Regional anesthesia and pain medicine
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Reg Anesth Pain Med · May 2013
Randomized Controlled TrialFascia lliaca block for analgesia after hip arthroplasty: a randomized double-blind, placebo-controlled trial.
Fascia iliaca block (FIB) is often used to treat pain after total hip arthroplasty (THA), despite a lack of randomized trials to evaluate its efficacy for this indication. The objective of this study was to assess the analgesic benefit of FIB after THA. Our primary hypothesis was administration of FIB decreases the intensity of postoperative pain (numeric rating scale [NRS-11] score) compared with sham block (SB) in patients after THA. ⋯ The evidence in these data suggests that the difference in average pain intensity after FIB versus SB was not significant (95% confidence interval, -2.2-1.4 NRS units).
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Reg Anesth Pain Med · May 2013
Randomized Controlled TrialA randomized comparison between 3 combinations of volume and concentration of lidocaine for ultrasound-guided infraclavicular block.
This prospective, randomized, observer-blinded study compared 3 combinations of volume and concentration using the same total dose of lidocaine for ultrasound-guided infraclavicular block. ⋯ Using an identical dose (525 mg) of adrenalized lidocaine for ultrasound-guided infraclavicular block, we found no differences in onset time among 3 commonly used concentrations (1%, 1.5%, and 2%). Further studies are required to determine the optimal combination of volume and concentration of lidocaine for other ultrasound-guided approaches to the brachial plexus.