title: Analgesic efficacy of continuous delivery of bupivacaine by an elastomeric balloon infusor after abdominal hysterectomy: a prospective randomised controlled trial.
abstract: OBJECTIVE
  To investigate the analgesic efficacy and morphine-sparing effect of continuous bupivacaine wound infiltration after abdominal hysterectomy.
  
  
  METHODS
  Prospective, randomised controlled trial.
  
  
  METHODS
  Fifty-two female ASA I or II patients were enrolled with 26 patients in each of the study and control groups.
  
  
  METHODS
  The study group received 0.5% bupivacaine infusion into the incisional (Pfannenstiel) wound via an elastomeric infusor at 2 mL/hr for 48 hours postoperatively plus morphine via a patient controlled analgesia (PCA) pump. The control group had only PCA morphine.
  
  
  RESULTS
  There were no significant differences in the visual analogue scores (VAS) for pain nor PCA morphine usage for 48 hours postoperatively
  
  
  CONCLUSIONS
  That continuous infusion of the incisional wound with 0.5% bupivacaine did not confer additional analgesia over PCA morphine after abdominal hysterectomy
authors.affiliation: Department of Anaesthesia, Changi General Hospital, Singapore, Singapore.
authors.forename: W M
authors.initials: WM
authors.lastname: Leong
authors.forename: W K
authors.initials: WK
authors.lastname: Lo
authors.forename: J W
authors.initials: JW
authors.lastname: Chiu
mesh_terms: D000328:Adult; D016058:Analgesia, Patient-Controlled; D000701:Analgesics, Opioid / Q000008:administration & dosage; D000779:Anesthetics, Local / Q000008:administration & dosage*; D002045:Bupivacaine / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007044:Hysterectomy; D007260:Infusion Pumps; D007263:Infusions, Parenteral; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage; D010149:Postoperative Pain / Q000188:drug therapy*; D011446:Prospective Studies; D016896:Treatment Outcome
chemical_list: D000701:Analgesics, Opioid; D000779:Anesthetics, Local; D009020:Morphine; D002045:Bupivacaine