Recovery of dynamic balance after general anesthesia with sevoflurane in short-duration oral surgery.
OBJECTIVE
Recovery of dynamic balance, involving adjustment of the center of gravity, is essential for safe discharge on foot after ambulatory anesthesia. The purpose of this study was to assess the recovery of dynamic balance after general anesthesia with sevoflurane, using two computerized dynamic posturographies.


METHODS
Nine hospitalized patients undergoing oral surgery of less than 2 h duration under general anesthesia (air-oxygensevoflurane) were studied. A dynamic balance test, assessing the ability of postural control against unpredictable perturbation stimuli (Stability System; Biodex Medical), a walking analysis test using sheets with foot pressure sensors (Walk Way-MG1000; Anima), and two simple psychomotor function tests were performed before anesthesia (baseline), and 150 and 210 min after the emergence from anesthesia.


RESULTS
Only the double-stance phase in the walking analysis test showed a significant difference between baseline and results at 150 min. None of the other variables showed any differences among results at baseline and at 150 and 210 min.


CONCLUSIONS
The recovery times for dynamic balance and psychomotor function seem to be within 150 min after emergence from general anesthesia with sevoflurane in patients undergoing oral surgery of less than 2-h duration.
Fujisawa
Toshiaki
T
Department of Dental Anesthesiology, Graduate School of Dental Medicine, Hokkaido University, Kita-ku, Sapporo, 060-8586, Japan.
Miyamoto
Eriko
E
Takuma
Shigeru
S
Shibuya
Makiko
M
Kurozumi
Akihiro
A
Kimura
Yukifumi
Y
Kamekura
Nobuhito
N
Fukushima
Kazuaki
K
D000328:Adult; D000762:Anesthesia Recovery Period; D000768:Anesthesia, General; D018685:Anesthetics, Inhalation; D005260:Female; D006801:Humans; D008297:Male; D008738:Methyl Ethers; D009483:Neuropsychological Tests; D019647:Oral Surgical Procedures; D011184:Postoperative Period; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology; D011597:Psychomotor Performance / Q000187:drug effects; D000077149:Sevoflurane; D016138:Walking / Q000502:physiology
D018685:Anesthetics, Inhalation; D008738:Methyl Ethers; D000077149:Sevoflurane