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  • Title: Microdislodgment: a likely mechanism of pacing failure with high impedence small area electrodes.
    Author: Kikuchi K, Abe H, Nagatomo T, Nakashima Y.
    Journal: Pacing Clin Electrophysiol; 2003 Jul; 26(7 Pt 1):1541-3. PubMed ID: 12914635.
    Abstract:
    High impedance tined steroid-eluting leads, Medtronic CapSure Z family, incorporating a small surface (1.2 mm2) electrode made of porous platinum material are designed to reduce battery current drain. However, in some prior studies, an increased incidence of microdislodgment with this lead was reported thought to be due to the reduced electrode surface area. This article reports the experience that ventricular pacing failure due to microdislodgment occurred after CapSure Z lead implantation and the previous literature is reviewed. (
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