In this interview led by Eileen Liu, Charles Matouk shares why normal pressure hydrocephalus (NPH) is more common than we think, and why so many patients remain undiagnosed. He explains how the eShunt could redefine treatment by offering a fully endovascular alternative to conventional shunting, especially for older patients who need minimally invasive solutions. As co‑investigator of the STRIDE Trial, Charles Matouk gives an inside look at what could become a major shift in clinical practice for NPH management.