Delayed endoscopic intraventricular hemorrhage (IVH) removal and endoscopic third ventriculostomy may not prevent consecutive communicating hydrocephalus if IVH removal was insufficient.

Object: The aim of this study was to investigate whether delayed endoscopic treatment of intraventricular hemorrhage (IVH) can prevent consecutive communicating hydrocephalus.

Methods: A retrospective series of 9 patients with IVH caused by intracerebral hemorrhage (ICH) who were treated with external ventricular drainage (EVD) or endoscopic IVH removal and endoscopic third ventriculostomy (ETV) was studied in our institute. Five of these patients who had previously been treated a year before in our institute with the installation of a flexible endoscope, were treated with EVD alone on admission.

Unsuccessful third ventriculostomy for occlusive hydrocephalus.

For non-communicating hydrocephalus, neuroendoscopic third ventriculostomy has become a major choice. But sometimes, the procedure results in failure. Typically, impairment of a distal CSF absorption, a preexisting arachnoid membrane just below the fenestrated site and a glial scarring of fenestrated site were pointed out as a factors of failure.

Application of endoscopy for a midbrain tumor.

Objective And Importance: It has been difficult to obtain a biopsy of a midbrain lesion. In addition, proper cerebrospinal fluid diversion should be secured because progressing tumor in the midbrain causes obstructive hydrocephalus. We report on the superiority of flexible neuroendoscopy to treat progressing midbrain tumor.