World Neurosurg
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Although the use of different types of valves has been extensively studied in shunt surgery for communicating hydrocephalus (cHC), a consensus about the valve type remains absent. The objective of this study is to evaluate our results with the primary placement of nonprogrammable valves (NPVs) for this indication. ⋯ Overall, our results in terms of shunt revisions as well as clinical and radiologic evolution are comparable to the literature for NPV. vv-3DSAS can be used and could be useful to detect small changes in VV in patients with cHC.
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Despite benefits of awake craniotomy (AC) many centers do not have access to it. We demonstrated the oncological and functional results of our initial experience in implementing AC in a context of resource limited setting. ⋯ Functional decline was clearly observed in the immediate postoperative period, but excellent recovery of functional status was observed in the medium and long term. The data presented indicate the benefits of this mapping in both cerebral hemispheres, addressing several cognitive functions in addition to motricity and language. The proposed AC model is a reproducible technique and resource sparing that can be performed safely and with good functional outcomes.
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To characterize and classify the location of recurrence in surgically resected World Health Organization (WHO) grade 2 intracranial meningiomas that did not receive adjuvant radiation and compare the recurrence pattern of those who underwent gross total resection (GTR) versus subtotal resection (STR). ⋯ The present study evaluating patterns of recurrence for WHO grade 2 meningiomas after surgical resection (GTR or STR) showed that recurrence occurred centrally and/or at the original tumor margin, with only a few recurring >1 cm outside the original tumor margin. The results of this study suggest that treatment, whether initial surgical resection or adjuvant radiation, may benefit from including at least a 1-cm dural margin when safe, to optimize tumor control, but further clinical study is needed.
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To determine whether diffusion tensor imaging (DTI) parameters acquired with model-based DTI and model-free generalized Q-sampling imaging (GQI) reconstructions may noninvasively predict isocitrate dehydrogenase (IDH) mutational status in patients with grade 2-4 gliomas. ⋯ The imaging parameters acquired from model-based DTI and model-free GQI reconstructions, combined with the clinical variable age, may have the ability to noninvasively predict the IDH genotype in gliomas, either alone or in particular combinations.
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The present study assumed that the effects of deformity correction amounts on proximal junctional kyphosis (PJK) development after long deformity surgery would vary according to uppermost instrumented vertebrae (UIV) levels. Our study was to reveal the association between the amount of correction and PJK according to UIV levels. ⋯ The correction amount of sagittal deformity increased the risk of PJK only in patients with UIV at or below T11. However, it was not associated with PJK development in patients with UIV at or above T10.