Recognizing Symptoms and Emergency Warning Signs

Identifying the signs of Congenital Tufting Enteropathy (CTE) early is crucial. Because the symptoms start so soon after birth, it is often a period of high stress for parents. Understanding what requires immediate medical attention is essential for managing your child’s health and safety.

The Hallmark: Persistent Diarrhea

The primary symptom of CTE is intractable diarrhea. This is not typical “diaper change” diarrhea; it is watery, frequent, and severe ^[1][2].

• Persistent Diarrhea Despite Fasting: Medical teams often observe that the diarrhea in CTE is so profound it continues even when an infant is fasting. Important Warning: Never change, pause, or stop oral, tube, or IV nutrition at home to “test” the diarrhea. Fasting an infant without direct medical supervision can rapidly cause dangerous dehydration and low blood sugar ^[1][3].
• Dehydration and Growth Faltering: Because the intestines cannot absorb water or nutrients, infants quickly become dehydrated and may experience poor weight gain (growth faltering)—meaning they are not gaining weight or growing at the expected rate ^[2][4].
• Other Digestive Signs: You may also notice your baby has a swollen or firm belly (abdominal distension) and may vomit frequently after attempts at feeding ^[5][6].

Differentiating EPCAM and SPINT2

While the diarrhea is the same in both types of CTE, the “syndromic” form (caused by the SPINT2 gene) often brings additional physical features that are not seen in the “isolated” form (caused by EPCAM) ^[1].

Isolated CTE (EPCAM)

In these cases, the symptoms are almost entirely limited to the digestive tract. The main challenge is managing the severe diarrhea and ensuring the baby receives enough nutrition through an IV ^[1][7].

Syndromic CTE (SPINT2)

If your baby has the SPINT2 mutation, doctors will look for other physical signs that may have been present since birth:

• Atresia: This refers to a blockage or narrowing of a body passage. Common examples in SPINT2-related CTE include choanal atresia (a blockage in the back of the nose) or anal atresia (a blockage of the anus) ^[1].
• Eye Abnormalities: Children may have issues such as corneal erosions (painful scratches on the surface of the eye) or other structural differences in the eye ^[8].
• Sodium Loss: This form is sometimes associated with Congenital Sodium Diarrhea, where the baby loses dangerous amounts of salt in their stool ^[9].

Red Flags: When to Seek Emergency Care

Because infants with CTE often rely on a central line for Parenteral Nutrition (PN), they face unique risks. You should have a low threshold for seeking emergency medical care if you notice any of the following “Red Flags.”

Central Line and Infection (Sepsis)

An infection in the bloodstream (sepsis) is a major risk for babies with central lines. Seek emergency care immediately if you notice ^[10][11]:

• Fever or Chills: A rectal temperature of 38.0°C (100.4°F) or higher—or the specific threshold given by your center—requires immediate contact with your team or evaluation at an emergency department ^[3]. Note that serious infections can sometimes occur without a fever in infants.
• Lethargy: If your baby is unusually sleepy, limp, or very difficult to wake up.
• Line Site Changes: Redness, warmth, swelling, or pus at the spot where the line enters the skin.
• Sudden Changes: If your baby suddenly looks very pale, is breathing fast, or stops acting like themselves.

Severe Dehydration and Electrolyte Crisis

Because fluid loss can happen so quickly, watch for signs that your baby’s internal chemistry is dangerously out of balance ^[12][5]:

• Reduced Wet Diapers: A significant drop in the number of wet diapers.
• Sunken Soft Spot: The soft spot on top of the baby’s head (fontanelle) appears dipped in or sunken.
• Crying Without Tears: A sign of advanced dehydration.
• Seizures or Tremors: These can be caused by dangerous shifts in salt or sugar levels ^[5].

Catheter Complications

If the central line becomes damaged, you must act quickly to prevent air from entering the bloodstream or to stop bleeding:

• Line Break or Leak: If the plastic tubing cracks or leaks, use the emergency clamp provided by your care team to clamp the line above the break, cover the site, and head to the hospital immediately.
• Accidental Removal: If the line is pulled out, do not push it back in or flush it. Apply firm pressure to the site with a sterile gauze if there is bleeding, cover it, and seek emergency help.