Journal of anesthesia
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Journal of anesthesia · Sep 1997
Airway troubles related to the double-lumen endobronchial tube in thoracic surgery.
Several case reports indicate critical respiratory complications in relation to the double-lumen endobronchial tube (DLT). A prospective survey for the airway problems in using the DLT is presented. ⋯ Most of the DLT obstructions were associated with withdrawal malposition. Great attention to DLT displacement and airway deformity is advised.
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Journal of anesthesia · Sep 1997
Yohimbine and flumazenil: effect on nitrous oxide-induced suppression of dorsal horn neurons in cats.
The purpose of this study was to determine the mechanisms of nitrous oxide (N2O) antinociception at the spinal level with yohimbine (an α2-adrenergic antagonist) and flumazenil (a specific benzodiazepine antagonist) using chemonociceptive stimuli in spinal dorsal horn neurons in the cat. ⋯ These data imply that N2O suppresses the nociceptive responses in part probably through its agonistic binding activity to the α2-adrenergic, γ-aminobutyric acid (GABA)-benzodiazepine, or both receptor systems in dorsal born neurons of the feline spinal cord.
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Journal of anesthesia · Sep 1997
Ventilatory effects of laparoscopic cholecystectomy under general anesthesia.
To investigate the ventilatory effect of laparoscopic cholecystectomy in patients under general anesthesia with epidural block. ⋯ These results suggest that (1) transperitoneal absorption of CO2 may be the main cause of hypercarbia, and the hypercarbia is not attributed to the increase in VD/VT; and (2) oxygenation is not impaired during pneumoperitoneum.
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Journal of anesthesia · Sep 1997
Differential effects of ketamine and MK-801 on A-fiber and C-fiber responses of spinal wide dynamic range neurons in the cat.
To clarify whether ketamine suppresses both A-fiber-and C-fiber-mediated pain and to compare the effects of ketamine with those of MK-801. ⋯ Intravenous ketamine may suppress both A-and C-fiber-mediated pain at a subanesthetic dose. This finding could be a scientific basis for the usefulness of ketamine during clinical procedures such as dressing changes or débridement of the burned patient.