RESUMEN
BACKGROUND: Endoscopic third ventriculostomy has been shown to be efficient for the treatment of non-communicating hydrocephalus. However, it is not recommended as the first option in the treatment of obstructive hydrocephalus in children under 3 months of age, because the success rate is less than 35%. METHODS: We reviewed all the cases of triventricular hydrocephalus treated between 2007 and 2011 in patients under 1 month of age in the case of normal term births or under 1 month of corrected age, in the case of pre-term births. The first treatment option was endoscopic fenestration and a restriction of cranial volume during the two months after surgery. RESULTS: Ten patients under 1 month of age underwent 13 ventriculostomies for non-communicating hydrocephalus of varying etiology (suprasellar arachnoid cyst (3), stenosis of the Sylvian aqueduct (2), post-infectious meningitis (3), and intrauterine bleeding (2)). Three required surgical endoscopic revision at 3, 4, and 5 months, respectively, after the initial surgery due to progressive ventricular enlargement. One of these three patients presented with Klebsiella pneumoniae ventriculitis as a complication after the second endoscopy. After a mean follow-up of 32 months, none has required a shunt. CONCLUSIONS: In our limited experience in triventricular hydrocephalus in patients under 1 month, the third ventriculostomy technique may be a better option than the shunt in selected cases.