Anesthesia and analgesia
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Anesthesia and analgesia · Apr 2007
Randomized Controlled TrialThe relative potencies for motor block after intrathecal ropivacaine, levobupivacaine, and bupivacaine.
In this study, we sought to determine the median effective dose (ED50) for motor block of intrathecal ropivacaine, levobupivacaine, and bupivacaine and to define their motor-blocking potency ratios. ⋯ There is a clinical profile of potency for motor block for the pipecolylxylidines when administered spinally: low, intermediate, and high for ropivacaine, levobupivacaine, and bupivacaine, respectively.
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Anesthesia and analgesia · Apr 2007
Randomized Controlled TrialThe effects of arm position on onset and duration of axillary brachial plexus block.
We assessed the effects of arm position after block performance on success rate, onset time, and duration of axillary block (AXB). ⋯ Maintaining the arm in abduction after performing AXB allows a shorter onset time and a prolongation of the sensory and motor blocks.
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Anesthesia and analgesia · Apr 2007
Randomized Controlled TrialThe effect of intravenous administration of dexamethasone on postoperative pain, nausea, and vomiting after intrathecal injection of meperidine.
Different drugs have been used to enhance postoperative neuraxial opioid analgesia and reduce adverse effects. ⋯ Administration of IV dexamethasone prior to intrathecal meperidine injection enhances analgesia and reduces PONV.
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Anesthesia and analgesia · Apr 2007
Randomized Controlled TrialSpinal anesthesia with lidocaine or preservative-free 2-chlorprocaine for outpatient knee arthroscopy: a prospective, randomized, double-blind comparison.
In this prospective, randomized, double-blind study we tested the hypothesis that 50 mg of 1% preservative-free 2-chloroprocaine would provide a faster resolution of spinal block than the same dose of 1% plain lidocaine. ⋯ Intrathecal injection of 50 mg of preservative-free 2-chloroprocaine 1% resulted in quicker recovery of sensory/motor function, and unassisted ambulation, and fewer incidences of transient neurologic symptoms than the same dose of 1% lidocaine.
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Anesthesia and analgesia · Apr 2007
Randomized Controlled TrialA comparison of laser-assisted drug delivery at two output energies for enhancing the delivery of topically applied LMX-4 cream prior to venipuncture.
Laser-assisted drug delivery (LAD) has the potential for facilitating topical anesthesia with reduced onset time. ⋯ LAD at an energy of 2.0 J/cm2 (570 mJ) is as effective, with similar adverse events, as an energy of 3.5 J/cm2 (1000 mJ) in facilitating topical anesthesia.