Pages tagged: arrhythmia

Atrial Fibrillation

Fibrillation, the most serious form of arrhythmia (heart rhythm disorder), is fast, uncoordinated beats, which are contractions of individual heart-muscle...

Bundle Branch Block

Your heart has a natural “pacemaker” called the sinoatrial (SA) node which sends an electrical impulse throughout your heart to...

Atrial Septal Defect

A septal defect is a hole in the septum, the muscle wall separating the chambers of the heart. A septal...

A Heart Surgery Overview

Two major advances in medicine made heart surgery possible: The heart-lung machine, which takes over the work of the heart. Body cooling techniques, which allow more time for surgery without causing brain damage.

Categories of Arrhythmias

Ventricular arrhythmias occur in the lower chambers of the heart, called the ventricles. Supraventricular arrhythmias occur in the area above...

Holter Monitoring

The Holter monitor can record heart rate and rhythm when you feel chest pain or symptoms of an irregular heartbeat...

Sick Sinus Syndrome

Electrical impulses from your heart muscle cause your heart to beat (contract). This electrical signal begins in the sinoatrial node,...