Paroxysmal Supraventricular Tachycardia

Paroxysmal supraventricular tachycardia (PSVT) is regular, rapid, narrow-complex tachycardia with abrupt onset/offset, most often due to AVNRT or AVRT. Clinical: palpitations, chest discomfort, dizziness. Treatment: acute - vagal maneuvers/adenosine/beta-blocker/CCB; prevention - beta-blocker/CCB; catheter ablation for frequent/symptomatic (curative). Identify mechanism (ECG during tachycardia).

Common Symptoms

Palpitations; regular narrow-complex tachycardia; abrupt onset/offset; by AVNRT/AVRT/SART

Causes and Pathogenesis

Reentry involving AV node/accessory pathway causes regular SVT.

Treatment

Vagal/adenosine acute; beta-blocker/CCB; ablation curative for frequent

Preventive Measures

Ablation curative; avoid stimulants.

Department to Visit

It is recommended to visit the Cardiology/EP department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.