Gestational diabetes mellitus (GDM) is glucose intolerance that develops during pregnancy and can cause complications for both mother and fetus if not properly managed. The document discusses screening and diagnosis of GDM using a one-step approach oral glucose tolerance test, management through nutrition therapy, exercise and potentially insulin treatment, and obstetrical considerations like monitoring during labor and delivery planning. Intensive glucose control through early diagnosis and treatment can help improve outcomes.
The Primary Care Physician's guide to management of Pregnancy DiabetesHanifullah Khan
A guide on the screening, diagnosis and management of diabetes in pregnancy aimed at facilitating the handling of this condition in a primary care setting. Includes details on medications and dosages
The Primary Care Physician's guide to management of Pregnancy DiabetesHanifullah Khan
A guide on the screening, diagnosis and management of diabetes in pregnancy aimed at facilitating the handling of this condition in a primary care setting. Includes details on medications and dosages
Our aim is to reduce morbidity and mortality related to Non communicable diseases such as hypertension, diabetes, cardiovascular disease, stroke, Obesity, Cancer and lifestyle diseases among those least able to withstand the burden of the disease.
A comprehensive guide to the management of hyperglycaemia in pregnancy aimed at the primary care physician and based on latest evidenced based criteria. Includes information from latest studies such as HAPO study and ACHOIS, and involves guidelines from the IADPSG, ADA, WHO and Malaysia.
Our aim is to alleviate human suffering related to diabetes and its complications among those least able to withstand the burden of the disease. From 2002 to March 2017, the World Diabetes Foundation provided USD 130 million in funding to 511 projects in 115 countries. For every dollar spent, the Foundation raises approximately 2 dollars in cash or as in-kind donations from other sources. The total value of the WDF project portfolio reached USD 377 million, excluding WDF’s own advocacy and strategic platforms.
Gestational diabetes Mellitus is defined as:
“Glucose intolerance of any severity with onset or first recognition during pregnancy”
This definition is applicable irrespective of whether the condition resolves after delivery or not.
It does not exclude the possibility that diabetes could have antedated pregnancy.
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Our aim is to reduce morbidity and mortality related to Non communicable diseases such as hypertension, diabetes, cardiovascular disease, stroke, Obesity, Cancer and lifestyle diseases among those least able to withstand the burden of the disease.
A comprehensive guide to the management of hyperglycaemia in pregnancy aimed at the primary care physician and based on latest evidenced based criteria. Includes information from latest studies such as HAPO study and ACHOIS, and involves guidelines from the IADPSG, ADA, WHO and Malaysia.
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Gestational diabetes Mellitus is defined as:
“Glucose intolerance of any severity with onset or first recognition during pregnancy”
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It does not exclude the possibility that diabetes could have antedated pregnancy.
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GOAL
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being to preserve human and animal health and the effectiveness of antimicrobial medications.
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3. Objective of Presentation
Main Objective:
• Screening & Diagnosis of GDM
• Management of GDM
• Obstetrical management in GDM
Consequent of Hyperglycemia in:
• Fetus
• And mother
4. I. Introduction
GDM is a condition of glucose intolerance which lead to hyperglycemia
that related to pregnancy, onset or recognition during pregnancy.
• It develop in women whose pancreas function is not sufficient to overcome
the glucose regulation change during pregnancy.1
• GDM is different from Pregestational Diabetes that just know during
pregnancy.1
• Hyperglycemia results in both maternal and fetal complications
• Classically, GDM develop after 20 weeks of pregnancy.2
5. Prevalence of GDM in Asia
• Meta-analysis Of Observational
Studies in Epidemiology
• In 8 countries
• Diagnosis criteria: using IADPSG
Cong Luat Nguyen, Ngoc Minh Pham, Colin W. Binns,
Dat Van Duong, and Andy H. Lee. Prevalence of
Gestational Diabetes Mellitus in Eastern and
Southeastern Asia: A Systematic Review and Meta-
Analysis. https://doi.org/10.1155/2018/6536974
6.
7. Glycemic Regulation in Pregnancy
1er half of pregnancy (Anabolism Phase) => tend to be hypoglycemia almost
at night time and early morning.3
2nd trimester(20weeks) => tend to be hyperglycemia because of insulin
resistance and increase counter regulatory hormone.3
Beta-cell function multiplies 2 to 4 time than usual to overcome a good
glycemic regulation.
8.
