Chapter 3
Oversensing
Signals the device should not have counted: T wave and myopotential oversensing, lead noise, electrocautery, and the algorithms that tell a real arrhythmia from an artefact.
The cases
1A special kind of plot2Oversensing and risk of sudden death3Which programming option should be used if the T wave is oversensed?4The unexpected behaviour of an algorithm5Use of a specific algorithm6Oversensing and integrated bipolar mode7Electric shock during a barbecue8An unexpected cause of syncope9Shock during surgery10Ventricular cycles too short to be physiological11Telemedicine monitoring to avoid disasters12The benefits of induction at the end of implantation13Use of an algorithm to avoid inappropriate therapies14A characteristic feature on the EGM
From Medtronic ICD — clinical cases by P. Bordachar, A. Thiyagarajah, L. Fontagne, M. Strik, S. Ploux. Published by Cardiocases. Every numbered marker on a recording is explained in the list beneath it; tap a marker on the trace or an entry in the list.
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