Heart arrhythmias are the topic of today's Deseret Morning News/Intermountain Healthcare Hotline.

Cardiovascular surgeon Dr. John R. Doty and cardiologist Dr. Peter Weiss, both of Intermountain Medical Center, will take phoned-in questions from 10 a.m. to noon. All calls are confidential.

From the Salt Lake area, call 236-6061. Elsewhere, the toll-free number is 800-925-8177, but the numbers are only operational during the hotline hours.