title: Comparing pyloromyotomy outcomes across Canada.
abstract: BACKGROUND
  Changing patterns of referral and management of hypertrophic pyloric stenosis (HPS) in North America have recently been described. Comfort with perioperative management, anesthesia, and corrective surgery have been cited as reasons for these changes. Our primary objective was to assess pyloromyotomy outcomes between different hospital types across Canada. The secondary objective was to geospatially map all pyloromyotomies to identify regions of higher HPS incidence across Canada.
  
  
  METHODS
  Data of all pyloromyotomies done between 2011 and 2013 were acquired from Canadian Institute for Health Information (CIHI). Complication rates and length of hospital stay (LOS) were analyzed. Postal codes for each patient were used to geospatially map regions of higher HPS incidence.
  
  
  RESULTS
  A total of 1261 pyloromyotomies were assessed. There was no difference in LOS or complication rates between different hospital types or surgeon group. Open pyloromyotomies were done in 75% of the cases. Several regions of higher HPS incidence were identified across Canada.
  
  
  CONCLUSIONS
  This study found no difference in complication rate or LOS stay between hospital type and surgeon type across Canada. This may reflect a previously identified referral trend in the United States towards pediatric centers. Several regions of higher HPS incidence were identified, and may aid in identifying genetic elements causing HPS.
  
  
  METHODS
  2c.
authors.affiliation: Dalhousie University, Division of General Surgery, QEII Health Sciences Centre, 8-813 VG Site, 1276 South Park Street, Halifax, NS, B3H 2Y9, Canada. Electronic address: acednie@gmail.com.
authors.forename: Alexander C
authors.initials: AC
authors.lastname: Ednie
authors.affiliation: Simon Fraser University, Department of Geography, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
authors.forename: Ofer
authors.initials: O
authors.lastname: Amram
authors.affiliation: Simon Fraser University, Department of Geography, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada.
authors.forename: Nadine
authors.initials: N
authors.lastname: Schuurman
authors.affiliation: Dalhousie University, Division of General Surgery, QEII Health Sciences Centre, 8-813 VG Site, 1276 South Park Street, Halifax, NS, B3H 2Y9, Canada; IWK Health Centre, Division of Pediatric Surgery, 5980 University Ave, Halifax, NS, B3K 6R8, Canada.
authors.forename: Natalie L
authors.initials: NL
authors.lastname: Yanchar
mesh_terms: D002170:Canada / Q000453:epidemiology; D005260:Female; D054625:Healthcare Disparities / Q000706:statistics & numerical data*; D006801:Humans; D015994:Incidence; D007223:Infant; D007231:Infant, Newborn; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology; D046248:Pyloric Stenosis, Hypertrophic / Q000453:epidemiology / Q000601:surgery*; D000074882:Pyloromyotomy; D016896:Treatment Outcome
keywords: Incidence; National; Outcomes; Pyloromyotomy