J Med Assoc Thai 2002; 85 (9):975

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Intraocular Pressure Changes During General Anesthesia in Children, Comparing No Mask, Undermask and Laryngeal Mask Airway
Tangwiwat S Mail, Kumphong P , Surasaraneewong S , Audchaneeyasakul L , Surachatkumthomkul T , Tongkumpan P , Napachoti T

In a before and after study of 35 children's eyes, we compared the intraocular pressure
(lOP) during general anesthesia consisting of 6-8 per cent sevoflurane in 100 per centoxygen at
induction. lOP measurement, blood pressure, oxygen saturation, and heart rate were recorded in
patients with an applied face mask while the patient became unconscious and proceeded to surgery.
These measurements were compared with those using no face-mask and after insertion of a laryn-
geal mask airway (LMA). The lOP with an applied face-mask was significantly statistically different
from that after insertion of a LMA (12.8
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3.1 and 12.0
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3.3, p

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