An Update on Screening Strategies for Gestational Diabetes Mellitus: A Narrative Review
Caro Minschart,1 Kaat Beunen,1 Katrien Benhalima1,2 1Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, 3000, Belgium; 2Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Leuven, 3000, BelgiumCorrespondence: Caro Minschar...
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| Formato: | article |
| Lenguaje: | EN |
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Dove Medical Press
2021
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| Acceso en línea: | https://doaj.org/article/4f1dd5ad985046c89aaba42b777cd0bf |
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| Sumario: | Caro Minschart,1 Kaat Beunen,1 Katrien Benhalima1,2 1Clinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, 3000, Belgium; 2Department of Endocrinology, University Hospital Gasthuisberg, KU Leuven, Leuven, 3000, BelgiumCorrespondence: Caro MinschartClinical and Experimental Endocrinology, Department of Chronic Diseases and Metabolism, KU Leuven, Herestraat 49, Leuven, 3000, BelgiumTel +3216345134Email caro.minschart@kuleuven.beAbstract: Gestational diabetes mellitus (GDM) is a frequent medical complication during pregnancy. Screening and diagnostic practices for GDM are inconsistent across the world. This narrative review includes data from 87 observational studies and randomized controlled trials (RCTs), and aims to give an overview of the current evidence on screening strategies and diagnostic criteria for GDM. Screening in early pregnancy remains controversial and studies show conflicting results on the benefit of screening and treatment of GDM in early pregnancy. Implementing the one-step “International Association of Diabetes and Pregnancy Study Groups” (IADPSG) screening strategy at 24– 28 weeks often leads to a substantial increase in the prevalence of GDM, without conclusive evidence regarding the benefits on pregnancy outcomes compared to a two-step screening strategy with a glucose challenge test (GCT). In addition, RCTs are needed to investigate the impact of treatment of GDM diagnosed with IADPSG criteria on long-term maternal and childhood outcomes. Selective screening using a risk-factor-based approach could be helpful in simplifying the screening algorithm but carries the risk of missing significant proportions of GDM cases. A two-step screening method with a 50g GCT and subsequently a 75g oral glucose tolerance test (OGTT) with IADPSG could be an alternative to reduce the need for an OGTT. However, to have an acceptable sensitivity to screen for GDM with the IADPSG criteria, the threshold of the GCT should be lowered from 7.8 to 7.2 mmol/L. A pragmatic approach to screen for GDM can be implemented during the COVID-19 pandemic, using fasting plasma glucose (FPG), HbA1c or even random plasma glucose (RPG) to reduce the number of OGTTs needed. However, usual guidelines and care should be resumed as soon as the COVID pandemic is controlled.Keywords: gestational diabetes mellitus, screening, diabetes, pregnancy |
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