Avances recientes en el diagnóstico imagenológico de la hidrocefalia en niños. Revisión de la literatura de los últimos seis años / Recent advances of the imagological diagnosis of hydrocephalus in children. Review of the literature of the last six years

Resumen La hidrocefalia es un problema de salud frecuente en pediatría, en particular durante el primer mes de vida. La incidencia en América Latina es una de las más altas del mundo. En Colombia no existen datos representativos sobre la incidencia real de esta enfermedad. Recientes hallazgos relacionados con la dinámica del líquido cefalorraquídeo permitieron proponer nuevos modelos sobre la fisiopatología de la hidrocefalia que, junto con los hallazgos en la Resonancia Magnética, han llevado a tener una mejor comprensión de la enfermedad. El objetivo de este articulo es realizar una revisión de la información disponible en la literatura sobre los avances en la fisiopatología de la enfermedad y los hallazgos en neuroimágenes, además de realizar una breve revisión sobre el papel de estas en el diagnóstico y seguimiento de los pacientes. Se realizó una revisión bibliográfica con términos MeSH, en las bases de datos de PUBMED, OVID y SCOPUS con artículos publicados en los últimos 6 años, seleccionado un total de 30 artículos que abordaron el tema de forma integral. Los nuevos hallazgos descritos como lo son el sistema glinfático y el papel de las AQP4 y los avances en las neuroimágenes, sobre todo de la resonancia magnética, han ayudado a comprender mejor esta entidad, apoyando el desarrollo de un nuevo modelo de la dinámica del líquido cefalorraquídeo y a partir de él diferentes explicaciones sobre la fisiopatología. MÉD.UIS.2022;35(1): 17-29.

Abstract Hydrocephalus is a frequent health problem in pediatrics, particularly during the first month of life. The incidence in Latin America is one of the highest in the world. In Colombia there are no representative data. Recent findings related to the dynamics of cerebrospinal fluid allowed proposals of new models on the pathophysiology of hydrocephalus that, along with new findings on MRI, have led to a better understanding of the disease. The aim of this work is to review the information available in the literature about the progress in the pathophysiology of the disease and neuroimaging findings, in addition to conducting a brief review on the role of these in the diagnosis and follow-up of patients. A bibliographic review with MeSH terms was carried out in PUBMED, OVID and SCOPUS databases, with articles published in the last 6 years. 30 articles that dealt with the theme in a comprehensive way were included. New findings described as the glymphatic system and the role of AQP4, along with advances in neuroimaging, especially MRI, have helped to better understand hydrocephalus, supporting the development of a new model of cerebrospinal fluid dynamics, and based on it, different explanations regarding its pathophysiology. MÉD.UIS.2022;35(1): 17-29.

Historical Clinical Outcomes of Children with Myelomeningocele Meeting the Criteria for Fetal Surgery: A Retrospective Cohort Survey of Brazilian Patients / Resultados clínicos históricos de crianças com mielomeningocele com critérios para cirurgia fetal: Um estudo de coorte retrospectivo de pacientes brasileiros

Abstract Objective To analyze the historical clinical outcomes of children with myelomeningocele (MMC) meeting the criteria for fetal surgery, but who underwent postnatal primary repair. Methods Data from children undergoing postnatal MMC repair between January 1995 and January 2015 were collected from the Neurosurgery Outpatient Clinic's medical records. Children were included if they had ≥1 year of postoperative follow-up andmet the criteria for fetal surgery. The children's data were then stratified according to whether they received a shunt or not. The primary outcome was mortality, and secondary outcomes were educational delays, hospitalization, recurrent urinary tract infections (UTIs), and renal failure. Results Over the 20-year period, 231 children with MMC were followed up. Based on clinical data recorded at the time of birth, 165 (71.4%) qualify of fetal surgery. Of the 165 patients, 136 (82.4%) underwent shunt placement. The mortality rate was 5.1% in the group with shunt and 0% in the group without, relative risk (RR) 3.28 (95% confidence interval, 95% CI, 0.19-55.9). The statistically significant RRs for adverse outcomes in the shunted group were 1.86 (95% CI, 1.01-3.44) for UTI, 30 (95% CI, 1.01-537) for renal failure, and 1.77 (95% CI, 1.09-2.87) for hospitalizations. Conclusion Children with MMC qualifying for fetal surgery who underwent shunt placement were more likely to have recurrent UTIs, develop renal failure, and be hospitalized. Since approximately half of the shunt procedures could be avoided by fetal surgery, there is a clinical benefit and a possible financial benefit to the implementation of this technology in our setting.

