Neuraxial Opioid
Opioid medications administered into the epidural or intrathecal space to provide analgesia with minimal motor blockade.
Full Definition
Neuraxial opioids are analgesic medications delivered directly into the central nervous system via epidural or intrathecal injection, providing targeted pain relief by binding to opioid receptors in the spinal cord. Common neuraxial opioids in obstetric anesthesia include fentanyl, sufentanil, and morphine, each with distinct onset times, durations, and side effect profiles. These medications are often combined with local anesthetics to enhance analgesia while minimizing motor block, making them particularly valuable for labor analgesia and post-cesarean pain management. Side effects may include respiratory depression, pruritus, nausea, and urinary retention, requiring careful monitoring.
Usage
Usage note: Specify the route (epidural vs. intrathecal) and monitor for characteristic side effects.
In Context
- "Neuraxial opioid administration provided excellent labor analgesia with preserved motor function." — Labor management report
- "Post-operative monitoring protocols were implemented due to neuraxial opioid administration." — Post-cesarean care plan