Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Letter Randomized Controlled Trial
[Less long term pain with an iliofascial than an epidural block after hip arthroplasty].
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Randomized Controlled Trial Comparative Study
Intranasal lidocaine plus naphazoline nitrate improves surgical conditions and perioperative analgesia in septorhinoplasty surgery.
Septorhinoplasty is a traumatic procedure that is associated with epistaxis and postoperative pain. The primary objective of this randomized double-blind controlled trial was to determine whether intranasal 5% lidocaine plus naphazoline decreases postoperative pain and lessens the use of rescue analgesics. ⋯ Intranasal lidocaine plus naphazoline is a simple and efficient technique for decreasing intra- and postoperative pain and for lessening rescue analgesic requirements in the postoperative period after septorhinoplasty. Toxic plasma concentrations of lidocaine were not reached.
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Controlled Clinical Trial
Ultrasound-guided block of the brachial plexus at the humeral canal.
Conduction block of the brachial plexus block at the humeral canal, as described by Dupre, has certain clinical indications. The aim of this preliminary study was to assess the feasibility of this technique under ultrasound guidance. ⋯ We describe an approach to, and the feasibility of ultrasound-guided block of the brachial plexus at the humeral canal. Further study will be required to establish the effectiveness and the safety of this technique.
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Opioids are widely used for anesthesia but paradoxically induce postoperative pain hypersensitivity via N-methyl-D: -aspartate (NMDA) receptor modulation. Sevoflurane effects on opioid-induced hyperalgesia have not been yet evaluated in vivo. Nevertheless, some experimental in vitro studies reported anti-NMDA receptor properties for sevoflurane. The aim of this study was to evaluate sevoflurane effects on fentanyl-induced hyperalgesia in opioid-naive rats and in rats with inflammatory pain. ⋯ Relatively low sevoflurane concentrations (1.0%) reverse fentanyl-induced hyperalgesia in rats without inflammatory pain. Nevertheless, the lack of effect of sevoflurane concentrations of 1.0% and 1.5% to oppose hyperalgesia following high-dose fentanyl and inflammatory pain suggests that sevoflurane anti-hyperalgesic properties are weak.