The Watchman is a one-time procedure designed to help reduce stroke risk in people with atrial fibrillation, a condition that can increase stroke risk by about five times. It is often recommended for patients who have a higher stroke risk score, such as a CHADSVASc score above 3, or for those who may be at greater risk of bleeding with long-term blood thinner use. The device works by sealing off the left atrial appendage, which is where many stroke-causing clots can form. For many patients, it provides stroke protection that is comparable to oral anticoagulants, while avoiding the need for lifelong blood thinners. Interventional cardiologist, Dr. Nadish Garg, per- formed the first Left Atrial Appendage Occlusion (LAAO) device therapy procedure on a patient with atrial fibrillation (AFib) at Memorial Hermann South- east Hospital on Jan. 10. The device is an alternative to the lifelong use of blood thinners for people with AFib not caused by a heart valve problem.