<unk>  <unk>  is a supraventricular tachyarrhythmia characterized by uncoordinated<unk>  activation leading to an irregularly irregular rhythm and absent P waves on ECG.  It is characterized by palpitations, dyspnea, chest discomfort, syncope, etc. and can be triggered by a number of conditions.  It can be a serious life threatening disorder as the irregular<unk>  rhythm with rate of 400-700 beats/min may transpire into a rapid ventricular rhythm eventually leading to ventricular<unk> ilure.  It can occur in a heart with underlying structural heart defect or in a structurally normal heart.  Treatment of<unk>  depends on hemodynamic status of the patient.  If unstable, rapid DC cardioversion is attempted, otherwise rate control and anticoagulation are the treatment of choice, followed by antiarrhythmic therapy.
Atrial fibrillation
Atrial flutter
Sinus arrhythmia
Ventricular flutter
Supraventricular tachycardia
Ectopic atrial rhythm
Paroxysmal atrial fibrillation
Torsades de pointes