[Continuous monitoring of arterial blood oxygen saturation with a pulse oximeter during spinal anesthesia].
The arterial oxygen saturation was continuously monitored in 50 patients under spinal anesthesia. Of the 50 patients, low oxygen saturation below 95% and/or its decrease of more than 5% was observed in 19 patients (38%). The remaining 31 patients (62%) showed a normal oxygen saturation. Pentazocine 0.5 mg.kg-1 i.v. correlated significantly with arterial oxygen desaturation (P = 0.0001). It is possible that laparotomy is associated with the desaturation (P = 0.0582). No correlation between desaturation and the other factors (level of analgesia, position during operation, and hydroxyzine premedication) was found.
Hirabayashi
Y
Y
Department of Anesthesiology, Jichi Medical School, Tochigi.
Saitoh
K
K
Fukuda
H
H
Saegusa
K
K
Inoue
S
S
Saitoh
J
J
Mitsuhata
H
H
Shimizu
R
R
D000293:Adolescent; D000328:Adult; D000775:Anesthesia, Spinal; D001785:Blood Gas Monitoring, Transcutaneous; D006801:Humans; D000860:Hypoxia / Q000209:etiology*; D007431:Intraoperative Complications / Q000209:etiology*; D007813:Laparotomy / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D010092:Oximetry; D010423:Pentazocine / Q000009:adverse effects
D010423:Pentazocine