Nighttime medication administration and patient perception of sleep in the intensive care unit

Abstract

AbstractIntroductionEnvironmental, patient, disease, and care‐related factors can lead to sleep disruption in the intensive care unit (ICU). Medication administration is a potentially modifiable factor in this setting that has not been well described as a target for sleep improvement.ObjectivesTo determine characteristics of nighttime medication administration practices in the ICU, evaluate the effect on patient perceived sleep, and assess the opportunity for pharmacist‐led nighttime medication administration stewardship.MethodsThis was a multicenter, retrospective, observational cohort study. Patients included for chart review had perceived sleep measured using the Richards‐Campbell Sleep Questionnaire (RCSQ). Data were collected on patient characteristics, ICU exposures, and nighttime medications administered. Four RCSQ groups defined for comparison were RCSQ 0–25 indicating “very poor” sleep, 26–50 “poor” sleep, 51–75 “good” sleep, and 76–100 “very good” sleep.ResultsOverall, 115 patients with RCSQ assessments and 435 nighttime medication administrations were included. Nighttime medications were most commonly cardiovascular (28.9%) and central nervous system (21.4%) agents, administered via intravenous (54.5%) and oral (22.7%) routes. Patient characteristics were comparable between the four groups except for history of head trauma. Patients reporting very poor sleep had a significantly higher median number of nighttime medications administered as compared to patients reporting very good sleep (4.0 [interquartile range (IQR) (2, 6)] vs. 2.5 [IQR 1, 4], adjusted p = 0.048). Approximately three‐quarters of nighttime medications occurred between the hours of 22:00–0:59 and 5:00–5:59. Nearly 40% of nighttime medications could have been retimed for daytime administration.ConclusionsUnnecessary nighttime medication administration is common and associated with poor patient perceived sleep in the ICU. Pharmacists are well‐positioned to evaluate timing of medication administration and cluster medication‐related care for daytime hours, when appropriate. Nighttime medication stewardship optimization by pharmacists is an opportunity to improve patient perceived sleep in the ICU.