Masui. The Japanese journal of anesthesiology
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We succeeded in maintaining anesthesia for artificial anus formation in rabbits using a new anesthetic technique of endothoracic anesthesia. The drug injection through a catheter, which was inserted into the endothoracic fascia at the level of the 11th thoracic vertebra, caused an unilateral anesthesia from the chest down to the lower limb. Artificial anus formation was possible by this endothoracic anesthesia with a help of medetomidine and nitrous oxide.
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Case Reports
[Pulmonary edema after cesarean section in a parturient with long term use of ritodrine].
A 31-year-old multigravida with a gestation of 31 weeks was admitted in premature labor with placenta previa. The premature labor had been inhibited for two and half months with a tocolytic agent (ritodrine). However, at 32-week gestation an infection was found, the labor broke through the therapy and cesarean section was carried out under spinal anesthesia. ⋯ However, with overdosage, maternal cardiac and pulmonary complications may occur. In this case, it is possible to have been caused by the long term use of ritodrine. Additionally, the excessive fluid administration, hypoprotenemia, decreased colloid osmotic pressure and infection also might have been the contributing factors for the disorder.
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Case Reports
[Severe bradycardia and hypotension during epidural anesthesia in a patient undergoing hemorrhoidectomy].
Severe bradycardia and hypotension developed suddenly in two patients undergoing hemorrhoidectomy under lumbar epidural anesthesia in the jackknife position, about 5 to 10 min after epidural administration of buprenorphine. Severe vago-vagal reflex was supposed to have been induced with buprenorphine in a situation where venous return was decreased by epidural anesthesia and the jackknife position.
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Randomized Controlled Trial Comparative Study Clinical Trial
[The dosage of sedative was reduced by patient-controlled sedation during epidural anesthesia].
The dosage of sedatives required for sedation was studied in patients who underwent total abdominal histerectomy under epidural anesthesia using patient-controlled sedation (PCS) and in those with anesthesiologist-controlled sedation (ACS). Patients in experimental groups received 1.0 or 1.5 mg bolus dose of midazolam by their request until desirable sedation was obtained using a computer-controlled device. ⋯ The level of sedation showed wider variation in PCS groups than in ACS groups. The results suggest that PCS is a technique which allows reduction of sedatives in patients who undergo operation under local anesthesia.
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Comparative Study Clinical Trial Controlled Clinical Trial
[A radiological analysis of the position of lumbar epidural catheters: a comparison between median and paramedian approach].
The position of lumbar epidural catheters was confirmed by radiography in 71 patients. Catheters were advanced by 5 cm cephalad in the lumbar epidural space by paramedian approach (Group P: n = 28) or median one (Group M: n = 43) and contrast media was injected through the catheters. ⋯ The incidence of the abnormal position of the catheters was higher in group M than in group P significantly. To advance an epidural catheter longer into the lumbar epidural space, paramedian approach may be superior to median one.