Editor's note: Find the latest COVID-19 news and guidance in Medscape's Coronavirus Resource Center. College athletes who have recently recovered from COVID-19 infection show cardiac abnormalities on ...

Lengthening of what is called the PR interval, the right-hand portion of the jagged blip that records electrical activity as the heart contracts and expands, was associated with a doubled risk of ...

A common heart abnormality often seen of electrocardiograms that has long been thought to be inconsequential is actually associated with a substantially increased risk of erratic heartbeats or a need ...