Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Jul 1998
Randomized Controlled Trial Comparative Study Clinical TrialA clinical comparison between needle-through-needle and double-segment techniques for combined spinal and epidural anesthesia.
The goal of the present investigation was to compare the double-segment and the needle-through-needle techniques for combined spinal and epidural anesthesia (CSE) in a prospective, randomized, blinded study. ⋯ The needle-through-needle technique for CSE requires less time, has no greater failure rate, and results in greater patient satisfaction than the double-segment technique. The use of a spinal needle with an adjustable locking mechanism and protruding up to 15 mm beyond the Tuohy needle improved successful spinal block in the needle-through-needle technique compared with previous reports.
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Reg Anesth Pain Med · Jul 1998
Randomized Controlled Trial Clinical TrialDifferential effect on vasodilatation and pain after intradermal capsaicin in humans during decay of intravenous regional anesthesia with mepivacaine.
When given intracutaneously, capsaicin can cause burning pain by central propagation in thin afferents, as well as neurogenic vasodilatation, reflecting antidromic conduction in the same fibers. We wanted to test the hypothesis that an intravenous regional block (IVRA) inhibits these two phenomena to a similar degree. ⋯ Mepivacaine, given as an IVRA, had no effect on the post-IVRA sensory function of thin afferents but differentially decreased the spread of the capsaicin-induced flare.