Watchman device

Watchman device is a permanent left atrial appendage closure device, which is percutaneously implanted to prevent embolisation of thrombus from the appendage into the systemic circulation in cases atrial fibrillation. It is used when there is contraindication to anticoagulation or high risk of lifelong use of anticoagulants.


Watchmen device consists of titanium frame and plastic cap. It resembles 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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Article information

rID: 44400
System: Cardiac
Synonyms or Alternate Spellings:
  • Watchman left atrial appendage closure device
  • Watchman device - left atrial appendage

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Cases and figures

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