Left main coronary stenosis: surgery still reigns
Marc Ruel1, Hidetake Kawajiri, David Glineur
1aDivision of Cardiac Surgery, University of Ottawa Heart Institute, Ottawa, Ontario, CanadabDepartment of Cardiothoracic Surgery, Weill-Cornell Medical Center, New York City, New York, USAcDepartment of Surgery, Division of Cardiac Surgery, St. Michael's Hospital, Toronto, Ontario, Canada.
Current Opinion in Cardiology
|August 11, 2017
Summary
Percutaneous coronary intervention (PCI) for unprotected left main coronary artery (ULMCA) stenosis shows conflicting results. Further data are needed to confirm PCI
Area of Science:
- Cardiology
- Interventional Cardiology
Background:
- Coronary artery bypass grafting (CABG) is the standard treatment for unprotected left main coronary artery (ULMCA) stenosis.
- Recent trials, including the EXCEL trial, have questioned the superiority of CABG over percutaneous coronary intervention (PCI) for ULMCA stenosis.
Purpose of the Study:
- To critically appraise recent randomized control trials (RCTs) evaluating PCI versus CABG for ULMCA stenosis.
- To address the discrepancy in findings between major RCTs on ULMCA revascularization.
Main Methods:
- Review and critical appraisal of published randomized control trials.
- Comparative analysis of study designs and endpoints in key ULMCA revascularization trials.
Main Results:
- The EXCEL trial suggested PCI non-inferiority to CABG for ULMCA stenosis.
- The Nordic-Baltic-British Left Main Revascularization trial indicated PCI inferiority to CABG for ULMCA stenosis.
- Discrepancies may stem from differing study designs, myocardial infarction definitions, and endpoint selections.
Conclusions:
- Long-term efficacy of PCI for ULMCA stenosis remains unproven.
- Further research and long-term follow-up are necessary before expanding PCI indications for ULMCA stenosis.
Related Concept Videos
01:26Mitral Stenosis III: Medical Management
345
Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
345
01:27Coronary Artery Disease V: Interprofessional Care
325
Interprofessional care for coronary artery disease includes pharmacological therapy and revascularization procedures.Pharmacological therapy for Coronary Artery Disease (CAD) aims to manage symptoms, prevent complications, and improve patient outcomes through various classes of medications:Antiplatelet Agents:Aspirin and Clopidogrel: These medications inhibit platelet aggregation, preventing blood clots, which is crucial for avoiding heart attacks and strokes. Doctors often prescribe these...
325
01:26Angina IV: Management
347
IntroductionThe management of angina requires a comprehensive approach that includes pharmacological therapies, medical procedures, and lifestyle modifications.Pharmacological TherapiesAntiplatelet agents, such as aspirin, clopidogrel, prasugrel, and ticagrelor, play a pivotal role in preventing thrombus formation in patients with angina. These medications inhibit platelet aggregation and reduce the likelihood of myocardial infarction and other cardiovascular events.Anticoagulants, including...
347
01:29Cardiomyopathy V: Interprofessional Care
520
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...
520
01:28Acute Coronary Syndrome IV: Interprofessional Care
332
IntroductionThe management of Acute Coronary Syndrome (ACS) aims to minimize myocardial damage, preserve myocardial function, and prevent complications.Initial ManagementInpatient management involves continuous cardiac monitoring, preferably in an ICU, focusing on blood pressure, serum sodium, potassium, and creatinine levels, and urine output. Ongoing pharmacologic management is crucial for stabilizing the patient.Supplemental Oxygen: Administer supplemental oxygen if oxygen saturation is...
332
01:24Cardiac Catheterization III: Left Heart Catheterization
848
Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
848