Search results for "Hydrocephalu"

Clinical and ultrastructural observations of maturing human frontal cortex. Part I (Biopsy material of hydrocephalic infants).

1988

Three of 30 human cerebral cortex biopsies from infants treated for hydrocephalus by shunt operation are described. The descriptions include an account of their case history, the clinical methods, and the operational procedures. The biopsy specimens were studied in semithin and ultrathin sections. Attention is drawn to normal synapse formation but also to neuronal degenerative changes due to hydrocephalus.

A nonlinear biomechanical model for evaluation of cerebrospinal fluid shunt systems.

1994

In view of complications arising from physical properties of cerebrospinal fluid shunts, a biomechanical model of hydrocephalus was set up to study in vivo parameters that may influence their function. These include: intracranial pressure, compliance and pulses, intrathoracic, intra-abdominal, and subcutaneous pressures, and the effects of siphonage and repeated valve flushing. Each of these factors was studied separately upon shunt implantation in the model. Results of testing of a sample low-pressure valve with antisiphon device conformed with consumer information in regard to valve opening pressure and pressure flow measurements. No customer information, however, was supplied concerning …

Primary myelomeningocele closure and consequences

2002

Myelomeningocele, the most frequently occurring open neural tube defect, requires lifelong care of the patient by medical professionals and by relatives. A basic understanding of the neurosurgical measures that have to be taken in the newborn, the infant, the child and the adult is important also for physicians of other disciplines involved in the treatment of patients with myelomeningocele.The most recent topic broadly discussed in this context is the role of foetal neurosurgery for closure of the neural tube defect. There is ongoing debate as to whether the beneficial postnatal effects of a prenatal operation in the unborn foetus outweighs the possible complications for the mother as well…

Stellenwert von Computertomographie und Magnetresonanztomographie in der psychiatrischen Diagnostik

1997

This paper evaluates the role of computed tomography (CT) and magnetic resonance imaging (MRI) in the diagnosis of psychiatric disorders according to the "International Classification of Diseases" (ICD-10). Indications for CT/MRI can be derived from ICD-10 for the identification or exclusion of defined cerebral lesions resp. for the etiology in organic disorders. Due to the lack of specific morphological findings, CT/MRI do not contribute to the classification of all other diagnoses. CT/ MRI can only exclude causal organic factors. However, ICD-10 provides only few guidelines for ruling out cerebral pathology (e.g. tumors in bulimic anorexia). Therefore, recommendations for routine CT/MRI-i…

A survey on current practice in the neurosurgical management of preterm infants with posthemorrhagic hydrocephalus in Germany.

2012

Background and Study Aims  Different approaches to the management of preterm infants with posthemorrhagic hydrocephalus (PHH) are described in the literature. Likewise, neurosurgical and pediatric surgical departments in German hospitals use different methods to treat these patients. The aim of this study was therefore to assess the current situation regarding the management of PHH, which is a first and essential step toward the development of standards of practice. Patients and Methods  In the second half of 2009, we sent standardized questionnaires to 139 neurosurgical departments (number of returned questionnaires: 98) and 73 pediatric surgical departments (returned questionnaires: 62) t…

Letter: Cerebrospinal Fluid Shunting Improves Long-Term Quality of Life in Idiopathic Normal Pressure Hydrocephalus.

2020

Diagnosis, treatment, and analysis of long-term outcomes in idiopathic normal-pressure hydrocephalus

2007

To the Editor:We read with interest the article by McGirt et al. (9) entitled“Diagnosis, Treatment, and Analysis of Long-term Outcomes inIdiopathic Normal Pressure Hydrocephalus.” The authors con-clude that gait impairment is the primary symptom that inde-pendently predicted improvement after shunting. The studyincluded 132 patients, 129 (98%) of whom had gait impairmentas a feature. We would like to comment on this particular selec-tion criterion, as well as improvements in the Mini Mental StateExamination (MMSE) as the sole measure of postoperative cog-nitive improvement.One of the inclusion criteria for this study was presentationwith two or more features of the classic triad. Thus, the …

Peripheral facial palsy following ventriculoperitoneal shunt. The lesson we have learned

2018

The most frequent complications after shunt surgery are infective and obstructive. Other types are less common, and eventually occur due to technical errors during brain ventricular puncture, opening the intraperitoneal cavity or the tunnelling of the catheter between the two points. Although rare, there are well-reported complications related to the poor positioning of the distal catheter, with perforation of organs and tissues.We report a very rare case of a male patient with normal pressure hydrocephalus submitted to ventriculoperitoneal shunt. During tunnelling of the shunt stylet, a peripheral facial palsy due to injury to the extra cranial segment of the facial nerve occurred.To the b…

Dolichoectasia of the vertebrobasilar complex causing neural compression

2014

Dear Editor, We have read with great interest the paper of Yuh et al.[4] reporting a case of symptomatic hydrocephalus due to vertebrobasilar dolichoectasia (VBD) compressing the brainstem. Ectatic or pathologically enlarged vertebrobasilar arteries have been reported with increasing frequency and associated with several clinical syndromes. These include an assortment of cranial nerve syndromes, transient or permanent motor deficit, cerebellar dysfunction, central sleep apnea, ischemic stroke, hypertension, and hydrocephalus as reported in the paper by Yuh et al.[4] Others and we have also described pyramidal tract signs and cranial nerve nucleus dysfunction caused by vascular compression o…

Análisis sistemático y cuantitativo del registro de presión intracraneal en el niño y adulto joven

2015

La hidrocefalia y trastornos de la circulación del líquido cefalorraquídeo suponen una importante fuente de discapacidad y carga asistencial en el campo de la neurocirugía en general y en la población pediátrica en particular. Su tratamiento consiste principalmente en la implantación de tratamientos derivativos del líquido cefalorraquídeo, los cuales han sido el procedimiento que más vidas y más función neurológica han preservado en el último siglo en esta especialidad. El diagnóstico de los trastornos de líquido suele ser evidente basándose en datos clínicos y radiológicos. Sin embargo, en ocasiones se presentan de manera más insidiosa y su diagnóstico requiere de pruebas invasivas que per…