| Intraocular Pressure during Mechanical Ventilation with Positive End-Expiratory Pressure under General Anesthesia. |
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Mi Ae Cheong, Jong Hoon Yeom, Woo Jong Shin, Hee Soo Kim, Yong Chul Kim, Dong Ho Lee, Kyoung Hun Kim, Jung Kook Suh |
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Department of Anesthesiology, School of Medicine, Hanyang University, Seoul, Korea. |
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| 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. |
| Key Words:
Anesthetic technique: general; Eye: intraocular pressure; Ventilation: positive end-expiratory pressure |
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