What is a heart watchman? The WATCHMAN implant device is about the size of a quarter and shaped like a parachute. It is implanted into the heart to close off the left atrial appendage (LAA), a blind pouch of heart tissue to prevent blood clots from forming and causing a stroke.
What does the watchman do? Reduces stroke by preventing blood clots from forming in the left atrial appendage. The procedure is minimally invasive. You do not have to have your chest opened. Recovery tends to be quicker and easier than with open surgery.
How serious is a watchman procedure? Although the procedure is minimally invasive and effective, some people may experience complications during or following the procedure. Risks and complications associated with the Watchman procedure include: Cardiac tamponade. Accidental heart puncture.
What happens during Watchman procedure? During the Watchman procedure, a small, fabric-covered device is permanently placed in the opening of your LAA to prevent harmful blood clots from exiting and entering your bloodstream. The device is made of materials that are well tolerated by most patients.