| Noninvasive Clinical Assessment of Systolic Torsional Motions by Two-Dimensional Speckle-Tracking Echocardiography in Dogs with Myxomatous Mitral Valve Disease. | |
| | |
MedLine Citation:
|
PMID: 23278918 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
BACKGROUND: Left ventricular torsional motion plays an important role for effective pump function. However, noninvasive clinical assessment of torsional deformations by two-dimensional speckle-tracking echocardiography (2D-STE) in dogs with myxomatous mitral valve disease (MMVD) has not been reported. HYPOTHESIS: Left ventricular torsion is determined by the native orientation of the helical myocardial fibers, such that it might provide better assessment of myocardial function than conventional methods. ANIMALS: Sixty-seven client-owned dogs with MMVD were classified into 3 classes based on the International Small Animal Cardiac Health Council classification and 16 weight- and age-matched healthy dogs. METHODS: Dogs were examined for myocardial deformations by 2D-STE and were evaluated for peak systolic rotation and rotation rate at each basal and apical view. Dogs also were evaluated for peak systolic torsion and torsion rate. RESULTS: Peak systolic torsion was higher in class II than in class I (P < .001) dogs. Peak systolic torsion was lower in class III than in class II (P = .001) dogs and controls (P = .003). CONCLUSIONS AND CLINICAL IMPORTANCE: Torsional deformations assessed by 2D-STE differed among clinical classes of MMVD. Myocardial torsional deformations by 2D-STE may provide more detailed assessment of contractile function in dogs with MMVD. |
| | |
Authors:
|
R Suzuki; H Matsumoto; T Teshima; H Koyama |
Related Documents
:
|
3753098 - The action of ad6 on experimental arrhythmias and on action potentials of cardiac fibers. 2888868 - Selective ganglionic blockade of vagal inputs to sinoatrial and/or atrioventricular reg... 8461228 - Acceleration of ventricular response to atrial flutter after intravenous adenosine. 8037098 - Left atrial myopathy in idiopathic dilated cardiomyopathy. 15350418 - Influence of growth history on sloughing and erosion from biofilms. 2296878 - Use of heart rate spectral analysis to study the effects of calcium channel blockers on... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-12-26 |
Journal Detail:
|
Title: Journal of veterinary internal medicine / American College of Veterinary Internal Medicine Volume: - ISSN: 1939-1676 ISO Abbreviation: J. Vet. Intern. Med. Publication Date: 2012 Dec |
Date Detail:
|
Created Date: 2013-1-2 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 8708660 Medline TA: J Vet Intern Med Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2012 by the American College of Veterinary Internal Medicine. |
Affiliation:
|
Division of Veterinary Internal Medicine, Department of Veterinary Science, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, Tokyo, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Evidence of a conserved functional role for DNA methylation in termites.
Next Document: Hippocampal neurogenesis protects against cocaine-primed relapse.