Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Sep 2004
Randomized Controlled Trial Clinical TrialBier block with methylprednisolone and lidocaine in CRPS type I: a randomized, double-blinded, placebo-controlled study.
To investigate the effect of intravenous regional anesthesia (Bier block) with methylprednisolone and lidocaine in complex regional pain syndrome (CRPS) type I in a randomized, double-blinded, and placebo-controlled study. ⋯ Bier block with methylprednisolone and lidocaine in CRPS type I does not provide long-term benefit in CRPS, and its short-term benefit is not superior to placebo.
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Reg Anesth Pain Med · Sep 2004
Ultrasound visibility of needles used for regional nerve block: an in vitro study.
Ultrasound visibility of regional block needles is a critical component for safety and success of regional anesthetic procedures. The aim of the study was to formally assess factors that influence ultrasound visibility of needles used in regional anesthesia. ⋯ The results of our in-vitro study suggest a number of factors enhancing ultrasound visibility of regional block needles. The use of needles in the largest possible size inserted with a medium-size guide wire provides the best ultrasound visibility. Analysis of the approach angle favors needle insertion parallel to the transducer. The consideration of these factors may improve safety and success of ultrasound-guided regional blocks.