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Watchman Implant

Medically reviewed by Last updated on Jun 5, 2024.

What do I need to know about the Watchman® implant?

The Watchman implant is a permanent heart device. The implant is designed to prevent blood clots caused by atrial fibrillation (A-fib) from getting into the bloodstream. A-fib prevents the heart from pumping blood correctly. Blood that is not pumped out may pool in a part of the heart called the left atrial appendage. Blood clots may form in the pooled blood. If a clot moves out of the appendage and into the bloodstream, it can cause a stroke. The implant closes off the appendage to prevent clots from moving into the bloodstream. This helps lower your risk for a stroke.

Heart Chambers

How do I prepare for the implant to be placed?

What will happen during the procedure?

What should I expect after the procedure?

What are the risks of the Watchman implant?

Your heart may be punctured during the procedure. You may have an air embolism (air or bubbles block a blood vessel). An air embolism can cause a stroke. The device may cause a clot to form and move into your bloodstream. The device may not cover the whole atrial appendage. A gap can allow blood clots to leave the atrial appendage and move into your bloodstream. It may take longer than expected for your body to heal over the device. You may have an allergic reaction to the implant. Your heart may develop an irregular rhythm. You may develop a fistula (abnormal opening between 2 areas). You may bleed more than expected or have brain, groin, or stomach bleeding. Your blood pressure may drop too low. You may develop an infection or pneumonia.

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.