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  • Title: Endoscopic third ventriculostomy for obstructive hydrocephalus due to intracranial hemorrhage with intraventricular extension.
    Author: Oertel JM, Mondorf Y, Baldauf J, Schroeder HW, Gaab MR.
    Journal: J Neurosurg; 2009 Dec; 111(6):1119-26. PubMed ID: 19425883.
    Abstract:
    Object Endoscopic third ventriculostomy (ETV) is well accepted for obstructive hydrocephalus of various etiologies. Nevertheless, it is seldom considered in intracranial hemorrhage even in cases involving obstruction of the CSF circulation. Methods Between May 1993 and April 2008, 34 endoscopic procedures were performed for hemorrhage-related obstructive hydrocephalus with an intraventricular component. All patients were prospectively followed up. Special attention was paid to presurgical clinical status, type of hemorrhage, type of surgery, postsurgical clinical status, postsurgical ventricular size, and necessity of ventriculoperitoneal shunt implantation. Results An ETV was performed for treatment of obstructive hydrocephalus due to intracranial hemorrhage in 34 patients (15 male, 19 female; mean age 60.8 years [range 3 months-83 years]). Hydrocephalus was caused by 17 cerebellar, 6 thalamic, 5 intraventricular, 3 basal ganglia, 2 subarachnoid, and 1 pontine hemorrhage. Thirty-three patients (97.1%) presented with impaired consciousness. Intraventricular blood was present in all cases. In 16 cases (47.1%), blood clots had to be evacuated to achieve access to the third ventricle floor. The mean operation time was 58.2 minutes (range 25-120 minutes). Three complications occurred (rate of 8.8%) with 2 being asymptomatic (5.9%) and 1 being transient (2.9%). There was no procedure-related permanent morbidity, and no procedure-related mortality. After surgery, there was clinical improvement in 17 cases (50.0%) and radiological evidence of improvement in 22 cases (64.7%). Two patients required postoperative ventriculoperitoneal shunting (5.9%). Seven patients died of hemorrhage while in the hospital (20.6%), and another 4 died during follow-up (11.8%). Fifteen patients (44.1%) showed a persistent clinical improvement at the final follow-up (mean 12.2 months after surgery). Conclusions Endoscopic third ventriculostomy represents a safe treatment option in intraventricular hemorrhage-related obstructive hydrocephalus yielding similar results as an external drainage but with less risk of infection and a very low subsequent shunt placement rate. In cases with a predominant obstructive component, ETV should be considered in hydrocephalus due to intracerebral hemorrhage. However, performing an ETV with a blurred field of vision and distorted ventricular anatomy is a challenge for any endoscopic neurosurgeon and should be reserved for experienced neuroendoscopists.
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