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A first-of-its-kind international study led by Western Sydney University has shown that treatment of gestational diabetes from early pregnancy adds additional protection for babies and mothers from pregnancy complications.

Published in the prestigious New England Journal of Medicine, the new research explored whether treatment of gestational diabetes before 20 weeks鈥� gestation among those already at high risk improves maternal and infant health, finding a reduction in complications.

Through a randomised controlled trial performed at 17 hospitals in Australia, Austria, Sweden and India, the study screened over 43,000 women to recruit 802 women with a diabetes risk factor before 20 weeks鈥� gestation, who had gestational diabetes by the World Health Organization definition.

Lead author Distinguished Professor David Simmons from the University鈥檚 School of Medicine and Translational Health Research Institute said the study provides new evidence for those deemed at higher risk for early testing and treatment of gestational diabetes beyond the current recommended approach of intervening at 24-28 weeks.

鈥淭esting for gestational diabetes is offered routinely later in pregnancy and those at higher risk are also tested early on to exclude undiagnosed type 2 diabetes. If these early glucose values are increased, but below those diagnostic of type 2 diabetes, we feel we should treat but data has been lacking to demonstrate the effects of such treatment on the mother or baby; we have now filled this major knowledge gap likely affecting millions of pregnancies every year,鈥� said Distinguished Professor Simmons.

The study assessed pregnancy outcomes with the initiation of treatment for gestational diabetes before 20 weeks鈥�, compared with no early treatment and subsequent initiation of treatment depending on results of repeat oral glucose tolerance testing (OGTT) at 24-28 weeks鈥� gestation, with significant and unexpected findings relating to respiratory distress in babies.