| Coronary myogenic responses to abrupt changes in aortic blood pressure in anaesthetized dogs. | |
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MedLine Citation:
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PMID: 2245024 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A transient increase in coronary transmural pressure was produced in anaesthetized dogs by occlusion of the descending thoracic aorta. Aortic blood pressure (ABP), left ventricular pressure and coronary flow were measured; coronary vascular resistance (CVR) was calculated. Results were similar in innervated and denervated hearts. Occlusion for 10 and 20 s resulted in no change in CVR for 15 s, followed by a metabolic dilatation attributable to enhanced oxygen demand; after release the fall in ABP resulted in an immediate increase in CVR, caused by vascular elastic recoil, followed by hyperaemia. |
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Authors:
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M Dambrosio; D Gattullo; R J Linden; G Losano; P Pagliaro; P Vono |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Experimental physiology Volume: 75 ISSN: 0958-0670 ISO Abbreviation: Exp. Physiol. Publication Date: 1990 Sep |
Date Detail:
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Created Date: 1991-01-09 Completed Date: 1991-01-09 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 9002940 Medline TA: Exp Physiol Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 725-8 Citation Subset: IM |
Affiliation:
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Istituto di Anestesiologia e Rianimazione, Università di Bari, Italy. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Anesthesia Animals Aorta / physiology* Blood Pressure* Coronary Circulation Coronary Vessels / physiology* Dogs Muscle, Smooth, Vascular / physiology* Vascular Resistance |
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