| Acute evaluation of a preformed single-pass VDD/DDD pacing lead. | |
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MedLine Citation:
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PMID: 9870009 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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M S Hazday; D Mendelson; R R Brownlee |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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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:
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Created Date: 1999-01-20 Completed Date: 1999-01-20 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9708966 Medline TA: J Interv Card Electrophysiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 171-3 Citation Subset: IM |
Affiliation:
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Division of Cardiology, Orlando Regional Healthcare Systems Orlando, Florida, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cardiac Pacing, Artificial
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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:
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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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