9. II. Physiopathology
• hLP secret from Placenta4
• Increase progesterone
• In crease counter regulation
hormone
Cortisol
Leptin
GH
• Unsupportable beta-cell function
Develop to GDM
10. HPL => ⬇ phosphorylation => Alteration of IRS and PI3K => Block GLUT4
from cell membrane=> ⬆ Resistance to Insulin
hPL
LOW GLUCOSE
UPTAKE
11. Pathophysiology of Gestational Diabetes
Mellitus
Gestational
diabetes
mellitus
Insulin resistance
due to placental
secretion of anti-
insulin hormones
Maternal hepatic
glucose production
increases by 15%-
30% to meet fetal
demand late in
pregnancy Pancreatic -cell
dysfunction due to
• Genetics
• Autoimmune disorders
• Chronic insulin
resistance
Inturrisi M, et al. Endocrinol Metab Clin N Am. 2011;40:703-726. Metzger BE, et al. Diabetes Care. 2007;30(2):S251-S260.
11
12. III. Risk factor
☞ Women present at lease one of these criteria are at risk
History of GDM
Impaired glucose tolerance
First degree relative with diabetes
Excessive weigh gain during 18-24 weeks
BMI>25kg/m2
History of Macrosomia
Evidence of insulin resistance
Metabolic abnormalities
Polycystic ovarian syndrome
Age>35 years old
Unexplained miscarriage or
malformation
13. IV. Screening & Diagnosis
• Who should investigate for GDM ?
All pregnant women need to be screened for gestational diabetes.
According to High Prevalence in General Pregnancy Population.
Bad Prognostic in both, fetus and mother if no any Intervention.
• When should investigate ?
Depend on risk factor assessment.6
without Risk: recommend to screen at 24-28 weeks
With Risk: Should screen at the first prenatal visit(<13 weeks) . If negative =>
Repeat at 24-28 weeks.
14. Diagnosis Threshold
Two step approach:
• The first step is a 50g 1H glucose challenge test (GCT).
Screen-positive patients go on to
• the second step, a 100g, 3H oral glucose tolerance test (GTT).
One step approach
• Taking amount of 75g glucose, dosage at OH, 1H and 2H.
☞ One step approach is more simplified and more sensitive for diagnosis
GDM VS Two step approach will miss approximately 25 percent of cases
van Leeuwen M, Louwerse MD, Opmeer BC, Limpens J, Serlie MJ, Reitsma JB, Mol BW. Glucose challenge test for detecting
gestational diabetes mellitus: a systematic review. BJOG. 2012 Mar;119(4):393-401
18. V. DM in Pregnancy VS GDM
• Pre-gestational diabetes: is defined as Type1 or Type2 DM that
existed before conception.
Knew and Planning = good
Diagnosis during pregnancy (Overt DM) = worse
High risk of of congenital malformations (organogenesis)
Women are at risk diabetic ketoacidosis
Aggravated microvascular complication
• GDM : Glucose intolerance during pregnancy only.
19. How To Differentiate these Two ?
Overt DM
FPG > = 126 mg/dl
RPG > = 200 mg/dl
HbA1C > = 6.5%
GDM
FPG >= 92 - 125
mg/dl
< 13 weeks : OGTT
1H >= 120mg/dl
2H >= 140mg/d
24-28weeks: OGTT
1H >= 180 mg/dl
2H >= 153-199mg/dl
Ian Blumer Eran Hadar David R. Hadden Lois JovanovičJorge H. Mestman M. Hassan Murad Yariv Yogev. Diabetes and
Pregnancy: An Endocrine Society Clinical Practice Guideline. https://doi.org/10.1210/jc.2013-2465
20.
21. Pregestational Diabetes should Be Planed
Intensive therapy before conception : HbA1c < 6.5% 7
Complication screening and treatment before conception7
Contraindication *
• Ischemic heart disease
• Untreated active proliferative retinopathy
• Renal insufficiency
• Severe gastroenteropathy
* Jovanovic L, et al. Mt Sinai J Med. 2009;76:269-280.
22. VI. The Consequent of Hyperglycemia In Fetus
and mother
HYPERGLYCEMIA gives teratogenic consequent and malformation. 8
HYPOGLCYEMIA doesn't give teratogenic consequent.
Complications are strongly interrelated with Glycaemia level in GDM &
HbA1c in Overt DM 8
Each Complications Risk relate to fetal development phase:8
• 8 weeks organogenesis high risk of teratogen
• > 10 weeks fetal development congenital malformation
25. Pre-gestational DM and fetal Complications
• Abortion 32% if HbA1c > 8% vs 15% in GP 8
• Congenital Malformation 3 time higher than GP
o Cardiac Malformation
o Coarctation of the Aorta
o Ventricalar septal defect
• Neurological malformation
o Spina bifida
o Hydrocephalic
o Anencephalic
• Kidney Malformation
☞ These lead to fetal and new born Death, Malformation in new born, and
Spontaneous abortion
26.
