Article Notes
- Nausea & vomiting (NNH 10 each)
- Urinary retention (NNH 7)
- Pruritus (NNH 4)
- Respiratory depression (NNH 38-59 for IT morphine 0.05-0.5 mg)
- Successful catheter insertion on first attempt in 47%
- Satisfactory and uncomplicated analgesia in 55%.
- Dural puncture in 4%.
- Subdural catheterization in 4%.
This meta-analysis investigated the benefits and risks of intrathecal morphine and fentanyl, concluding that:
Intrathecal morphine prolongs post-operative analgesia on average more than 8 hours, but at cost of:
Intrathecal fentanyl prolongs post-operative analgesia on average almost 2 hours, but at a cost of pruritus (NNH 3).
A case report and brief literature review examining the efficacy and complications of labor epidural analgesia in patients with Harrington rods after scoliosis surgery.
Ho, Ngan Kee & Chung reviewed 52 reported cases in the literature showing:
Lowest success rates, highest repeated-attempts and highest complication rates (DP 8%, failure 8%, poor analgesia 55%) occurred in those with a spinal surgery scar extending below the epidural insertion point.
Articles of interest relevant to labor epidural analgesia, both specifically focusing on obstetric epidurals and more peripherally relevant to obstetric labor analgesia.