Resumo Objetivo Analisar os resultados clínicos históricos de crianças commielomeningocele (MMC) com critérios para cirurgia fetal,mas que foram submetidas a cirurgia pós-natal. Métodos Dados de crianças submetidas à correção deMMCpós-natal entre janeiro de 1995 e janeiro de 2015 foram coletados nos prontuários do Ambulatório de Neurocirurgia. Foram incluídas crianças se tivessem ≥ 1 ano de acompanhamento pósoperatório e atendessem os critérios para cirurgia fetal. As informações dessas crianças foram então estratificadas de acordo com se receberam ou não derivação do líquido cefalorraquidiano. O desfecho primário foi a mortalidade e os desfechos secundários foram atrasos educacionais, hospitalização, infecções recorrentes do trato urinário einsuficiência renal. Resultados Durante o período de 20 anos, 231 crianças com MMC foram acompanhadas. Com base nos dados clínicos registrados no momento do nascimento, 165 (71,4%) atendiam critérios para a cirurgia fetal. Dos 165 pacientes, 136 (82,4%) foram submetidos à colocação de derivação do líquido cefalorraquidiano. A taxa de mortalidade foi de 5,1% no grupo com derivação do líquido cefalorraquidiano e 0% no grupo sem risco relativo (RR) 3,28 (intervalo de confiança 95%, IC 95%, 0,19-55,9). Os RRs estatisticamente significativos para resultados adversos no grupo com derivação do líquido cefalorraquidiano foram 1,86 (IC 95%, 1,01-3,44) para infecção do trato urinário, 30 (IC 95%, 1,01-537) para insuficiência renal e 1,77 (IC 95%, 1,09-2,87) para hospitalizações. Conclusão Crianças com MMC com critérios para cirurgia fetal submetidas à colocação de derivação do líquido cefalorraquidiano eram mais propensas a ter infecções recorrentes do trato urinário, desenvolver insuficiência renal e serem hospitalizadas. Como aproximadamente metade dos procedimentos de derivação poderiam ser evitados por cirurgia fetal, há um benefício clínico e um possível benefício financeiro com a implementação dessa tecnologia em nosso meio.

Simultaneous Cranioplasty and External Ventricular Drain Implantation in Patients with Hydrocephalus: Case Series and Literature Review

Introduction The increase in intracranial pressure (ICP) is a neurological complication resulting from numerous pathologies that affect the brain and its compartments. Therefore, decompressive craniectomy (DC) is an alternative adopted to reduce ICP in emergencies, especially in cases refractory to clinical therapies, in favor of patient survival. However, DC is associated with several complications, including hydrocephalus (HC). The present study presents the results of an unusual intervention to this complication: the implantation of an external ventricular drain (EVD) in the intraoperative period of cranioplasty (CP). Methods Patients of both genders who presented with HC and externalization of the brain through the cranial vault after decompressive hemicraniectomy and underwent EVD implantation, to allow the CP procedure, in the same surgical procedure, were included. Results Five patients underwent DC due to a refractory increase in ICP, due to automobile accidents, firearm projectiles, falls from stairs, and ischemic strokes. All evolved with HC. There was no uniform time interval between DC and CP. The cerebrospinal fluid (CSF) was drained according to the need for correction of cerebral herniation in each patient, before undergoing cranioplasty. All patients progressed well, without neurological deficits in the immediate postoperative period. Conclusion There are still several uncertainties about the management of HC resulting from DC. In this context, other CP strategies simultaneous to the drainage of CSF, not necessarily related to ventriculoperitoneal shunt (VPS), should be considered and evaluated more deeply, in view of the verification of efficacy in procedures of this scope, such as the EVD addressed in this study.

Repercussão de intervenção educativa no conhecimento da equipe de enfermagem sobre os cuidados no uso da derivação ventricular externa em pediatria / Repercussion of an educational intervention on the knowledge of the nursing team regarding the use of external ventricular drains in pediatrics / Repercusión de la intervención educativa en el conocimiento del personal de enfermería sobre cuidados en el manejo del drenaje ventricular externo en pediatría

Objetivo: este estudo objetivou analisar a repercussão de intervenção educativa no conhecimento teórico da equipe de Enfermagem sobre os cuidados no uso da derivação ventricular externa em Pediatria. Trata-se de estudo de intervenção não controlado, com delineamento do tipo antes e depois. Método: procedeu-se à aplicação de pré e pós-teste para a coleta de informações sobre os conhecimentos dos profissionais sobre os cuidados aos pacientes pediátricos com derivação ventricular externa. Entre o pré e o pós-teste realizou-se intervenção educativa usando-se a simulação clínica como estratégia de ensino. Participaram do estudo 41 profissionais de Enfermagem. Constatou-se mais assertividade após a intervenção educativa, principalmente na questão que versa sobre o uso da técnica asséptica para esvaziamento da bolsa coletora (p=0,021). As análises de correlação no préteste revelaram que o maior número de erros não esteve correlacionado a qualquer das variáveis sociodemográficas. Contudo, no pós-teste, identificou-se correlação significativa entre o número de erros com a idade dos profissionais (rho=0,340; p=0,015); tempo de formação dos profissionais (rho= 0,414; p=0,004); e tempo de atuação na unidade (rho=0,428; p=0,004). O resultado sinaliza, portanto, que profissionais com idades mais elevadas, mais tempo de profissão e de atuação na unidade tiveram menos aproveitamento da intervenção educativa, apresentando maior número de erros. A intervenção educativa usando a estratégia da simulação clínica possibilitou incremento no conhecimento dos participantes, podendo ser utilizado para a educação permanente, melhorando a qualidade da assistência.(AU)

