Supraventricular tachycardia (SVT)
Supraventricular tachycardia (SVT) is typically a narrow-complex regular arrhythmia with an abrupt onset and termination.Vagal stimulation is the first-line treatment for an episode of acute SVT. If vagal stimulation is ineffective, the patient should be given adenosine. Patients with recurrent episodes of SVT should be referred to a cardiologist with expertise in arrhythmia management (cardiac electrophysiologist); catheter ablation therapy is a curative treatment form and it has superseded drug therapy in the prophylactic treatment of SVT. Wolff-Parkinson-White (WPW) syndrome must be diagnosed and the patient always referred for specialist management.