(FIT)-Module 3 Workshop 4: SVT and VT Invasive and Non-Invasive Correlation-Miles Case 6 Answer

Video Transcription

Video Summary

The video discusses the phenomenon of dormant conduction over an accessory pathway, facilitated by adenosine. Typically, adenosine slows the AAV node, revealing latent pre-excitation without change in the stimulus to delta interval. However, in this case, adenosine improves conduction over a dormant, injured accessory pathway, as evidenced by a decrease in the stimulus to delta interval. This phenomenon can reveal dormant conduction similar to its use in testing pulmonary vein isolation or CAVO tricuspid isthmus lines. Ablation followed by adenosine administration showed no recurrence of dormant conduction, indicating successful treatment.

Keywords

dormant conduction

accessory pathway

adenosine

pre-excitation

ablation success