title: SOGC CLINICAL PRACTICE GUIDELINE: guidelines for the management of vasa previa.
abstract: OBJECTIVE
  To describe the etiology of vasa previa and the risk factors and associated condition, to identify the various clinical presentations of vasa previa, to describe the ultrasound tools used in its diagnosis, and to describe the management of vasa previa.
  
  
  RESULTS
  Reduction of perinatal mortality, short-term neonatal morbidity, long-term infant morbidity, and short-term and long-term maternal morbidity and mortality.
  
  
  METHODS
  Published literature on randomized trials prospective cohort studies, and selected retrospective cohort studies was retrieved through searches of PubMed or Medline, CINAHL, and the Cochrane Library, using appropriate controlled vocabulary (e.g., selected epidemiological studies comparing delivery by Caesarean section with vaginal delivery studies comparing outcomes when vasa previa is diagnosed antenatally vs.intrapartum) and key words (e.g. vasa previa). Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. Searches were updated on a regular basis and incorporated into the guideline to October 1, 2008. Grey (unpublished) literature was identified through searching the websites of health technology assessment and health technology assessment-related agencies,clinical practice guideline collections, clinical trial registries, and from national and international medical specialty societies.
  
  
  METHODS
  The evidence collected was reviewed by the Diagnostic Imaging Committee and the Maternal Fetal Medicine Committee of the Society of Obstetricians and Gynaecologists of Canada (SOGC) and quantified using the evaluation of evidence guidelines developed by the Canadian Task Force on Preventive Health Care.
  
  
  RESULTS
  The benefit expected from this guideline is facilitation of optimal and uniform care for pregnancies complicated by vasa previa.
  
  
  BACKGROUND
  The Society of Obstetricians and Gynaecologists of Canada.
authors.forename: Robert
authors.initials: R
authors.lastname: Gagnon
authors.forename: Lucie
authors.initials: L
authors.lastname: Morin
authors.forename: Stephen
authors.initials: S
authors.lastname: Bly
authors.forename: Kimberly
authors.initials: K
authors.lastname: Butt
authors.forename: Yvonne M
authors.initials: YM
authors.lastname: Cargil
authors.forename: Nanette
authors.initials: N
authors.lastname: Denis
authors.forename: Marja Anne
authors.initials: MA
authors.lastname: Hietala-Coyle
authors.forename: Kenneth Ian
authors.initials: KI
authors.lastname: Lim
authors.forename: Annie
authors.initials: A
authors.lastname: Ouellet
authors.forename: Maria-Hélène
authors.initials: MH
authors.lastname: Racicot
authors.forename: Shia
authors.initials: S
authors.lastname: Salem
authors.forename: Lynda
authors.initials: L
authors.lastname: Hudon
authors.forename: Melanie
authors.initials: M
authors.lastname: Basso
authors.forename: Hayley
authors.initials: H
authors.lastname: Bos
authors.forename: Marie-France
authors.initials: MF
authors.lastname: Delisle
authors.forename: Dan
authors.initials: D
authors.lastname: Farine
authors.forename: Kirsten
authors.initials: K
authors.lastname: Grabowska
authors.forename: Savas
authors.initials: S
authors.lastname: Menticoglou
authors.forename: William
authors.initials: W
authors.lastname: Mundle
authors.forename: Lynn
authors.initials: L
authors.lastname: Murphy-Kaulbeck
authors.forename: Annie
authors.initials: A
authors.lastname: Ouellet
authors.forename: Tracy
authors.initials: T
authors.lastname: Pressey
authors.forename: Anne
authors.initials: A
authors.lastname: Roggensack