What is the Watchman Device?
The Watchman device is a small, permanent implant about the size of a quarter, designed to reduce the risk of stroke in patients with non-valvular atrial fibrillation (AFib). In most people with AFib, more than 90% of stroke-causing blood clots form in a small pouch in the heart called the left atrial appendage (LAA). The Watchman device is implanted to permanently seal off this pouch, preventing clots from escaping into the bloodstream — offering lasting stroke protection without the need for long-term blood-thinning medication.
Who is a Candidate for the Watchman Device?
The Watchman device is an excellent option for AFib patients who need stroke protection but face challenges with long-term anticoagulation therapy. Ideal candidates include patients who:
Have non-valvular atrial fibrillation
Are recommended for blood thinners but have difficulty tolerating them
Have experienced bleeding complications on anticoagulants
Have a high risk of falls or injury
Have lifestyle factors making blood thinner use difficult
Prefer a permanent, one-time solution over daily medication
How is the Watchman Device Implanted?
The procedure is minimally invasive and does not require open-heart surgery. Here is what to expect:
1
The procedure is performed under general anesthesia in a hospital cardiac catheterization lab, typically taking about one hour.
2
A thin, flexible catheter is inserted through a small puncture in the upper leg vein and guided up to the heart using real-time imaging.
3
The catheter crosses a thin wall between the heart's upper chambers (the septum) to reach the left atrial appendage.
4
The Watchman device is carefully deployed to seal the opening of the left atrial appendage, preventing blood clots from forming inside it.
5
Most patients go home the following day. Over 45 days, heart tissue grows over the device, permanently sealing the appendage.
Key Benefits
Stroke Risk Reduction
Clinically proven to reduce stroke risk as effectively as long-term blood thinners in eligible patients
One-Time Procedure
A single implant provides permanent protection — no ongoing medication adjustments required
Eliminate Blood Thinners
Most patients are able to stop taking blood thinners within 45 days of the procedure
Minimally Invasive
No open-heart surgery — performed via catheter with a short hospital stay and rapid recovery
Frequently Asked Questions
How does the Watchman device compare to blood thinners?
Clinical studies have shown the Watchman device is as effective as warfarin (a common blood thinner) for stroke prevention in eligible AFib patients, while eliminating the bleeding risks and lifestyle restrictions associated with long-term anticoagulation therapy.
Will I need to take blood thinners after the procedure?
Yes, but only temporarily. Most patients take a blood thinner for approximately 45 days after implantation while heart tissue grows over the device. Once the device is fully sealed, a follow-up imaging study confirms closure and most patients can then safely stop blood thinners.
Is the Watchman device MRI compatible?
Yes. The Watchman device is MRI-conditional and is safe for use in MRI environments under specified conditions. Your care team will provide guidance before any imaging procedure.
What is the recovery like after the procedure?
Recovery is typically quick. Most patients spend one night in the hospital and return to normal daily activities within a few days. Strenuous physical activity should be avoided for about a week. Follow-up appointments are scheduled to monitor healing and confirm successful device closure.
Find Out if the Watchman Device is Right for You
Our heart rhythm specialists will evaluate your condition and determine whether the Watchman device is the best path to long-term stroke protection for you.
Living with the Watchman Device
Once the Watchman device has fully healed and been confirmed closed by imaging, most patients experience a significant improvement in their quality of life. The freedom from daily blood thinner medication eliminates the need for frequent blood monitoring, dietary restrictions, and concerns about bleeding risks. The device is permanent, requires no charging or maintenance, and patients typically forget it is there. With regular follow-up visits to monitor heart rhythm and overall cardiac health, patients with the Watchman device enjoy lasting stroke protection and greater peace of mind every day.
