Diabetes Pregnancy

I’ve been diabetic since I was 10, I’ll be 17 next month.

It’s not something I’m planning soon, but want to know.
What problems or effects can a diabetic have during pregnancy?
Also, can she have natural childbirth or C-section only?

Thanks

Tags: Diabetes, effects, Pregnancy

What is diabetes?

Diabetes is a condition where sufficient amounts of insulin are either not produced or the body is unable to use the insulin that is produced. Insulin is the hormone that allows glucose to enter the cells of the body to provide fuel. When glucose cannot enter the cells, it builds up in the blood and the body’s cells literally starve to death.

What are the different types of diabetes?

There are three basic types of diabetes including:

type 1 diabetes – also called insulin dependent diabetes mellitus (IDDM), type 1 diabetes is an autoimmune disorder in which the body’s immune system destroys, or attempts to destroy, the cells in the pancreas that produce insulin. Type 1 diabetes accounts for 5 to 10 percent of all diagnosed cases of diabetes in the US. Type 1 diabetes usually develops in children or young adults, but can start at any age.
type 2 diabetes – a metabolic disorder resulting from the body’s inability to make enough, or to properly use, insulin. It used to be called non-insulin-dependent diabetes mellitus (NIDDM) and usually develops after age 45.
gestational diabetes – a condition in which the blood glucose level is elevated and other diabetic symptoms appear during pregnancy in a woman who has not previously been diagnosed with diabetes.

Diabetes is a serious disease, which, if not controlled, can be life threatening. It is often associated with long-term complications that can affect every system and part of the body. Diabetes can, among other things, contribute to eye disorders and blindness, heart disease, stroke, kidney failure, amputation, and nerve damage.

What happens with diabetes and pregnancy?

During pregnancy, the placenta supplies a growing fetus with nutrients and water, as well as produces a variety of hormones to maintain the pregnancy. In early pregnancy, hormones can cause increased insulin secretion and decreased glucose produced by the liver, which can lead to hypoglycemia (low blood glucose levels). In later pregnancy, some of these hormones (estrogen, cortisol, and human placental lactogen) can have a blocking effect on insulin, a condition called insulin resistance.

As the placenta grows, more of these hormones are produced, and insulin resistance becomes greater. Normally, the pancreas is able to make additional insulin to overcome insulin resistance, but when the production of insulin is not enough to overcome the effect of the placental hormones, gestational diabetes results or there may be worsening of pre-existing diabetes.

Why is diabetes a concern in pregnancy?

Diabetes in pregnancy can have serious consequences for the mother and the growing fetus. The severity of problems often depends on the degree of the mother’s diabetic disease, especially if she has vascular (blood vessel) complications and poor blood glucose control. Diabetes that occurs in pregnancy is often listed according to White’s classification:

Gestational diabetes – when a mother who does not have diabetes develops a resistance to insulin because of the hormones of pregnancy. Non-insulin dependent – Class A1
Insulin dependent – Class A2

Pre-existing diabetes – women who already have insulin-dependent diabetes and become pregnant. Class B – diabetes developed after age 20, have had the disease less than 10 years, no vascular complications.
Class C – diabetes developed between age 10 and 19 or have had the disease for 10-19 years, no vascular complications.
Class D – diabetes developed before age 10, have had the disease more than 20 years, vascular complications are present.
Class F – diabetic women with kidney disease called nephropathy.
Class R – diabetic women with retinopathy (retinal damage).
Class T – diabetic women who have undergone kidney transplant.
Class H – diabetic women with coronary artery or other heart disease.

It is very important for a mother to maintain very close control of her diabetes during pregnancy. Generally, the poorer the control of blood glucose and the more severe the disease and complications, the greater the risks for the pregnancy.

Maternal complications of diabetes on a pregnancy:

Complications for the mother depend on the degree of insulin need, the severity of complications associated with diabetes, and control of blood glucose.

Most complications occur in women with pre-existing diabetes and are more likely when there is poor control of blood glucose. Women may require more frequent insulin injections. They may have very low blood glucose levels, which can be life threatening if untreated, or they may have ketoacidosis, a condition that results from high levels of blood glucose. Ketoacidosis may also be life threatening if untreated. It is not clear whether pregnancy worsens diabetic related blood vessel damage and retinal changes, or if it causes changes in kidney function.

Complications for fetus and baby:

Infants of mothers with diabetes are at greater risk for several problems, especially if blood glucose levels are not carefully controlled, including the following:

birth defects
Birth defects are more likely in infants of diabetic mothers, especially insulin-dependent women who may have two to six times greater the risk of major birth defects. Some birth defects are serious enough to cause fetal death. Birth defects usually originate sometime during the first trimester of pregnancy. They are more likely in women with pre-existing diabetes, who may have changes in blood glucose during that time. Overall, major birth defects may occur in about 5 to 10 percent of infants born to insulin-dependent women. Major birth defects that may occur in infants of diabetic mothers include the following: heart and connecting blood vessels
brain and spine abnormalities
urinary and kidney
digestive tract