27. Pregnancy Aggravated Complications of DM
mother 9
• Retinopathy
• Nephropathy
• Neuropathy : is not affected by Pregnancy
• Develop to HBP
• Coronary Disease
• Infection
• Autoimmune Thyroid abnormalities
28.
29. Progression
• 41.3% recurrent GDM in second pregnancy
• 20% Impaired glucose tolerance in early postpartum
• 5%-10% of women with GDM develop T2D immediately postpartum*
• 35%-60% chance of T2D over next 10-20 years*
• Infant of GDM are risk
Obesity in young child
Type2 diabetes mellitus
Hypertension in young adult
* ADA. Diabetes Care. 2017;40(suppl 1):S114-S119. Inturrisi M, et al. Endocrinol Metab Clin N Am. 2011;40:703-26. Metzger BE, et al. Diabetes
Care. 2007;30:S251-S60. Committee on Obstetric Practice. ACOG. 2011;504:1-3. CDC. National Diabetes Fact Sheet 2011. CDC.
http://www.cdc.gov/diabetes/pubs/pdf/ndfs_2011.pdf. 2011.
30. VII. Management
Early Diagnosis
Early Intervention => Better Outcome
Intensive Glycemic Control and objective
Nutrition Therapy
Exercise
Pharmacotherapy
Glycaemia Monitoring and Objective
Obstetrical Management
Education
31. Objective Glycemic
Objective by ADA * and ACOG # glucose targets are
• FPG <95 mg/dL (5.3 mmol/L)
• One-hour PPG: <140 mg/dL (7.8 mmol/L)
• Two-hour PPG: <120 mg/dL (6.7 mmol/L)
* American Diabetes Association. 13. Management of Diabetes in Pregnancy: Standards of Medical Care in
Diabetes-2018. Diabetes Care. 2018;41(Suppl 1):S137
# Committee on Practice Bulletins—Obstetrics. ACOG Practice Bulletin No. 190: Gestational Diabetes Mellitus.
Obstet Gynecol. 2018;131(2):e49
32.
33. Monitoring & Follow Up
• Initial of diagnosis, patients asked to measure their own Glycemic 6
times. Before and 2H after each principal meals, at lease 4 times/days
at morning FPG and each post meal. 7
• Base to daily glycaemia profile, we can adjust dose of drug to achieve
Glycemic target.7
• Closely follow up after obtained minimum dose efficacy, because as
pregnancy develop, Insulin requirement also increase.
34. 3 meals time strictly with 2 snacks per day 10
Total Kcal:
• 30-35 Kcal/kg for women BMI
• 25 Kcal/kg for women overweigh and obesity BMI
All pregnancy are not recommended to eat less than
1600 kcal/ day
Avoid high glycemic index foods
Nutrition for GDM
☞ Most women with GDM (70 to 85 percent) can achieve
normoglycemia with nutritional therapy alone.* (ADA)
American Diabetes Association. 13. Management of Diabetes in Pregnancy: Standards of Medical Care in
Diabetes-2018 Diabetes Care. 2018;41(Suppl 1):S137
35.
36. Exercise In Pregnancy
After Obstetrical Consultation
Respect Contraindication
Recommendation by ADA
Moderate intensity Physical activities for 30mn daily
Moderate exercise as part of the treatment plan for women GDM and no
medical or obstetrical contraindications.
Colberg SR, Sigal RJ, Fernhall B, Regensteiner JG, Blissmer BJ, Rubin RR, Chasan-Taber L, Albright AL, Braun B, American
College of Sports Medicine, American Diabetes Association. Exercise and type 2 diabetes: the American College of Sports
Medicine and the American Diabetes Association: joint position statement. Diabetes Care. 2010;33(12):e147.
37. Choice of Drugs
• Pharmacotherapy will be placed after Nutrition therapy failed
• Insulin is the drug of choice
• No other Anti-hyperglycemic drug safer than Insulin
• Presentational DM underwent ADO should switch to Insulin
• ADO Metformin and Glyburide are reasonable alternative drugs when
patients refuse insulin.11
38.
39. How to start Insulin ?
• If FPG is high:
o Intermediate-acting insulin(NPH insulin),
o NPH is given before bedtime
o Initial dose of 0.2 unit/kg body weight is utilized
• If PPG are high:
o Rapid-acting insulin such as Actrapid or analogs such as Aspart, Lispro
o Give before meals
o 1 UI to drop 25-50mg/dl glucose based on PPG
o Insulin requirement = (Plasma glycemic – target /25)
40. • If Both FPG&PPG are high:
Basal bolus should start (50%bsal, 50%bolus)
Premix 2-3 injection based on Glycemic
Starting dose is
0.7 unit/kg < 12w
0.8 unit/kg for 13-26w
0.9 unit/kg for 26-36w
1.0 - 2.0unit/kg for weeks 36 to term
Insulin Pump is best Adaptation, but High cost and complexity
☞ No one fit all => should be flexible in Real World
43. Obstetrical Management
• Regular follow Up
• No any recommendation for Medical Abortion in GDM or DM
pregnancy
• Limit weigh gain
• Delivery plan : Cesarean or Natural labor ?
