Arrhythmia

Arrhythmias are disorders of heart rhythm that result from abnormal electrical activity within the cardiac conduction system. The video introduces arrhythmia as a broad category rather than a single condition. Understanding rhythm disturbances begins with recognizing how normal cardiac signaling functions. Disruptions can range from benign to life-threatening.

Common arrhythmia types are reviewed, including atrial fibrillation, supraventricular tachycardia, and ventricular arrhythmias. The discussion explains how rate, rhythm regularity, and origin influence clinical significance. Symptoms such as palpitations, dizziness, and syncope are discussed alongside asymptomatic presentations. Clinical context determines urgency.

Diagnostic tools such as ECGs, ambulatory monitoring, and laboratory evaluation are outlined. The video emphasizes that identifying triggers and underlying causes is central to management decisions. Rather than focusing on labels alone, pattern recognition is emphasized. The close reinforces structured evaluation as the foundation of arrhythmia care.