The comedian, who died Tuesday at 67, was dealing with "a very specific, rare genetic disorder," cardiologist Dr. Jennifer Haythe tells PEOPLE Julie Mazziotta is the Senior Sports Editor at PEOPLE, ...

Q: I was feeling lightheaded and having palpitations, went to the ER and was admitted to the ICU. They said I had a run of ventricular tachycardia. What is this? A: The heartbeat is controlled by ...

Q: I was feeling lightheaded and having palpitations, went to the ER and was admitted me to the ICU. They said I had a run of ventricular tachycardia. What is this? A: The heartbeat is controlled by ...

Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT) is a rare genetic ventricular tachycardia which can result in sudden cardiac death and/or syncope in young individuals with structurally ...

Wide complex tachycardia is a general term that refers to conditions that cause an unusually fast heart rate and a particular pattern on an EKG. Tachycardia is when your heart beats unusually fast, ...