Access the full text.
Sign up today, get DeepDyve free for 14 days.
D. Trout, W. Hornof, R. Linford, T. O'Brien (1990)
Scintigraphic evaluation of digital circulation during the developmental and acute phases of equine laminitis.Equine veterinary journal, 22 6
J. Denoix, N. Crevier, B. Roger, J. Lebas (1993)
MAGNETIC RESONANCE IMAGING OF THE EQUINE FOOTVeterinary Radiology & Ultrasound, 34
Jane Brazy (1991)
Near-infrared spectroscopy.Clinics in perinatology, 18 3
Scott Ea, Sandler Ga (1978)
Electromagnetic measurements of metacarpal and digital blood flow in the pony.American Journal of Veterinary Research, 39
J. Moore, D. Allen, E. Clark (1989)
Pathophysiology of acute laminitis.The Veterinary clinics of North America. Equine practice, 5 1
D. Hood, D. Grosenbaugh, M. Slater (1994)
Vascular perfusion in horses with chronic laminitis.Equine veterinary journal, 26 3
N. Robinson (1990)
Digital blood flow, arteriovenous anastomoses and laminitis.Equine veterinary journal, 22 6
M. Thorniley, Y. Wickramasinghe, P. Rolfe (1988)
Near infra-red spectroscopy: a new technique for the non-invasive monitoring of tissue and blood oxygenation in vivoBiochemical Society Transactions, 16
J. Coffman, J. Johnson, M. Guffy, E. Finocchio (1970)
Hoff circulation in equine laminitis.Journal of the American Veterinary Medical Association, 156 1
Adair (1994)
Evaluation of Laser-Doppler flowmetry for measuring coronary band and laminar blood flow in clinically normal horsesAm. J. vet. Res., 55
C. Pollitt, G. Molyneux (1990)
A scanning electron microscopical study of the dermal microcirculation of the equine foot.Equine veterinary journal, 22 2
P. Mishra, D. Leach (1983)
Electron microscopic study of the veins of the dermal lamellae of the equine hoof wall.Equine veterinary journal, 15 1
H. Bucher, K. Siebenthal, G. Duc (1993)
Increased cerebral blood volume associated with pneumothorax in preterm infantThe Lancet, 341
Douglas Weiss, Raymond Geor, G. Johnston, A. Trent (1994)
Microvascular thrombosis associated with onset of acute laminitis in ponies.American journal of veterinary research, 55 5
Schummer Schummer (1951)
Blutgefasse and Zirkulationhaltnisse im Zehendorgan des PferdesGegenbaurs Morphol. Jahrb., 91
D. Serteyn, E. Mottart, C. Michaux, J. Micheels, C. Philippart, L. Lavergne, C. Guillon, M. Lamy (1986)
Laser Doppler flowmetry: Muscular microcirculation in anaesthestised horsesEquine Veterinary Journal, 18
Neil Hampson, C. Piantadosi (1988)
Near infrared monitoring of human skeletal muscle oxygenation during forearm ischemia.Journal of applied physiology, 64 6
F. Jöbsis-VanderVliet, E. Fox, K. Sugioka (1987)
Monitoring of Cerebral Oxygenation and Cytochrome aa3 Redox StateInternational Anesthesiology Clinics, 25
Kruger (1934)
Uber die Blutgefassversorgung der Zehe und besonders des Zehenendorgans des PferdesGegenbaurs Morphol. Jahb., 74
T. Turner (1991)
Thermography as an aid to the clinical lameness evaluation.The Veterinary clinics of North America. Equine practice, 7 2
Hood (1978)
Equine Laminitis 1. Radioisotopic analysis of the hemodynamics of the foot during the acute diseaseJ. equine Med Surg., 2
H. Adair, D. Goble, G. Shires, W. Sanders (1994)
Evaluation of laser Doppler flowmetry for measuring coronary band and laminar microcirculatory blood flow in clinically normal horses.American journal of veterinary research, 55 4
G. Molyneux, C. Haller, K. Mogg, C. Pollitt (1994)
The structure, innervation and location of arteriovenous anastomoses in the equine foot.Equine veterinary journal, 26 4
KW Clarke, Barbara Paton (1988)
Combined use of detomidine with opiates in the horse.Equine veterinary journal, 20 5
N. Robinson, J. Scott, J. Dabney, G. Jones (1976)
Digital vascular responses and permeability in equine alimentary laminitis.American journal of veterinary research, 37 10
Hunt (1991)
The pathophysiology of acute laminitisComp. cont. vet. Educ. Pract. Vet., 13
Summary The present study applies near infrared spectroscopy (NIRS) to the haemodynamics of the pedal circulation in normal and laminitic horses. NIRS is a noninvasive technique which uses changes in light absorption at 4 wavelengths to provide information on the changes in cytochrome aa3 (cyt aa3) reduction‐oxidation (redox) status, and changes in the tissue concentration of oxyhaemoglobin (O2Hb), deoxyhaemoglobin (HHb) and therefore total haemoglobin (tHb). Other studies have shown NIRS to be sensitive to changes in tissue oxygenation and perfusion in human cerebral and limb circulation. In this study, the NIRS sensor was applied to the dorsal surface of horses' hooves. Normal and laminitic animals (acute and chronic) were subjected to manoeuvres (cuff tourniquet; digital vessel occlusion at the palmar surface of the pastern; lifting of contralateral limb) predicted to change pedal haemodynamics. The procedures produced changes in pedal haemodynamics and oxygenation, which were similar to those observed in the ischaemic/reperfused human forearm. Laminitic differed from normal horses: return of HHb to baseline was slower and the change in cyt aa3 more rapid than normal in cases of chronic laminitis, taken to indicate reduced O2 stores as a result of compromised basal perfusion. In acute laminitis, baseline values did not fluctuate following any of the manoeuvres, suggesting haemostasis in the diseased hoof. NIRS is a useful noninvasive method to assess pedal vascular function in normal and laminitic horses.
Equine Veterinary Journal – Wiley
Published: Nov 1, 1995
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.