RESUMO
Opioids are the mainstay of pain management and sedation in critically ill patients, which can lead to the development of physiologic tolerance and dependency. The prevalence of iatrogenic opioid withdrawal syndrome (IWS) is reported as 17-32% in the ICU; however, limited evidence exists for the medical ICU patient population. OBJECTIVES: To identify the and risk factors for IWS in adult patients admitted to critical care medicine services who received greater than or equal to 24 hours of continuous opioid infusion therapy. DESIGN SETTING AND PARTICIPANTS: A prospective, observational study was conducted in a tertiary care hospital in adult medical ICU patients. Ninety-two patients who received greater than or equal to 24 hours of continuous opioid infusions were included in the study. MAIN OUTCOMES AND MEASUREMENTS: Patients were assessed daily after opioid infusion discontinuation using the Clinical Opiate Withdrawal Scale (COWS) and the Diagnostic and Statistical Manual of Mental Disorders (DSM-V) opioid withdrawal criteria for a maximum of 5 days. The primary outcome was the prevalence of IWS of moderate severity or greater using COWS. Secondary outcomes included the prevalence of IWS diagnosis of any severity based on COWS, the prevalence of IWS diagnosis based on a positive DSM-V score, and the identification of potential risk factors for developing IWS of any severity. RESULTS: Four hundred forty-seven patients received greater than or equal to 24 hours of continuous opioid therapy. Of these, 385 were excluded, leaving 92 patients included in the final analysis. Except for a higher prevalence of psychiatric history in the IWS-positive group, baseline characteristics were similar. Overall, 11 patients (12%) developed IWS of moderate severity or greater, based on COWS. The IWS-positive group also had longer durations of opioid infusions, higher cumulative opioid infusion doses, higher mean daily doses, and higher infusion rates at any given time. The concomitant use of dexmedetomidine (38.3 vs 15.6%, p = 0.014) and benzodiazepines (63.8 vs 37.8%, p = 0.021) during or after the opioid infusion were significantly higher in the IWS-positive group compared with the IWS-negative group. No significant differences were found between the two groups for scheduled or as needed opioids after cessation of the opioid infusion. Continuous opioid infusions greater than or equal to 72 hours and total daily dose greater than or equal to 1,200 µg were found to be independent predictors for the development of iatrogenic opioid withdrawal via logistic regression. CONCLUSIONS AND RELEVANCE: Approximately one in every eight patients receiving continuous infusion opioid for greater than 24 hours while mechanically ventilated in the medical ICU will develop IWS of moderate severity or greater; this increases to one in three patients diagnosed with DSM-V criteria or any level of IWS severity. Patients receiving opioid infusions greater than or equal to 72 hours, or a total daily fentanyl dose of greater than or equal to 1,200 µg (~ 50 µg/hr) are at a higher risk for developing IWS and should be monitored as part of clinical practice when opioid infusions are discontinued.
RESUMO
Background: Minority populations are often underrepresented in landmark trials for the management of heart failure with reduced ejection fraction (HFrEF). Major trials shaping the guidelines sometimes include as few as 5% black patients. Objective: The purpose of this pilot study was to evaluate the initiation of guideline-directed medical therapy (GDMT) for HFrEF on hospital discharge for minority vs white populations and its impact on all-cause 30-day readmission rates to identify areas for larger future research studies and opportunities for pharmacist intervention. Methods: A retrospective analysis was conducted on patients with HFrEF patients discharged over a 3-month period. The primary objective was to compare all-cause 30-day readmissions in minority vs white patients with HFrEF who were discharged on initial GDMT. Results: 300 patients were included in this study, with 188 patients in the minority group and 112 patients in the white group. The minority group was predominantly African American (92%). The primary endpoint demonstrated significantly higher 30-day all-cause readmissions in minority patients compared to white patients who received initial GDMT (20.5 vs 7.7%, P = .0144), despite similar rates of GDMT therapy between groups. Conclusion: Initial GDMT in minority patients may not reduce readmissions to the same extent seen in white patients. Special emphasis should be placed on evaluating minority patients with HFrEF for additional therapeutic interventions.
