World Neurosurg
-
Exact identification of feeding arteries, shunt points, and draining veins is essential in treating cavernous sinus dural arteriovenous fistula (CS dAVF). In addition to digital subtraction angiography (DSA) and 3-dimensional rotational angiography (3DRA), high-resolution cone beam computed tomography (CBCT; especially 80-kv high-resolution cone beam computed tomography) have been performed in recent years. We evaluated the efficacy of CBCT in treating CS dAVF. ⋯ The efficacy of CBCT in treating dAVF is illustrating the relationships among the bony structures and feeders, compartment of CS, and the position of the microcatheter. Detailed information obtained with CBCT can lead to fewer complications and more effective treatment.
-
Comparative Study
Intradural spinal tumors - a review of post-operative outcomes comparing intramedullary and extramedullary tumors from a single institution's experience.
Intradural spinal tumors are rare and can be classified into extramedullary or intramedullary. They commonly present with symptoms such as intractable back pain or neurologic deficits. We retrospectively reviewed 91 cases of intradural spinal tumors that underwent surgery in our institution from 2011 to 2016 and assessed their clinical outcomes. ⋯ We achieved gross total resection in the majority of patients with both extramedullary and intramedullary tumors (65.4% vs. 70%, P = 0.91). Patients younger than 65 years (odds ratio [OR] 4.40, confidence interval [CI] 0.72-26.9, P = 0.11) and those who had complete resection of tumor (OR 2.92, CI 0.61-14.0, P = 0.18) were associated with higher odds of improved clinical outcomes, but the results were not statistically significant. The use of intraoperative neurophysiologic monitoring was not associated with improved neurologic outcomes compared with cases where it was not used (OR 0.56, CI 0.10-3.05, P = 0.50).
-
Surgical treatment of retrochiasmatic craniopharyngiomas is associated with higher rates of complications, mortality, failure of complete removal, and recurrence compared with craniopharyngiomas located elsewhere. These tumors lie behind the optic chiasm and when large can extend upward into the third ventricle and downward along the brain stem, making their adequate exposure challenging. Most of the proposed techniques either use a translamina terminalis route or require wide bony exposures. In this study, we assessed the feasibility of a subtemporal approach for achieving gross total resection of retrochiasmatic craniopharyngiomas. ⋯ A subtemporal approach can be an attractive alternative approach to accessing retrochiasmatic craniopharyngiomas. Outcomes are comparable to those associated with other widely used and time-consuming exposures.
-
Intraoperative functional cortical mapping using direct electrical stimulation may show a wider individual variability than suggested by noninvasive imaging data of healthy subjects. ⋯ Intraoperative functional cortical mapping using direct electrostimulation highlights that actual individual variability is wider than suggested by analyses of healthy subjects and results in atypical patterns of functional organization and structural and functional changes of the human cerebral cortex under pathologic conditions.
-
Genetic risk factors can contribute to the etiology of intracranial aneurysms (IAs), and the genetic predisposition of IAs is largely unknown. Our study aimed to explore the role of rare variations in IA susceptibility. ⋯ LOXL2 c.C133T is a pathogenic mutation that is responsible for a fraction of familial IAs.