Dr. Ziad Issa has helped author two studies based on a two-phase clinical trial into irregular heartbeats, with an emphasis ...

Atrial fibrillation (AFib) is the most common type of irregular heart rate. It happens when the heart’s upper chambers beat out of coordination with the lower chambers. AFib usually causes a ...

Sinus bradycardia, or a slow heart rate, can be a sign of cardiovascular health in healthy young adults and endurance athletes. It can also be a sign of an underlying condition requiring medical ...

Nurse practitioner Caitlin Massey from Ascension St. John Medical Center explains the symptoms, risks and new treatment ...