Journal of anesthesia
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Journal of anesthesia · Jan 2005
Case ReportsPercutaneous radiofrequency lumbar facet rhizotomy guided by computed tomography fluoroscopy.
X-ray fluoroscopy-guided percutaneous radiofrequency facet rhizotomy is used to treat chronic low back pain. The traditional fluoroscopic approach to the medial branch of the posterior rami, however, is associated with a small incidence of complications. We describe a new method for radiofrequency lumbar facet rhizotomy in which computed tomography (CT) fluoroscopy is used to guide needle placement. ⋯ Pain scores of all patients were reduced after the procedure without any complications such as paralysis or neuritic pain. None of the patients complained of severe discomfort during the procedure. CT fluoroscopy-guided percutaneous lumbar facet rhizotomy appears to be safe, fast, and effective for patients with lumbar facet pain.
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Journal of anesthesia · Jan 2005
Effects of olprinone on hepatosplanchnic circulation and mitochondrial oxidation in a porcine model of endotoxemia.
This study was performed in order to assess the effects of olprinone, a phosphodiesterase III inhibitor, on hepatic oxygen delivery (DO2H), oxygen consumption (VO2H), and mitochondrial oxidation in the liver of a porcine endotoxemia model. ⋯ Our data for this porcine endotoxemia model suggest that olprinone may have beneficial therapeutic effects in restoring not only systemic and hepatic circulation but also mitochondrial oxidation in the liver.
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Journal of anesthesia · Jan 2005
Randomized Controlled Trial Clinical TrialPreadministration of low-dose ketamine reduces tourniquet pain in healthy volunteers.
We evaluated whether preadministration of low-dose ketamine could attenuate tourniquet pain and arterial pressure increase using high tourniquet pressure in ten healthy awake volunteers. Ketamine, 0.1 mg x kg(-1), or normal saline was given intravenously in a double-blind fashion before tourniquet inflation with a pressure of 400 mmHg at the thigh. ⋯ SBP (120 +/- 9 mmHg) significantly increased before tourniquet deflation (133 +/- 16 mmHg) in the saline trial, but not in the ketamine trial. The results show that preadministration of low-dose ketamine attenuates tourniquet pain and arterial pressure increase during high-pressure tourniquet application and prolongs tourniquet time in healthy volunteers.
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Journal of anesthesia · Jan 2005
Randomized Controlled Trial Clinical TrialPain management after lumbar spinal fusion surgery using continuous subcutaneous infusion of buprenorphine.
The continuous subcutaneous infusion (CSI) technique is a simple, inexpensive method for managing postoperative pain. We examined the analgesic effects of CSI of buprenorphine in patients undergoing lumbar spinal fusion surgery. ⋯ CSI of buprenorphine effectively reduces pain after lumbar spinal fusion surgery without apparent side effects. This technique is simple and useful for postoperative pain management.