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Related Concept Videos

Cardiac Catheterization III: Left Heart Catheterization01:24

Cardiac Catheterization III: Left Heart Catheterization

359
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...
359

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Related Experiment Video

Updated: Nov 27, 2025

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
28:13

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Percutaneous left atrial appendage occlusion.

Moghniuddin Mohammed1,2, Sagar Ranka1, Madhu Reddy1

  • 1Department of Cardiovascular Medicine, The University of Kansas Medical Center, Kansas City, Kansas.

Current Opinion in Cardiology
|December 2, 2020
PubMed
Summary
This summary is machine-generated.

Left atrial appendage occlusion (LAAO) is a safe and effective long-term therapy for nonvalvular atrial fibrillation patients unable to use oral anticoagulation. Recent trials show LAAO is noninferior to direct oral anticoagulants.

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Area of Science:

  • Cardiology
  • Medical Devices
  • Interventional Cardiology

Background:

  • Left atrial appendage occlusion (LAAO) offers an alternative anticoagulation strategy.
  • Growing evidence supports LAAO for patients ineligible for long-term oral anticoagulation (OAC).

Purpose of the Study:

  • Review recent evidence on long-term safety and efficacy of LAAO.
  • Evaluate current guideline recommendations for LAAO.
  • Compare LAAO performance against direct oral anticoagulants (DOACs).
  • Assess a recently approved LAAO device.

Main Methods:

  • Review of recent clinical trial data and registry outcomes.
  • Analysis of guideline recommendations.
  • Comparison of LAAO with DOACs based on existing studies.
  • Evaluation of new device performance data.

Main Results:

  • Long-term data confirm LAAO as safe and effective for nonvalvular atrial fibrillation (NVAF) patients.
  • Class IIb recommendation for LAAO in NVAF patients not eligible for long-term OAC.
  • PRAGUE-17 trial: LAAO noninferior to DOACs.
  • PINNACLE FLX trial: improved implant success and closure rates.

Conclusions:

  • Percutaneous LAAO is a promising option for NVAF patients unsuitable for long-term OAC.
  • Further research needed for optimal patient selection and periprocedural antithrombotic regimens.