title: Efficacy of transversus abdominis plane blocks in laparoscopic colorectal resections.
abstract: BACKGROUND
  The increasing use of laparoscopic techniques for colorectal resections means that the issue of postoperative analgesia needs to be reassessed. This nonrandomized comparative study aimed to assess the efficacy of the transversus abdominis plane (TAP) block in laparoscopic colorectal resections.
  
  
  METHODS
  Prospectively collected data from consecutive patients undergoing laparoscopic colorectal resections were used. Analgesia usage and outcome data for patients who had a TAP block and a postoperative morphine patient-controlled analgesia pump (PCA) were compared with those for patients who had a PCA alone.
  
  
  RESULTS
  Data for 74 patients were used in the final analysis (40 TAP/PCA and 34 PCA alone). There was a significant reduction in overall intravenous opiate use in the TAP/PCA group (31.3 vs. 51.8 mg; P = 0.03). The TAP/PCA group showed a slight trend toward a shorter hospital stay (3 vs. 4 days; P = 0.17) but no difference in postoperative complications or any other outcome measure. There was no procedure-related morbidity relating to the use of TAP blocks.
  
  
  CONCLUSIONS
  It appears that TAP blocks reduce postoperative analgesia use of patients undergoing laparoscopic colorectal resections within an enhanced recovery program, and this may have an impact on their postoperative hospital length of stay.
authors.affiliation: Department of Surgery, Queen's Medical Centre, Nottingham University Hospitals NHS Trust, Derby Road, Nottingham, NG7 2UH, UK. conaghan@doctors.org.uk
authors.forename: Philip
authors.initials: P
authors.lastname: Conaghan
authors.forename: Charles
authors.initials: C
authors.lastname: Maxwell-Armstrong
authors.forename: Nigel
authors.initials: N
authors.lastname: Bedforth
authors.forename: Chris
authors.initials: C
authors.lastname: Gornall
authors.forename: Bryn
authors.initials: B
authors.lastname: Baxendale
authors.forename: Li-Lin
authors.initials: LL
authors.lastname: Hong
authors.forename: Hyun-Mi
authors.initials: HM
authors.lastname: Carty
authors.forename: Austin G
authors.initials: AG
authors.lastname: Acheson
mesh_terms: D034861:Abdominal Wall / Q000000981:diagnostic imaging / Q000294:innervation; D000368:Aged; D016058:Analgesia, Patient-Controlled; D000701:Analgesics, Opioid / Q000008:administration & dosage; D003082:Colectomy; D005260:Female; D006801:Humans; D010535:Laparoscopy; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000627:therapeutic use; D009407:Nerve Block; D010149:Postoperative Pain / Q000188:drug therapy / Q000517:prevention & control*; D012007:Rectum / Q000601:surgery*; D014463:Ultrasonography
chemical_list: D000701:Analgesics, Opioid; D009020:Morphine