Citation, DOI, disclosures and article data
Citation:
Khader.O.Thabet M, Hacking C, Silverstone L, et al. Watchman device. Reference article, Radiopaedia.org (Accessed on 30 Mar 2025) https://doi.org/10.53347/rID-44400
Disclosures:
At the time the article was last revised Craig Hacking had the following disclosures:
- Philips Australia, Paid speaker at Philips Spectral CT events (ongoing)
These were assessed during peer review and were determined to
not be relevant to the changes that were made.
View Craig Hacking's current disclosures
Watchman device is a permanent left atrial appendage closure device, which is percutaneously implanted to prevent embolization of thrombus from the appendage into the systemic circulation in cases of atrial fibrillation. It is used when there is a contraindication to anticoagulation or high risk associated with lifelong use of anticoagulants.
Components
Watchman device consists of a titanium frame and plastic cap. It resembles a deployed round parachute.
Radiographic features
On post-contrast cross sectional imaging no contrast opacification of the left atrial appendage is characteristic.
See also
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1. Abbara S, Kalva SP. Problem Solving in Radiology: Cardiovascular Imaging. Saunders. (2013) ISBN:1437727689. Read it at Google Books - Find it at Amazon
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2. Price MJ. Left atrial appendage occlusion with the WATCHMAN™ for stroke prevention in atrial fibrillation. Rev Cardiovasc Med. 2014;15 (2): 142-51. Pubmed citation
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3. Holmes DR, Kar S, Price MJ et-al. Prospective randomized evaluation of the Watchman Left Atrial Appendage Closure device in patients with atrial fibrillation versus long-term warfarin therapy: the PREVAIL trial. J. Am. Coll. Cardiol. 2014;64 (1): 1-12. doi:10.1016/j.jacc.2014.04.029 - Pubmed citation
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