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Related Concept Videos

Cardiac Catheterization III: Left Heart Catheterization01:24

Cardiac Catheterization III: Left Heart Catheterization

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...
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...

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Related Experiment Video

Updated: Jul 11, 2026

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
13:10

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)

Published on: April 24, 2017

Left main coronary artery stenosis.

B Janek1, I Málek, R Ouhrabková

  • 1Institute for Clinical and Experimental Medicine, Prague, Czechoslovakia.

Cor Et Vasa
|January 1, 1992
PubMed
Summary
This summary is machine-generated.

Patients with significant left main coronary artery stenosis often have multiple risk factors and severe symptoms. Surgical intervention offers improved outcomes, with most patients experiencing symptom relief post-operation.

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Left Coronary Artery Ligation: A Surgical Murine Model of Myocardial Infarction
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Left Coronary Artery Ligation: A Surgical Murine Model of Myocardial Infarction

Published on: August 9, 2022

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Vascular Medicine

Background:

  • Left main coronary artery (LCA) stenosis is a critical condition.
  • Patients with LCA stenosis frequently present with multiple cardiovascular risk factors and a history of ischemic heart disease.
  • Significant symptomatology, including severe angina and exercise intolerance, is common in this patient group.

Purpose of the Study:

  • To evaluate the clinical characteristics and outcomes of patients with significant left main coronary artery stenosis.
  • To assess the efficacy of surgical management versus conservative therapy in this high-risk population.

Main Methods:

  • Retrospective study of 50 patients with at least 50% LCA stenosis from 888 coronary arteriographies.
  • Analysis of patient demographics, risk factors, symptomatology, coronary angiography findings, and treatment outcomes.
  • Comparison of outcomes between surgically treated patients and those receiving conservative therapy.

Main Results:

  • 96% of patients presented with NYHA Class III or higher angina pectoris.
  • 84% of patients were suitable for surgical management, with a 4.8% hospital mortality rate.
  • Long-term follow-up showed 59.9% of surgically treated patients were symptom-free, while conservative therapy had poorer outcomes.

Conclusions:

  • Significant LCA stenosis is associated with severe symptoms and multiple comorbidities.
  • Operative management is feasible in the majority of these patients and leads to favorable long-term outcomes.
  • Surgical intervention appears superior to conservative management for patients with significant LCA stenosis and preserved left ventricular function.