World Neurosurg
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Blood blister aneurysms (BBAs) of the internal carotid artery (ICA) are challenging vascular lesions for neurosurgeons because they are fragile and difficult to clip. They are commonly found at the dorsal wall of the ICA. Trapping is an alternative for these lesions, accompanied by vascular reconstruction. However, they are sometimes close to the posterior communicating artery and anterior choroidal artery. ⋯ The anterior temporal approach to a BBA in the distal ICA is amenable to application of the oblique clip technique, which can provide direct inspection of the perforators emanating from the posteromedial wall of the ICA as well as obliteration of the pathologic wall. Furthermore, less retraction of the frontal lobe is also reasonable for avoidance of premature rupture of a fragile BBA.
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While carotid angioplasty and stenting (CAS) have become an established procedure, outcomes of early CAS for symptomatic extracranial carotid stenosis (SECS) remain poorly understood. The present study aimed at determining the effectiveness of early CAS in SECS. ⋯ For SECS patients who cannot undergo early carotid endarterectomy, early CAS is effective and safe if selectively indicated considering disease severity. Early and delayed CAS provide comparable mRS scores, incidence of symptomatic thromboembolic complications, CHS, and intracranial bleeding.
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Since 1957, the Simpson grading system has been considered a predictive system for meningioma recurrence. However, since then, surgical equipment and neurosurgical technique have developed extensively, so this grading system should be re-evaluated. This study aims to assess if the recurrence rate and recurrence-free survival (RFS) are different after Simpson grade I, II, and III resections in World Health Organization (WHO) grade I meningiomas. ⋯ We have shown that complete resection of WHO grade I meningiomas achieves excellent tumor control, regardless of Simpson grades. More aggressive attempts at tumor resection (ie, Simpson grade I) must be balanced against the risks of removing dura or damaging critical neurovascular structures.
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Case Reports
Seizure Freedom After Limited Hippocampal Radiofrequency Thermocoagulation: A Case Report.
Surgical interventions are often used for freedom from seizure in patients with drug-resistant mesial temporal lobe epilepsy. A patient with seizure foci in the left mesiotemporal region underwent limited-size stereotactic radiofrequency thermocoagulation (RF-TC) over the left hippocampus. ⋯ Favorable seizure control was achieved with minimally invasive RF-TC. Further use of this technique is warranted in cases of drug-resistant mesial temporal lobe epilepsy.
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Hyponatremia is common in patients with subarachnoid hemorrhage, but its effect on outcomes remains contentious. Fluctuation in sodium has been reported to negatively affect perioperative outcomes in general surgical patients, but not specifically in patients with a subarachnoid hemorrhage. The primary aim was to describe the relationship between 1) hyponatremia and 2) sodium fluctuations during intensive care and neurologic outcome at hospital discharge. ⋯ Sodium fluctuation, not hyponatremia, is associated with worse neurologic outcome in patients with aneurysmal subarachnoid hemorrhage. This is in contradistinction to current teaching and warrants further examination.