Diabetes
and Pregnant Women
By Jeremy Parker
There are two important issues regarding diabetes and pregnancy.
The first concerns the diabetic who wants to conceive and carry
a healthy baby to full term and delivery (pre-existing diabetes).
And the second issue involves the development of gestational diabetes
in a woman who previously showed no sign of the disease.
For the first issue:
It is important that any woman with pre-existing diabetes, who either
wants to conceive or finds herself pregnant, strictly control her
glucose levels, this is particularly important in the early months
of pregnancy. The risks of serious birth defects are increased by
poor control of pre-existing diabetes, and it is also suggested
to be a major cause of miscarriage.
Those women who develop
gestational diabetes usually have no increased risk for birth defects
although it is important that glucose levels be carefully monitored
and controlled to reduce the risk of stillbirth.
All female diabetics
who are pregnant tend to deliver much larger babies than the average.
It is known that the babies grow larger because some of the additional
sugar from the mother passes through the umbilical cord into the
blood stream of the baby. Insulin then converts this sugar into
fat cells. In many cases, these large babies have to be delivered
by caesarian section as they are too large for a vaginal delivery.
Provided diabetes
is properly controlled there is no reason why diabetic women should
not enjoy uncomplicated pregnancies and deliver healthy babies.
It is when the diabetes is not controlled that complication can
happen. Unfortunately, these complications can lead to miscarriage,
high blood pressure, premature delivery, and stillbirth.
Pregnant women who have
pre-existing diabetes are given a blood test to measure the level
of glycosylated haemoglobin before conception. This blood test provides
an accurate measure of how well glucose levels have been controlled
in the preceding months, and it can indicate the safest time to
conceive. This test can also be used throughout the pregnancy to
measure how well the diabetes is being controlled.
The current recommendation
is for all women to take folic acid before conceiving to avoid the
baby developing with neural tube defects. This advice is particularly
important for diabetic women as diabetes can increase the risk of
this type of birth defect.
Currently, oral medications
used to control type 2 diabetes are not approved for use during
pregnancy. For this reason, women who are using these drugs will
need to switch to insulin before conceiving and during pregnancy.
Most pregnant women are
tested for gestational diabetes at some stage between the 24th and
28th week of pregnancy. Those who develop this gestational diabetes
normally discover that blood glucose levels return to normal after
the birth of the baby.
Moderate exercise is
believed to help cells make better use of available insulin and
is recommended during pregnancy.
Blood sugar levels must
be monitored carefully during pregnancy as insulin requirements
can vary significantly from those required before conception. Urine
can also be checked for ketones as the presence of these can be
an indication that the diabetes is not being adequately controlled.
For both the safety of
the mother and the baby, it is important that all precautions be
taken when diabetes is found in the mother. Failure to do so can
lead to devastating problems.
For more information
and resources on type 1 and type 2 diabetes, symptoms, treatment,
diet, diabetes research, facts and solutions, visit Jeremy Parker's
complete reference guide on Diabetes.
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