Journal of neurosurgery
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Journal of neurosurgery · Oct 2023
Multicenter Study Observational StudyEndovascular treatment as first-line therapy in Spetzler-Martin grade III brain arteriovenous malformations: a multicenter retrospective study.
The management of Spetzler-Martin grade (SMG) III brain arteriovenous malformations (bAVMs) may be challenging, whatever the exclusion treatment modality chosen. The purpose of this study was to evaluate the safety and effectiveness of endovascular treatment (EVT) as a first-line treatment of SMG III bAVMs. ⋯ EVT of SMG III bAVMs provides encouraging results but needs further improvement. When the embolization procedure performed with intent to cure appears difficult and/or risky, a combined technique (with microsurgery or radiosurgery) may be a safer and more effective strategy. In terms of safety and effectiveness, the benefit of EVT (alone or included in a multimodal management strategy) for SMG III bAVMs needs to be confirmed by randomized controlled trials.
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Journal of neurosurgery · Oct 2023
Randomized Controlled TrialCryopreserved human umbilical cord as a meningeal patch during in utero spina bifida repair in a modified ovine model.
Despite in utero spina bifida (SB) repair, more than two-thirds of patients with SB are unable to ambulate independently, and 1 in 4 children need surgery for tethered cord by school age. The objective of this study was to test the cryopreserved human umbilical cord (HUC) as an antiscarring material to reduce tethering and improve function in a modified in utero SB repair model. ⋯ In a modified ovine SB model, the HUC as a meningeal patch allows regeneration of the arachnoid layer, prevents spinal cord tethering, and improves spinal cord function after in utero SB repair.
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Journal of neurosurgery · Oct 2023
Effects of carotid revascularization on cognitive function and brain functional connectivity in carotid stenosis patients with cognitive impairment: a pilot study.
Carotid stenosis can lead to both cognitive impairment (CI) and ischemic stroke. Although carotid revascularization surgery, which includes carotid endarterectomy (CEA) and carotid artery stenting (CAS), can prevent future strokes, its effect on cognitive function is controversial. In this study, the authors examined resting-state functional connectivity (FC) in carotid stenosis patients with CI undergoing revascularization surgery, with a particular focus on the default mode network (DMN). ⋯ These findings suggest that carotid revascularization, including CEA and CAS, might improve cognitive function based on brain FC in the DMN in carotid stenosis patients with CI.
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Journal of neurosurgery · Oct 2023
Femoral access site complications following neurointerventional procedures: economic implications at a single center.
Transfemoral access (TFA) has been the traditional route of arterial access for neurointerventional procedures. Femoral access site complications may occur in 2%-6% of patients. Management of these complications often requires additional diagnostic tests or interventions, each of which may increase the cost of care. The economic impact of a femoral access site complication has not yet been described. The objective of this study was to evaluate the economic consequences of femoral access site complications. ⋯ Although occurring relatively infrequently, femoral artery access site complications increase the cost of care for patients undergoing neurointerventional procedures; how this influences the cost effectiveness of neurointerventional procedures warrants further investigation.
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Journal of neurosurgery · Oct 2023
Observational StudyOscillation analysis as a supporting element toward safe and reliable lumbar catheter intracranial pressure monitoring.
Lumbar drainage of cerebrospinal fluid for treatment of refractory increased intracranial pressure (ICP) is associated with the risk of infratentorial herniation, but real-time biomarkers for signaling herniation at bedside are lacking. Here, the authors tested whether an alteration of pulsatile waveform conduction across the level of the foramen magnum could serve as an indicator of insufficient hydrostatic communication and impending herniation. ⋯ Oscillation behavior analysis of LP and ABP waveforms during controlled lumbar drainage may serve as a personalized, simple, and effective biomarker to signal impending infratentorial herniation in real time without the need for simultaneous ICP monitoring.