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Updated: Mar 3, 2026

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
Published on: February 28, 2012
Pitfalls in electrogram interpretation: Subcutaneous cardioverter defibrillator malfunction in Brugada syndrome
Giovanni Morani1, Bruna Bolzan1, Luca Tomasi1
1Department of Cardiology, Azienda Ospedaliera Universitaria Integrata Verona, Verona, VR, Italy.
Abstract:
A patient with Brugada syndrome implanted with subcutaneous implantable cardioverter defibrillator (S-ICD) had oversensing episodes treated with S-ICD shocks. Comparable artifacts were not evocable with S-ICD pocket manipulation. The fluoroscopy excluded S-ICD macroscopic damage. The device extraction revealed undamaged pulse generator and connector, but the lead was inappropriately tunneled under the sixth rib. Then the S-ICD malfunction was due to lead microscopic damage caused by the lead rubbing the rib surface.
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