Impact of Dexmedetomidine on Long-term Outcomes After Noncardiac Surgery in Elderly: 3-Year Follow-up of a Randomized Controlled Trial.

Objectives:The aim was to compare the long-term outcomes of low-dose dexmedetomidine versus placebo in a randomized controlled trial (ChiCTR-TRC-10000802).Background:Low-dose dexmedetomidine infusion decreased delirium occurrence within 1 week after surgery in elderly admitted to the intensive care