• Nicola Gorgoglione, Elena Fazzari, Concetta Alafaci, Francesca Vitulli, Rossella Zaccaria, Filippo F Angileri, Antonino Germanò, and Felice Esposito.
• Division of Neurosurgery, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, Messina, Italy.
• World Neurosurg. 2021 Feb 1; 146: 287-291.

BackgroundWe present an unusual but possible complication after ETV for the treatment of acute hydrocephalus due to malfunction of a previously implanted V-P shunt.Case DescriptionA 12-year-old male patient was urgently operated upon by means of an endoscopic third-ventriculostomy and the positioning of a temporary external ventricular catheter because of the malfunction of a previously implanted V-P shunt; immediately after the operation, the tip of the external catheter caused an obstruction of the ostomy, which was resolved with the withdrawn of catheter for circa 1 cm, left closed and ultimately removed after 4 days. The patient did not present any further symptom and remained shunt-free at the last 2-year follow-up visit.ConclusionsOne should consider such occurrence in cases of early ETV failure when a ventricular catheter is left in situ, even though temporarily.Copyright © 2020 Elsevier Inc. All rights reserved.

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