Positive end-expiratory pressure during colic surgery in horses: 74 cases (1986-1988)

D. V. Wilson From the Large Animal Teaching Hospital, School of Veterinary Medicine, University of Pennsylvania, New Bolton Center, Kennett Square, PA 19348.

Search for other papers by D. V. Wilson in
Current site
Google Scholar
PubMed Close
 BVSc, MS
and
A. M. McFeely From the Large Animal Teaching Hospital, School of Veterinary Medicine, University of Pennsylvania, New Bolton Center, Kennett Square, PA 19348.

Search for other papers by A. M. McFeely in
Current site
Google Scholar
PubMed Close
Free access

Summary

Positive end-expiratory pressure (peep) was applied in 74 anesthetized, ventilated horses during colic surgery, to attempt to increase arterial oxygen tensions. In 28 horses with an initial PaO2 < 70 mm of Hg, peep increased PaO2 values to a mean of 173 ± 24 mm of Hg. Arterial oxygen content increased from 14.1 ± 0.05 ml/dl to 17.2 ± 0.05 ml/dl. In the remaining 46 horses, peep increased PaO2 from a mean value of 101 ± 6 mm of Hg to 194 ± 15 mm of Hg, and arterial oxygen content increased from 14.9 ± 0.09 ml/dl to 16.9 ± 0.07 ml/dl.

Cardiovascular depression and decrease in arterial blood pressure was observed after the application of peep in 54 horses. These 54 horses required use of pressors (n = 8), inotropes (n = 32), or both (n = 14) to keep the mean arterial blood pressure > 60 mm of Hg. Combined with pharmacologic support of blood pressure, peep could be a useful clinical treatment of arterial hypoxemia in horses.

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 562 160 6
PDF Downloads 81 48 1
Cover Journal of the American Veterinary Medical Association
Journal of the American Veterinary Medical Association
Issue:
01 Oct 1991
Advertisement