• Breath feed or formula feed ?
GDM will stop requiring insulin
DM Pregnancy still need drugs => can switch to ADO if formula feed
• Insulin and Glycemic during Labor
44.
45.
46. Education
• Explain to patient about complication and risk
• All GDM are Pregnancy with Risk
• Encourage them for strictly control Can Reduce Risk of complication
• Risk of Hypoglycemia
• Recognizing hypo and hyper and Management
47.
48.
49. During Labor
• GDM => Stop Insulin
• Monitor glycemic, objective 100mg/dl.12
• Pregestational DM => +/- Solution D10% and insulin IVSE 12
• Prevention Hypoglycemia and hypocalcemia in new born 12
Post Partum
• screen for DM at 6-12 weeks after delivery (FPG/OGTT)
• Diabetes => Treat
• Prediabetes => intervention (life style + exercise) => recheck every years
• Normal glycemic => recheck every 3 years
GDM, gestational diabetes mellitus.
Handelsman YH, et al. Endocr Pract. 2015;21(suppl 1):1-87.
ADA. Diabetes Care. 2017;40(suppl 1):S11-S24.
50. One step approach OGTT is preferable for Diagnosis
GDM
All Pregnancy should screen for GDM
Management of GDM , Objective
Insulin is Best Choice
Early management and Intensive glycemic control
provide better Outcome
Obstetrical follow Up Is important
Education : Recognize hypoglycemia and
management
51. 1. 3Setji TL, Brown AJ, Feinglos MN. Gestational Diabetes Mellitus. Clinical Diabetes. 2005. 23:17-24.
2. National Diabetes Information. Clearinghouse (NDIC). http://diabetes.niddk.nih.gov/DM/PUBS/statistics/#Gestational. 2011.
3. Elsevier Masson, 3e édition 2016, Endocrinologie, diabètologie et maladie métabolique, Glycorégulation chez la femme
enceinte à risque de diabète ou diabète avant la grossesse, page 432
4. Metzger BE, Buchanan TA. Summary and Recommendations of the Fifth International Workshop-Conference on Gestational
Diabetes Mellitus. Diabetes Care. 2005. 30 (Suppl. 2):S251-260.
5. medscap, GDM testing protocole, Indication, https://emedicine.medscape.com/article/2049380-overview#a2
6. van Leeuwen M, Louwerse MD, Opmeer BC, Limpens J, Serlie MJ, Reitsma JB, Mol BW. Glucose challenge test for detecting
gestational diabetes mellitus: a systematic review. BJOG. 2012 Mar;119(4):393-401. Epub 2012 Jan 20.
7. Elsevier Masson, 3e édition 2016, Endocrinologie, diabètologie et maladie métabolique,prise en charge du diabète connu avant la
grossesse ou diabète prégestationel, page 432
8. lsevier Masson, 3e édition 2016, Endocrinologie, diabètologie et maladie métabolique, risque pour le fœtus, page 433
9. lsevier Masson, 3e édition 2016, Endocrinologie, diabètologie et maladie métabolique,risque chez la mère diabètique, page 434
10. lsevier Masson, 3e édition 2016, Endocrinologie, diabètologie et maladie métabolique,alimentation chez DM prégestationel et
diabtète gestationel, page 437
11. uptodate, gestationel diabetes mellitus,pharmacotherapy, https://www.uptodate.com/contents/gestational-diabetes-mellitus-
glycemic-control-and-maternal-
prognosis?search=gdm&source=search_result&selectedTitle=1~84&usage_type=default&display_rank=1#H14
12. lsevier Masson, 3e édition 2016, Endocrinologie, diabètologie et maladie métabolique, surveillance obstétrical, page 438
REFFERENT
Editor's Notes
International Association of Diabetes and Pregnancy Study Groups (IADPSG)
RR relative risk: Risk/non risk , if RR>1 => risk , RR=1 non related , RR<1 protection
AR: Absoluted risk , is a certaine risk in a period (eg: GIT => DMT2 25% in 10 years)
ACOG:American College of Obstetricians and Gynecologists
ADA: american diabetes association
A: 100% in women controle in human , B not in human but animal experimental=no risk, C use in need : risk teratogen in animal no control in human
D: teratogen evidence in human use Benifet vs risk , X: contrindication