title: Infiltration of Local Anesthesia at Wound Site after Single-Incision Laparoscopic Colectomy Reduces Postoperative Pain and Analgesic Usage.
abstract: OBJECTIVE
  Minimally invasive laparoscopy provides faster recovery, less pain, fewer complications, and better cosmesis than laparotomy. We aimed to evaluate outcomes of postoperative local anesthesia infiltration at the single-incision laparoscopic surgery (SILS) wound.
  
  
  METHODS
  This prospective, non-randomized controlled study evaluated outcomes of 58 colorectal cancer cases receiving SILS from May 2010 to December 2010. Twenty-nine patients received postoperative infiltration of local anesthesia at the wound site; another 29 patients did not. Demographic, intra- and postoperative data were compared. Postoperative pain was assessed by visual analogue scale and analgesic usage.
  
  
  RESULTS
  Local anesthesia group included 16 males, 13 females (mean age, 62.0 ± 15.1 years); no local anesthesia group included 14 males, 15 females (mean age, 58.1 ± 12.7 years). There were no significant differences between groups at baseline (i.e., age, gender, disease stage, tumor location or size) except BMI (25.2 ± 2.8 vs. 23.5 ± 3.4, p = 0.041) was significantly higher. Postoperative pain scores were significantly lower in local anesthesia group than in no local anesthesia group (median VAS score 2.0, IQR 2.0-3.0 vs. VAS score 3.0, IQR 3.0-4.0, respectively, P = 0.024).
  
  
  CONCLUSIONS
  Our results provide further evidence of SILS safety. Local anesthesia infiltration at SILS wounds decreases postoperative wound pain and analgesic usage.
authors.forename: Ko-Chao
authors.initials: KC
authors.lastname: Lee
authors.forename: Chien-Chang
authors.initials: CC
authors.lastname: Lu
authors.forename: Shung-Eing
authors.initials: SE
authors.lastname: Lin
authors.forename: Chia-Lo
authors.initials: CL
authors.lastname: Chang
authors.forename: Hong-Hwa
authors.initials: HH
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D000701:Analgesics, Opioid / Q000627:therapeutic use; D000779:Anesthetics, Local / Q000627:therapeutic use*; D002045:Bupivacaine / Q000627:therapeutic use*; D003082:Colectomy / Q000379:methods*; D003110:Colonic Neoplasms; D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000379:methods; D008297:Male; D008614:Meperidine / Q000627:therapeutic use; D008875:Middle Aged; D010147:Pain Measurement; D010149:Postoperative Pain / Q000188:drug therapy / Q000517:prevention & control*
chemical_list: D000701:Analgesics, Opioid; D000779:Anesthetics, Local; D008614:Meperidine; D002045:Bupivacaine