Document Detail

Long-term results of high vs. normal impedance ventricular leads on actual (Real-Life) pacemaker generator longevity.
MedLine Citation:
PMID:  19056744     Owner:  NLM     Status:  MEDLINE    
AIM: The long-term effects of high impedance vs. standard impedance pacing leads on actual generator longevity were studied. METHODS AND RESULTS: In 40 patients (21 females, age 73 +/- 13 years) with standard dual-chamber pacemaker indication, bipolar standard impedance ventricular leads and high-impedance leads were implanted in a randomized fashion. Identical pacemaker generators and atrial pacing leads were implanted in all patients. Patients were observed during a mean follow-up of 89.8 +/- 8.8 months before pacemaker replacement. Initially, the patients who received the high-impedance leads had a lower current drain as compared with standard pacing impedance leads, and the estimated pacemaker longevity was significantly prolonged, too. But this pattern disappeared after 6 years of follow-up, and finally the actual pacemaker generators' replacement time was 86.7 +/- 6.8 months in standard impedance lead group vs. 91.2 +/- 10.3 months in high-impedance lead group (P = 0.17). CONCLUSION: Implantation of high pacing impedance leads for ventricular stimulation does not result in a benefit with respect to pacemaker longevity as compared with standard impedance leads.
Kakhaber Etsadashvili; Florian Hintringer; Markus Stühlinger; Wolfgang Dichtl; Karin Spuller; Herwig Antretter; Herbert Hangler; Otmar Pachinger; Franz Xaver Roithinger; Thomas Berger
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2008-12-04
Journal Detail:
Title:  Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology     Volume:  11     ISSN:  1532-2092     ISO Abbreviation:  Europace     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-26     Completed Date:  2009-05-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883649     Medline TA:  Europace     Country:  England    
Other Details:
Languages:  eng     Pagination:  200-5     Citation Subset:  IM    
Clinical Department of Cardiology, Medical University Innsbruck Anichstrasse, Innsbruck, Austria.
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MeSH Terms
Aged, 80 and over
Electric Impedance
Electrodes, Implanted
Electrophysiologic Techniques, Cardiac / instrumentation*
Equipment Failure
Follow-Up Studies
Middle Aged
Pacemaker, Artificial*
Prospective Studies
Time Factors
Ventricular Dysfunction / physiopathology,  therapy*
Comment In:
Europace. 2009 Feb;11(2):142-3   [PMID:  19109362 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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