Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Jan 2001
Randomized Controlled Trial Clinical TrialIntrathecal low-dose bupivacaine versus lidocaine for in vitro fertilization procedures.
Recent controversy with the use of intrathecal lidocaine has prompted the search for suitable ambulatory surgery alternatives. The purpose of our study was to evaluate the clinical utility of intrathecal low-dose bupivacaine for outpatient transvaginal oocyte retrieval. ⋯ Although prolongation to voiding and discharge was observed, intrathecal hyperbaric bupivacaine 3.75 mg with fentanyl 25 microg is a viable anesthetic for oocyte retrieval.
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Reg Anesth Pain Med · Jan 2001
Randomized Controlled Trial Comparative Study Clinical TrialSelective ulnar nerve localization is not essential for axillary brachial plexus block using a multiple nerve stimulation technique.
The multiple-injection technique for axillary block, in which the 4 distal nerves of the plexus are located by a nerve stimulator and separately injected, has been shown to produce a rapid onset and a high success rate. However, this technique may be more difficult and time consuming than other axillary block methods. A simplified multiple-nerve stimulation technique, in which the ulnar nerve was not located, was compared in the present double-blind study to the 4-injection approach. ⋯ A triple-injection method of axillary block in which the ulnar nerve was not purposely located provides a spread and a latency of sensory block equal to that obtained with a 4-injection technique. A shorter performance time is an advantage of this approach.
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Reg Anesth Pain Med · Jan 2001
Randomized Controlled Trial Clinical TrialSpinal anesthesia with hypobaric bupivacaine for knee arthroscopies: effect of posture on motor block.
The clinical impact of patient positioning on motor block during unilateral spinal anesthesia was the focus of our study. It was assumed that a 45 degrees rotation toward the prone position would minimize blocking the ventral motor roots compared with using the conventional lateral decubitus position. ⋯ The position of the patient affects the spread of the spinal anesthesia when clearly hypobaric agents are used. However, this small modification in positioning of the patient did not lead to a clinically meaningful difference in the spread of the motor block.
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Reg Anesth Pain Med · Jan 2001
Randomized Controlled Trial Clinical TrialUltrasound imaging facilitates localization of the epidural space during combined spinal and epidural anesthesia.