• Tamer Zakhary, Islam Ahmed, Ibrahim Luttfi, and Mina Montasser.
• Critical Care Medicine Department, Faculty of Medicine, Alexandria University, Alexandria, 21111, Egypt. tamer.zakhary78@alexmed.edu.eg.
• Neurocrit Care. 2024 Oct 1; 41 (2): 550557550-557.

BackgroundIn the population of patients in the intensive care unit (ICU), most studies compared the use of atypical antipsychotics, such as quetiapine, with the use of traditional haloperidol in patients with delirium of various forms and etiologies. The role of such agents in patients with hyperactive delirium is not fully understood. This study compares the effectiveness of quetiapine with haloperidol in treating the hyperactive form of delirium in terms of their effects on the Delirium Rating Scale-Revised-98 (DRS-R-98), length of stay in the ICU, and mortality in critically ill patients.MethodsOne hundred adult patients diagnosed with hyperactive delirium were randomly assigned to receive either oral quetiapine (25-50 mg/day) or haloperidol (1-2 mg/day). The response, defined as "a DRS-R-98 severity score reduction from baseline of 50% or more" and a DRS-R-98 severity score of 12 or less without relapse, was the primary outcome.ResultsThe mean age of all patients was 68 ± 6 years. The study population's overall response rate was 92%. Response rates for the two groups were remarkably equal (p = 0.609). Secondary outcomes were comparable in both groups, such as ICU mortality (p = 0.496), in-hospital mortality (p = 0.321), in-hospital stay (p = 0.310), and the need for mechanical ventilation (p > 0.99). But the quetiapine group showed a statistically reduced mean ICU stay (10.1 ± 2.0 vs. 11.7 ± 2.6 days, p = 0.018) and increased sleeping hours per night (p = 0.001).ConclusionsQuetiapine may be equally as effective as haloperidol in treating the symptoms of hyperactive delirium in critically ill patients, with no mortality benefit.© 2024. The Author(s).

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