Hirschsprung disease is a congenital condition affecting the colon due to missing nerve cells, which hinders waste movement and leads to bowel obstruction.
What is Hirschsprung Disease?
This condition occurs when some or all of the nerves fail to develop within the large intestine. Since these nerves are responsible for stimulating muscle contractions to move food and waste, their absence leads to stool accumulation in the colon, causing the healthy part of the intestine to swell due to the blockage.
Hirschsprung Disease Symptoms
The signs vary depending on the severity of the condition and the age of the patient:
- Newborns: The most prominent sign is the inability to pass stool within the first 48 hours of birth, or delayed passage of the first stool (meconium), along with potential green or brown vomiting and abdominal bloating.
- Older Children: Chronic constipation, gas, and abdominal swelling may appear, in addition to fatigue and growth failure.
- General Symptoms: Some infants may experience diarrhea or bothersome gas.
Causes and Risk Factors
The exact causes are not fully known, but they may be linked to genetic mutations or hereditary factors. The likelihood of developing Hirschsprung’s disease increases in the following cases:
- The newborn is male.
- A family history of the disease (an affected sibling).
- The presence of other congenital disorders, such as congenital heart diseases or Down syndrome.
Diagnosis and Treatment of Hirschsprung Disease
Diagnosis relies on clinical examination and a set of tests:
- Biopsy: Taking a sample of colon tissue and examining it microscopically to confirm the loss of nerve cells; this is the most accurate method.
- X-rays: Using contrast dye (such as barium) to highlight the difference between the narrow part of the intestine and the swollen part.
- Anorectal Manometry: A test to measure how the muscles around the rectum relax, often used for adults and older children.
Treatment is primarily surgical, aiming to remove the nerve-deficient section or bypass its path, performed via:
- Pull-through surgery: Pulling the healthy part of the colon and connecting it to the anus, often performed laparoscopically.
- Ostomy surgery: Performed in two stages for patients in severe cases; the intestine is connected to an opening in the abdomen (stoma) where stool exits into a temporary external bag, then the stoma is closed in a second operation after the colon heals.
Home Care and Complications
After surgery, children may face challenges such as constipation, diarrhea, or fecal incontinence. To improve the condition, it is recommended to:
- Gradually introduce fiber (fruits, vegetables, whole grains) into the diet.
- Increase water intake to compensate for potential absorption deficits after removing part of the colon.
- Encourage daily physical activity.
- Use laxatives only under medical supervision.
The most serious complication is “enterocolitis,” a severe intestinal infection that can be life-threatening and requires immediate medical intervention.
Frequently Asked Questions
What is Hirschsprung’s disease in babies?
It is a congenital defect in the colon resulting from the absence of nerve cells that control bowel movement, causing severe constipation and obstruction.
What causes Hirschsprung’s disease in infants?
While the exact cause is unknown, it is believed to be related to genetic mutations or hereditary factors that prevent nerve cells from developing in the gut.
Can the disease be diagnosed in adults?
Yes, although it usually appears in childhood, there are cases diagnosed for the first time in adulthood.
When to Visit a Doctor?
You should seek medical attention immediately if signs of enterocolitis appear, especially in the first year after surgery, including:
- Rectal bleeding.
- Fever and vomiting.
- Noticeable abdominal swelling.
- Severe diarrhea.
Disclaimer: This content is for informational purposes only and does not substitute for professional medical advice.
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Photo: Nutrition, Food Safety & Health, CC0 1.0, via flickr.com
approved by: Medica Health team