Objective: This study aimed to analyze the repercussion of an educational intervention on the theoretical knowledge of the Nursing team regarding the use of external ventricular drains in Pediatrics. This is an uncontrolled intervention study, with a before and after study design. Method: A pre- and post-test was applied to collect information on the nurses' knowledge regarding the care of pediatric patients with external ventricular drains. Between the pre- and post-test, an educational intervention was performed using clinical simulation as a teaching strategy. 41 nursing professionals participated in the study. The professionals were more assertive after the educational intervention, especially regarding the use of an aseptic technique for emptying the collection bag (p=0.021). Correlation analyses in the pre-test revealed that the greatest number of errors was not correlated to any of the socio-demographic variables. However, in the post-test, a significant correlation was identified between the number of errors and the participants' age (rho=0.340; p=0.015); years since graduation (rho=0.414; p=0.004); and years of professional experience in the unit (rho=0.428; p=0.004). Therefore, the result shows that older professionals, with more...(AU)

Objetivo: analizar la repercusión de la intervención educativa en el conocimiento teórico del personal de enfermería sobre cuidados en el manejo del drenaje ventricular externo en pediatría. Estudio de intervención no controlado, con diseño antes ­ después. Método: se aplicó la prueba antes y después para la recogida de datos sobre el conocimiento de los profesionales acerca de los cuidados de pacientes pediátricos con drenaje ventricular externo. Entre las pruebas antes y después se realizó la intervención educativa con simulación clínica como estratégia de enseñanza. En el estudio participaron 41 profesionales de enfermería. Se constató más asertividad después de la intervención educativa, principalmente en lo referente al uso de la técnica aséptica para realizar el vaciado de la bolsa recolectora (p=0,021). Los análisis de correlación de la prueba anterior revelaron no haber ninguna correlación entre la cantidad de errores y alguna de las variables sociodemográficas. Sin embargo, en la prueba posterior se identificó la correlación significativa entre la cantidad de errores y la edad de los profesionales (rho=0,340; p=0,015); el tiempo de graduación (rho= 0,414; p=0,004); y el tiempo de trabajo en la unidad (rho=0,428; p=0,004). El resultado indica que los profesionales con más edad, más tiempo de profesión y de trabajo en la unidad aprovecharon menos la intervención educativa y que cometieron más errores. La intervención educativa usando la estrategia de la simulación clínica ha permitido aumentar el conocimiento de los participantes y podría adoptarse en la educación permanente con miras a mejorar la calidad asistencial.(AU)

Infecciones asociadas a sistemas de derivación de líquido cefalorraquídeo en pediatría: análisis epidemiológico y de factores de riesgo de mortalidad / Cerebrospinal fluid shunt-associated infections in pediatrics: Analysis of the epidemiology and mortality risk factors

Introducción. La infección es de las complicaciones más frecuentes de los sistemas de derivación ventricular de líquido cefalorraquídeo. El objetivo fue describir las características clínicas, microbiológicas y evolutivas de niños con infección asociada a sistemas de derivación ventricular de líquido cefalorraquídeo y analizar los factores de riesgo, relacionados con la mortalidad. Población y métodos. Estudio descriptivo, retrospectivo, llevado a cabo en el Hospital "Prof. Dr. Juan P. Garrahan" de la Ciudad de Buenos Aires. Se evaluaron todos los pacientes internados desde el 1/1/2012 y el 31/12/2015 compatibles con ventriculitis y cultivo de líquido cefalorraquídeo positivo. Resultados. Se incluyeron 49 pacientes con 57 infecciones. La mediana de edad fue de 62 meses (rango intercuartílico: 19-114). Predominó el sexo masculino: 34 (70%). El tumor del sistema nervioso central fue la enfermedad de base más frecuente: 20 (40%). Se aisló estafilococo coagulasa negativo en 26 (46%), Staphylococcus aureus en 13 (23%), bacilos Gramnegativos en 11 (19%) y otros en 7 (12%). En 55 (97%) de las infecciones, se realizó tratamiento quirúrgico con retiro del sistema de derivación ventricular más antibioticoterapia. La mortalidad fue del 9%. Los únicos factores asociados a la mortalidad estadísticamente significativos fueron hemocultivos positivos (p= 0,04), fiebre al ingreso (p= 0,04) y shock séptico (p= 0,0006). Conclusiones. El estafilococo coagulasa negativo fue el germen más frecuente. El retiro de la válvula, junto con la antibioticoterapia, fue el tratamiento más utilizado. La presencia de fiebre al ingreso, hemocultivos positivos y shock séptico fueron predictores de mortalidad.

