UCalgary researchers show brain shunts significantly benefit older adults with hydrocephalus
Peer-Reviewed Publication
Updates every hour. Last Updated: 21-Jan-2026 02:11 ET (21-Jan-2026 07:11 GMT/UTC)
A new international study led by researchers in Canada, Sweden and the U.S., has provided definitive proof that shunt surgery restores mobility and safety in older adults with idiopathic Normal Pressure Hydrocephalus (iNPH). Dr. Mark Hamilton, MD, Director of the Calgary Adult Hydrocephalus Program at at the University of Calgary says the groundbreaking double-blind, randomized, placebo-controlled trial, demonstrates that surgical treatment with a shunt (a small tube used to divert cerebrospinal fluid from the brain) produced significant improvements in walking speed and balance after just three months. The benefit to those in the group where the shunt was activated and functioning was so improved that the trial was halted early due to its efficacy. Findings are published in The New England Journal of Medicine.