What Is The Normal Pacemaker Of The Heart What Happens When This Pacemaker Fails?

What Is The Normal Pacemaker Of The Heart What Happens When This Pacemaker Fails? The sinoatrial node is called the heart’s pacemaker. When something goes wrong with the sinoatrial node, you may develop a consistently slow heartbeat What are signs and symptoms of a failure pacemaker? Dizziness, lightheadedness. Fainting or loss of consciousness. Palpitations. Hard