Valproic Acid For Agitation In The Intensive Care Unit: a Retrospective Analysis Of Psychiatric Consults
Research Square (Research Square)(2023)
Abstract
Abstract Background Agitation is a common clinical problem encountered in the intensive care unit (ICU). Treatment options are based on clinical experience and sparse quality literature. Aim The aim of this study was to evaluate the effect of valproic acid (VPA) as adjuvant treatment for agitation in the ICU as well as to identify independent predictors of response. Method This retrospective single center observational study evaluated adult patients admitted to the ICU for whom a psychiatric consultation was requested for agitation management, with agitation defined as a Richmond Agitation Sedation Score of 2 or greater. A descriptive analysis of the proportion of agitation-free patients per day of follow-up, the incidence of agitation-related-events, as well as the evolution of co-medications use over time are presented. A logistic regression model was used to assess predictors of VPA response, defined as being agitation-free on Day 7 and GEE models were used to evaluate the independent effect of VPA as adjuvant therapy for agitation in the critically ill. Results One hundred seventy-five (175) patients were included in the study with 78 receiving VPA. The percentage of agitation-free patients was 6.5% (5/77) on Day 1, 14.1% (11/78) on Day 3 and 39.5% (30/76) on Day 7. Multivariate regression model for clinical and demographic variables identified female gender as predictor of response on Day 7 (OR 6.10 [1.18–31.64], p = 0.03). The independent effect of VPA was non-significant when compared to a control group. Conclusion Although VPA used as adjuvant treatment was associated with a decrease in agitation, its effect when compared to a control group did not yield significant results.
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Key words
agitation,intensive care unit
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