What is the pathophysiology of tracheoesophageal fistula?

What is the pathophysiology of tracheoesophageal fistula?

Pathophysiology. TE fistulas occur due to abnormal septation of the caudal foregut during the fourth and fifth weeks of embryonic development. Normally, the trachea forms as a diverticulum of the foregut and develops a complete septum that separates the esophagus from the trachea.

What causes congenital tracheoesophageal fistula?

Heart problems (such as ventricular septal defect, tetralogy of Fallot, or patent ductus arteriosus) Kidney and urinary tract problems (such as horseshoe or polycystic kidney, absent kidney, or hypospadias) Muscular or skeletal problems.

What is congenital tracheoesophageal fistula?

Tracheoesophageal fistula (TEF) is a common congenital anomaly of the respiratory tract, with an incidence of approximately 1 in 3500 to 1 in 4500 live births [1-4]. Classification — TEF typically occurs with esophageal atresia (EA). EA and TEF are classified according to their anatomic configuration (figure 1) [5].

What is the most common complication of tracheoesophageal fistula?

The most commonly occurring complications are anastomosis leakage, tension pneumothorax, and sepsis [7,8]. Moreover, the long term complications of the surgery include esophageal strictures, reoccurrence of TEF, tracheomalacia, gastroesophageal reflux, dysphagia, recurrent pneumonia, and cough.

What are the 5 types of tracheoesophageal fistula?

Esophageal atresia is closely related to tracheo-esophageal fistula and can be divided into1:

  • type A: isolated esophageal atresia (8%)
  • type B: proximal fistula with distal atresia (1%)
  • type C: proximal atresia with distal fistula (85%)
  • type D:
  • type E: isolated fistula (H-type) (4%)

What is COngenital tracheoesophageal fistula without atresia?

COngenital tracheoesophageal fistula (TEF) without esophageal atresia is commonly referred to as the “H- type” or “N-type” TEF and forms the E classification as described by Gross.” In a survey by the American Academy of Pediatrics, the incidence of H-type TEF was 4.2% among the 1,058 cases of TEF reviewed.!

Is tracheoesophageal fistula life threatening?

Tracheoesophageal fistula and esophageal atresia are life-threatening problems. They need to be treated right away. If these problems are not treated: Your child may breathe saliva and fluids from the stomach into the lungs.

What are the symptoms of tracheoesophageal fistula?

Symptoms of Tracheoesophageal Fistula and Esophageal Atresia

  • Coughing or choking while nursing or taking a bottle.
  • Frothing or drooling from the mouth.
  • Vomiting.
  • Difficulty breathing while feeding.
  • Blue-tinged skin while feeding.
  • An unusually rounded abdomen.
  • Failure to gain weight.

How do you rule out a tracheoesophageal fistula?

The diagnosis of EA/TEF is confirmed by attempting to pass a nasogastric tube (a tube that runs from the nose to the stomach via the esophagus) down the throat of infants who have require excessive suction of mucus, or are born to mothers with polyhydramnios, or, if earlier signs are missed have difficulty feeding.