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Postoperative analgesia with extradural clonidine.
F Bonnet1, O Boico, S Rostaing
1Department of d'Anesthésie Reanimation No. 2, Hôpital Henri Mondor, Creteil.
British Journal of Anaesthesia
|October 1, 1989
Summary
Extradural clonidine significantly improved pain relief and extended analgesia duration after surgery compared to a saline placebo. Patients receiving clonidine experienced greater pain reduction and longer-lasting effects, though some reported drowsiness and hypotension.
Area of Science:
- Anesthesiology
- Pharmacology
Background:
- Postoperative pain management is crucial for patient recovery.
- Epidural analgesia is a common method for pain control.
Purpose of the Study:
- To evaluate the analgesic efficacy of extradural clonidine.
- To compare extradural clonidine with extradural saline for pain relief post-surgery.
Main Methods:
- Double-blind study involving 20 patients undergoing orthopedic or perineal surgery.
- Patients randomly assigned to receive either extradural clonidine (2 µg/kg) or saline.
- Pain assessed using a visual analogue scale (VAS) over 6 hours; morphine administered as needed.
Main Results:
- Extradural clonidine group showed significantly greater maximum pain relief (68.2%) compared to saline (14.7%).
- Analgesia duration was substantially longer in the clonidine group (210 min) versus the saline group (45 min).
- Drowsiness and moderate hypotension were noted side effects in the clonidine group.
Conclusions:
- Extradural clonidine provides effective and prolonged analgesia following surgery.
- Clonidine is a viable option for enhancing postoperative pain management, with manageable side effects.