| Rate of change of heart size before congestive heart failure in dogs with mitral regurgitation. | |
MedLine Citation:
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PMID: 20406369 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: The objective of the study was to examine the changes in vertebral heart scale, and left atrial and ventricular dimensions before and at onset of congestive heart failure in cavalier King Charles spaniels with mitral regurgitation. METHODS: Records and radiographs from 24 cavalier King Charles spaniels with mitral regurgitation were used. Vertebral heart scale (24 dogs), and left atrial dimension and left ventricular end diastolic and end systolic diameters (18 dogs) and their rate of increase were measured at intervals over years to the onset of congestive heart failure. They were plotted against time to onset of congestive heart failure. RESULTS: Dimensions and rates of change of all parameters were highest at onset of congestive heart failure, the difference between observed and chance outcome being highly significant using a two-tailed chi-square test (P<0.001). CLINICAL SIGNIFICANCE: The left heart chambers increase in size rapidly only in the last year before the onset of congestive heart failure. Increasing left ventricular end systolic dimension is suggestive of myocardial failure before the onset of congestive heart failure. Rate of increase of heart dimensions may be a useful indicator of impending congestive heart failure. |
Authors:
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P Lord; K Hansson; C Kvart; J Häggström |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of small animal practice Volume: 51 ISSN: 1748-5827 ISO Abbreviation: J Small Anim Pract Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-04-21 Completed Date: 2010-07-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0165053 Medline TA: J Small Anim Pract Country: England |
Other Details:
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Languages: eng Pagination: 210-8 Citation Subset: IM |
Affiliation:
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Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala S750 07, Sweden. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Dog Diseases / physiopathology* Dogs Female Heart / anatomy & histology* Heart Failure / physiopathology, veterinary* Male Mitral Valve Insufficiency / physiopathology, veterinary* Pedigree Severity of Illness Index |
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