Intracranial pressure and cerebral perfusion pressure in clinically normal equine neonates.

G. D. Kortz, John E Madigan, B. W. Goetzman, M. Durando

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10 Scopus citations


Intracranial pressure (ICP) and cerebral perfusion pressure (CPP) were determined in 8 clinically normal neonatal foals. After the foals oriented themselves and nursed the mares, they were sedated as necessary, and local anesthesia was provided for making the skin incisions. Using a technique similar to that used in human beings, an indwelling subdural catheter was placed to measure ICP. Carotid artery catheterization was used to measure arterial blood pressure. Cerebral perfusion pressure was calculated as the difference between mean arterial blood pressure and ICP. Intracranial pressure and CPP readings were taken twice during each 24-hour period, starting at 6 hours of age and continuing through 72 hours of age. Mean (+/- SD) ICP were 5.83 +/- 1.82, 8.81 +/- 2.06, and 9.55 +/- 1.55 mm of Hg (range, 2 to 15 mm of Hg), and mean CPP were 80.19 +/- 10.34, 75.30 +/- 10.86, and 76.80 +/- 12.59 mm of Hg (range, 50 to 109 mm of Hg) for each of the first three 24-hour periods after birth, respectively. All 8 foals had physical and neurologic examinations, CSF analysis, and computerized axial tomography evaluations. The foals manifested normal behavior during the interval of measurements, and adverse effects of the procedure were not detected during the monitoring period. Establishment of normal values for ICP and CPP are important to clinicians who have the opportunity to apply this technique for monitoring and evaluating neonatal foals with signs of CNS dysfunction.

Original languageEnglish (US)
Pages (from-to)1351-1355
Number of pages5
JournalAmerican Journal of Veterinary Research
Issue number10
StatePublished - Oct 1995

ASJC Scopus subject areas

  • veterinary(all)


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