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Postoperative pain control with methadone following lower abdominal surgery
1Department of Anesthesiology, Mount Sinai Medical Center, New York, NY 10029.
Journal of Clinical Anesthesia
|March 1, 1991
Summary
Methadone provided superior postoperative pain control compared to morphine in women undergoing lower abdominal surgery. Patients receiving methadone required less medication and reported lower pain intensity, demonstrating its effectiveness for sustained analgesia.
Area of Science:
- Anesthesiology
- Pharmacology
- Surgical Pain Management
Background:
- Postoperative pain management is crucial for patient recovery.
- Opioid analgesics are commonly used, but their efficacy and side effect profiles vary.
- Methadone's pharmacokinetic and pharmacodynamic properties suggest potential for sustained analgesia.
Purpose of the Study:
- To describe a technique for methadone use in lower abdominal surgery.
- To evaluate methadone's efficacy for postoperative analgesia.
- To compare methadone with morphine for postoperative pain control.
Main Methods:
- Randomized, single-blind prospective clinical trial.
- Forty women undergoing abdominal hysterectomy or myomectomy.
- Comparison of intravenous methadone versus morphine for intraoperative and postoperative pain management.
Main Results:
- Patients receiving methadone required significantly less medication in the recovery room (2.0 vs 4.4 mg) and on the wards (4.5 vs 42.3 mg).
- Methadone group reported lower pain intensity on the visual analog scale (1.9 vs 3.4).
- Statistically significant differences (p < 0.01) favored methadone.
Conclusions:
- Methadone provides effective and sustained postoperative analgesia following lower abdominal surgery.
- Its long plasma half-life contributes to reduced pain and minimal need for additional analgesics.
- Methadone use in this context is safe and effective, without significant toxicity or side effects.
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