VPS Position and Risk of Malfunction

VPS malfunction can be caused by obstruction, valve infection, cathether disconnection or most commonly, malpositioning of the ventricular / peritoneal catheter.

A recent study correlated shunt position with the risk of malfunction, and determined that catheter positioned in sites A (Foramen of Monroe), B (third ventricle) and C (body of lateral ventricle) resulted in lower risks of shunt malfunction. Bad positions include sites D (septum pellucidum) and E (walls of lateral ventricle).

Reference:

Dobran, Mauro, Davide Nasi, Fabrizio Mancini, Maurizio Gladi, Gabriele Polonara, Alessandra Marini, Simona Lattanzi, and Massimo Scerrati. 2018. “Relationship Between The Location Of The Ventricular Catheter Tip And The Ventriculoperitoneal Shunt Malfunction”. Clinical Neurology And Neurosurgery 175: 50-53. doi:10.1016/j.clineuro.2018.10.006.

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