Document Detail


Acute evaluation of a preformed single-pass VDD/DDD pacing lead.
MedLine Citation:
PMID:  9870009     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The clinical utility of single lead, atrial synchronous, ventricular pacing (VDD), for patients with normal sinus function and heart block is well established. Atrial stimulation, unavailable in VDD systems presents a significant disadvantage. DDD pacing systems however, require the introduction and positioning of two separate leads. The acute human study discussed evaluated a modified version of a commercially available VDD lead with a preshaped lobe, capable of both sensing and pacing the right atrium. "P" waves and atrial stimulation thresholds were determined in five patients. The mean P-wave was 2.5 +/- 1 millivolts. Atrial stimulation in the unipolar configuration was 1.6 +/- 0.5 volts and 1.7 +/- 0.9 volts in the bipolar configuration. These acute stimulation thresholds and sensing amplitudes were comparable to conventional DDD pacing systems. Therefore, single-lead DDD pacing may be feasible and warrants further study.
Authors:
M S Hazday; D Mendelson; R R Brownlee
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing     Volume:  2     ISSN:  1383-875X     ISO Abbreviation:  J Interv Card Electrophysiol     Publication Date:  1998 Jun 
Date Detail:
Created Date:  1999-01-20     Completed Date:  1999-01-20     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9708966     Medline TA:  J Interv Card Electrophysiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  171-3     Citation Subset:  IM    
Affiliation:
Division of Cardiology, Orlando Regional Healthcare Systems Orlando, Florida, USA.
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MeSH Terms
Descriptor/Qualifier:
Cardiac Pacing, Artificial / methods
Electrocardiography
Electrodes, Implanted
Equipment Design
Evaluation Studies as Topic
Heart Atria
Heart Block / therapy
Heart Ventricles
Humans
Iridium
Pacemaker, Artificial*
Platinum
Surface Properties
Chemical
Reg. No./Substance:
7439-88-5/Iridium; 7440-06-4/Platinum

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


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