Pregnancy and Diabetes Flashcards
Maternal Hyperglycemia during pregnancy … for the fetus
Maternal Hyperglycemia during pregnancy is bad / very bad for the Fetus
Why does Diagnosing Maternal Hyperglycemia matter?
- It affords an opportunity to prevent
- … in the offspring “from the uterus to the …”
- An exacerbation of the … & … epidemic
- Future … in the mother
- It affords an opportunity to Prevent
- –Morbidity In the offspring “from the uterus to the grave”
- –An exacerbation of the obesity & Type 2 diabetes epidemic
- –Future Type 2 diabetes in the mother
Hyperglycemia of Pregnancy
- At Ante Natal Care booking there are 2 groups:
- Women with …
- Women with …
* Known …
* Unknown … or …
- Women with …
- At ANC booking there are 2 groups
- Women with Normal Glucose tolerance
- Women with Abnormal Glucose tolerance
* Known Diabetes
* Unknown Diabetes or IGT (impaired glucose tolerance)
- Women with Abnormal Glucose tolerance
Hyperglycaemia during Pregnancy - Possible Scenarios
- Pre-… Hyperglycaemia
- Type 1 Diabetes
- Type 2 Diabetes
- Known
- Unknown
- … Diabetes
- … (IGT)
- “… Diabetes” (GDM)
- Any newly found Abnormal GTT after the … trimester of pregnancy ( i.e. Diabetes or IGT )
- Pre-gestational Hyperglycaemia
- –Type 1 Diabetes
- –Type 2 Diabetes
- Known
- Unknown
- Monogenic Diabetes
- Impaired Glucose Tolerance (IGT)
- “Gestational Diabetes” (GDM)
- Any newly found Abnormal GTT after the 1st trimester of pregnancy ( i.e. Diabetes or IGT )
What is “Gestational Diabetes” (GDM)? - Practical Definitions
- WHO criteria ( and NICE)
- Diabetes OR Impaired Glucose Tolerance
- Fasting glucose =/ > … mmol/l
- 2 hour GTT glucose =/ > … mmol/l
- Diabetes OR Impaired Glucose Tolerance
- International Association of Diabetes & Pregnancy Study Group (IADPSG) criteria
- Outcome based (HAPO study)
- WHO criteria ( and NICE)
- Diabetes OR Impaired Glucose Tolerance
- Fasting glucose =/ > 5.6 mmol/l
- 2 hour GTT glucose =/ > 7.8 mmol/l
- Diabetes OR Impaired Glucose Tolerance
- International Association of Diabetes & Pregnancy Study Group (IADPSG) criteria
- Outcome based (HAPO study)
WHO criteria for Gestational Diabetes:
- Fasting glucose =/ > … mmol/l
- 2 hour GTT glucose =/ > … mmol/l
- Fasting glucose =/ > 5.6 mmol/l
- 2 hour GTT glucose =/ > 7.8 mmol/l
International Association of Diabetes & Pregnancy Study Group (IADPSG) criteria - Gestational Diabetes
- Outcome based (HAPO study)
- What numbers in a glucose … test were associated with increased … for the fetus
- Outcome based (HAPO study)
- What numbers in a glucose tolerance test were associated with increased risk for the fetus
Hyperglycaemia of Pregnancy IADPSG Criteria
- 75 g Glucose Tolerance test
- Fasting … mmol/l
- 1 hour … mmol/l
- 2 hours … mmol/l
- Diagnose if 1 or more abnormal
- 75 g Glucose Tolerance test
- Fasting 5.1 mmol/l
- 1 hour 10.0 mmol/l
- 2 hours 8.5 mmol/l
- Diagnose if 1 or more abnormal
Hyperglycaemia in Pregnancy : The Problem
- Any degree of Maternal Hyperglycaemia during pregnancy can cause serious problems for the fetus
Hyperglycemia during pregnancy - Consider management
- .. pregnancy
- .. pregnancy
- .. pregnancy
- Before pregnancy
- During pregnancy
- After pregnancy
Stages of Pregnancy - Simple Endocrinologist’s view!
- 1st Trimester
- O…
- Carefully design the … components
- Avoid Mistakes (T..)
- Construct & programme the …
- O…
- 2nd Trimester
- Further … development & linkage
- 3rd Trimester
- Accelerated …
- 1st Trimester
-
Organogenesis
- Carefully design the essential components
- Avoid Mistakes ( Teratogenesis)
- Construct & programme the placenta
-
Organogenesis
- 2nd Trimester
- Further complex development & linkage
- 3rd Trimester
- Accelerated growth
Maternal Metabolism changes as Pregnancy progresses
- Early pregnancy = Facilitated A…
- Increased Insulin …
- Glucose concentration slightly …
- … maternal energy stores
- Later Pregnancy = Facilitated C…
- Increased Insulin …
- Increased … passage of nutrients
- -> Rapid fetal …
- Early pregnancy = Facilitated Anabolism
- Increased Insulin sensitivity
- Glucose concentration slightly lower
- Increased maternal energy stores
- Later Pregnancy = Facilitated Catabolism
- Increased Insulin resistance
- Increased transplacental passage of nutrients
- -> Rapid fetal growth
Maternal Hyperglycaemia - How does this mess with the system?
- 1st Trimester
- Increased Fetal …
- Fuel Mediated T…
- Abnormal … programming & development
- Increased risk of Pre-…
- Excessive … transport
- Increased Fetal …
- Late Second & 3rd Trimester
- Excessive … deposition
- Adverse Fetal … ( epigenetics )
- 1st Trimester
- Increased Fetal abnormalities
- Fuel Mediated Teratogenesis
- Abnormal placental programming & development
- Increased risk of Pre-eclampsia
- Excessive glucose transport
- Increased Fetal abnormalities
-
Late Second & 3rd Trimester
- Excessive fat deposition
- Adverse Fetal programming ( epigenetics )
First Trimester Maternal Hyperglycaemia leads to fetal malformation- , such as:
- Hydro…
- Meningo…
- … … in Congenital Heart Disease
- Single … and Sacral …
- … Agenesis
- Hydrocephalus
- Meningomyelocoele
- Central Cyanosis in Congenital Heart Disease
- Single Ventricle and Sacral Dysgenesis
- Renal Agenesis