Exposure to Intravenous Opioids Is Associated With Future Exposure to Opioids in Hospitalized Patients With Inflammatory Bowel Diseases

Background & aims: Opioid use is associated with increased mortality in patients with inflammatory bowel diseases (IBD). Hospitalized patients with IBD often receive high-potency intravenous opioids (IVOPIs). It is not known whether exposure to IVOPIs affects post-discharge opioid use or complications. We investigated the association between inpatient administration of IVOPIs and a post-discharge opioid prescription (OPIRx) in patients with IBD.

Methods: We performed a retrospective cohort study of 862 adults with IBD hospitalized at a large urban academic health system from March 1, 2017 through April 10, 2018. We collected clinical data from the electronic health records and used multivariable mixed-effect logistic regression to assess the association between inpatient opioid exposure and OPIRx-within 12 months while adjusting for confounders. IV and non-IVOPI exposures were evaluated as binary variables. IVOPI exposure was also evaluated as a continuous variable in IV morphine mg equivalents/length of stay (IVMMEs/day).

Results: Multivariable mixed-effect logistic regression demonstrated a significant association between IVOPIs and OPIRx (IV vs no IVOPIs odds ratio [OR], 3.3; 95% CI, 1.7-6.4 and IVMMEs/day OR, 1.1; 95% CI, 1.0-1.1). Subgroup analysis of patients with IBD flares (n = 621) identified a significant association between IVOPIs and OPIRx (IV vs no IVOPIs OR, 5.4; 95% CI, 2.6-11.0). Among patients who did not receive IVOPIs, there was a significant association between oral/transdermal opioids and OPIRx (non-IVOPIs vs no opioids OR, 4.2; 95% CI, 1.0-16.8).

Conclusions: Inpatient IV and non-IV opioid use are associated with post-discharge opioid exposure in patients with IBD, with a dose-dependent effect. Alternative analgesics should be considered for hospitalized patients with IBD, to minimize risk of future opioid use.