Masui. The Japanese journal of anesthesiology
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Postoperative analgesia with epidurally injected buprenorphine and its side effects were investigated in 100 patients who had received lower abdominal surgery. All patients received initially 8 ml of bupivacaine and 0.1 mg of buprenorphine. ⋯ No significant difference in the incidence of side-effect was found among groups C, D, E. We conclude that a dose of a approximately 15 micrograms.h-1 might be optimal for postoperative pain relief after lower abdominal surgery.
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A 26-year old woman presented with acute hepato-renal dysfunction, coagulation abnormalities and diabetes insipidus associated with hypernatremia in the latter term of pregnancy (39 weeks). Such transient diabetes insipidus during pregnancy as in this case has been reported to be resistant to AVP, but to respond to DDAVP. Because of fetal compromise, an urgent cesarean section was performed. ⋯ After delivery of twin babies, her symptoms recovered gradually. In conclusion, diabetes insipidus during pregnancy as in this case is transient and disappear after delivery. However, multiple organ dysfunction may become worse and cause fetal death, unless surgical procedure with appropriate anesthetic management is performed.
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Case Reports
[Neuromuscular effects of vecuronium in patients receiving long-term administration of dantrolene].
We report two patients who received anesthesia using vecuronium (VCB) subsequent to long-term treatment with orally administered dantrolene. The present data suggest that these doses used of dantrolene do not prolong the duration of neuromuscular blockade induced by VCB. An 8 year old boy was given general anesthesia after medication with 20 mg.day-1 of dantrolene orally for two years. ⋯ The neuromuscular blocking effect of VCB was monitored by the same method as described above. Again, there was no apparent prolongation of neuromuscular blocking action of VCB. Evidently, VCB may be used in the clinic under standard conditions of neuromuscular monitoring in patients under previous long-term treatment with dantrolene.
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Neurological outcome and pathological changes of the brain were studied in 5 female mongrel dogs, which were subjected to normothermic ventricular fibrillation (Vf) cardiac arrest of 15 min and resuscitated by using cardiopulmonary bypass through the femoral artery and veins (F-F bypass). Spontaneous circulation was restored by one or two defibrillating countershocks in all 5 dogs 5.2 +/- 1.1 (mean +/- SD) min after initiation of the F-F bypass. The F-F partial bypass was continued for 164 +/- 30 min under mild hypothermia. ⋯ Soon after extubation, the animals barked, moved the forelegs and could drink water. Neurological deficit scores (normal: 0, brain death: 500) improved to become below 100 except in 1 dog. However, macroscopic examination of the brain in 2 dogs with prominent recovery disclosed atrophy of the central gyrus and microscopic examination revealed typical ischemic injuries of the vulnerable neurons at the cerebellum, hippocampus and cerebral cortex in the frontal lobe.
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Comparative Study
[Effects of nicardipine on hemodynamics and skin blood flow--comparison between N2O-sevoflurane and N2O-isoflurane anesthesia].
Dividing the surgical patients into GOS (N2O-oxygen-sevoflurane anesthesia) group and GOI (N2O-oxygen-isoflurane anesthesia) group, we studied the effects of nicardipine on hemodynamics and skin blood flow under each anesthetic method. Control measurements were taken when the hemodynamic parameters were stable during surgery and the incremental doses of nicardipine (0.5 mg) were administered up to a total of 2.0 mg. The changes in hemodynamic parameters and skin blood flow were measured at the nicardipine dosage of 0.5 mg (S1), 1.0 mg (S2), 1.5 mg (S3), and 2.0 mg (S4). ⋯ Blood pressure, on the other hand, decreased at S1 and S2, but showed little change at S3 and S4 in both groups. Skin blood flow tended to increase in the GOS group, but in the GOI group little change in skin blood flow was noted at S1-S3. Skin blood flow tended to decrease at S4 in the GOI group.