[Changes in rectal temperature during tympanoplasty under general anesthesia].
We measured rectal temperature of 35 patients who underwent tympanoplasty under various types of general anesthesia. They were allocated at random to three groups according to the types of general anesthesia; 10 patients of enflurane-N2O (enflurane group); 10 patients of neuroleptic anesthesia with droperidol, pentazocine-N2O (NLA group); 15 patients of total intravenous anesthesia with droperidol, fentanyl and ketamine (DFK group). After the induction of anesthesia, their rectal temperature was continuously monitored with an electric thermometer of NEC San-ei throughout the surgical procedure. Increase in rectal temperature was observed in all three groups, and increase in DFK group was significant compared with other two groups. It is possible that the significant increase in rectal temperature in DFK group is supposedly due to normally maintained hypothalamic thermoregulatory function as well as direct surgical stimulation to central nervous system.
Ohkawa
H
H
Department of Anesthesiology, University of Hirosaki School of Medicine.
Iwakawa
T
T
Ohtomo
N
N
Kitayama
M
M
Miyahara
A
A
Matsuki
A
A
D000328:Adult; D000768:Anesthesia, General / Q000379:methods; D000771:Anesthesia, Intravenous; D001831:Body Temperature / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D009458:Neuroleptanalgesia; D012007:Rectum / Q000502:physiology*; D014433:Tympanoplasty