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Alternative Names Return to topHernia - diaphragmatic; Congenital hernia of the diaphragm
Definition Return to top
A diaphragmatic hernia is a birth defect in which there is an abnormal opening in the diaphragm, the muscle that helps you breathe. The opening allows part of the abdominal organs to move into the chest area.
Causes Return to top
A diaphragmatic hernia is caused by the improper joining of structures during fetal development. As a result, the abdominal organs such as the stomach, small intestine, spleen, part of the liver, and the kidney appear in the chest cavity. The lung tissue on the affected side is thus not allowed to completely develop.
Congenital diaphragmatic hernia is seen in 1 out of 2,200 to 5, 000 live births. Most affect the left side. Having a parent or sibling with the condition slightly increases your risk.
Symptoms Return to top
Severe breathing difficulty usually develops shortly after the baby is born, because of ineffective movement of the diaphragm and crowding of the lung tissue, which causes collapse. The reason why this occurs is not known.
Other symptoms include:
Exams and Tests Return to top
The pregnant mother may have excessive amounts of amniotic fluid. Fetal ultrasound may show abdominal contents in the chest cavity.
Examination of the infant shows:
A chest x-ray may show abdominal organs in chest cavity.
Treatment Return to top
A diaphragmatic hernia is an emergency that requires surgery. Surgery is done to place the abdominal organs into the proper position and repair the opening in the diaphragm.
The infant will need breathing support until he or she recovers from surgery. Some infants are placed on a heart/lung bypass machine, which gives the lungs a chance to recover and expand after surgery.
If a diaphragmatic hernia is diagnosed during pregnancy (around 24 to 28 weeks), fetal surgery may be considered.
Outlook (Prognosis) Return to top
Congenital diaphragmatic hernia is a very serious disorder. The outcome depends upon the development of the lung tissue.
However, with advances in neonatal and surgical care, survival is now greater than 80%.
A poor prognosis is associated with extra amniotic fluid during pregnancy, presence of the fetal stomach in the chest, and distress in the first few hours of life. Infants who survive may have long-term complications including persistent pulmonary hypertension, recurrent lung infections, and gastrointestinal problems.
Possible Complications Return to top
When to Contact a Medical Professional Return to top
Go to the emergency room or call the local emergency number (such as 911). A diaphragmatic hernia is a surgical emergency.
Prevention Return to top
There is no known prevention.Update Date: 7/26/2007 Updated by: Daniel Rauch, MD, FAAP, Director, Pediatric Hospitalist Program, New York University School of Medicine, New York, NY. Review provided by VeriMed Healthcare Network.