• Shusee Visalyaputra, Nuchsaroch Pethpaisit, Premrudee Ariyanon, Sudta Parakkamodom, Ludda Permpolprasert, Parichad Apidechakul, Umaporn Latthikaviboon, Aticha Limsakul, Taweesak Santivarangkana, and Preyapa Sirilertmakasakul.
• Department of Anesthesiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
• J Med Assoc Thai. 2002 Sep 1;85 Suppl 3:S942-7.

UnlabelledWe conducted a randomized, double blinded, placebo controlled trial to evaluate the effectiveness of EMLA cream together with intraperitoneal lidocaine for pain relief in postpartum tubal ligation. In a factorial designed study, 90 postpartum patients were randomly assigned to have 5 g of EMLA or placebo cream applied to the skin in 2 groups of 45 patients and to have intraperitoneal instillation of 20 ml of either 1 per cent, 2 per cent lidocaine or normal saline in 3 groups of 30 patients. A numerical rating pain score (0-10) was used during skin check, skin infiltration and uterine tube manipulation. The pain scores were significantly lower in the EMLA group as compared with the placebo group during the skin forceps check (p < 0.001) and during local skin infiltration (p < 0.05). The pain scores were also significantly lower during intraabdominal manipulation in the group using either 1 per cent or 2 per cent intraperitoneal lidocaine as compared with the group using normal saline (p < 0.001), but no difference was found between the groups using 1 per cent and 2 per cent lidocaine.ImplicationsFive g of EMLA cream applied to the skin together with 20 ml of 1 per cent lidocaine instilled into the abdominal cavity effectively decrease intraoperative pain in patients undergoing postpartum tubal sterilization under local anesthesia.

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