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Korean J Anesthesiol. 1998 May;34(5):998-1001. Korean. Original Article.
Cheong MA , Yeom JH , Shin WJ , Kim HS , Kim YC , Lee DH , Kim KH , Suh JK .
Department of Anesthesiology, School of Medicine, Hanyang University, Seoul, Korea.
Abstract

BACKGROUND: The purpose of the present study was to determine the effect of positive end-expiratory pressure on intraocular pressure under general anesthesia. METHODS: Contact tonometer HA-1 (Kowa, Japan) was used to measure the intraocular pressures of 22 subjects at zero end-expiratory pressure and positive end-expiratory pressure of 15 cmH2O under general anesthesia. The data were statistically analyzed by paired t-test. RESULTS: There is no statistically significant difference between intraocular pressure of zero end-expiratory pressure and positive end-expiratory pressure of 15 cmH2O in a population with normal basal ocular tonometry. CONCLUSIONS: Mechanical ventilation with positive end-expiratory pressure of 15 cmH2O under general anesthesia dose not present a clinically important significant risk for intraocular pressure increase in a population with normal basal ocular tonometry.

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