Introduction. Infections are the most common complications of ventricular cerebrospinal fluid shunts. The objective of this study was to describe the clinical, microbiological, and evolutionary characteristics of children with ventricular cerebrospinal fluid shunt-associated infections and analyze the risk factors for mortality. Population and methods. Descriptive, retrospective study carried out at Hospital "Prof. Dr. Juan P. Garrahan" in the Autonomous City of Buenos Aires. All patients hospitalized between January 1st, 2012 and December 31st, 2015 who were compatible with ventriculitis and had a positive cerebrospinal fluid culture were assessed. Results. A total of 49 patients with 57 infections were included. Their median age was 62 months (interquartile range: 19-114). Males predominated: 34 (70%). A central nervous system tumor was the most common underlying disease: 20 (40%). Coagulase-negative Staphylococcus was isolated in 26 (46%); Staphylococcus aureus, in 13 (23%); Gram-negative bacilli, in 11 (19%); and other microorganism, in 7 (12%). Treatment consisted of removal of ventricular shunt plus antibiotic therapy for 55 (97%) infections. The mortality rate was 9%. The only statistically significant factors associated with mortality were positive blood cultures (p= 0.04), fever at the time of admission (p= 0.04), and septic shock (p= 0.0006). Conclusions. Coagulase-negative Staphylococcus was the most common microorganism. Valve removal plus antibiotic therapy was the most frequently instituted treatment. Fever at the time of admission, positive blood cultures, and septic shock were predictors of mortality.

Hydrocephalus in a Patient with Alzheimer's Disease

BACKGROUND: Normal pressure hydrocephalus (NPH) is an etiology of dementia that is reversible following cerebrospinal fluid shunt placement, however, surgical intervention not always clinically effective and the respons to shunt therapy is poorly understood. Furthermore, NPH is a source of comorbidity in diseases with neurodegenerative pathology, such as Alzheimer's disease (AD). CASE REPORT: A 61-year-old woman presented to the neurology clinic with progressive gait difficulties and cognitive impairment over five years. Nine years after ventriculoperitoneal (VP) shunt treatment, the patient began to experience frequent falls. There was no improvement in clinical symptoms after the alteration of valve pressure on the VP shunt. An 18F-florbetaben amyloid positron emission tomography scan showed increased diffusion uptake over the bilateral cortices, precuneus, and posterior cingulate cortex. CONCLUSIONS: The patient of NPH was unresponsive to shunt therapy due to the development of AD.

Infección asociada a sistema de derivación de LCR: Recomendaciones de diagnóstico y tratamiento basado en la evidencia / CSF shunt-related infection: Diagnostic recommendations and evidence-based treatment

Los sistemas de derivación ventricular de líquido cefalorraquí- deo son frecuentemente utilizados en neurocirugía pediátrica para el tratamiento de la hidrocefalia de diversas etiologías. La infección es una de las principales causas de morbimortalidad en niños que son sometidos a procedimientos de colocación de derivaciones. Resumimos en esta actualización el manejo de las infecciones asociadas a shunt de acuerdo a la mejor evidencia disponible. (AU)

Shunting systems of the ventricular cerebrospinal fluid are often used in pediatric neurosurgery for the treatment of hydrocephalus due to different etiologies. Infection is one of the main causes of morbidity and mortality in children who undergo shunting procedures. We present an evidence-based update on the management of shunt-related infections. (AU)

Cerebrospinal fluid drainage options for posthemorrhagic hydrocephalus in premature neonates / Opções de drenagem liquórica em neonatos prematuros com hidrocefalia pós hemorrágica

ABSTRACT Objective The literature describes various cerebrospinal fluid (CSF) drainage techniques to alleviate posthemorrhagic hydrocephalus in preterm newborns; however, consensus has not been reached. The scope of this study was describing a case series of premature neonates with posthemorrhagic hydrocephalus and assessing the outcomes of different approaches used for CSF diversion. Methods A consecutive review of the medical records of neonates with posthemorrhagic hydrocephalus treated with CSF drainage was conducted. Results Forty premature neonates were included. Serial lumbar puncture, ventriculosubgaleal shunt, and ventriculoperitoneal shunt were the treatments of choice in 25%, 37.5% and 37.5% of the cases, respectively. Conclusion Cerebrospinal fluid diversion should be tailored to each case with preference given to temporary CSF drainage in neonates with lower age and lower birth-weight, while the permanent ventriculoperitoneal shunt should be considered in healthier, higher birth-weight neonates born closer to term.

