EP Practice Lab · Case 10 of 12

AVNRT vs AVRT: Avoid the Shortcut

ArrhythmiaSynthetic educational caseInstant feedback

A regular SVT has concentric atrial activation and short VA timing.

Synthetic SVT clues• Regular narrow-complex tachycardia• Concentric atrial activation• Short VA timingThese clues support a differential; they do not independently establish mechanism.
Question

What is the best conclusion?

Practice Lab principle

Describe what you observe first. Then connect the observation to mechanism, troubleshooting, or next-step reasoning. Avoid jumping from one clue to a final diagnosis.

Educational scope: All cases are synthetic and simplified. They are designed for conceptual practice, not clinical decision-making or independent procedural guidance.