The Texas Cardiac Arrhythmia Institute (TCAI) at St. David's Medical Center has made history as the first in the U.S. to implant an FDA-approved novel leadless system that provides cardiac resynchronization therapy to patients with heart failure. For 65-year-old Tom Derrington, who struggled with severe heart failure symptoms despite having a pacemaker, the procedure has already restored his energy and breathing, giving him renewed strength and hope for the future. Learn more: https://www.stdavi