RESUMO Objetivo A literatura descreve várias opções de drenagem liquórica (DL) para alivio da hidrocefalia pós-hemorrágica (HPH) em neonatos prematuros; contudo, não existe um consenso sobre a melhor abordagem. O escopo deste estudo foi descrever uma série de casos de neonatos prematuros, portadores de HPH, verificando os resultados de diferentes técnicas utilizadas para DL. Métodos Revisão consecutiva dos prontuários de neonatos com diagnostico de HPH submetidos a DL. Resultados Quarenta recém-nascidos prematuros foram incluídos. A punção lombar seriada (PL), a derivação ventriculosubgaleal (VSG) e a derivação ventrículo peritoneal (VP) foram o tratamento escolhido em 25%, 37,5% e 37,5% dos casos, respectivamente. Conclusão As opções de DL devem ser avaliadas caso a caso, sendo dada preferência às drenagens temporária em prematuros com idade e peso mais baixos ao nascer, enquanto o shunt definitivo (derivação VP) pode ser considerado naqueles prematuros mais saudáveis, com idade e peso superiores.

Surgical Management of Syringomyelia Associated with Spinal Adhesive Arachnoiditis, a Late Complication of Tuberculous Meningitis: A Case Report / 대한신경손상학회지

Syringomyelia associated with tuberculous meningitis is an extremely rare condition. Only a few studies have reported clinical experience with syringomyelia as a late complication of tuberculous meningitis. Twenty-six years after a tuberculous meningitis episode, a 44-year-old man presented with progressively worsening spastic paresis of the lower limbs and impaired urinary function for 2 years. Radiological examination revealed syringomyelia extending from the level of C2 to T9 and arachnoiditis with atrophy of the spinal cord between C2 and T3. We performed laminectomy from C7 to T1, dissected the arachnoid adhesion and placed a syringo-pleural shunt via keyhole myelotomy. One year after the operation, his neurological condition improved. The postoperative control magnetic resonance imaging revealed the correctly located shunt and significantly diminished syringomyelia cavities. We aim to discuss the mechanism of syrinx formation following tuberculous meningitis and to share our surgical therapeutic experience with this rare disease entity.

Endoscopic Third Ventriculostomy: Success and Failure

Endoscopic third ventriculostomy (ETV) has now become an accepted mode of hydrocephalus treatment in children. Varying degrees of success for the procedure have been reported depending on the type and etiology of hydrocephalus, age of the patient and certain technical parameters. Review of these factors for predictability of success, complications and validation of success score is presented.

Neurogenic pulmonary edema due to ventriculo-atrial shunt dysfunction: a case report / Edema pulmonar neurogênico devido à disfunção da derivação ventrículo-atrial: relato de caso

ABSTRACT BACKGROUND AND OBJECTIVES: Pulmonary edema is caused by the accumulation of fluid within the air spaces and the interstitium of the lung. Neurogenic pulmonary edema is a clinical syndrome characterized by the acute onset of pulmonary edema following a significant central nervous system insult. It may be a less-recognized consequence of raised intracranial pressure due to obstructive hydrocephalus by blocked ventricular shunts. It usually appears within minutes to hours after the injury and has a high mortality rate if not recognized and treated appropriately. CASE REPORT: We report a patient with acute obstructive hydrocephalus due to ventriculo-atrial shunt dysfunction, proposed to urgent surgery for placement of external ventricular drainage, who presented with neurogenic pulmonary edema preoperatively. She was anesthetized and supportive treatment was instituted. At the end of the procedure the patient showed no clinical signs of respiratory distress, as prompt reduction in intracranial pressure facilitated the regression of the pulmonary edema. CONCLUSIONS: This report addresses the importance of recognition of neurogenic pulmonary edema as a possible perioperative complication resulting from an increase in intracranial pressure. If not recognized and treated appropriately, neurogenic pulmonary edema can lead to acute cardiopulmonary failure with global hypoperfusion and hypoxia. Therefore, awareness of and knowledge about the occurrence, clinical presentation and treatment are essential.

