As has happened with you, not everyone with A-fib develops symptoms. Symptoms can include a fast and irregular pulse, a fluttery sensation in the chest, general fatigue, unusual fatigue when ...

Each side of the heart consists of an atrium and a ventricle which are two connected chambers. The atria (plural of atrium) are where the blood collects when it enters the heart. The ventricles ...

During a recent episode of the podcast "SmartLess," Will Arnett said co-host Sean Hayes was admitted into hospital twice in one night.

AFib means that the heart’s upper chambers (known as the atria), beat out of synch with the lower chambers (known as the ventricles). When this happens, not all blood gets pumped out of the heart.

node. This co-ordinates the normal sequence of beating of the heart's upper and lower chambers (the atria and ventricles).