Arrhythmia
Arrhythmia, also known as cardiac dysrhythmia, is an irregular heartbeat. It occurs when the electrical impulses that coordinate heartbeats do not function properly, causing the heart to beat too fast (tachycardia), too slow (bradycardia), or with an irregular rhythm. Arrhythmias can be benign or life-threatening, depending on their type, severity, and underlying cause. Diagnosis typically involves electrocardiograms (ECGs) and other cardiac monitoring techniques.