Heart Rhythm Disorders Topic Guide
Heart Rhythm Disorders (Arrhythmias): Heart rhythm disorders are conditions that causes changes in the normal heartbeat. These disorders, collectively known as arrhythmia, may be caused by abnormalities in the electric nerve impules that regulate the heartbeats, among other causes.
Electrocardiogram (ECG, EKG) The electrocardiogram (ECG or EKG) is a diagnostic tool that measures and records the electrical activity of the heart in exquisite detail.
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