The association of Edaravone with shunt surgery improves behavioral performance, reduces astrocyte reaction and apoptosis, and promotes neuroprotection in young hydrocephalic rats.

The neuroprotective effect of Edaravone in young hydrocephalic rats associated with a CSF derivation system was evaluated. The drug has already been shown to be beneficial in experimental hydrocephalus, but the combination of this drug with shunt surgery has not yet been investigated. Fifty-seven-day-old Wistar rats submitted to hydrocephalus by injection of kaolin in the cisterna magna were used and divided into five groups: control (n = 10), hydrocephalic (n = 10), hydrocephalic treated with Edaravone (20 mg/kg/day) (n = 10), hydrocephalic treated with shunt (n = 10) and hydrocephalic treated with shunt and Edaravone (n = 10). Administration of the Edaravone was started 24 h after hydrocephalus induction (P1) and continued until the experimental endpoint (P21). The CSF shunt surgery was performed seven days after hydrocephalus induction (P7). Open-field tests, histological evaluation by hematoxylin and eosin, immunohistochemistry by Caspase-3 and GFAP, and ELISA biochemistry by GFAP were performed. Edaravone reduced reactive astrogliosis in the corpus callosum and germinal matrix (p < 0.05). When used alone or associated with CSF shunt surgery, the drug decreased the cell death process (p < 0.0001) and improved the morphological aspect of the astroglia (p < 0.05). The results showed that Edaravone associated with CSF bypass surgery promotes neuroprotection in young hydrocephalic rats by reducing reactive astrogliosis and decreasing cell death.

Memantine associated with ventricular-subcutaneous shunt promotes behavioral improvement, reduces reactive astrogliosis and cell death in juvenile hydrocephalic rats.

Hydrocephalus is defined as the accumulation of cerebrospinal fluid in the brain ventricles. The usual treatment of hydrocephalus is surgical (shunt), but not all patients can undergo treatment immediately after diagnosis. Thus, neuroprotective measures were tested to minimize the tissue damage involved. Memantine is a non-competitive antagonist of the N-methyl-D-aspartate (NMDA) receptor, which has shown a neuroprotective action in neurodegenerative diseases. This study aimed to evaluate the neuroprotective response of memantine in animals treated with or without a ventricular-subcutaneous shunt. Seven-day-old male Wistar rats induced by intracisternal injection of kaolin were used, divided into five groups: intact control (n = 10), hydrocephalic (n = 10), hydrocephalic treated with memantine (20 mg/kg/day) (n = 10), hydrocephalic treated with shunt (n = 10), hydrocephalic treated with shunt and memantine (20 mg/kg/day) (n = 10). Memantine administration was started on the day after hydrocephalus induction and continued until the last day of the experimental period, totaling 21 consecutive days of drug application. The CSF shunt surgery was performed seven days after hydrocephalus induction. Behavioral tests (open field, and modified Morris water maze), histological, and immunohistochemical evaluations were performed. Treatment with memantine resulted in significant improvement (p < 0.05) in sensorimotor development, preservation of spatial memory, reduction of astrocytic reaction in the corpus callosum, cortex, and germinal matrix. When associated with the shunt, it has also been shown to reduce the cell death cascade. It is concluded that memantine is a promising adjuvant drug with beneficial potential for the treatment of lesions secondary to hydrocephalus.

Contralateral extradural hematoma following decompressive craniectomy for acute subdural hematoma (the value of intracranial pressure monitoring): a case report.

INTRODUCTION: Decompressive surgery for acute subdural hematoma leading to contralateral extradural hematoma is an uncommon event with only few cases previously reported in the English medical literature. CASE PRESENTATION: The present study describes the case of a 39-year-old White Brazilian man who had a motorcycle accident; he underwent decompressive craniectomy for the treatment of acute subdural hematoma and evolved contralateral extradural hematoma following surgery. CONCLUSION: The present case highlights the importance of close monitoring of the intracranial pressure of severe traumatic brain injury, even after decompressive procedures, because of the possible development of contralateral extradural hematoma.

O custo da neurocirurgia no Sistema Único de Saúde no Hospital de Base de São José do Rio Preto / The cost of neurosurgery in Public Health System in Hospital Base of São Jose do Rio Preto

Objetivo: Estudar a gestão financeira da neurocirurgia no Sistema Único de Saúde (SUS) brasileiro no Hospital de Base de São José do Rio Preto. Métodos: Foram avaliados 246 AIH (Autorizações de Internações Hospitalares) dos pacientes internados no Hospital de base no período de dezembro de 2012 a junho de 2013, sendo catalogados o gasto total do paciente durante a internação, idade, dias de internação, local de origem, nome completo e registro hospitalar, e comparados os valores com os valores pagos pelo SUS de acordo com a legislação em atividade. Resultados: O total de gasto do hospital nas cirurgias eletivas foi de R$ 718.036,70, e o valor pago pelo SUS foi de R$ 321.607,45, evidenciando um déficit de R$ 395.329,17. Em contrapartida, o gasto pelo hospital nas cirurgias de urgência foi de R$ 707.698,28 e o valor pago pelo SUS, de R$ 199.599,94, evidenciando um déficit de R$ 508.098,34. Conclusão: A tabela de distribuição financeira de acordo com os procedimentos do SUS encontra-se desatualizada, principalmente nas subespecialidades que utilizam materiais, por exemplo, a neurocirurgia vascular e de coluna. Além disso, o valor pago pelo SUS nas cirurgias de trauma encontra-se, sobremaneira, inferior ao valor gasto pela instituição, necessitando, assim, de revisão dos gastos e reestudo dos valores pagos pelos procedimentos.

Objective: Study the financial management of neurosurgery in the Brazilian Unified Health System in Base Hospital of São Jose do Rio Preto. Methods: 246 AIH (Permits to Hospitalization) of patients at the Hospital of the base in a period of December 2012 to June 2013, being cataloged the total expense of the patient during hospitalization, age, length of stay, place of origin, full name and hospital and compared the values with the amounts paid by SUS according to the legislation in activity. Results: The total expense for the Hospital in elective surgery was R$ 718,036.70 and the amount paid by SUS was R$ 321,607.45 showing a deficit of R$ 395,329.17. In return for spending hospital in emergency surgery was R$ 707,698.28 and the amount paid by SUS R$ 199,599.94, showing a deficit of R$ 508,098.34. Conclusion: The financial distribution table according to the procedures SUS is outdated, particularly in sub-specialties that use materials such as neurosurgery and vascular column furthermore sustained by the amount paid in surgical trauma is, greatly lower than the amount spent by the institution, thus requiring spending review and restudy of the amounts paid by the procedures.