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Patient-controlled analgesia for labour using remifentanil: a feasibility study
1Department of Anaesthetics, The Ulster Hospital, Dundonald, Belfast BT16 0RH, UK.
British Journal of Anaesthesia
|August 23, 2001
Summary
Patient-controlled remifentanil analgesia safely provided significant pain relief during labor for most women. This method offered worthwhile, though incomplete, pain management without adverse effects on fetal heart rate or newborns.
Area of Science:
- Anesthesiology
- Obstetrics
- Pharmacology
Background:
- Labor pain management is crucial for maternal well-being.
- Patient-controlled analgesia (PCA) offers personalized pain relief.
- Remifentanil is a potent opioid analgesic with a short duration of action.
Purpose of the Study:
- To evaluate the efficacy and safety of remifentanil PCA for labor pain.
- To determine optimal dosing parameters for remifentanil in laboring women.
- To assess maternal pain reduction and neonatal outcomes.
Main Methods:
- 21 women used a remifentanil PCA device during labor.
- Variable bolus doses (0.25-1.0 µg/kg) and background infusions were tested.
- Pain scores (VAS 0-10 cm) and neonatal outcomes (Apgar scores, cord blood gases) were recorded.
Main Results:
- 90% of women experienced pain reduction from baseline.
- Median pain score reduction was 3 cm (range 0-8 cm).
- Significant pain reduction (P<0.05) observed with bolus doses of 0.25-0.5 µg/kg; no significant changes in fetal heart rate or neonatal parameters.
Conclusions:
- Remifentanil PCA, particularly with bolus doses of 0.25-0.5 µg/kg without background infusion, offers safe and effective labor analgesia.
- This method provides worthwhile pain relief, though not complete, for laboring women.
- The system demonstrated a favorable safety profile for both mother and neonate.
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