Articles: nerve-block.
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Comparative Study
Nerve stimulators used for peripheral nerve blocks vary in their electrical characteristics.
Nerve stimulation with a low-intensity electrical current has become a vital part of the performance of peripheral nerve blockade. The purpose of this study was to compare the accuracy and characteristics of peripheral nerve stimulators used in clinical practice in the United States. ⋯ Nerve stimulators used for regional anesthesia vary greatly in accuracy of current output and in manufacturer-selected electrical characteristics (e.g., current duration, stimulating frequency, maximum voltage output).
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Anesthesia and analgesia · Apr 2003
Case ReportsAirway difficulty after a brachial plexus subclavian perivascular block.
We report a case of upper airway obstruction after subclavian perivascular block in a patient with a preexisting unrecognized paralyzed vocal cord on the opposite side. We discuss the incidence of vocal cord paralysis after subclavian perivascular block and the risk of airway compromise if contralateral vocal cord paralysis is known or suspected.
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Comparative Study
Effect of dexamethasone on motor brachial plexus block with bupivacaine and with bupivacaine-loaded microspheres in a sheep model.
It has been suggested that dexamethasone potentiates the sensory block produced by bupivacaine when both drugs are loaded in microspheres. The aim of the study was to evaluate the effect of dexamethasone on the brachial plexus block obtained with plain bupivacaine and bupivacaine-loaded microspheres. ⋯ Despite the delayed onset of motor block, the incorporation of dexamethasone in bupivacaine-loaded microspheres dramatically increases the duration of action (700 +/- 485-5160 +/- 2136 min), which could be clinically relevant when such a drug-delivery system will be available.
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Anesthesia and analgesia · Apr 2003
Case ReportsSeizure after levobupivacaine for interscalene brachial plexus block.
This case report describes a patient who demonstrated generalized seizure activity after an injection of 30 mL of levobupivacaine 0.5% for interscalene brachial plexus block. No evidence of cardiovascular toxicity was noted.
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Rev Esp Anestesiol Reanim · Apr 2003
Case Reports[Continuous popliteal block with ropivacaine via a stimulant catheter for postoperative analgesia after foot surgery].
Three patients underwent foot surgery to correct hallux valgus and other toe deformities. Postoperative analgesia was provided by a sciatic nerve block in the popliteal fossa through a 21-gauge 64 mm needle and a 50 cm catheter connected to a nerve stimulator. ⋯ Hallux valgus surgery causes intense postoperative pain that can be prevented by a peripheral nerve block. A continuous popliteal block through a catheter equipped with a nerve stimulator is an easy technique that provides very good pain management after this type of surgery, with few undesirable side effects.