To evaluate the incidence of respiratory depression in opioid users for non-cancer pain and assess the comparative risk across different opioid types and the effect of concomitant gabapentinoids and benzodiazepines.
Approach:
Study Design: Retrospective cohort study using secondary care electronic health records from a large tertiary care hospital in Northwest England.
Study Population: Included adult inpatients aged ≥18 years who were opioid users during their hospital admission, excluding those with malignancies or specific opioid use cases.
Data Collection: Utilized electronic health records for medication administration, vital signs, and recorded NEWS assessments.
Key Findings:
Incidence rates of respiratory depression vary widely based on definitions and study populations.
Opioids differ in their respiratory depressant effects, with tramadol and buprenorphine having distinct profiles.
Concomitant use of benzodiazepines and gabapentinoids is associated with a higher risk of opioid-related respiratory depression.
Interpretation:
Limitations:
Variability in definitions of respiratory depression across studies.
Potential misclassification of opioid exposure due to reliance on prescription records.
Focus on inpatient populations may limit generalizability to outpatient settings.
