Guideline No. 398: Progesterone for Prevention of Spontaneous Preterm Birth.

OBJECTIVES: To assess the benefits and risks of progesterone therapy for women at increased risk of spontaneous preterm birth (SPB) and to make recommendations for the use of progesterone to reduce the risk of SPB and improve postnatal outcomes. OPTIONS: To administer or withhold progesterone therapy for women deemed to be at high risk of SPB. OUTCOMES: Preterm birth, neonatal morbidity and mortality, and postnatal outcomes including neurodevelopmental outcomes. INTENDED USERS: Maternity care providers, including midwives, family physicians, and obstetricians. TARGET POPULATION: Pregnant women at increased risk of SPB. EVIDENCE: Medline, PubMed, EMBASE, and the Cochrane Library were searched from inception to October 2018 for medical subject heading (MeSH) terms and keywords related to pregnancy, preterm birth, previous preterm birth, short cervix, uterine anomalies, cervical conization, neonatal morbidity and mortality, and postnatal outcomes. This document represents an abstraction of the evidence rather than a methodological review. VALIDATION METHODS: This guideline was reviewed by the Maternal-Fetal Medicine Committee of the Society of Obstetricians and Gynaecologists of Canada (SOGC) and approved by the SOGC Board of Directors. BENEFITS, HARMS, AND/OR COSTS: Therapy with progesterone significantly reduces the risk of SPB in a subpopulation of women at increased risk. Although this therapy entails a cost to the woman in addition to the discomfort associated with its use, no other adverse effects to the mother or the baby have been identified. SUMMARY STATEMENTS (GRADE RATINGS IN PARENTHESES): RECOMMENDATIONS (GRADE RATINGS IN PARENTHESES).

Diabetes in Pregnancy.

OBJECTIVE: This guideline reviews the evidence relating to the diagnosis and obstetrical management of diabetes in pregnancy. OUTCOMES: The outcomes evaluated were short- and long-term maternal outcomes, including preeclampsia, Caesarean section, future diabetes, and other cardiovascular complications, and fetal outcomes, including congenital anomalies, stillbirth, macrosomia, birth trauma, hypoglycemia, and long-term effects. EVIDENCE: Published literature was retrieved through searches of PubMed and the Cochrane Library using appropriate controlled vocabulary (MeSH terms "diabetes" and "pregnancy"). Where appropriate, results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. There were no date limits, but results were limited to English or French language materials. VALUES: The quality of evidence was rated using the criteria described in the Report of the Canadian Task Force on Preventive Health Care (Table 1). SUMMARY STATEMENTS: Recommendations It is recognized that the use of different diagnostic thresholds for the "preferred" and "alternative" strategies could cause confusion in certain settings. Despite this, the committee has identified the importance of remaining aligned with the current Canadian Diabetes Association 2013 guidelines as being a priority. It is thus recommended that each care centre strategically align with 1 of the 2 strategies and implement protocols to ensure consistent and uniform reporting of test results.

Le diabète pendant la grossesse.

OBJECTIF: La présente Directive passe en revue les données probantes liées au diagnostic et à la prise en charge obstétricale du diabète durant la grossesse. ISSUES: Les issues évaluées étaient les issues maternelles à court et à long terme, dont la prééclampsie, la césarienne, le diabète éventuel et d'autres complications cardiovasculaires et les issues fœtales, dont les anomalies congénitales, la mortinaissance, la macrosomie, le traumatisme de la naissance, l'hypoglycémie et les effets à long terme. RéSULTATS: La littérature publiée a été récupérée par l'intermédiaire de recherches menées dans PubMed et The Cochrane Library au moyen d'un vocabulaire contrôlé (termes MeSH « diabète ¼ et « grossesse ¼) appropriés. Le cas échéant, les résultats ont été restreints aux analyses systématiques, aux essais comparatifs randomisés / essais cliniques comparatifs et aux études observationnelles. Aucune limite n'a été imposée en matière de date, mais les résultats ont été limités aux articles publiés en anglais ou en français. VALEURS: La qualité des résultats a été évaluée au moyen des critères décrits dans le rapport du Groupe d'étude canadien sur les soins de santé préventifs (Tableau 1). DéCLARATIONS SOMMAIRES: RECOMMANDATIONS.