The 100 left atrial appendage closures were performed with a device called the Watchman that treats people with the heart condition atrial fibrillation. LLUMC – Murrieta is the first and only center to reach this milestone in the southwest Riverside County community in record time. Atrial fibrillation (AFib) is a type of condition characterized by […] Source: https://atoday.org/100-patients-at-llumc-murrieta-have-benefited-from-minimally-invasive-surgery-to-treat-atrial-fibrillation/