IRCT2015052622418N1 IRCT 2015-06-26 Vice chancellor for research of, mazandaran University of Medical Sciences Prevention of delirium after open heart surgery - Evaluation of the effects of preventive nursing measures on delirium incidence for patients with open heart surgery 2015-06-05 anticipated 72 Complete https://irct.ir/trial/19338 interventional Randomization: Not randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention, Other design features: -. 2 Delirium. Intervention 1: After sampling in the control group, preventive measures are done by researcher in the intervention group from the first day after surgery till the end of the fifth day such as: Installation of clock and calendar at the room, informing time, place and the last event to the patient three times a day, using proper lighting during the day and night, providing glasses, hearing aids and dentures to the patients who already used these devices, Prevention from dehydration (drinking enough liquids in case of dehydration and no contraindications), Encouraging the patient to move out of bed and helping him/her to do personal activities in order to maintain his independence, Preparations for a proper sleep (not using coffee, tea and dairy products before sleep time, enough exercise during the day, Reducing or eliminating unwanted extra noise around the bed and gentle massage on the back of the patient), preventing constipation (enough drinking, proper food diet with enough fiber and exercise during the day) not using physical limitations if possible, using local languages in the care of patients with diverse language and culture, using replaced oxygen to keep content of arterial oxygen above 95% and regular scheduled visit of the family and friends twice a day, each time for 30 minutes. The role of family and close friends at the patient bedside: (1) informing the patient about the place, time and recent events, providing the patient's favorite music or radio program or provide a cassette that recorded the voices of family members) 2( present the familiar objects in the room by their patients (photos, books, newspapers, pillows or soft pillows). Intervention 2: The researcher selects control group patients among all eligible patients who participate in this study. The control group received the usual nursing care and haloperidol injection.