Impact of an Antipsychotic Discontinuation Bundle During Transitions of Care in Critically Ill Patients

Abstract

Delirium affects a large proportion of patients admitted to the intensive care unit (ICU) and is associated with increased morbidity and mortality. Antipsychotics have become frequently used agents for the treatment of delirium; however, they are often continued at transitions of care. This has potential negative short- and long-term health consequences that are preventable. We investigated the antipsychotic tapering bundle's impact on the rate of antipsychotic continuation at transitions from the medical intensive care unit (MICU). This was a preretrospective and postretrospective chart review that included adult patients in the MICU initiated on antipsychotic therapy for ICU delirium. A bundled multidisciplinary education program and antipsychotic discontinuation algorithm were implemented in the MICU to provide recommendations for safe and effective use of antipsychotics for ICU delirium and minimize continuation of therapy at transitions of care. Rates of antipsychotic continuation at transition from the MICU were compared between the preintervention and postintervention groups with the χ2 test. A total of 140 patients in the prebundle group and 141 patients in the postbundle group were enrolled. Overall, baseline characteristics were similar. After implementation of the discontinuation bundle, antipsychotic continuation at MICU discharge decreased (27.9% in the prebundle group vs 17.7% in the postbundle group; P < .05). In the multivariate analysis, patients were less likely to be continued on antipsychotic therapy at MICU discharge after implementation of the bundle (odds ratio [OR]: 0.47; 95% confidence interval [CI]: 0.26-0.86). There were also lower rates of overall antipsychotic continuation at hospital discharge (OR: 0.4; 95% CI: 0.18-0.89). This is the first study to demonstrate a reduction in antipsychotic continuation at transition from the MICU after implementation of an antipsychotic discontinuation bundle in ICU patients. We believe this bundle allows for safer transitions of care from the MICU and decreases unnecessary antipsychotic therapy.