Traumatic subacute subdural effusion in the posterior fossa associated with secondary acute hydrocephalus in a neonate. Case report.

The authors report on a neonatal patient with traumatic subacute subdural effusion in the posterior fossa associated with secondary acute hydrocephalus. The infant fell from his mother's hand onto the floor, injuring his left parietal region. Computed tomography (CT) scans of the patient's head revealed a linear fracture of the left parietal bone, a small contusion in the right temporal lobe, and a small subdural hematoma in the right posterior fossa with thin subdural effusion.

Ventricular anatomy of hydrocephalus associated with myeloschisis and endoscopic third ventriculostomy.

Objects: To characterize the anatomical features of the ventricular regions in patients with myeloschisis and related to successful performance of endoscopic third ventriculostomy (ETV).

Methods: Radiological and endoscopic findings of 21 myeloschisis patients were retrospectively reviewed. Radiological features that could interfere with endoscopic procedures were (1) a huge massa intermedia (12/19), (2) sloping of the third ventricular floor (3/10), (3) narrow anteroposterior length of the third ventricular floor (2/10), and (4) narrow prepontine cistern (8/21).

Current status of neuroendoscopic surgery in Japan and discussion on the training system.

Objectives: The objectives of this study was to investigate the current status of neuroendoscopic surgery in Japan and to discuss the issue disclosed by the survey.

Methods: We delivered questionnaires about neuroendoscopic surgeries to 1,237 of Japan Neurosurgical Society certified training institutions.

Results: Of these institutions, 592 (47.

Proposal of "evolution theory in cerebrospinal fluid dynamics" and minor pathway hydrocephalus in developing immature brain.

Background: The specificity of cerebrospinal fluid (CSF) dynamics in the immature brain still remains unknown. In our data previously published, the transependymal intraparenchymal CSF pathway (the minor pathway) plays a significant role in various degrees in the alternative CSF passage. Now, there is a growing consensus in the age differences in the outcome of neuroendoscopic ventriculostomy in treatment of non-communicating types of hydrocephalus.

Indication for and surgical outcomes of the distraction method in various types of craniosynostosis. Advantages, disadvantages, and current concepts for surgical strategy in the treatment of craniosynostosis.

Background: Various surgical techniques for the treatment of craniosynostosis using distraction devices have been described over the last few years and we have applied these procedures in seven patients with varying types of craniosynostosis. The aim of this report is to clarify the advantages and disadvantages of these surgical methods and to discuss current concepts for the surgical strategy in the treatment of craniosynostosis.

Material And Methods: From January 2001 to March 2003, 25 patients with craniosynostosis were examined.