World Neurosurg
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The etiology of hydrocephalus associated with the small- to medium-sized vestibular schwannomas is still controversial. We investigated tumor-specific factors related to the association of hydrocephalus with small- to medium-sized vestibular schwannomas. ⋯ The size and ADC value of the tumor were significantly related to the association with hydrocephalus. The increased tumor ADC value was considered to be the result of degenerative change and suggested the involvement of protein sloughing in the etiology of the associated hydrocephalus.
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Case Reports Comparative Study
Superior Cerebellar Artery Aneurysms, the "Sui Generis" in Posterior Circulation: The Role of Microsurgery in the Endovascular Era.
Endovascular treatment in the present form has almost taken over the management of posterior circulation aneurysms. However, superior cerebellar artery (SCA) aneurysms are among the few that are said to be surgeon friendly with comparable outcome with microsurgery. This study includes a comparative analysis of the SCA aneurysms treated with microsurgery and endovascular techniques at our institute along with a pooled analysis of available literature on overall outcomes in these 2 forms of treatment. ⋯ Individual series on SCA aneurysms have not proved any outcome benefit of either treatment modality over the other. However, pooled analysis suggests that microsurgery provides complete and sustainable aneurysm occlusion, although with an inferior clinical outcome.
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Various complex techniques for depth electrode insertion in refractory epilepsy using preoperative imaging have been investigated. We evaluated a simple, accurate, cost-effective, and timesaving method using intraoperative magnetic resonance imaging (MRI). ⋯ Our frameless technique of depth electrode insertion using intraoperative MRI guidance is an accurate, reliable, cost-effective, and timesaving method for stereo-electroencephalography.
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Advanced age is known to be a significant risk factor for the rupture of intracranial aneurysms. The impact of age on outcomes of surgically treated patients with unruptured intracranial aneurysms (UIAs) is less clear. ⋯ Although risks and benefits of aneurysm treatment in older patients should be carefully considered, surgical treatment of UIAs in the elderly should be considered positively.
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Comparative Study
Olfactory Groove Meningiomas: Comparison of Extent of Frontal Lobe Changes after Lateral and Bifrontal Approaches.
Olfactory groove meningiomas often are behaviorally silent. Numerous surgical approaches have been described in the literature for the successful removal of these meningiomas. Lateral (pterional/frontolateral) and anterior (bifrontal/fronto-orbito-basal) approaches with their various modifications remain the 2 major corridors in resecting them. In this study, we discuss our experience in microsurgical treatment of these tumors at our institution and assess the extent of frontal lobe damage after the resection of tumor. ⋯ Lateral approaches (pterional/frontolateral) resulted in less frontal lobe change and better olfactory preservation in comparison to anterior approaches in present series.