title: Practice makes perfect: progressive improvement of laparoscopic pyloromyotomy results, with experience.
abstract: BACKGROUND
  Pyloric stenosis can now be treated effectively with laparoscopic pyloromyotomy (LP). Few large outcome studies have been published regarding the laparoscopic technique. In this paper, we describe our experience with the first 185 consecutive LPs.
  
  
  METHODS
  An institutional review board-approved retrospective outcomes analysis was performed on our first 185 consecutive LPs. Previous publications comparing open pyloromyotomy (OP) and LP are reviewed. Our hypothesis is that, with experience, the outcome of LP will equal or surpass that of OP.
  
  
  RESULTS
  A total 185 infants underwent LPs during the study period. The infants had median values of age: 33 days; body weight: 4 kg; surgery duration: 25 minutes; postoperative length of stay (LOS): 25.5 hours; and total LOS: 45 hours. There were 7 complications (3.78%): 4 incomplete pyloromyotomies (2.2%), 1 pyloric mucosal perforation (0.5%), 1 delayed duodenal perforation (0.5%), and 1 wound infection (0.5%). There has been a progressive reduction in the time required for surgery, from a median of 29 minutes in the first 60 cases to 21.5 in the last 65. Postoperative LOS has fallen from a median of 26 hours in the first half to 24.5 in the later half. Complications occurred primarily in the first third of our cases.
  
  
  CONCLUSIONS
  We are able to demonstrate that, with experience, one can expect progressive improvement in the outcomes following LP in infants. Our surgery duration and complications in the last 65 cases are better than most published results for OP or LP.
authors.affiliation: Department of Pediatric Surgery, Children's Hospital of Illinois at OSF St. Francis Medical Center, Peoria, Illinois, USA. vegunta@uic.edu
authors.forename: Ravindra K
authors.initials: RK
authors.lastname: Vegunta
authors.forename: Jay H
authors.initials: JH
authors.lastname: Woodland
authors.forename: Arthur L
authors.initials: AL
authors.lastname: Rawlings
authors.forename: Lizabeth J
authors.initials: LJ
authors.lastname: Wallace
authors.forename: Richard H
authors.initials: RH
authors.lastname: Pearl
mesh_terms: D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010535:Laparoscopy; D007902:Length of Stay; D008297:Male; D009130:Muscle, Smooth / Q000601:surgery; D010043:Outcome and Process Assessment, Health Care; D011183:Postoperative Complications; D011707:Pyloric Stenosis / Q000601:surgery*; D011708:Pylorus / Q000601:surgery*; D012189:Retrospective Studies