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Dr. Paul Conaghan, a staff specialist in Obstetrics and Gynaecology at Mater Mothers' Hospital, discusses the management of gestational diabetes (GDM) in this informative forum. Highlighting the risks associated with GDM, including the potential for large babies and related complications, Dr. Conaghan emphasizes the importance of early screening and effective treatment. He reviews findings from the ACHOIS study and outlines key strategies for monitoring and managing pregnancies affected by GDM, ensuring better outcomes for mothers and infants.
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Dr Paul Conaghan GESTATIONAL DIABETES FORUM
Obstetric Management Dr Paul Conaghan Staff Specialist - O&G Mater Mothers Hospital Private Practice - Eve Health paul@evehealth.com.au
Obstetric Management • What are we worried about? • What benefit do we get? • What should I watch out for?
What are we worried about? • Big babies!!!!!! And the attendant risks thereof.
ACHOIS • Take 1000 women with abnormal GTT • Fasting BSL<7.8mmol/L • 2hr BSL 7.8-11.1mmol/L • Tell 500 of them – “You’re normal” and continue their routine antenatal care • Tell the other half – “You have diabetes” and send them off to multidisciplinary care • Compare their outcomes . . . .
ACHOIS • Those “labelled” as GDM had better scores on questionnaires related to their own general health and wellbeing, both during and 3 months after pregnancy • The “labelled” group had much lower scores on the Edinburgh PND scale at 3 months post-partum
Other benefits • Reduced risk of • PET (RR0.62) • Birthweight >4kg (RR 0.5) • Shoulder dystocia (RR0.42) • I don’t want to harp on HAPO . . . . but -
What should I do? • Everything Karin and Susie and Allison tell you to! • Skip the Glucose Challenge Test • Think carefully about risk at booking and do some form of screening
Booking in screening • Low risk • Random BSL – should be <8 • Do GTT at 26-28 weeks • High risk • Do GTT at booking and rpt at 26-28 weeks
What should I do? • Watch sugars and use treatment targets • Monitor fetal growth – reasonable to do at least one scan • Make an educated decision about time and mode of birth
Timing and Mode of Birth • EFW>4.5kg – consider LSCS • Reduces incidence of shoulder dystocia but NNT is 443 • If insulin requiring – electively deliver after 38 weeks • Reduces incidence of macrosomia and shoulder dystocia • If well-controlled with a normal size baby • Still consider IOL after 38 weeks
Afterward . . . • GTT at 6 weeks • Consider regular GTT - ?with annual health check or with PAP smear? • Warn the patient about the risk of Type II DM
What else? • Keep your thinking cap on! • AC>>HC in a morbidly obese patient with a strong family history of DM could still be GDM even if the GTT is normal!!