John M. Miller MD FACC


Pacemaker for Bradycardia

Discusses pacemakers used to treat bradycardia. Discusses various types of pacemakers. Covers how they work and how well they work, risks, and possible side effects.

Pacemaker

A pacemaker is a small, battery-powered device that sends out small electrical impulses to make the heart muscle contract. Pacemakers help your heart beat in a regular rhythm and at a normal speed. They are inserted to treat a heart rate that is too slow, too fast, or irregular. The pacemaker itself consists of a pulse…

Paroxysmal Atrial Fibrillation

Paroxysmal atrial fibrillation is a type of atrial fibrillation, an irregular heart rhythm. Paroxysmal means that the atrial fibrillation episodes last 7 days or less. The episodes may go away on their own or they go away after treatment. Typically, over time, episodes of paroxysmal atrial fibrillation come on more…

Types of Bradycardia

There are several types of slow heart rates ( bradycardias or bradyarrhythmias). Each type carries a specific risk of complications and treatment options. Some of the types are described here. Sinus bradycardia When a person has sinus bradycardia, the heart rate is less than 60 beats per minute. This slow heart rate…