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Titolo:
Quantification of left ventricular diastolic wall motion by Doppler tissueimaging in healthy cats and cats with cardiomyopathy
Autore:
Gavaghan, BJ; Kittleson, MD; Fisher, KJ; Kass, PH; Gavaghan, MA;
Indirizzi:
Univ Calif Davis, Sch Vet Med, Dept Med & Epidemiol, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 Med & Epidemiol, Davis, CA 95616 USA Univ Calif Davis, Sch Vet Med, Dept Populat Hlth & Reprod, Davis, CA 95616USA Univ Calif Davis Davis CA USA 95616 lat Hlth & Reprod, Davis, CA 95616USA
Titolo Testata:
AMERICAN JOURNAL OF VETERINARY RESEARCH
fascicolo: 12, volume: 60, anno: 1999,
pagine: 1478 - 1486
SICI:
0002-9645(199912)60:12<1478:QOLVDW>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
MYOCARDIAL VELOCITY-GRADIENT; HYPERTROPHIC CARDIOMYOPATHY; NONINVASIVE ASSESSMENT; RESTORING FORCES; PEAK VELOCITY; IN-VITRO; RELAXATION; ECHOCARDIOGRAPHY; DYNAMICS; DESCENT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Gavaghan, BJ 79 Laidlaw St, Dayboro, Qld 4521, Australia 79 Laidlaw St Dayboro Qld Australia 4521 Qld 4521, Australia
Citazione:
B.J. Gavaghan et al., "Quantification of left ventricular diastolic wall motion by Doppler tissueimaging in healthy cats and cats with cardiomyopathy", AM J VET RE, 60(12), 1999, pp. 1478-1486

Abstract

Objective-To assess Doppler tissue imaging (DTI) for evaluating left ventricular diastolic wall motion in healthy cats and cats with cardiomyopathy. Animals-20 healthy cats, 9 cats with hypertrophic cardiomyopathy (HCM), and 9 cats with unclassified cardiomyopathy (UCM). Procedure-A pulsed wave DTI sample gate was positioned at a subendocardialregion of the left ventricular free wall in the short axis view and at thelateral mitral annulus in the apical 4-chamber view. Indices of diastolic wall motion were measured, including peak diastolic velocity (PDV), mean rate of acceleration and deceleration of the maximal diastolic waveform (MDWaccel and MDWdecel, respectively), and isovolumetric relaxation time (IVRT). Results-The PDV of cats with HCM and 6 of 9 cats with UCM was significantly decreased, compared with that of healthy cats. In the 3 cats with UCM that had a PDV that was not different from healthy cats, MDWaccel and MDWdecelwere greater, and IVRT was shorter than those of healthy cats. The IVRT incats with HCM was longer than that of other cats. Conclusions and Clinical Relevance-Indices of diastolic function in cats with HCM, and in many cats with UCM, differed from those of healthy cats andwere similar to those reported in humans with HCM and restrictive cardiomyopathy, respectively. However, the hemodynamic abnormality was not the samefor all cats with UCM; some cats with an enlarged left atrium and a normalleft ventricle (ie, UCM) had abnormal left ventricular wall motion consistent with restrictive cardiomyopathy while others did not.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 06:39:01