Masui. The Japanese journal of anesthesiology
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Comparative Study
[Basic study on the mechanism of postanesthetic recovery acceleration caused by infusion of bicarbonated Ringer's solution].
Effect of bicarbonated Ringer's solution (BRS) on the liver function of rats with metabolic acidosis was compared with that of lactated Ringer's solution (LRS) and Ringer's solutions (RS). Furthermore, the effect of acidosis on the plasma protein binding ratio of propofol was examined. ⋯ These results suggest that metabolic acidosis induced the delay of awakening from anesthesia, suggesting that BRS accelerates recovery from anesthesia through amelioration of acidosis.
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Case Reports
[Complications of internal jugular vein cannulation under ultrasound guidance: report of three].
Internal jugular cannulation with ultrasound guidance has been advocated to decrease its complications. However, there can be serious complications by in-experienced physicians in even ultrasound-guided internal jugular vein cannulation. We report three cases of complications associated with ultrasound-guided internal jugular vein cannulation: puncture of the common carotid artery in two patients and pneumothorax in one.
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Co-administration of ketamine and remifentanil may offer preemptive analgesia and prevention of opioid-induced hyperalgesia, resulting in reduction of postoperative pain. ⋯ Results in this study suggest that anesthetic management using ketamine and remifentanil may be useful for postoperative pain management, probably by preemptive analgesic effects of both agents and preventive effects of ketamine against opioid-induced hyperalgesia.
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Randomized Controlled Trial
[Prospective study on anesthesia for lumbar spine surgery--the effectiveness of the perioperative epidural anesthesia with buprenorphine].
We prospectively evaluated the efficacy of perioperative epidural buprenorphine for lumbar spinal surgery under general anesthesia. Twenty-eight patients were allocated into two groups; in one group (buprenorphine group), patients underwent the surgery under general anesthesia with perioperative epidural buprenorphine 0.2 mg, in the other group (control group), patients underwent the surgery under general anesthesia only. The epidural injection was within 2 levels of the cephalad segment of the operating site. ⋯ In buprenorphine group, requirement of analgesics was less during and after surgery compared with the control group. Neurological evaluation immediately after surgery revealed no neurological side effects in both groups. We conclude that general anesthesia with perioperative epidural buprenorphine for lumbar spinal surgery is safe and useful.