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Cardiac Catheterization III: Left Heart Catheterization

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...

Acute Coronary Syndrome I: Introduction

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 II: Pathophysiology and Clinical Manifestations

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The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...

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Related Experiment Video

Updated: May 13, 2026

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

Published on: February 28, 2012

ST-Segment Elevation During Percutaneous Left Atrial Appendage Closure.

Tatsuro Shoji¹, Yukio Sato¹, Daisuke Togashi¹

¹Department of Cardiology, St. Marianna University School of Medicine, Kanagawa, Japan.

JACC. Case Reports

|February 21, 2024

Summary

Left atrial appendage closure for atrial fibrillation can cause coronary artery compression, leading to procedure abandonment. This complication was identified by ECG and echocardiography findings in a 70-year-old patient.

Area of Science:

Cardiology
Interventional Cardiology
Cardiac Imaging

Background:

Atrial fibrillation is a common arrhythmia requiring stroke prevention.

Keywords:

Watchman device left atrial appendage closure paroxysmal atrial fibrillation

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Last Updated: May 13, 2026

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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation

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Published on: February 26, 2013

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

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Published on: February 8, 2022

Left atrial appendage closure is an alternative to anticoagulation for stroke risk reduction.

Device-related complications, though rare, require careful monitoring.