Premature ventricular contraction (PVC) is a type of abnormal heartbeat, or arrhythmia. It happens when the heartbeat begins in the lower, rather than the upper, heart chambers. This creates an ...
Question: I’ve been experiencing heart palpitations a few times a week. They only last seconds, but they’re frightening. Should I be concerned? I am a 32-year-old female. Dr Grant replies: The ...