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Well, just like with nongestational diabetes, gdm affects the nerves and perfusion. When blood sugars are not controlled in a gdm patient, she runs the risk of macrosomnia which puts her newborn at serious risk for blood sugar problems during the neonate period. Because of perfusion issues, the placenta can suffer causing serious issues for baby.
Google is your friend
Gestational diabetes Complications - Diseases and Conditions - Mayo Clinic
Also, uncontrolled high blood sugar in early pregnancy during organogenesis can lead to severe issues in fetal development and miscarriage, as another poster mentioned.
That is why our facility has a policy wherein we do an early 1-hour GTT for certain "high risk" populations. This is done at the first prenatal visit, with all of her other prenatal labs. Those high risk populations are:
GDM in previous pregnancy
Previous macrosomic infant
Mother 35 or over
Pre-pregnancy BMI of over 29
Black, Native American, Pacific Island or Latina race/ethnicity
First degree relative with DM
Which means that I do a early 1-hour on about 98% of our OB patients.
In addition to Esme's link, here is a link that outlines specifically the risks/complications faced by IDMs (infants of diabetic mothers):
http://www.ucsfbenioffchildrens.org/pdf/manuals/51_DiabMother.pdf
Larger for gestational age, which could lead to complications during labor, ie they wont fit through the birth canal so the dr will have to break their shoulder to deliver the baby or c-sec, they can develop a condition in which they have way too many red blood cells (forgot what that is called), They are at much greater risk of being hypoglycemic immediately after birth which is dangerous, at risk for obesity later in life, and yes google is your friend.
caregiver1977
494 Posts
What are some of the worse complications you all have seen when a woman does not control her gestational diabetes? What is the worse that can happen?
I am really curious about gestational diabetes complications; not complications of a woman who had diabetes before she conceived.