
Keywords: تاکیکاردی اکستوپی دهلیزی; AET; atrial ectopic tachycardia; AV; atrioventricular; ECG; electrocardiogram; PJRT; permanent junctional reciprocating tachycardia; SVT; supraventricular tachycardia; VA; ventriculoatrial; Fetus; Arrhythmia; Supraventricular tachycardia; Flecainide;