Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Sep 2009
Randomized Controlled Trial Comparative StudyA prospective, randomized comparison between single- and double-injection, ultrasound-guided supraclavicular brachial plexus block.
This prospective, randomized, observer-blinded study compared single- and double-injection, ultrasound-guided supraclavicular brachial plexus block for upper extremity surgery. ⋯ The double-injection, ultrasound-guided supraclavicular block provides no significant advantages compared with its single-injection counterpart.
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Reg Anesth Pain Med · Sep 2009
ReviewUltrasound-guided interventional procedures in pain medicine: a review of anatomy, sonoanatomy, and procedures: part I: nonaxial structures.
Application of ultrasound in pain medicine is a rapidly growing medical field in interventional pain management. Ultrasound provides direct visualization of various soft tissues and real-time needle advancement and avoids exposing both the health care provider and the patient to the risks of radiation. The machine itself is more affordable than a fluoroscope, computed tomography scan, or magnetic resonance imaging machine. In the present review, we discuss the challenges and limitations of ultrasound-guided procedures for pain management, anatomy, and sonoanatomy of selected pain management procedures and the literature on those selected procedures.
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Reg Anesth Pain Med · Sep 2009
Randomized Controlled TrialUltrasound-guided low-dose interscalene brachial plexus block reduces the incidence of hemidiaphragmatic paresis.
Interscalene brachial plexus block is associated with 100% incidence of hemidiaphragmatic paresis as a result of phrenic nerve block. We examined whether an ultrasound (US)-guided interscalene brachial plexus block performed at the level of root C7 versus a nerve stimulation interscalene brachial plexus block, both using 10 mL of ropivacaine 0.75%, resulted in a lower incidence of hemidiaphragmatic paresis. ⋯ Ultrasound-guided interscalene brachial plexus block performed at the level of root C7 using 10 mL of ropivacaine 0.75% reduces the incidence of hemidiaphragmatic paresis.
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Reg Anesth Pain Med · Sep 2009
Anatomic basis to the ultrasound-guided approach for saphenous nerve blockade.
Successful blockade of the saphenous nerve using surface landmarks can be challenging. We evaluated the anatomic basis of performing a saphenous nerve block with ultrasound (US) using its relationship to the saphenous branch of descending genicular artery, sartorius muscle, and the adductor hiatus as defined by cadaveric measurements. ⋯ The US-guided approach for saphenous nerve blockade using its close anatomic relationship to the SBDGA is a feasible alternative to previously described surface landmark-based or US-guided paravenous approaches.
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Reg Anesth Pain Med · Sep 2009
Randomized Controlled Trial Comparative StudyPercutaneous upper thoracic radiofrequency sympathectomy in Raynaud phenomenon: a comparison of T2/T3 procedure versus T2 lesion with phenol application.
Percutaneous radiofrequency (RF) thoracic sympathectomy is an alternative method to surgical procedures for the treatment of acral ischemia in Raynaud phenomenon. The procedure is indicated if conservative therapy fails to provide sufficient relief. The aim of this study was to compare classic T2 and T3 RF thermolesioning with a less invasive procedure at the level of T2 only. ⋯ Thoracic RF upper sympathectomy is an effective method in the treatment of resistant forms of Raynaud phenomenon. A single-shot procedure at the level of T2 may be preferable because of the shorter procedure duration of this technique.