stillbirth (fetal death)
Stillbirth is more likely in pregnant women with diabetes. The fetus may grow slowly in the uterus due to poor circulation or other conditions, such as high blood pressure, that can complicate diabetic pregnancy. The exact reason stillbirths occur with diabetes is unknown. The risk of stillbirth increases in women with poor blood glucose control and with blood vessel changes.
macrosomia
Macrosomia refers to a baby that is considerably larger than normal. All of the nutrients the fetus receives come directly from the mother’s blood. If the maternal blood has too much glucose, the pancreas of the fetus senses the high glucose levels and produces more insulin in an attempt to use this glucose. The fetus converts the extra glucose to fat. Even when the mother has gestational diabetes, the fetus is able to produce all the insulin it needs. The combination of high blood glucose levels from the mother and high insulin levels in the fetus results in large deposits of fat that causes the fetus to grow excessively large.
birth injury
Birth injury may occur due to the baby’s large size and difficulty being born.
hypoglycemia
Hypoglycemiais low levels of blood sugar in the baby immediately after delivery. This problem occurs if the mother’s blood sugar levels have been consistently high causing the fetus to have a high level of insulin in its circulation. After delivery, the baby continues to have a high insulin level, but no longer has the high level of sugar from the mother, resulting in the newborn’s blood sugar level becoming very low. The baby’s blood sugar level is checked after birth, and if the level is too low, it may be necessary to give the baby glucose intravenously.
respiratory distress (difficulty breathing)
Too much insulin or too much glucose in a baby’s system may delay lung maturation and cause respiratory difficulties in babies. This is more likely if they are born before 37 weeks of pregnancy.
How is diabetes diagnosed?

Women with diabetes before pregnancy have already been diagnosed. Depending on the severity of their disease, they may need continued care by their medical physician along with their obstetrician.

Nearly all non-diabetic pregnant women are screened for diabetes between 24 and 28 weeks of pregnancy. In addition to a complete medical history and physical examination, a glucose screening test is given, which involves drinking a glucose drink followed by measurement of glucose levels after a one-hour interval.

If this test shows an increased blood sugar level, a three-hour glucose tolerance test will be performed after a few days of following a special diet.

If results of the second test are in the abnormal range, diabetes is diagnosed.

Treatment for diabetes:

Specific treatment for diabetes will be determined by your physician based on:

your age, overall health, and medical history
extent of the disease
your tolerance for specific medications, procedures, or therapies
expectations for the course of the disease
your opinion or preference

Treatment for diabetes focuses on keeping blood glucose levels in the normal range. Treatment may include:

special diet with controlled amounts of carbohydrate
exercise
blood glucose monitoring
insulin injections
Managing diabetes during the pregnancy:

Special fetal testing and monitoring may be needed for pregnant diabetics, especially those who are taking insulin (because of the increased risks for stillbirth). These tests can include the following:

fetal movement counting – counting the number of movements or kicks in a certain period of time, and watching for a change in activity.
ultrasound – a diagnostic imaging technique which uses high-frequency sound waves and a computer to create images of blood vessels, tissues, and organs. Ultrasounds are used to view internal organs as they function, and to assess blood flow through various vessels.
nonstress testing – a measurement of the fetal heart rate in response to the fetus’ movements.
biophysical profile – a test that uses the nonstress test and ultrasound to examine fetal movements, heart rate, and amniotic fluid amounts.
Doppler flow studies – a type of ultrasound which uses sound waves to measure blood flow.

Infants of diabetic mothers may be delivered vaginally or by cesarean, depending on the estimated fetal weight and the mother’s health. Because infants of diabetic mothers tend to be large compared to fetuses of the same gestational period, they may need to be delivered a few weeks early. This can often help prevent difficulties in labor and birth that can happen when a baby is very large. An amniocentesis may be performed in the last few weeks of pregnancy to check the amniotic fluid for fetal lung maturity. If the lungs are mature, some mothers may have labor induced or a cesarean delivery.

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Tags: Diabetes, effects, Pregnancy

Maternal health and fetal complications are at a much greater risk in women with diabetes who are pregnant. Even the stress of a pregnancy can bring about gestational diabetes, which is a form of glucose intolerance that begins during the pregnancy and resolves itself after the birth of the baby. Whether there is preexisting diabetes or gestational diabetes there is an increased risk of fetal congenital defects and death from hyperglycemia, or abnormally high blood sugar, which must be controlled. Any woman with diabetes that is pregnant should get some form of nutritional counseling from a registered dietician.

There are many changes that occur during a pregnancy that can have detrimental effects on controlling the diabetes and the use of insulin. The placenta produces some hormones and enzymes that reduce the effectiveness of insulin. Insulin from the mother does not cross the placenta but blood glucose will. If too much blood glucose crosses over to the baby the baby’s pancreas will increase insulin production. This increase in insulin leads to a condition that is typical for women with diabetes, macrosomia, or big baby syndrome. Newborns of mother with either form of diabetes can also suffer from respiratory problems, hypocalcemia, hypoglycemia, hypokalemia, or jaundice.

Medical nutrition therapy needs to be individualized based on the mother’s weight and height. The diet plan used by a pregnant woman should include adequate calories and nutrients to meet the needs of both mother and fetus and should be consistent with established maternal blood glucose goals. The impact of meals and snacks on blood glucose levels must be tracked with self monitoring and should be done a minimum of four times a day.

Planning and commitment is required for any pregnant woman with diabetes to have a successful pregnancy. Achieving and maintaining tight blood glucose control before conception and during the first trimester is of paramount importance because this is when most fetal malformation occurs. The best time for any woman with diabetes who is attempting to become pregnant is before conception.

During the second and third trimesters the need for insulin increases because of increased blood glucose levels caused by the increased production of hormones associated with pregnancy that decrease the effectiveness of insulin.

A diabetic pregnancy will require a more focused approach to the diabetic diet plan each day of the pregnancy. Special considerations need to be made for food cravings and nausea during the early weeks of a pregnancy. All meal plans need to be individualized to each woman and need to evolve throughout the pregnancy as insulin and nutritional needs change.

Tags: Diabetes, effects, Pregnancy