World Neurosurg
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The recently described C1-C2 fixation without foramen magnum decompression (FMD) for the management of Chiari malformations (CMs) has sparked a controversy. C1-C2 fixation has been reported to be more effective than traditional FMD. However, the results after such a procedure have not been as well validated. We assessed the efficacy of C1-C2 distraction and fusion without FMD in patients with CM and without demonstrable atlantoaxial instability. ⋯ The overall results after C1-C2 distraction and fusion for CM without instability were not exceptionally better and appeared to be similar to the outcomes reported with FMD. The neurological improvement seen in some patients had possibly resulted from indirect ventral decompression (due to distraction of C1-C2) rather than the stabilization itself. The presence of bony anomalies such as an assimilated C1 arch, platybasia, basilar invagination, and ventral brainstem compression did not significantly influence the outcomes.
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The aim of this study was to evaluate regional variations in the management, complications, and total cost of admission for adolescent idiopathic scoliosis (AIS) treated by elective posterior spinal surgery (PSF, ≥4 levels). ⋯ Our study suggests that there may be regional variations in health care resource utilization in AIS patients undergoing multilevel posterior spinal fusions. Further study is warranted to determine the specific factors contributing to disparities in regional outcomes.
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This is a surgical video that sheds light on the utility of a new imaging modality GLOW800 (Leica Microsystems, Wetzlar, Germany) in resection of vascular tumors. We describe the surgical resection of posterior fossa hemangioblastoma in 2 different patients after informed consent was obtained. ⋯ In addition, it helped in the confirmation of complete resection of the lesion. Another advantage of GLOW800 was that it allowed safe resection of the lesion in and around highly eloquent areas with a narrow surgical corridor (Video 1).
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Pituicytoma is a rare neoplasm arising in the sellar region (World Health Organization grade I). Clinically, pituicytomas mimic nonfunctioning pituitary macroadenomas and are occasionally incidentally discovered at autopsy. Pituitary adenomas can occur with other sellar pathologies, and the term "collision sellar lesions" has been coined for this rare entity. There have only been a few reports of the coexistence of pituicytoma and pituitary adenoma. We present 2 cases of pituicytoma coexisting with acromegaly and Cushing disease. ⋯ Only 117 cases of pituicytoma have been reported since it was first described in 1955. Before our report, only 5 cases of patients with pituicytoma coexisting with pituitary adenoma had been described. The coexistence of these 2 entities may not just be a mere coincidence but may be due to a yet unknown pathophysiologic link or common progenitor lineage of both lesions. Association between pituicytoma and pituitary adenoma is increasingly being reported.
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The present study evaluated the early death and factors associated with early mortality in patients with glioma. ⋯ The early deaths rates, including 1 and 3 months after tumor resection in patients with glioma, have decreased slightly during the previous 40 years. The risk factors for early mortality included advanced age, male sex, tumor located in the lateral ventricle, cerebellum, or brainstem, receipt of biopsy only, no chemotherapy or radiotherapy, and specific histopathological types.