Decrease in Canine Endocardial and Epicardial Electrogram Voltages with Exercise: Implications for Pacemaker Sensing.
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| Title: | Decrease in Canine Endocardial and Epicardial Electrogram Voltages with Exercise: Implications for Pacemaker Sensing. |
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| Authors: | Bricker, J. Timothy1, Ward, Kent A.1, Zinner, Alex1,2, Gillette, Paul C.1,2 |
| Source: | Pacing & Clinical Electrophysiology. Apr1988, Vol. 11 Issue 4, p460-464. 5p. |
| Subjects: | Cardiac pacemakers, Implanted cardiovascular instruments, Electrocardiography, Mutts (Dogs), Cardiac pacing, Cardiology |
| Abstract: | Individuals with permanently implanted pacemakers who have normal sensing and pacing at rest may demonstrate abnormalities, particularly of atrial sensing, with exercise. Exercise is known to cause changes in the surface electrocardiographic voltages. The purpose of this study was to evaluate changes in endocardial and epicardial voltages during exercise in canines with permanently implanted pacing leads similar to those permanently implanted in humans with pacemakers. Six adult mongrel dogs were equipped with transvenous atrial and ventricular endocardial bipolar screw-in leads from a jugular venosection, and with atrial and ventricular bipolar stab-on leads from a left thoracotomy. Exercise was performed at one week following implantation and at weekly intervals for a total of 4 weeks. The animals were studied at rest and at a single workload of 3 miles per hour at a 30% elevation. Unfiltered electrograms were recorded with a VR-12 Electronics-for-Medicine photographic recorder. The mean decreases of electrograms with exercise from resting voltage were: 15% for atrial endocardial unipolar leads; 11% for atrial endocardial bipolar leads; 4% for atrial epicardial unipolar leads; 15% for atrial epicardial bipolar leads; 8% for ventricular endocardial unipolar leads; 18% for ventricular endocardial bipolar leads; 0.1% for ventricular epicardial unipolar leads and 5% for ventricular epicardial bipolar leads. [ABSTRACT FROM AUTHOR] |
| Copyright of Pacing & Clinical Electrophysiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 17479236 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Decrease in Canine Endocardial and Epicardial Electrogram Voltages with Exercise: Implications for Pacemaker Sensing. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bricker%2C+J%2E+Timothy%22">Bricker, J. Timothy</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ward%2C+Kent+A%2E%22">Ward, Kent A.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zinner%2C+Alex%22">Zinner, Alex</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gillette%2C+Paul+C%2E%22">Gillette, Paul C.</searchLink><relatesTo>1,2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Pacing+%26+Clinical+Electrophysiology%22">Pacing & Clinical Electrophysiology</searchLink>. Apr1988, Vol. 11 Issue 4, p460-464. 5p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Cardiac+pacemakers%22">Cardiac pacemakers</searchLink><br /><searchLink fieldCode="DE" term="%22Implanted+cardiovascular+instruments%22">Implanted cardiovascular instruments</searchLink><br /><searchLink fieldCode="DE" term="%22Electrocardiography%22">Electrocardiography</searchLink><br /><searchLink fieldCode="DE" term="%22Mutts+%28Dogs%29%22">Mutts (Dogs)</searchLink><br /><searchLink fieldCode="DE" term="%22Cardiac+pacing%22">Cardiac pacing</searchLink><br /><searchLink fieldCode="DE" term="%22Cardiology%22">Cardiology</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Individuals with permanently implanted pacemakers who have normal sensing and pacing at rest may demonstrate abnormalities, particularly of atrial sensing, with exercise. Exercise is known to cause changes in the surface electrocardiographic voltages. The purpose of this study was to evaluate changes in endocardial and epicardial voltages during exercise in canines with permanently implanted pacing leads similar to those permanently implanted in humans with pacemakers. Six adult mongrel dogs were equipped with transvenous atrial and ventricular endocardial bipolar screw-in leads from a jugular venosection, and with atrial and ventricular bipolar stab-on leads from a left thoracotomy. Exercise was performed at one week following implantation and at weekly intervals for a total of 4 weeks. The animals were studied at rest and at a single workload of 3 miles per hour at a 30% elevation. Unfiltered electrograms were recorded with a VR-12 Electronics-for-Medicine photographic recorder. The mean decreases of electrograms with exercise from resting voltage were: 15% for atrial endocardial unipolar leads; 11% for atrial endocardial bipolar leads; 4% for atrial epicardial unipolar leads; 15% for atrial epicardial bipolar leads; 8% for ventricular endocardial unipolar leads; 18% for ventricular endocardial bipolar leads; 0.1% for ventricular epicardial unipolar leads and 5% for ventricular epicardial bipolar leads. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Pacing & Clinical Electrophysiology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/j.1540-8159.1988.tb06007.x Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 5 StartPage: 460 Subjects: – SubjectFull: Cardiac pacemakers Type: general – SubjectFull: Implanted cardiovascular instruments Type: general – SubjectFull: Electrocardiography Type: general – SubjectFull: Mutts (Dogs) Type: general – SubjectFull: Cardiac pacing Type: general – SubjectFull: Cardiology Type: general Titles: – TitleFull: Decrease in Canine Endocardial and Epicardial Electrogram Voltages with Exercise: Implications for Pacemaker Sensing. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bricker, J. Timothy – PersonEntity: Name: NameFull: Ward, Kent A. – PersonEntity: Name: NameFull: Zinner, Alex – PersonEntity: Name: NameFull: Gillette, Paul C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr1988 Type: published Y: 1988 Identifiers: – Type: issn-print Value: 01478389 Numbering: – Type: volume Value: 11 – Type: issue Value: 4 Titles: – TitleFull: Pacing & Clinical Electrophysiology Type: main |
| ResultId | 1 |
