( فعل الترجمه التلقائيه للغه العربيه من ضمن اعدادات الفديو )
supraventricular tachycardia SVT ( English ) ECG
is an abnormally fast heart rhythm arising from improper electrical activity in the upper part of the heart. There are four main types: atrial fibrillation, paroxysmal supraventricular tachycardia (PSVT), atrial flutter, and Wolff–Parkinson–White syndrome. Symptoms may include palpitations, feeling faint, sweating, shortness of breath, or chest pain