SVT

Question 1

Define SVT.

Answer 1

Group of tachyarrhythmias originating above the ventricles, typically characterised by rapid heart rates (usually >100 bpm) and regular narrow QRS complexes.

Question 2

Types of SVT.

Answer 2

Common types of SVT include:

1. Atrioventricular nodal re-entrant tachycardia (AVNRT).
2. Atrioventricular re-entrant tachycardia (AVRT).
3. Atrial tachycardia.
4. Atrial flutter.

Question 3

Most common type of SVT.

Answer 3

AVNRT.

Question 4

Prevalence of SVT

Answer 4

2-3 per 1,000.

Question 5

First-line medication for termination of AVNRT/AVRT.

Answer 5

Adenosine. Rapid IV push with saline flush.

Question 6

Definitive treatment for recurrent symptomatic SVT (success rate >95% for AVNRT and AVRT).

Answer 6

Catheter ablation.