi, W W O'Neill
1Department of Internal Medicine, William Beaumont Hospital, Royal Oak, Michigan 48073, USA.
Insights
Percutaneous revascularization of the left main coronary artery shows good initial outcomes but carries significant long-term risks. These include repeat interventions, heart attack, bypass surgery, and a high mortality rate.
Area of Science:
- Interventional Cardiology
- Cardiovascular Medicine
- Vascular Surgery
Background:
- Left main coronary artery disease (LMCAD) is a critical condition requiring effective revascularization.
- Percutaneous coronary intervention (PCI) is an alternative to coronary artery bypass grafting (CABG) for LMCAD.
Purpose of the Study:
- To evaluate the long-term outcomes of percutaneous revascularization for protected and unprotected left main coronary arteries.
Main Methods:
- Retrospective analysis of patients undergoing percutaneous revascularization for left main coronary artery disease.
- Assessment of procedural success, major adverse cardiac events, and long-term clinical follow-up.
Main Results:
- Percutaneous revascularization demonstrated acceptable immediate results.
- Significant long-term adverse events were observed: 10% repeat PCI, 7.5% myocardial infarction, 7% CABG, and 38% mortality.
Conclusions:
- While PCI of the left main coronary artery offers immediate benefits, long-term outcomes are associated with substantial risks.
- The high rate of major adverse cardiac events and mortality warrants careful consideration of treatment strategies for LMCAD.
Abstract:
Percutaneous revascularization of protected and unprotected left main coronary arteries is associated with acceptable immediate results, but there are significant long-term consequences, including the need for repeat percutaneous intervention (10%), myocardial infarction (7.5%), coronary artery bypass surgery (7%), and death (38%), despite the elective or emergent nature of the procedure.
Related Concept Videos
Coronary Artery Disease V: Interprofessional Care
Acute Coronary Syndrome IV: Interprofessional Care
Cardiac Catheterization III: Left Heart Catheterization
Peripheral Artery Disease III: Interprofessional Care
Acute Coronary Syndrome I: Introduction
Cardiac Catheterization I: Pre-Procedure Overview
