[Intraoral moisture during operation under general anesthesia].
BACKGROUND
Intra-operative intraoral moisture was examined using a moisture checker, on the hypothesis that as an operation is prolonged, the intraoral moisture decreases; consequently, intraoral drying level should increase.


METHODS
This hypothesis was tested on 27 adult patients undergoing a regular operation. The subjects having fasted since 0:00 o'clock of the operation day entered the operating room, where their intraoral moisture was measured using an intraoral moisture checker (Life Co. Ltd., Tokyo) (the unit is % index). Then, propofol administration was started with simulated blood concentration of 4 microg x ml(-1). Anesthesia was induced with vecuronium 1 mg x kg(-1) and fentanyl 1.5 microg x mg(-1). Every hour from anesthesia induction to the end of operation, intraoral moisture was checked. The propofol simulated blood concentration during operation was set to remain at 2-3.5 microg x ml(-1), with fentanyl administered. Statistical analysis was done by two factor factorial ANOVA. P < 0.05 was considered significant.


CONCLUSIONS
The intraoral moisture during operation under general anesthesia showed no chronologically significant difference.
Inui
Tatsuo
T
Department of Anesthesia, Saiseikai Kurihashi Hospital, Saitama.
Morioka
Nobutada
N
Ozaki
Makoto
M
D000368:Aged; D000768:Anesthesia, General; D001834:Body Water / Q000378:metabolism*; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000175:diagnosis; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D009055:Mouth / Q000378:metabolism*; D014987:Xerostomia / Q000175:diagnosis