Attempts at direct measurement o arterial f blood pressure in the horse have met with variable success. The simple auscultatory and palpatory methods as used in man have proved of limited value. There are comparatively few superficial arteries in the horse that can be satisfactorily occluded by a counter-pressure device. In those that can it is not possible to detect pulse return consistently by either simple palpation or auscultation. The studies that have attempted these methods have been reviewed by Geddes (1970) and Ellis (1973). The use of more sophistic instrumentation to detect pulse return in the artery following occlusion has allowed a more constant determination o blood pressure. Certain of these methods have f proved technically satisfactory for indirect blood pressure measurement and validation studies have shown a close correlation with blood pressure determined by direct measurement (Ellis 1973). However the majority of these methods have suffered from one or more of the following limitations - systolic blood pressure only can be determined, the method requires expensive and non-portable bulky instrumentation which precludes its use in the field; the method is subject to movement artifact so that its use is limited to either anaesthetised horses or very
Australian Veterinary Journal – Wiley
Published: Apr 1, 1977
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