Haloperidol prophylaxis decreases delirium incidence in elderly patients after noncardiac surgery: a randomized controlled trial*.

Objectives:To evaluate the efficacy and safety of short-term low-dose intravenous haloperidol for delirium prevention in critically ill elderly patients after noncardiac surgery.Design:Prospective, randomized, double-blind, and placebo-controlled trial in two centers.Setting:Intensive care units of