Neurosurgery
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Case Reports
Biportal endoscopic management of third ventricle tumors in patients with occlusive hydrocephalus: technical note.
To present the feasibility and advantages of the biportal endoscopic management of posterior third ventricle tumors. As a result of recent developments in neuroendoscopy, classical third ventriculostomy has become a standard single burr hole procedure and a real alternative to shunting in the treatment of occlusive hydrocephalus. In patients with third ventricle tumors occluding the aqueduct, the acute development of hydrocephalus may often precede debilitating focal symptoms and signs. Forty percent of those tumors are radiosensitive, rendering craniotomy unnecessary. The goal of primary management is the alleviation of raised intracranial pressure and determination of the histological nature of the tumor. Cerebrospinal fluid shunting and the performance of a computed tomography- or magnetic resonance imaging-guided biopsy are generally suggested as the methods of choice. ⋯ The biportal endoscopic approach allowed independent visual control of both procedures, safe passages of the ventriculoscopes via the narrow foramen of Monro, and facile control of the intracranial pressure in the ventricles via the available four irrigation channels during the performance of tumor biopsy and fenestration of the floor of the third ventricle. In selected patients with infiltrating posterior third ventricle tumors, this procedure and postoperative radiotherapy may be an alternative to direct surgery or to shunting and performance of image-guided biopsy.
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Historical Article
Neurological surgery at New York University Medical Center.
New york university Medical Center underwent a complex evolution in a rapidly growing and dynamic city. Care for the hospital-based poor resulted in international preeminence in surgical techniques. Neurosurgery at New York University has also evolved to meet the demands of the Medical Center and the community. Developments in high technology surgery and telecommunications will provide an international resource and trainees who are prepared to face the challenges of practice in the next century.
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Comparative Study
Intraoperative autologous blood transfusion in intracranial surgery.
The purpose of this study was to evaluate the benefits of intraoperative autotransfusion of autologous blood on the conservation of allogenic blood, including cost-effectiveness and the consequences for hemoglobin level and coagulation tests. ⋯ Autologous blood transfusions were demonstrated to be safe in patients undergoing intracranial surgery and to be more cost-effective than allogenic blood transfusions. Intraoperative autologous blood transfusions may be used alone in more than half of the patients requiring transfusions during intracranial surgery and decrease the amount of allogenic blood used. Improvements in the monitoring for the need of performing this technique, as well as preoperative blood donations, would decrease the amount of allogenic blood transfused.
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Neurological deterioration, typically attributed to cerebral edema, is a rare but life-threatening complication in the treatment of diabetic ketoacidosis (DKA). We report the case of a child with DKA who became comatose but demonstrated acute obstructive hydrocephalus, instead of cerebral edema. ⋯ These observations emphasize the importance of recognizing hydrocephalus as a potentially reversible cause of coma in DKA and of initiating prompt neurosurgical intervention, if warranted.
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To determine the incidence of acute lung injury (ALI) in comatose patients after isolated traumatic brain injury, to determine whether specific brain lesions diagnosed by cranial computed tomographic scans are associated with ALI, and to determine the outcome of patients with head injuries who developed ALI. ⋯ ALI was common in comatose victims with an isolated traumatic brain injury and was associated with an increased risk of death or a severe neurological morbidity. ALI was associated with the global severity of head injury but not with specific anatomic lesions diagnosed by cranial computed tomographic scans.