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Objective:   The objective of this study was to study the pharmacological management of delirium in elderly hospitalized patients in acute geriatric medical wards.Method:   We conducted a one-year retrospective cross-sectional study in patients 65 years of age or older who were admitted to an acute geriatric unit care at a teaching hospital with a delirium diagnosis.Results:   A total of 133 subjects were included in the study. Delirium was prevalent in 78% of patients. The average length of delirium was 13 days. Antipsychotics were prescribed to 74% of patients with delirium. Patients with hyperactive, mixed and hypoactive delirium received antipsychotics regularly in a proportion of 68%, 54%, and 34% respectively. The length of antipsychotic prescription was of 11 days. Risperidone was the most commonly prescribed agent given on a regular basis while haloperidol was chosen for the as required prescriptions. Fifty-five percent of demented patients received a daily prescription of antipsychotics compared to 46% in the non-demented population. A shorter length of delirium episodes in subjects with acetylcholinesterase inhibitors was also observed. A higher mortality rate was observed in the group of subjects receiving benzodiazepine during the delirium episode.Conclusion:   This study shows that antipsychotic treatment is widely, but not systematically prescribed in demented and non-demented patients in all types of delirium including hypoactive. Efforts should be made to increase appropriate antipsychotic prescription in this vulnerable population.

Antipsychotic prescription patterns in the management of delirium symptoms in hospitalized elderly patients