SOGC CLINICAL PRACTICE GUIDELINE: guidelines for the management of vasa previa.
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 Grey (unpublished) literature was identified through searching the websites of health technology assessment and health technology assessment-related agencies,clinical practice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.
Gagnon
Robert
R
Morin
Lucie
L
Bly
Stephen
S
Butt
Kimberly
K
Cargil
Yvonne M
YM
Denis
Nanette
N
Hietala-Coyle
Marja Anne
MA
Lim
Kenneth Ian
KI
Ouellet
Annie
A
Racicot
Maria-Hélène
MH
Salem
Shia
S
Hudon
Lynda
L
Basso
Melanie
M
Bos
Hayley
H
Delisle
Marie-France
MF
Farine
Dan
D
Grabowska
Kirsten
K
Menticoglou
Savas
S
Mundle
William
W
Murphy-Kaulbeck
Lynn
L
Ouellet
Annie
A
Pressey
Tracy
T
Roggensack
Anne
A