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Updated: Oct 26, 2025

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation
23:33

The WATCHMAN Left Atrial Appendage Closure Device for Atrial Fibrillation

Published on: February 28, 2012

84.0K

Spontaneous Left Atrial Thrombus Formation on the Catheter Delivery System During WATCHMAN Implantation

Hiren Patel1, Luis R Castellanos2, Eugene Golts3

  • 1Division of Cardiovascular Medicine, Advanced Cardiac Imaging Fellowship Program, University of California-San Diego, La Jolla, California.

JACC. Case Reports
|July 28, 2021
PubMed

Insights

A rare complication of spontaneous thrombus formation on the WATCHMAN delivery system occurred in both systemic circulations. Percutaneous vacuum-assisted aspiration successfully removed the thrombus, highlighting a multidisciplinary team approach.

Area of Science:

  • Cardiovascular Medicine
  • Interventional Cardiology
  • Medical Device Complications

Background:

  • The WATCHMAN device is used for left atrial appendage closure.
  • Complications associated with cardiovascular devices require careful management.
  • Spontaneous thrombus formation is a potential, albeit rare, adverse event.

Keywords:
ACT, activated clotting timeAngioVac systemLAA, left atrial appendageTEE, transesophageal echocardiogramWATCHMAN deviceatrial fibrillationthrombus

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