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Titolo:
Doppler ultrasonography and single-fiber laser Doppler flowmetry for measurement of hind limb blood flow in anesthetized horses
Autore:
Raisis, AL; Young, LE; Taylor, PM; Walsh, KP; Lekeux, P;
Indirizzi:
Anim Hlth Trust, Ctr Equine Studies, Newmarket CB8 7UU, Suffolk, England Anim Hlth Trust Newmarket Suffolk England CB8 7UU 8 7UU, Suffolk, England Univ Cambridge, Dept Clin Vet Med, Cambridge CB3 0ES, England Univ Cambridge Cambridge England CB3 0ES Med, Cambridge CB3 0ES, England
Titolo Testata:
AMERICAN JOURNAL OF VETERINARY RESEARCH
fascicolo: 3, volume: 61, anno: 2000,
pagine: 286 - 290
SICI:
0002-9645(200003)61:3<286:DUASLD>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
MUSCULAR MICROCIRCULATION; MUSCLE; PERFUSION; HALOTHANE; ISOFLURANE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Raisis, AL Anim Hlth Trust, Ctr Equine Studies, Lanwades Pk, Newmarket CB87UU, Suffolk, England Anim Hlth Trust Lanwades Pk Newmarket Suffolk England CB8 7UU d
Citazione:
A.L. Raisis et al., "Doppler ultrasonography and single-fiber laser Doppler flowmetry for measurement of hind limb blood flow in anesthetized horses", AM J VET RE, 61(3), 2000, pp. 286-290

Abstract

Objective-To use Doppler ultrasonography and single-fiber laser Doppler flowmetry (LDF) to evaluate blood flow in the dependent and nondependent hindlimbs of anesthetized horses and to evaluate changes in femoral arterial blood flow and microvascular skeletal muscle perfusion in response to administration of phenylephrine hydrochloride or dobutamine hydrochloride. Animals-6 healthy adult horses. Procedure-Horses were anesthetized and positioned in left lateral recumbency. Doppler ultrasonography was used to measure velocity and volumetric flow in the femoral vessels. Single-fiber LDF was used to measure relative microvascular perfusion at a single site in the semimembranosus muscles. Phenylephrine or dobutamine was then administered to decrease or increase femoral arterial blood flow, and changes in blood flow and microvascular perfusion were recorded. Results-Administration of phenylephrine resulted in significant decreases in femoral arterial and venous blood flows and cardiac output and significant increases in mean aortic blood pressure, systemic vascular resistance, and PCV. Administration of dobutamine resulted in significant increases in femoral arterial blood flow, mean aortic blood pressure, and PCV. Significant changes in microvascular perfusion were not detected. Conclusion and Clinical Relevance-Results suggest that Doppler ultrasonography and single-fiber LDF can be used to study blood flows in the hind limbs of anesthetized horses. However, further studies are required to determine why changes in femoral arterial blood flows were not associated with changes in microvascular perfusion.

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Documento generato il 12/07/20 alle ore 01:21:36