British Journal of Anaesthesia, 2002, Vol. 88, No. 5 714-716
© 2002 The Board of Management and Trustees of the British Journal of Anaesthesia
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Does the opioid-sparing effect of rectal diclofenac following total abdominal hysterectomy benefit the patient?
University Department of Anaesthesia, Critical Care and Pain Management, Leicester Royal Infirmary, Leicester LE1 5WW, UK *Corresponding author
Background. The aim of this prospective, double-blind, randomized, placebo-controlled clinical trial was to investigate the opioid-sparing effects of rectal diclofenac following total abdominal hysterectomy.
Methods. Forty ASA I–II patients, aged 20–60 yr, were randomized to receive identical-looking suppositories of either diclofenac 75 mg or placebo, twice daily. All patients were given a standardized anaesthetic, with intravenous morphine via a patient-controlled analgesia device and either diclofenac or placebo for postoperative analgesia.
Results. The median 24 h morphine consumption (interquartile range) was significantly higher (P=0.02) in the placebo group [59 (45–85) mg] than in the diclofenac group [31 (14–65) mg]. In comparison with the placebo group, there were significant reductions in total pain score in the diclofenac group at rest (P=0.04) and on movement (P<0.01). Total (SD) sedation score was significantly lower (P=0.04) in the diclofenac group [90 (73) mm] than in the placebo group [148 (89) mm]. Total (interquartile range) nausea score was significantly lower (P<0.01) in the diclofenac group [14 (0–53) mm] than in the placebo group [64 (30–109) mm]. There was no significant difference between the two groups of patients in episodes of vomiting or number of rescue antiemetics.
Conclusions. Rectal diclofenac reduces morphine consumption, improves postoperative analgesia, and reduces the incidence of adverse effects such as sedation and nausea.
Br J Anaesth 2002; 88: 714–16
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