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Related Experiment Videos

Epidural meperidine after cesarean section. A dose-response study

W D Ngan Kee1, K K Lam, P P Chen

  • 1Department of Anaesthesia and Intensive Care, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong. warwick@cuhk.edu.hk

Anesthesiology
|August 1, 1996
PubMed
Summary
This summary is machine-generated.

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A 25 mg dose of epidural meperidine offers superior postoperative pain relief after cesarean section compared to 12.5 mg. Higher doses do not improve analgesia and may increase side effects.

Area of Science:

  • Anesthesiology
  • Pharmacology

Background:

  • Epidural meperidine is recognized for its effectiveness in managing postoperative pain.
  • However, the optimal dosage for epidural meperidine in postoperative analgesia remains undetermined.

Purpose of the Study:

  • To determine the optimal dose of epidural meperidine for postoperative analgesia following cesarean section.
  • To compare the efficacy and safety of various epidural meperidine doses.

Main Methods:

  • A comparative study involving five doses of epidural meperidine (12.5, 25, 50, 75, and 100 mg) administered post-cesarean section.
  • Evaluation of visual analog pain scores, duration of analgesia, meperidine plasma concentrations, and side effects.

Main Results:

  • All tested doses provided effective analgesia, but 25 mg demonstrated a faster onset and longer duration than 12.5 mg.

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  • Doses exceeding 25 mg did not yield significant improvements in analgesia onset or duration.
  • Higher doses, particularly 100 mg, were associated with increased incidence of nausea and dizziness, with plasma concentrations below effective levels for most doses.

    • Conclusions:

    • Epidural meperidine is effective for postoperative pain management after cesarean delivery, though its duration is relatively short.
    • A single 25 mg dose of epidural meperidine is more effective than a 12.5 mg dose.
    • Increasing the epidural meperidine dose to 50 mg or higher does not provide additional benefits and may increase adverse events.