Fig. 3.

1-year outcome of patients with diagnosed hydrocephalus of multiple aetiologies undergoing CSF infusion studies for shunt function assessment in vivo. *1: Not improved after revision: One patient came back with new blockage confirmed with infusion study, but improved after the second revision. One had a wound breakdown with CSF leak and improved after system and wound revision. Another patient developed significant scarring with cheloids that required revision. Three more patients remained quite unwell, with long-term ongoing investigations between neurology and neurosurgery. Two more were discussed in MDT meeting due to some osseous and venous lesions in further imaging. One deteriorated neurologically but the deterioration was most likely due to a spinal cord syrinx, but further follow-up is not available yet. A NPH patient with complicated postshunting history never recovered and was placed in a nursing home. Finally, there was a very complex patient with very prolonged hospital stay that required multiple revisions and eventually died after years of intermittent, very long hospitalisations and very heavy problems related to her hydrocephalus