World Neurosurg
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Electrodes for stereotactic electroencephalography (SEEG) are typically fixed to the skull with anchor bolts. When anchor bolts are unavailable, electrodes have to be fixed using other methods, carrying the possibility of electrode shift. This study, therefore, evaluated the characteristics of electrode tip shift during SEEG monitoring in patients with electrodes fixed using the suture technique. ⋯ Greater scalp thickness difference correlated with greater TSD. Surgeons need to consider the degree of scalp thickness difference and electrode shift when using suture fixation, especially with temporal lobe entry.
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Subependymomas are uncommon, benign slow-growing neoplasms of the central nervous system preferentially arising within the fourth and lateral ventricles. Third ventricle involvement has been described rarely. The aim of this study is to provide the first systematic review of third ventricular subependymomas (TVSE) by analyzing all reported cases over 2 decades and describing a case example. ⋯ Subependymomas should be considered in the differential diagnosis of third ventricular tumors. The clinical presentation of TVSE mainly parallels hydrocephalus symptoms and, hence, awareness is of vital importance for timely treatment. The surgical goal should be gross total resection, which can be curative and offers greatest clinical improvement across the population.
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The trend of practice pattern and impact on health care utilization for surgery and radiation therapy (RT) in patients with glomus jugulare tumors (GJTs) is not well defined. ⋯ RT plays an increasingly important role in the treatment for patients with GJTs, with fewer complications and a comparable health care utilization at 1 year.
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To assess morphologic features of the prechiasmatic sulcus (PS) in Chiari malformation type I (CM-I). ⋯ SA value was approximately 25% greater in the CM-I group than in the control group; thus, CM-I patients had more vertical groove. The percentage of narrow-type (NSG + NFG) PS in the CM-I group was higher than in the control group.
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Modic changes (MC) of the vertebral endplates and facet joint degeneration are common causes of neck pain. No previous study has shown the prevalence of and relationship between MC and facet joint changes in cervical spondylotic myelopathy (CSM). The objective of this article was to study the endplate and facet joint changes in CSM. ⋯ MC in the cervical spine are common magnetic resonance imaging findings in patients with CSM ≥50 years old. Degenerative facet joint changes are found in the majority of patients with CSM regardless of age. We found a significant correlation between MC and facet joint changes at the same level, indicating that both imaging findings are involved in a common pathophysiological pathway.