Journal of neurosurgery
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Journal of neurosurgery · Apr 2022
Awake craniotomy with transcortical motor evoked potential monitoring for resection of gliomas within or close to motor-related areas: validation of utility for predicting motor function.
The authors previously showed that combined evaluation of changes in intraoperative voluntary movement (IVM) during awake craniotomy and transcortical motor evoked potentials (MEPs) was useful for predicting postoperative motor function in 30 patients with precentral gyrus glioma. However, the validity of the previous report is limited to precentral gyrus gliomas. Therefore, the current study aimed to validate whether the combined findings of IVM during awake craniotomy and transcortical MEPs were useful for predicting postoperative motor function of patients with a glioma within or close to motor-related areas and not limited to the precentral gyrus. ⋯ This study validated the utility of combined application of IVM during awake craniotomy and transcortical MEP monitoring to predict motor function at 6 months after surgery in patients with a glioma within or close to motor-related areas, not limited to the precentral gyrus. The authors also validated the usefulness of the cutoff value, 100 µV, in MEP monitoring.
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Journal of neurosurgery · Apr 2022
Observational StudyIntraplaque high-intensity signal on time-of-flight magnetic resonance angiography and restenosis after carotid artery stenting.
To test the hypothesis that intraplaque hemorrhage is a predictor of restenosis after carotid artery stenting (CAS), the association between intraplaque high-intensity signal (HIS) on time-of-flight MR angiography (TOF-MRA), as a marker of intraplaque hemorrhage, and restenosis after CAS was assessed in the present observational study. ⋯ Intraplaque HIS on TOF-MRA was associated with increased risk of restenosis after CAS. The present results indicate that intraplaque hemorrhage is a predictor of restenosis after CAS.
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Journal of neurosurgery · Apr 2022
Historical ArticleDr. Louise Eisenhardt's personal notes: how she and Dr. Cushing collected data and followed patients.
Dr. Louise Eisenhardt was one of the first neuropathologists and was responsible for the development of tumor diagnosis guidelines. This historical vignette reviews her previously unseen handwritten notes in which she describes methods used by her and Dr. ⋯ Drs. Eisenhardt and Cushing believed "every case was important in adding to our collective knowledge of various types of tumors particularly in relationship to life expectancies and suggesting improvement in surgical treatments." Dr. Eisenhardt's meticulous record keeping allows for insights into the first known outcomes-related tumor registry in neurosurgery.
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Journal of neurosurgery · Apr 2022
Multicenter StudyLong-term health-related quality of life and neurocognitive functioning after treatment in skull base meningioma patients.
Patients with skull base meningioma (SBM) often require complex surgery around critical neurovascular structures, placing them at high risk of poor health-related quality of life (HRQOL) and possibly neurocognitive dysfunction. As the survival of meningioma patients is near normal, long-term neurocognitive and HRQOL outcomes are important to evaluate, including evaluation of the impact of specific tumor location and treatment modalities on these outcomes. ⋯ In the long term, SBM patients do not experience significantly more sequelae in HRQOL and neurocognitive functioning than do controls or patients with convexity meningioma. Patients with posterior SBM had poorer HRQOL than anterior/middle SBM patients, and primary treatment with radiotherapy was associated with worse HRQOL. Neurocognitive functioning was not affected by tumor location or treatment modality.
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Journal of neurosurgery · Apr 2022
Risk of tract recurrence with stereotactic biopsy of brain metastases: an 18-year cancer center experience.
Stereotactic biopsy is increasingly performed on brain metastases (BrMs) as improving cancer outcomes drive aggressive multimodality treatment, including laser interstitial thermal therapy (LITT). However, the tract recurrence (TR) risk is poorly defined in an era defined by focused-irradiation paradigms. As such, the authors aimed to define indications and adjuvant therapies for this procedure and evaluate the BrM-biopsy TR rate. ⋯ In this study the authors identified a nontrivial, higher than previously described rate of BrM-biopsy tract recurrence, which often required additional surgery or radiation and justified close radiographic surveillance. As BrMs are commonly treated with SRS limited to enhancing tumor margins, consideration should be made, in cases lacking CNS-active systemic treatments, to include biopsy tracts in adjuvant radiation plans where feasible.