Document Detail

Electrophysiological and clinical comparison of two temporary pacing leads following cardiac surgery.
MedLine Citation:
PMID:  10461299     Owner:  NLM     Status:  MEDLINE    
Temporary pacing leads are invaluable in diagnosis and treatment of arrhythmia after cardiac surgery. The ideal lead possesses reliable pacing and sensing capabilities throughout the postoperative period. Ease of handling and a low complication rate are essential. This study compares a new lead (Medtronic model #6492) to a temporary pacemaker lead established in clinical use (Medtronic model #6500). One lead of each type was placed in the right atrium and ventricle in 33 patients undergoing elective coronary revascularization. Pacing function was measured on the first and fourth postoperative days. Lead complications were documented. On day 1, there was no statistical difference between lead types in terms of pacing (voltage threshold, current threshold), impedance, or sensing (P wave amplitude, R wave amplitude). On day 4, both leads showed an increase in pacing threshold and a decrease in sensing ability. The only statistical difference between lead types was in atrial sensing on day 4, as measured by the P wave amplitudes (1.95 +/- 0.18 V for model 6492 vs 1.40 +/- 0.14 V for model 6500, P < 0.05). Two leads of each model failed to pace in the ventricular position and one lead in each model in the atrial position. There were no complications attributable to either pacemaker lead. We found that both lead types were reliable and functioned well. The Medtronic Model #6492 lead demonstrated better long-term sensing, although in this study the difference was not clinically significant.
A O Halldorsson; W T Vigneswaran; F J Podbielski; D M Evans
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  22     ISSN:  0147-8389     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  1999 Aug 
Date Detail:
Created Date:  1999-10-05     Completed Date:  1999-10-05     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1221-5     Citation Subset:  IM    
Division of Cardiothoracic Surgery, University of Illinois at Chicago, Illinois, USA.
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MeSH Terms
Arrhythmias, Cardiac / diagnosis,  etiology,  therapy*
Cardiac Pacing, Artificial / methods*
Coronary Disease / surgery
Electrophysiology / methods*
Follow-Up Studies
Heart Rate
Myocardial Revascularization / adverse effects*
Pacemaker, Artificial*
Postoperative Care / methods
Treatment Outcome

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

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