Preoperative meningioma embolization reduces perioperative blood loss: a multi-center retrospective matched case-control study.

Background And Purpose: The utility of preoperative embolization remains controversial within the literature. Here, we evaluate whether preoperative meningioma embolization is effective in reducing intraoperative blood loss, safe to perform, and cost-effective when compared with surgical resection without preoperative embolization.

Methods: Twenty-nine patients with meningiomas were matched by tumor size and location to 29 control patients with meningiomas at another institution where preoperative embolization was not practiced.

Radiation-induced spinal cord glioblastoma subsequent to treatment of medulloblastoma: case report.

Medulloblastomas are one of the most common malignant pediatric brain tumors. Therapy has evolved into multimodality treatments consisting of surgery, radiation, and adjuvant chemotherapy. While craniospinal radiation remains standard for patients older than 3 years of age, it is not free of side effects and long-term complications.

Unique Neurosurgical Morbidity and Mortality Conference Characteristics: A Comprehensive Literature Review of Neurosurgical Morbidity and Mortality Conference Practices with Proposed Recommendations.

Objective: The aim of the present study was to review the reported data for neurosurgical complication definitions, report the current scales used to classify these complications, and discuss their limitations.

Methods: A systematic review was performed through a PubMed search using predetermined MeSH terms and inclusion criteria. Studies meeting the inclusion criteria were specific to the field of neurosurgery and had presented a unique complication grading scale.

Bone Overgrowth Causing Proximal Ventriculoperitoneal Shunt Malfunction.

Background: Hydrocephalus is an international disease process that is commonly treated surgically with a ventriculoperitoneal shunt. This device may be prone to malfunction, most commonly from obstruction, disconnection, or infection.

Case Description: A 35-year-old female with hydrocephalus and a ventriculoperitoneal shunt presented with altered mental status and imaging concerning for a shunt malfunction.

Development of Delayed Posttraumatic Acute Subdural Hematoma.

Background: Prior studies have shown that most patients with mild traumatic brain injury or negative computed tomography (CT) scans of the head rarely decline or require neurosurgical interventions. One common reason for a delayed decline is an intracranial hemorrhage that presents within 24-48 hours. This is typically seen in elderly patients and/or patients on antiplatelet or anticoagulation agents.

Model systems for the study of steroid-induced IOP elevation.

Steroid-induced IOP elevation affects a significant number of patients. It results from a decrease in outflow facility of the aqueous humor. To understand the pathophysiology of this condition a number of model systems have been created.

Superoxide radical anions on the surface of zirconia and sulfated zirconia: formation mechanisms, properties and structure.

In situ ESR spectroscopy has been used for direct comparison of different thermal and light-induced processes leading to generation of superoxide radical anions on the surface of various zirconia and sulfated zirconia materials. For materials of both types the magnetic resonance parameters of the radical anions were found to be practically independent of the generation method, except for oxygen coadsorption with NO that yields radicals with somewhat smaller gz values. The parameters appear to depend mostly on the state of the surface zirconia cations stabilizing the radical anions, so that the g tensor anisotropy is significantly smaller over sulfated zirconia.