Journal of neurosurgery
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Journal of neurosurgery · Mar 2013
Nervus intermedius dysfunction following Gamma Knife surgery for vestibular schwannoma.
The purpose of this study was to evaluate the function of the nervus intermedius, the nonmotor component of the facial nerve, following modern Gamma Knife surgery (GKS) for the treatment of vestibular schwannoma. ⋯ The authors demonstrated that 22% of patients undergoing modern GKS for vestibular schwannoma experience various disturbances of nonmotor components of the facial nerve as a result of the radiosurgery. Through this study, we can provide useful information about the likelihood of certain postradiosurgical symptoms for vestibular schwannoma.
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Journal of neurosurgery · Mar 2013
Case ReportsNucleus caudalis dorsal root entry zone lesioning for the treatment of anesthesia dolorosa.
Deafferentation facial pain (anesthesia dolorosa) can occur after injury of the first-order trigeminal nerve. It is often debilitating and difficult to treat. The authors report the treatment of anesthesia dolorosa in a 69-year-old man with a 7-year history of pain. ⋯ His facial pain was immediately and completely eliminated. The authors describe the technique of this central neuroablative procedure, and they review the available literature regarding this procedure as well as the current evidence base for neuromodulatory surgeries. After the 1-year follow-up, the authors conclude that the patient attained lasting relief.
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Journal of neurosurgery · Mar 2013
The effect of exercise on mobilization of hematopoietic progenitor cells involved in the repair of sciatic nerve crush injury.
Object Mobilization of hematopoietic progenitor cells (HPCs) from bone marrow involved in the process of peripheral nerve regeneration occurs mostly through deposits of CD34(+) cells. Treadmill exercise, with either differing intensity or duration, has been shown to increase axon regeneration and sprouting, but the effect of mobilization of HPCs on peripheral nerve regeneration due to treadmill exercise has not yet been elucidated. Methods Peripheral nerve injury was induced in Sprague-Dawley rats by crushing the left sciatic nerve using a vessel clamp. ⋯ In addition, deposits of CD34(+) cells in crushed nerves paralleled the elevated expressions of von Willebrand factor, isolectin B4, and vascular endothelial growth factor. Conclusions Bone marrow HPCs, especially CD34(+) cells, were able to be mobilized by low-intensity treadmill exercise, and this effect paralleled the significant expression of angiogenesis factors. Treadmill exercise stimulation of HPC mobilization during peripheral nerve regeneration could be used as a therapy in human beings.