RESUMO JUSTIFICATIVA E OBJETIVOS: o edema pulmonar é causado pelo acúmulo de líquido nos alvéolos e no interstício pulmonar. Edema pulmonar neurogênico é uma síndrome clínica caracterizada por edema pulmonar de início agudo após um acometimento súbito do sistema nervoso central. Pode ser uma consequência menos reconhecida de pressão intracraniana aumentada por causa da hidrocefalia obstrutiva por derivações ventriculares bloqueadas. Geralmente aparece em minutos ou horas após o insulto e tem uma alta taxa de mortalidade, caso não seja identificado e tratado adequadamente. RELATO DE CASO: relatamos o caso de paciente com hidrocefalia obstrutiva aguda por causa da disfunção da derivação ventrículo-atrial, programado para cirurgia em caráter de urgência para a colocação de derivação ventricular externa, que apresentou edema pulmonar neurogênico no pré-operatório. A paciente foi anestesiada e o tratamento de manutenção instituído. No fim do procedimento, a paciente não apresentou quaisquer sinais de distúrbio respiratório, pois a redução rápida da pressão intracraniana facilitou a regressão do edema pulmonar. CONCLUSÕES: este relato aborda a importância da identificação de um edema pulmonar neurogênico como uma possível complicação no período perioperatório resultante de um aumento da pressão intracraniana. Quando não identificado e tratado adequadamente, o edema pulmonar neurogênico pode levar à insuficiência cardiorrespiratória aguda, com hipoperfusão global e hipóxia. Portanto, a conscientização e o conhecimento de sua ocorrência, apresentação clínica e seu tratamento são essenciais.

Shunt Overdrainage Caused by Displacement of the Pressure Control Cam after Pressure Adjustment / 대한신경손상학회지

Although the Codman-Hakim programmable valve is one of most popular shunt systems used in the clinical practice for the treatment of hydrocephalus, malfunctions related with this system have been also reported which lead to underdrainage or overdrainage of the cerebrospinal fluid. While obstruction of the ventricular catheter by tissue materials or hematoma and catheter disconnection are relatively common, the malfunction of the valve itself is rare. Herein, we report on a rare case of shunt overdrainage caused by displacement of the pressure control cam after pressure adjustment. A 57-year-old female, who underwent a ventriculoperitoneal shunt eight years ago, experienced aggravating symptoms of shunt overdrainage after pressure adjustment. Displacement of the pressure control cam was revealed on the X-ray, and a shunt revision was performed. The purpose of this report is to provide a working knowledge of the valve structure and to enhance the ability to interpret the valve setting on an X-ray for diagnosis of valve malfunction.

Experience of treatment for accumulation of extra-axil cerebrospinal fluid after skull surgery / 中南大学学报(医学版)

OBJECTIVE@#To explore the treatment and pathophysiology of extra-axil cerebrospinal fluid accumulation aft er skull surgery.@*METHODS@#The treatment of 46 cases of pineal regional tumor was retrospectively studied.@*RESULTS@#The CT showed that all patients had postoperative extra-axil cerebrospinal fluid accumulation in 6 hours after operation. 5 cases displayed symptomatic accumulation of extra-axil cerebrospinal fluid. 1 died 30 days aft er discharge, 4 performed S-P shunt and 3 of them switched to V-P shunt after S-P shunt failed.@*CONCLUSION@#Much more attention should be paid to postoperative accumulation of extra-axil cerebrospinal fluid. Both V-P and S-P are the effective strategies of therapy.

Clinical Experience of Infantile Posthemorrhagic Hydrocephalus Treated with Ventriculo-Peritoneal Shunt / 대한신경손상학회지

OBJECTIVE: Infantile posthemorrhagic hydrocephalus (IPHH) is the most common cause of infantile acquired hydrocephalus. We present and discuss our experience of treatment of six IPHH patients treated by a ventriculo-peritoneal (VP) shunt. METHODS: Six preterm infants treated by a VP shunt due to germinal matrix hemorrhage and hydrocephalus were included in our study. External ventricular drainage (EVD) was performed in patients with symptomatic ventricular dilatation, and a VP shunt was placed in the case of no improvement of the ventricular index despite several rounds of EVD. Radiographic findings and surgical outcomes were analyzed retrospectively. RESULTS: Four patients were male and two were female. Mean gestational age was 25 weeks and mean weight at birth was 868.3 g. One patient had a Papile grade II (16.7%) hemorrhage, three had a grade III (50%) hemorrhage, and two had a grade IV (33.3%) hemorrhage. EVD complications (one case of ventriculitis and one case of a ventricular abscess) occurred in two patients. VP shunt complications occurred in two patients (33.3%). Three cases had an isolated 4th ventricle; two of these cases had a VP shunt placed whereas the other case had a VP shunt placed in addition to aqueductoplasty using a neuroendoscope. At the last follow-up, three of the six patients had severe neurodevelopmental delay, two had mild neurodevelopmental delay, and one had normal development status. CONCLUSION: In our study, although it is difficult to present the significant result for management of IPHH, we think that varied efforts are required to treat IPHH patients.

Derivação ventriculoatrial percutânea – Nota técnica / Derivation percutaneous atrial ventricle - Technical Note

Descrição passo a passo de técnica de derivação ventriculoatrial utilizando punção cervical percutâneapor técnica de Seldinger. O objetivo é demonstrar e difundir entre os neurocirurgiões brasileiros umaforma alternativa segura, rápida e e'caz de introdução e instalação de cateter venoso até o átrio direito,sem necessidade de dissecção venosa convencional. São vantagens a redução do tempo cirúrgico eo melhor resultado cosmético, sem aumento signi'cativo do custo...

