This episode delves into predicting dementia severity changes following shunt surgery for idiopathic normal-pressure hydrocephalus (iNPH). Based on an abstract from Clinical Neurology and Neurosurgery (2026), we explore the role of the tap test and cognitive assessments in identifying patients likely to benefit from surgical intervention. The study aimed to pinpoint the most effective assessment scales and timing for the tap test to forecast post-operative dementia improvement. Understanding these predictive factors is crucial for optimizing patient selection and surgical outcomes in iNPH management. This discussion provides valuable insights for clinicians managing patients with iNPH. This content is for informational purposes only and does not constitute medical advice.