Intraocular Pressure Changes During General Anesthesia
in Children, Comparing No Mask, Undermask and Laryn
geal Mask Airway
SUWIMON TANGWIWAT, M.D.*, PISAMORN KUMPHONG, M.D.*,
SUWANEE SURASARANEEWONG,M.D.*, LAOUNGSRI AUDCHANEEYASAKUL,M.D.**,
THAMANOON SURACHATKUMTHORNKUL, M.D.**, MOLEE NAKSARN, M.D.*,
PARICHIKA TONGKUMPAN, M.D.*, TANAPORN NAPACHOTI, B.SC.*
Affiliation : * Department of Anesthesiology,
** Department of Ophthalmology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
AbstractIn 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 ± 3.1 and 12.0 ± 3.3, p<0.05) but not significantly different
cilnically. We concluded that clinically, the lOP does not change in children given general anesthesia
with a correct size of face mask when compared with insertion of an LMA or no face mask.
Keywords : Intraocular Pressure, Children, Face Mask, Laryngeal Mask Airway
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