Direct measurement of intracranial pressure in adult horses

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25 Scopus citations


Objective. To develop a method for surgical placement of a commercial microsensor intracranial pressure (ICP) transducer and to characterize normal ICP and cerebral perfusion pressures (CPP) in conscious adult horses. Animals. 6 healthy castrated male adult horses (1 Holsteiner, 1 Quarter Horse, and 4 Thoroughbreds). Procedure. Anesthesia was induced and maintained by use of isoflurane as the sole agent. Catheters were inserted percutaneously into the jugular vein and carotid artery. A microsensor ICP transducer was inserted in the subarachnoid space by means of right parietal craniotomy. The burr hole was then sealed with bone wax, the surgical incision was sutured, and the transducer was secured in place. Measurements were collected 1 hour after horses were able to stand during recovery from anesthesia. Result. Mean ± SD values for ICP and CPP were 2 ± 4 and 102 ± 26 mm Hg, respectively. Conclusions and Clinical Relevance. This report describes a relatively facile technique for obtaining direct and accurate ICP measurements for adult horses. The ICP values obtained in this study are within reference ranges established for other species and provide a point of reference for the diagnosis of abnormal ICP in adult horses.

Original languageEnglish (US)
Pages (from-to)1252-1256
Number of pages5
JournalAmerican Journal of Veterinary Research
Issue number9
StatePublished - Sep 2002

ASJC Scopus subject areas

  • veterinary(all)


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