Document Detail


Assessment of mechanical ventricular synchrony in Doberman Pinscher with dilated cardiomyopathy.
MedLine Citation:
PMID:  21843980     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: Loss of temporal synchrony of myocardial contraction has been shown to reduce systolic function and be responsible for disease progression in people. The objective of this study is the assessment of inter- and intra ventricular synchrony in healthy Doberman Pinschers and those with dilated cardiomyopathy (DCM) by use of conventional Doppler and tissue velocity imaging. ANIMALS: A total of 60 scans from 35 client-owned Doberman Pinschers presented for cardiac evaluation were analysed. METHODS: Retrospective analysis of data. Using the European Society of Veterinary Cardiology DCM taskforce scoring system, Doberman Pinschers were classified into 4 groups: Control (Group 1; n=12), depressed systolic function other than DCM (Group 2; n=9), preclinical DCM (Group 3; n=8) and symptomatic DCM (Group 4; n=6). The time intervals between the beginning of the QRS complex and the peak velocity of pulmonic flow (Q-P) and the peak aortic flow (Q-Ao) were used to assess global synchrony between both ventricles. The time intervals between the beginning of the QRS complex and the peak myocardial systolic velocity (Q-peak S) and the onset of myocardial systolic velocity (Q-start S) were measured at the base of the right and left ventricular free wall (RVFW and LVFW) and interventricular septum (IVS), and used to determine segmental longitudinal inter- and intra ventricular synchrony. RESULTS: No significant loss of global or segmental longitudinal inter- or intra ventricular synchrony was identified between the groups. CONCLUSION: Impairment of longitudinal fibre synchrony does not appear to be significantly associated with clinical status of DCM in Doberman Pinschers, although it was identified in certain individuals.
Authors:
Jordi López-Alvarez; Sonja Fonfara; Brigite Pedro; Hannah Stephenson; Peter J Cripps; Joanna Dukes-McEwan
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-13
Journal Detail:
Title:  Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology     Volume:  -     ISSN:  1875-0834     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101163270     Medline TA:  J Vet Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Affiliation:
Small Animal Teaching Hospital, University of Liverpool, School of Veterinary Science, Leahurst, Chester High Road, Neston, CH64 7TE, UK.
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