(FIT)-Module 2 Workshop 3: SVT Mechanisms and Maneuvers-Miles Case 5 Answer

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Video Summary

Mid-septal accessory pathways pose a high risk for AV block, requiring careful RF ablation. Enhancing catheter stability through high-frequency, low-tidal volume ventilation or breath-holding under general anesthesia is crucial. Ablation should begin with low power and avoid energy delivery during ventricular pacing to monitor AV conduction. Ablation on the ventricular annulus side minimizes risks, focusing on large ventricular potentials. QRS widening during RF delivery signals AV node impact, not success, indicating a need to stop. Monitoring AV conduction is essential, and catheter bumps can confirm pathway locations.

Keywords

mid-septal accessory pathways

AV block risk

RF ablation technique

catheter stability

AV conduction monitoring