Konstantin Brawanski, Ondra Petr, Christian Preuss Hernandez, Nikolaus Kögl, Claudius Thomé, Elke R Gizewski, Hannes Gruber, Michael Verius, Leonhard Gruber, Daniel Putzer
The objective of this pilot study was to assess the reliability of superb microvascular ultrasound (SMI) for the measurement of the cerebrospinal fluid (CSF) flow within VPS systems as an indirect sign for shunt dysfunction. Asymptomatic hydrocephalus patients, with a VPS system implanted between 2017 and 2021, were prospectively enrolled in the study. Using SMI, the CSF flow within the proximal and distal catheters were analysed. Before and after pumping the shunt reservoir, intraabdominal free fluid, optical nerve sheath diameter (ONSD), and papilla diameter (PD) were evaluated and correlated with the amount of valve activation...
September 2, 2024: Neurosurgical Review