Skip to content
ClinCalc Pro
Menu
CardiologyEmergency Medicine

Paroxysmal SVT (AVNRT / AVRT)

Acute termination with vagal manoeuvres + adenosine, identification of AVNRT vs AVRT, definitive ablation pathway.

Source: ESC 2019 SVT; AHA/ACC/HRS 2015

Step 1 of ~6
info

Confirm Narrow-Complex Tachycardia

Sudden-onset palpitations, regular narrow-complex tachycardia (HR usually 150–220). Rule out adverse features (shock, syncope, ischaemia, severe HF) — see peri-arrest tachy pathway. 12-lead ECG ideally captured during episode.

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only. Always apply local guidelines and clinical judgement.