A knot in the catheter--an unusual cause of ventriculo-peritoneal shunt blockage

Acta neurochirurgica
I ChopraD Peterson

Abstract

A 25-year-old woman, who was 25 weeks pregnant, underwent insertion of a VP shunt for hydrocephalus, secondary to a bithalamic glioma. Two months later, she represented with symptoms of raised intracranial pressure and MR scan revealed increased ventricular size. On exploration of the shunt, manometry with saline confirmed blockage of the catheter distal to the valve. On re-opening the abdominal wound, the peritoneal catheter was found to be knotted, 2 cm from the end. This segment of the catheter was replaced, with resolution of symptoms, post-operatively. The present case illustrates that a knot in the peritoneal catheter is an extremely rare cause of shunt malfunction. Possible mechanisms underlying it are discussed.

Citations

Jan 5, 2008·Surgical Endoscopy·V NfonsamM Luciano
Mar 21, 2008·Journal of Neurosurgery. Pediatrics·Behzad Eftekhar, Andrew Hunn
Oct 11, 2013·Case Reports in Neurological Medicine·Anwar Ul-HaqEssam Al Shail
Dec 19, 2012·Journal of Pediatric Neurosciences·Sandeep Mohindra, Manish Sharma
Sep 10, 2014·The Spine Journal : Official Journal of the North American Spine Society·Lawrence P LaiMichael T Wingate
Jan 15, 2017·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Idrees SherAndrew Hunn
May 28, 2011·British Journal of Neurosurgery·A C Amato-WatkinsP Leach
Jan 20, 2021·BMJ Case Reports·Orlando De Jesus, Christian Rios-Vicil

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