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1.
Curr Opin Obstet Gynecol ; 32(5): 322-334, 2020 10.
Article in English | MEDLINE | ID: covidwho-629087

ABSTRACT

PURPOSE OF REVIEW: Gestational diabetes mellitus (GDM) is associated with adverse pregnancy complications. Accurate screening and diagnosis of gestational diabetes are critical to treatment, and in a pandemic scenario like coronavirus disease 2019 needing a simple test that minimises prolonged hospital stay. We undertook a meta-analysis on the screening and diagnostic accuracy of the haemoglobin A1c (HbA1c) test in women with and without risk factors for gestational diabetes. RECENT FINDINGS: Unlike the oral glucose tolerance test, the HbA1c test is simple, quick and more acceptable. There is a growing body of evidence on the accuracy of HbA1c as a screening and diagnostic test for GDM. We searched Medline, Embase and Cochrane Library and selected relevant studies. Accuracy data for different thresholds within the final 23 included studies (16 921 women) were pooled using a multiple thresholds model. Summary accuracy indices were estimated by selecting an optimal threshold that optimises either sensitivity or specificity according to different scenarios. SUMMARY: HbA1c is more useful as a specific test at a cut-off of 5.7% (39 mmol/mol) with a false positive rate of 10%, but should be supplemented by a more sensitive test to detect women with GDM.


Subject(s)
Diabetes, Gestational/diagnosis , Glycated Hemoglobin A/analysis , Case-Control Studies , Female , Humans , Predictive Value of Tests , Pregnancy , Risk Factors
2.
Eur J Endocrinol ; 183(2): G49-G56, 2020 Aug.
Article in English | MEDLINE | ID: covidwho-701826

ABSTRACT

The COVID-19 pandemic has required rapid transformation and adaptation of healthcare services. Women with gestational diabetes mellitus (GDM) are one of the largest high-risk groups accessing antenatal care. In reformulating the care offered to those with GDM, there is a need to balance the sometimes competing requirement of lowering the risk of direct viral transmission against the potential adverse impact of service changes. We suggest pragmatic options for screening of GDM in a pandemic setting based on blood tests, and risk calculators applied to underlying risk factors. Alternative models for antenatal care provision for women with GDM, including targeting high-risk groups, early lifestyle interventions and remote monitoring are provided. Testing options and their timing for postpartum screening in women who had GDM are also considered. Our suggestions are only applicable in a pandemic scenario, and usual guidelines and care pathways should be re-implemented as soon as possible and appropriate.


Subject(s)
Diabetes, Gestational/diagnosis , Endocrinology/methods , Obstetrics/methods , Practice Guidelines as Topic , Prenatal Care/methods , Adult , Betacoronavirus , COVID-19 , Coronavirus Infections/prevention & control , Coronavirus Infections/transmission , Endocrinology/standards , Female , Humans , Obstetrics/standards , Pandemics/prevention & control , Pneumonia, Viral/prevention & control , Pneumonia, Viral/transmission , Pregnancy , Pregnancy Complications, Infectious/prevention & control , Pregnancy Complications, Infectious/virology , Prenatal Care/standards , SARS-CoV-2
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