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Screening for gestational diabetes; past, present and future

Screening for gestational diabetes; past, present and future Gestational diabetes is carbohydrate intolerance, with onset or first recognition of hyperglycaemia during pregnancy. Several studies have suggested that gestational hyperglycaemia is associated with adverse maternal and fetal outcomes, promoting the case for screening. Conversely, others argue that screening for gestational diabetes may colour the clinical judgement, influencing further management, e.g. more ‘unjustified’ caesarean sections. Additionally, the lack of definitive data either on a clear‐cut glycaemic threshold for the development of adverse outcomes or on the impact of intervention is emphasized by opponents of screening. This review attempts to evaluate the available data on screening for gestational diabetes. Oral glucose tolerance test is promoted on the basis that the diabetogenic stress of pregnancy is encountered during late gestation and is best recognized in the fed state. There are different tests, including the 1 h/50‐g, 2 h/75‐g and 3 h/100‐g tests, with practical limitations, including the time and cost involved and the unpleasant supra‐physiological glucose load that is unrelated to body weight, and issues of reproducibility and sensitivity/specificity profiles. Despite its convenience, the poor sensitivity of random glucose has precluded its routine use for screening. Fasting glucose appears to be promising but further testing is required to ensure satisfactory sensitivity/specificity in different populations. Despite its limitations, the oral glucose tolerance test has become established as the ‘most acceptable’ diagnostic test for gestational diabetes. More convenient methods, e.g. fasting or random or post‐load glucose, have to be validated therefore against the oral glucose tolerance test to gain acceptance for routine screening. Diabet. Med 19, 351–358 (2002) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Diabetic Medicine Wiley

Screening for gestational diabetes; past, present and future

Hanna, F. W. F.; Peters, J. R.
Diabetic Medicine , Volume 19 (5) – May 1, 2002
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References (46)

Publisher
Wiley
Copyright
Copyright © 2002 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0742-3071
eISSN
1464-5491
DOI
10.1046/j.1464-5491.2002.00684.x
Publisher site
See Article on Publisher Site

Abstract

Gestational diabetes is carbohydrate intolerance, with onset or first recognition of hyperglycaemia during pregnancy. Several studies have suggested that gestational hyperglycaemia is associated with adverse maternal and fetal outcomes, promoting the case for screening. Conversely, others argue that screening for gestational diabetes may colour the clinical judgement, influencing further management, e.g. more ‘unjustified’ caesarean sections. Additionally, the lack of definitive data either on a clear‐cut glycaemic threshold for the development of adverse outcomes or on the impact of intervention is emphasized by opponents of screening. This review attempts to evaluate the available data on screening for gestational diabetes. Oral glucose tolerance test is promoted on the basis that the diabetogenic stress of pregnancy is encountered during late gestation and is best recognized in the fed state. There are different tests, including the 1 h/50‐g, 2 h/75‐g and 3 h/100‐g tests, with practical limitations, including the time and cost involved and the unpleasant supra‐physiological glucose load that is unrelated to body weight, and issues of reproducibility and sensitivity/specificity profiles. Despite its convenience, the poor sensitivity of random glucose has precluded its routine use for screening. Fasting glucose appears to be promising but further testing is required to ensure satisfactory sensitivity/specificity in different populations. Despite its limitations, the oral glucose tolerance test has become established as the ‘most acceptable’ diagnostic test for gestational diabetes. More convenient methods, e.g. fasting or random or post‐load glucose, have to be validated therefore against the oral glucose tolerance test to gain acceptance for routine screening. Diabet. Med 19, 351–358 (2002)

Journal

Diabetic Medicine – Wiley

Published: May 1, 2002

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