Articles: nerve-block.
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J. Neurosci. Methods · Sep 2006
Reversible vagal blockade in conscious rats using a targeted delivery device.
Reversible methods of nerve blockade greatly aid neurophysiological and behavioral studies. We have developed an implantable device for the local delivery of anesthetics to the area surrounding the vagal nerve in rats. The device consists of a thick silicone tube for insulating the nerves from the surrounding tissue, and a thin silicone tube for the infusion of anesthetics into the insulating tube. ⋯ Electrical stimulation of the right vagus nerve in conscious rats increased arterial pressure while decreasing heart rate. The local blockade of afferent fibers abolished the arterial pressure response but preserved the bradycardic response to vagal nerve stimulation. The targeted delivery device was useful for reversible vagal blockade in conscious rats.
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Reg Anesth Pain Med · Sep 2006
Randomized Controlled Trial Comparative StudyIs there any need for expanding the perineural space before catheter placement in continuous femoral nerve blocks?
There is debate regarding the benefit of perineural space expansion before catheter placement in continuous femoral nerve block. This question is addressed in this prospective, comparative, and randomized study. ⋯ Expansion of the perineural space with D5W is useful for catheter placement in continuous femoral nerve block.
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Anasthesiol Intensivmed Notfallmed Schmerzther · Sep 2006
Review[Spinal regional anesthetic approaches in children: caudal block and spinal anesthesia].
Caudal anesthesia is a safe, simple and very effective method to provide excellent perioperative analgesia. It is used routineously in pediatric anesthesia and can be applied to nearly all children with surgery below the umbilicus. In contrast, spinal anesthesia is a very special technique for former preterm infants below the 50th postconceptive week who are prone to develop postoperative apnea. It has been suggested that some of the problems associated with general anesthesia in these patients may be avoided by the use of spinal anesthesia.
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Reg Anesth Pain Med · Sep 2006
Ultrasound-guided lumbar medial-branch block: a clinical study with fluoroscopy control.
For diagnostic lumbar medial-branch blocks, fluoroscopic guidance is considered mandatory, but this technique comes with radiation exposure. The clinical feasibility of the ultrasound-guided lumbar medial-branch block has been demonstrated. We evaluated the success rate and validity of this new method by use of fluoroscopy controls in patients previously diagnosed with lumbar facet joint-mediated pain. ⋯ Ultrasound-guided lumbar medial-branch blocks can be performed with a high success rate. However, to be completely independent from fluoroscopy controls, this technique requires further studies regarding the detection of intravascular spread.