Journal of neurosurgery
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Journal of neurosurgery · Jan 2025
Safety and efficacy of the Contour Neurovascular System for intracranial aneurysm treatment: a retrospective analysis of 76 patients.
The Contour Neurovascular System (CNS) is a novel intrasaccular flow-disrupting device for the treatment of intracranial aneurysms. This study presents the authors' institutional experience and midterm follow-up results with this device. ⋯ The use of the CNS was safe and feasible but proper aneurysm selection appears to be required, which may be facilitated with increasing operator experience and further study of this device. Similar to other intrasaccular flow disrupters, midterm complete occlusion rates are moderate but may increase with longer follow-up.
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Journal of neurosurgery · Jan 2025
Comparative StudyMetabolic profiling of atypical meningioma and recurrent meningioma: a comparative analysis with proton magnetic resonance spectroscopy.
Meningiomas are predominantly benign, but some cases exhibit recurrent growth after surgery and undergo malignant transformation to WHO grade 2 or grade 3. Despite progress in genetic analyses, advancements in metabolomic analysis remain less established. Herein, the authors investigated metabolic activity differences between WHO grade 1 meningiomas and WHO grade 2 or 3 meningiomas by noninvasively using proton magnetic resonance spectroscopy (1H-MRS), aiming to preoperatively estimate malignancy. They also reviewed the literature to elucidate this aspect of meningioma research. ⋯ In cases pathologically graded as WHO grade 2 or 3 meningiomas, metabolic products such as glutamine, glutamate, lipids, and choline increased significantly. These changes were correlated with elevation of the MIB-1 LI. In group II, the mean MIB-1 LI was 8.58, significantly higher than in group I, suggesting a strong association with pathological malignancy. Therefore, 1H-MRS may help to noninvasively predict tumor metabolic activity and tumor recurrence. Furthermore, the authors concluded from the ROC analysis that glutamine may be a potential indicator of future growth of meningioma and benefits of early surgery.
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Journal of neurosurgery · Jan 2025
Pseudocapsular resection to prevent recurrence in nonfunctioning pituitary neuroendocrine tumors: a retrospective, single-center study with more than 5 years of follow-up.
Pseudocapsular resection is a well-recognized, useful approach to achieve endocrinological remission in functioning pituitary neuroendocrine tumors (PitNETs). However, its advantage in nonfunctioning PitNETs (NF-PitNETs) has not been established. This study aimed to clarify the contribution of pseudocapsular resection to the prevention of NF-PitNET recurrence in long-term follow-up. ⋯ Pseudocapsular resection may reduce the rate of tumor recurrence and improve the management of NF-PitNETs in long-term follow-up.
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Journal of neurosurgery · Jan 2025
Presentation, surgical outcome, and supplementary motor area syndrome risk of posterior superior frontal gyrus tumors.
Following resection of posterior superior frontal gyrus (PSFG) tumors, patients can experience supplementary motor area (SMA) syndrome consisting of contralateral hemiapraxia and/or speech apraxia. Given the heterogeneity of PSFG tumors, the authors sought to determine the risk of postoperative deficits and assess predictors of outcomes for all intraparenchymal PSFG tumors undergoing surgery (biopsy or resection), regardless of histology. ⋯ Nearly half of all patients undergoing resection of PSFG-region tumors experience a postoperative SMA syndrome. Individuals with corpus callosum and/or motor cortex involvement may be at an increased risk of experiencing SMA syndrome. However, these deficits are usually transient, and the risk of permanent new deficits is very low (3%). Preoperative characteristics including corpus callosum involvement and tumor enhancement-in addition to pathology-might serve as predictors of overall survival within this patient population.
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Journal of neurosurgery · Jan 2025
Historical ArticleThe history of Bellevue Neurosurgery: a legacy of learning, discovery, and service.
The authors present a historical overview of NYU-Bellevue Neurosurgery, highlighting key events and influential faculty. Bellevue Hospital, the first public hospital in the US, was established in 1736 and has grown via its affiliation with New York University (now NYU Langone Health) from 1898 to the present. ⋯ NYU-Bellevue Neurosurgery began as a department in 1951 under Dr. Thomas Hoen and has since fostered notable faculty and graduates while contributing to the development of clinical neuroscience.