Overview

Congenital diaphragmatic hernia (CDH) is a birth defect that occurs during fetal development. It means that the diaphragm — the muscle barrier that separates a fetus’s abdominal cavity from its chest cavity — is not fully formed or strong enough to keep the two cavities separate. That means organs can pass between them. When an organ passes through a muscle barrier, it’s called a hernia.

When a diaphragmatic hernia occurs during fetal development, it affects the way the fetus’s body forms. Its abdominal organs — the stomach, intestines, liver, gallbladder, pancreas and spleen – can shift upward into the chest cavity while everything is still developing. When this happens, the extra organs in the fetus’s chest can end up crowding its lungs and prevent them from growing normally.

How serious is congenital diaphragmatic hernia?

CDH can be very serious. Babies born with this condition tend to have small, underdeveloped lungs with weak blood vessels. This can cause low blood oxygen levels and breathing difficulties at birth. They will also have high blood pressure in their lungs, which puts stress on their heart. These babies will need critical care at birth to stabilize their condition. They may need supportive care throughout their lives.

How common is congenital diaphragmatic hernia?

Congenital diaphragmatic hernia affects 1 in 2,500 – 3,500 live births. About half of these are isolated anomalies that occur without any other conditions. The other half occur together with other genetic disorders, such as congenital heart defects and Down syndrome. If you have prenatal care during your pregnancy, your doctor will be able to see these conditions and prepare for them before you give birth.

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Symptoms

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Complications

Blood clots are a dangerous complication of atrial fibrillation (AFib). Blood clots can lead to stroke.
The risk of stroke from AFib increases as you grow older. Other health conditions also may increase the risk of a stroke due to AFib. These conditions include:
  • High blood pressure.
  • Diabetes.
  • Heart failure.
  • Some types of heart valve disease.
Blood thinners are commonly prescribed to prevent blood clots and strokes in people with atrial fibrillation.

Prevention

Healthy lifestyle choices can reduce the risk of heart disease and may prevent atrial fibrillation (AFib). Here are some basic heart-healthy tips:
  • Control high blood pressure, high cholesterol and diabetes.
  • Don't smoke or use tobacco.
  • Eat a diet that's low in salt and saturated fat.
  • Exercise at least 30 minutes a day on most days of the week unless your health care team says not to.
  • Get good sleep. Adults should aim for 7 to 9 hours daily.
  • Maintain a healthy weight.
  • Reduce and manage stress.


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