Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Nov 2004
Randomized Controlled Trial Clinical TrialInterscalene brachial plexus anesthesia with ropivacaine 5 mg/mL and bupivacaine 5 mg/mL: effects on electrocardiogram.
Cardiotoxicity is the most severe complication of long-acting local anesthetics. The aim of this trial is to compare early signs of depression of cardiac conduction linked with the administration of either ropivacaine or bupivacaine for interscalene block. ⋯ Electrocardiographic recordings were similar in both groups, except for a significant prolongation of the PQ interval in the bupivacaine group at plasma levels below threshold for cardiotoxicity.
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Reg Anesth Pain Med · Sep 2004
Randomized Controlled Trial Comparative Study Clinical TrialRadiofrequency lumbar facet denervation: a comparative study of the reproducibility of lesion size after 2 current radiofrequency techniques.
Radiofrequency facet denervation procedures are widely used for the treatment of chronic low-back pain. Currently, both temperature-controlled and voltage-controlled techniques are used. In this combined in vivo and in vitro study, the electrophysiologic consequences and the effects on lesion size of these techniques were determined. ⋯ There is no consistent relation between voltage and the temperature obtained during radiofrequency lumbar facet denervation. Temperature-controlled radiofrequency lesioning is preferred to create reproducible lesion sizes.
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Reg Anesth Pain Med · Sep 2004
Randomized Controlled Trial Clinical TrialBier block with methylprednisolone and lidocaine in CRPS type I: a randomized, double-blinded, placebo-controlled study.
To investigate the effect of intravenous regional anesthesia (Bier block) with methylprednisolone and lidocaine in complex regional pain syndrome (CRPS) type I in a randomized, double-blinded, and placebo-controlled study. ⋯ Bier block with methylprednisolone and lidocaine in CRPS type I does not provide long-term benefit in CRPS, and its short-term benefit is not superior to placebo.
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Reg Anesth Pain Med · Sep 2004
Randomized Controlled Trial Clinical TrialHearing loss does not occur in young patients undergoing spinal anesthesia.
Although uncommon, hearing loss after spinal anesthesia has been described. Vestibulocochlear dysfunction after spinal anesthesia in which 22-gauge and 25-gauge Quincke needles were used was investigated to determine if needle size affected hearing. ⋯ We were unable to induce hearing loss in young patients undergoing spinal anesthesia by injecting the anesthetic with a 22-gauge or a 25-gauge Quincke needle.
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Reg Anesth Pain Med · Sep 2004
Randomized Controlled Trial Clinical TrialPeripheral opioid analgesia in laparoscopic cholecystectomy.
Recent research has revealed that opioids can act directly on the peripheral terminals of afferent nerves to mediate antinociception. The aim of this study was to assess the influence of peripheral morphine administration on the nociception process in the postoperative period. ⋯ Results of the study confirm the possibility of modifying the nociception process in the postoperative period through peripheral opioid administration.