Step-by-step technique using ventriculoatrial shunt through percutaneous cervical puncture by Seldinger’s technique. The goal is to demonstrate and spread among Brazilian neurosurgeons an alternative safe, fast and effective way to introduce and install venous catheter up to the right atrium without the need for conventional venous dissection. Advantages of the method are shorter surgical time and better cosmetic results, without significant increase in the cost...

Infecção relacionada à derivação ventricular externa em hospital de neurocirurgia / Infección relacionada con derivación ventricular externa en hospital de neurocirugía / Infection related to the external ventricular shunt in a neurosurgery hospital

Objective: Identify the factors co-responsible for infection related to external ventricular shunt (EVS). Method: This is a retrospective study with quantitative data analysis developed at the Medical Archive Service of a public hospital which is a reference in neurosurgery in Pernambuco, Brazil. The sample consisted of 140 patients who underwent the insertion of external ventricular shunt. Data were collected through a semi-structured questionnaire and analyzed using the software Statistical Package for the Social Sciences (SPSS), version 13.0. Results: Predominance of males (39.7%); age between 20 and 39 years (52%); length of hospital stay over 60 days (72.7%); multiple EVS placed (100%); length of EVS use over 30 days (96.2%). Conclusion: Statistical significance for the factors: prolonged length of hospital stay; number of EVS placed; length of EVS use; and the development of infection. Nursing actions are emerging and they're aimed at ensuring patient safety in the hospital environment

Objetivo: Identificar os fatores corresponsáveis de infecção relacionada à derivação ventricular externa (DVE). Método: Trata-se de estudo retrospectivo com análise quantitativa dos dados desenvolvido no Serviço de Arquivo Médico de um hospital público que é referência em neurocirurgia em Pernambuco. A amostra foi constituída por 140 pacientes submetidos a inserção de derivação ventricular externa. Os dados foram coletados por meio de um questionário semiestruturado e analisados com o programa Statistical Package for the Social Sciences (SPSS), versão 13.0. Resultados: Predominância do sexo masculino (39,7%); idade entre 20 e 39 anos (52%); tempo de internamento acima de 60 dias (72,7%); múltiplas DVEs colocadas (100%); tempo de uso da DVE acima de 30 dias (96,2%). Conclusão: Significância estatística para os fatores: tempo de internação prolongado; número de DVEs colocadas; tempo de uso da DVE; e o desenvolvimento de infecção. As ações de enfermagem são emergentes e visam a garantir a segurança do paciente no ambiente hospitalar

Objetivo: Identificar los factores co-responsables de infección relacionada con la derivación ventricular externa (DVE). Método: Esto es un estudio retrospectivo con análisis cuantitativo de datos desarrollado en el Servicio de Archivo Médico de un hospital público que es referencia en neurocirugía en Pernambuco, Brasil. La muestra consistió de 140 pacientes que se sometieron a inserción de una derivación ventricular externa. Los datos fueron recogidos por medio de un cuestionario semi-estructurado y analizados con el programa Statistical Package for the Social Sciences (SPSS), versión 13.0. Resultados: Predominio del sexo masculino (39,7%); edad entre 20 y 39 años (52%); tiempo de hospitalización mayor que 60 días (72,7%); múltiples DVEs colocadas (100%); tiempo de utilización de la DVE mayor que 30 días (96,2%). Conclusión: Significancia estadística para los factores: tiempo prolongado de hospitalización; número de DVEs colocadas; tiempo de utilización de la DVE; y el desarrollo de infección. Las acciones de enfermería están surgiendo y tienen el fin de garantizar la seguridad del paciente en el entorno hospitalario

Programmable valve represents an efficient and safe tool in the treatment of idiopathic normal-pressure hydrocephalus patients / Válvula de pressão programável representa uma ferramenta eficaz e segura no tratamento de pacientes com hidrocefalia de pressão normal idiopática

Idiopathic normal pressure hydrocephalus (iNPH) is characterized by gait disturbance, dementia and /or urinary incontinence, dilation of the ventricular system and normal opening cerebrospinal fluid pressure. Shunt surgery is the standard treatment of iNHP. Diversions with programmable valves are recommended, once drainage pressure can be changed. However, well-defined protocols still lack guiding the steps to attain proper pressure for each patient. Methods: In our study, we reported the experience of shunting 24 patients with iNPH using Strata® (Medtronic) valve, following a protocol based on a positive Tap Test. Results: We observed clinical improvement in 20 patients and stability/worsening in 4 patients. Complications occurred in five patients, including one death. The results display improvement, and complications occurred at a lower rate than reported in other studies. Conclusions: The Strata® valve used in the proposed protocol represents an efficient and safe tool in the treatment of iNPH. .

