Long-Term Technical Performance of the Osypka QT-5, javax.xml.bind.JAXBElement@731a9fda, Ventricular Pacemaker Lead

Georg Semmler, Fabian Barbieri, Karin Thudt, Paul Vock, Deddo Mörtl, Harald Mayr, Christian Georg Wollmann, Agne Adukauskaite, Bernhard Erich Pfeifer, Bernhard Erich Pfeifer, Thomas Senoner, Wolfgang Dichtl

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

Abstract

Background: Lead-associated complications and technical issues in patients with cardiac implantable electronic devices are common but underreported in the literature. Methods: All patients undergoing implantation of the Osypka QT-5® ventricular lead at the University Clinic St. Pölten between 1 January 2006 and 31 December 2012 were retrospectively analyzed (n = 211). Clinical data including pacemaker follow-up examinations and the need for lead revisions were assessed. Kaplan–Meier analysis to estimate the rate of lead dysfunction during long-term follow-up was conducted. Results: Patients were followed for a median of 5.2 years (interquartile range (IQR) 2.0–8.7). R-wave sensing properties at implantation, compared to last follow-up, remained basically unchanged: 9.9 mV (IQR 6.8–13.4) and 9.6 mV (IQR 5.6–12.0), respectively). Ventricular pacing threshold significantly increased between implantation (0.5 V at 0.4 ms; IQR 0.5–0.8) and the first follow-up visit (1.0 V at 0.4 ms; IQR 0.8–1.3; p < 0.001) and this increase persisted throughout to the last check-up (0.9 V at 0.4 ms; IQR 0.8–1.2). Impedance significantly declined from 1142 Ω (IQR 955–1285) at implantation to 814 Ω (IQR 701–949; p < 0.001) at the first check-up, followed by a further decrease to 450 Ω (IQR 289–652; p < 0.001) at the last check-up. Overall, the Osypka QT-5® ventricular lead was replaced in 36 patients (17.1%). Conclusions: This report shows an unexpected high rate of technical issues of the Osypka QT-5® ventricular lead during long-term follow-up.
OriginalspracheEnglisch
Seiten (von - bis)1-9
Seitenumfang9
FachzeitschriftJournal of Clinical Medicine
Issue639
DOIs
PublikationsstatusVeröffentlicht - 2021

Research Field

  • Exploration of Digital Health

Schlagwörter

  • pacemaker malfunction; impedance decline; reoperation; lead replacement

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