Articles: nerve-block.
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Anesthesia and analgesia · May 2016
Randomized Controlled Trial Multicenter Study Comparative StudyContinuous Popliteal Sciatic Blocks: Does Varying Perineural Catheter Location Relative to the Sciatic Bifurcation Influence Block Effects? A Dual-Center, Randomized, Subject-Masked, Controlled Clinical Trial.
Multiple studies have demonstrated that, for single-injection popliteal sciatic nerve blocks, block characteristics are dependent upon local anesthetic injection relative to the sciatic nerve bifurcation. In contrast, this relation remains unexamined for continuous popliteal sciatic nerve blocks. We, therefore, tested the hypothesis that postoperative analgesia is improved with the perineural catheter tip at the level of the bifurcation compared with 5 cm proximal to the bifurcation. ⋯ For continuous popliteal sciatic nerve blocks, a catheter inserted 5 cm proximal to the sciatic nerve bifurcation provides superior postoperative analgesia in subjects having moderately painful foot or ankle surgery compared with catheters located at the bifurcation. This is in marked contrast with single-injection popliteal sciatic nerve blocks for which benefits are afforded to local anesthetic injection distal, rather than proximal, to the bifurcation.
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Randomized Controlled Trial Multicenter Study
Ultrasound-guided nerve blocks for intracapsular and extracapsular hip fractures.
To compare pain relief between patients with intracapsular and extracapsular hip fractures who received an ultrasound-guided femoral nerve block (USFNB). ⋯ Ultrasound-guided femoral nerve block was equally effective in reducing pain for patients with both intracapsular and extracapsular hip fractures.
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Multicenter Study
Fascia iliaca compartment block for hip fractures: experience of integrating a new protocol across two hospital sites.
Fascia iliaca compartment block (FICB) administered through the loss of resistance technique effectively reduces pain and opiate requirement in elderly patients with hip fractures. FICB is a simple technique and is easily taught. This paper plots the implementation of FICB in two hospitals. ⋯ Organizational learning of this simple procedure can be achieved through a multidisciplinary approach, and committed departmental education and feedback. The impact on length of stay and mortality were striking; however, there may be other confounding factors. Only two cases of true anaesthetic toxicity occurred in 1586 patients. The authors conclude that FICB is a safe procedure and a useful adjunct for preoperative pain control in patients with hip fractures.
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Anesthesia and analgesia · Jan 2016
Randomized Controlled Trial Multicenter Study Comparative StudyUltrasound-Guided Single-Injection Infraclavicular Block Versus Ultrasound-Guided Double-Injection Axillary Block: A Noninferiority Randomized Controlled Trial.
Single-injection ultrasound-guided infraclavicular block is a simple, reliable, and effective technique. A simplified double-injection ultrasound-guided axillary block technique with a high success rate recently has been described. It has the advantage of being performed in a superficial and compressible location, with a potentially improved safety profile. However, its effectiveness in comparison with single-injection infraclavicular block has not been established. We hypothesized that the double-injection ultrasound-guided axillary block would show rates of complete sensory block at 30 minutes noninferior to the single-injection ultrasound-guided infraclavicular block. ⋯ We failed to demonstrate that the rate of complete sensory block of the double-injection axillary block is noninferior to the single-injection infraclavicular block. However, the rate of complete sensory block at 30 minutes is statistically significantly lower with the axillary block. The ultrasound-guided single-injection infraclavicular block thus seems to be the preferred technique over the axillary for upper arm anesthesia.
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Randomized Controlled Trial Multicenter Study
Neuraxial block and postoperative epidural analgesia: effects on outcomes in the POISE-2 trial.
We assessed associations between intraoperative neuraxial block and postoperative epidural analgesia, and a composite primary outcome of death or non-fatal myocardial infarction, at 30 days post-randomization in POISE-2 Trial subjects. ⋯ Neuraxial block and postoperative epidural analgesia were not associated with adverse cardiovascular outcomes among POISE-2 subjects.