A hidrocefalia de pressão normal idiopática (iNPH) é caracterizada por alterações na marcha, demência e/ou incontinência urinária, além de dilatação dos ventrículos com pressão normal de abertura no líquido cefalorraquidiano. A cirurgia de derivação é o principal tratamento da iNHP. São recomendadas válvulas programáveis, pois a pressão de drenagem pode ser alterada. Embora as válvulas programáveis sejam utilizadas, não há protocolos para atingir a pressão adequada de cada paciente. Métodos: Neste estudo, relatamos nossa experiência com 24 pacientes com iNPH que usaram a válvula Strata® (Medtronic), seguindo protocolo baseado em um Tap test positivo. Resultados: Observamos melhora em 20 pacientes e estabilidade ou piora em 4. Ocorreram complicações em cinco pacientes, tendo um deles falecido. Houve importante melhora clínica, e as complicações ocorreram em taxa mais baixa do que as relatadas em outros estudos. Conclusões: A válvula Strata® utilizada no protocolo proposto representa uma ferramenta eficiente e segura no tratamento de iNPH. .

Ventriculosubgaleal shunt in the management of obstructive hydrocephalus caused by cerebellar infarction

Cerebellar infarction is relatively uncommon. Small infarctions only cause cerebellar manifestations e.g. ataxia and nystagmus and are treated medically. Large cerebellar infarctions, however, can be life threatening. It cause brain stem compression and can obstruct the cerebrospinal fluid pathway causing obstructive hydrocephalus. It has to be treated promptly and may require besides the medical treatment surgical intervention as well. This is mainly in the form of posterior fossa decompression. In this study, we studied the beneficial effect of inserting a temporary ventriculoperitoneal shunt to relieve the supratentorial hydrocephalus in addition to posterior fossa decompression on the morbidity and mortality of patients in comparison to posterior fossa decompression alone. The aim of this study was to evaluate the role of ventriculosubgaleal shunt in cerebellar infarction causing supratentorial ventricular dilatation. This was a retrospective study that included ten patients having extensive cerebellar infarction causing spratentorial hydrocephalus. They were divided into two groups, group [1] was submitted to posterior fossa decompression alone and group [2] was submitted to posterior fossa decompression in addition to temporary ventriculosubgaleal shunt insertion. Group [2] which had posterior fossa decompression in addition to temporary. ventriculosubgaleal shunt hadmuch better results than group [1] which had only posterior fossa decompression. Group [2] had a lower morbidity and mortality and a shorter hospital stay than group [1]. Temporary insertion of ventriculosubgaleal shunt is recommended in patients having extensive cerebellar infarction causing supratentorial hydrocephalus in addition to posterior fossa decompression. It results in a lower morbidity and mortality and a shorter hospital stay

Therapeutic effect of Ommaya reservoir implantation on hydrocephalus in premature infants following intraventricular hemorrhage and factors associted with the therapeutic effect / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To observe the therapeutic effect of Ommaya reservoir implantation on hydrocephalus in premature infants following intraventricular hemorrhage (IVH) and to investigate factors influencing the therapeutic effect.</p><p><b>METHODS</b>An ambispective cohort study was conducted on the clinical and follow-up data of 20 premature infants (gestational age <32 weeks, birth weight <1500 g) who received Ommaya reservoir implantation because of hydrocephalus following IVH. The therapeutic effect of Ommaya reservoir implantation was observed. These patients were divided into cure and treatment failure groups according to their treatment outcomes. The factors influencing therapeutic effects were investigated by univariate analysis.</p><p><b>RESULTS</b>Hydrocephalus was relieved significantly at 30 days after Ommaya reservoir implantation. However, some patients showed significantly decreased therapeutic effects since 3 months after operation: during 3-6 months after operation, 7 cases underwent ventriculoperitoneal shunt, 4 cases discontinued treatment because of economic reasons, and 1 case underwent endoscopic third ventriculostomy due to scalp hematoma with skin necrosis. The ventricles of the remaining 8 cases returned to normal size at 12-18 months after operation. As for postoperative complications, secondary IVH was seen in 8 cases, intracranial infection in 2 cases, and scalp hematoma with skin necrosis in 1 case. The univariate analysis revealed significant differences in gestational age, birth weight and duration of hydrocephalus before Ommaya reservoir implantation between the cure and the treatment failure groups (P<0.05).</p><p><b>CONCLUSIONS</b>Ommaya reservoir implantation has a remarkable short-term therapeutic effect on hydrocephalus in premature infants following IVH, but later the effect decreases in some patients. Low gestational age, low birth weight and long duration of hydrocephalus may be the main factors influencing therapeutic effects of Ommaya reservoir implantation.</p>