Does the opioid-sparing effect of rectal diclofenac following total abdominal hysterectomy benefit the patient?
GROUND: 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 pl