(FIT)-Module 5 Workshop 8: Device Cases-Poole Case 5 Answer

Video Transcription

Video Summary

The correct answer is C, inappropriate ICD therapy due to atrial undersensing. The patient has rapid atrial fibrillation with some tachycardia sensing and pacing. Inappropriate pacing occurs because the device undersenses the atrial fibrillation. This affects the device's SVT versus VT discrimination, leading it to mistakenly identify more ventricular events (Bs) than atrial events (As), causing inappropriate therapy delivery. The electrograms indicate the device misclassification, not supported by the other options.

Keywords

inappropriate ICD therapy

atrial undersensing

atrial fibrillation

SVT vs VT discrimination

electrogram misclassification