| Effects of sympathetic and parasympathetic stimulation on the induction of atrial flutter in dogs with aseptic pericarditis. | |
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MedLine Citation:
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PMID: 1811089 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To study the effects of sympathetic stimulation (SS) and vagal stimulation (VS) on the induction of atrial flutter (AF) and its cycle length, aseptic pericarditis was produced surgically in 17 adult mongrel dogs. Programmed atrial stimulation was used to induce AF and to determine the effective refractory periods (ERP) and maximum conduction delay (maxCD) of the atrium. These tests were performed before and during stimulation of the right cervical vagus nerve and the right stellate ganglion. Results showed: (1) AF could be induced in animals with short ERP and large maxCD before SS; (2) ERP was significantly shortened, maxCD was significantly increased by VS; (3) During SS, ERP was slightly shortened, but there were no changes in maxCD and the induction rate of AF; (4) The cycle length of AF was shortened by SS, however, the cycle length of AF was shortened more notably by VS than by SS. From these findings, a shortening of the ERP and an increase in maxCD appear to be related to an increased AF induction rate by VS. |
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Authors:
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K Yano; T Hirata; M Hirata; O Hano; Y Matsumoto; T Mitsuoka; K Abe; K Hashiba |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Japanese heart journal Volume: 32 ISSN: 0021-4868 ISO Abbreviation: Jpn Heart J Publication Date: 1991 Nov |
Date Detail:
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Created Date: 1992-06-04 Completed Date: 1992-06-04 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401175 Medline TA: Jpn Heart J Country: JAPAN |
Other Details:
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Languages: eng Pagination: 811-25 Citation Subset: IM |
Affiliation:
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Third Department of Internal Medicine, Nagasaki University School of Medicine, Japan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Atrial Flutter / etiology, physiopathology* Cardiac Pacing, Artificial Dogs Electrocardiography Pericarditis / complications* Refractory Period, Electrophysiological Stellate Ganglion / physiopathology* Vagus Nerve / physiopathology* |
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