Regional Medical Center Bayonet Point will host a lecture called “Watchman: What Everyone Needs to Know About Atrial Fibrillation and Stroke” on June 16. Dr. Keshav Ramireddy will present the lecture at Fox Hollow, 10050 Robert Trent Jones Parkway in Trinity. Registration begins at 5 p.m., followed by a complimentary dinner at 5:30 p.m. Admission is free. Reservations are required. For information, call (727) 869-5498.