title: Peritoneal fibrinolytic response to various aspects of laparoscopic surgery: a randomized trial.
abstract: BACKGROUND
  Peritoneal fibrinolysis is important in peritoneal wound healing processes and adhesion formation. The peritoneal fibrinolytic response to laparoscopy is merely unknown. In the present study we investigate the effect of short-term laparoscopy on the peritoneal fibrinolytic response and the influence of intra-abdominal pressure, light intensity and choice of dissection device on this response.
  
  
  METHODS
  There were 50 patients scheduled for laparoscopic cholecystectomy randomized in five groups operated with various pressures, light intensities, and dissection devices. Peritoneal biopsies were taken at the beginning and the end of the procedure. Tissue concentrations of tissue-type plasminogen activator (tPA), urokinase-type plasminogen activator (uPA), plasminogen activator inhibitor type 1 (PAI-1), and the tPA-activity were measured using ELISA techniques.
  
  
  RESULTS
  There were no differences in tPA antigen, tPA-activity, uPA antigen, or PAI-1 antigen concentrations in biopsies taken at the beginning compared to samples taken at the end of the operation. Different intra-abdominal pressures, light intensities and the choice dissection device did not affect any of the measured parameters.
  
  
  CONCLUSIONS
  Short-term laparoscopy does not affect the peritoneal fibrinolytic activity. The used intra-abdominal pressure, light intensity and choice of dissection device do not affect peritoneal activity during short-term laparoscopy.
authors.affiliation: Department of Surgery, Alysis Zorggroep, Locatie Rijnstate, Arnhem, The Netherlands. w.brokelman@planet.nl
authors.forename: Walter J A
authors.initials: WJ
authors.lastname: Brokelman
authors.forename: Lena
authors.initials: L
authors.lastname: Holmdahl
authors.forename: Maria
authors.initials: M
authors.lastname: Bergström
authors.forename: Peter
authors.initials: P
authors.lastname: Falk
authors.forename: Jean H G
authors.initials: JH
authors.lastname: Klinkenbijl
authors.forename: Michael M P J
authors.initials: MM
authors.lastname: Reijnen
mesh_terms: D000328:Adult; D000368:Aged; D017081:Cholecystectomy, Laparoscopic / Q000379:methods*; D004210:Dissection; D004564:Electrocoagulation; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005342:Fibrinolysis; D006801:Humans; D008029:Lighting; D008297:Male; D008875:Middle Aged; D010537:Peritoneum / Q000378:metabolism / Q000502:physiology* / Q000601:surgery*; D017395:Plasminogen Activator Inhibitor 1 / Q000378:metabolism; D011312:Pressure; D000267:Tissue Adhesions / Q000378:metabolism; D010959:Tissue Plasminogen Activator / Q000378:metabolism; D014568:Urokinase-Type Plasminogen Activator / Q000378:metabolism; D014945:Wound Healing
chemical_list: D017395:Plasminogen Activator Inhibitor 1; D010959:Tissue Plasminogen Activator; D014568:Urokinase-Type Plasminogen Activator