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

Video Transcription

Video Summary

The speaker discusses over-sensing in cardiac devices, particularly addressing over-sensing due to pectoral muscle and diaphragmatic myo-potentials. Over-sensing occurs when external muscle activity is misinterpreted as cardiac signals, which is not necessarily harmful in some situations, thus no further therapy is indicated. The dialogue covers different scenarios including lead fractures and insulation breaches that can cause such misinterpretations. Electrograms reveal various causes of over-sensing, emphasizing the importance of distinguishing between external muscle signals and actual cardiac events in the differential diagnosis of conductor fractures.

Keywords

over-sensing

cardiac devices

pectoral muscle myopotentials

diaphragmatic myopotentials

lead fractures