Which of the following is the least appropriate technique for induction of general anesthesia in a newborn undergoing surgical repair of a tracheoesophageal fistula (TEF)?

Which of the following is the least appropriate technique for induction of general anesthesia in a newborn undergoing surgical repair of a tracheoesophageal fistula (TEF)?

• A. Awake tracheal intubation
• B. Inhalation induction with spontaneous ventilation and tracheal intubation
• C. Inhalation induction using positive-pressure bag and mask ventilation and tracheal intubation
• D. Rapid IV induction and tracheal intubation

Answer: (C)

The main idea is to avoid forcing air through the tracheoesophageal fistula before the airway is secured. In TEF, there’s a direct connection between the trachea and the esophagus, so applying positive-pressure ventilation with a bag and mask can push air into the stomach via the fistula. This leads to gastric distension, potential regurgitation, and increased risk of aspiration, all of which complicate ventilation and the surgical repair. Techniques that maintain spontaneous ventilation during induction or that secure the airway quickly without relying on positive-pressure ventilation are preferred. Awake tracheal intubation avoids forcing air through the fistula while you establish airway control, and inhalation induction with spontaneous ventilation follows the same principle. Rapid IV induction and intubation also aims to minimize time with ventilation that could traverse the fistula, though it may be challenging in a newborn. Because delivering ventilation with positive pressure before securing the airway past the fistula is the scenario that most clearly risks gastric distension and aspiration, it is the least appropriate option.

The main idea is to avoid forcing air through the tracheoesophageal fistula before the airway is secured. In TEF, there’s a direct connection between the trachea and the esophagus, so applying positive-pressure ventilation with a bag and mask can push air into the stomach via the fistula. This leads to gastric distension, potential regurgitation, and increased risk of aspiration, all of which complicate ventilation and the surgical repair. Techniques that maintain spontaneous ventilation during induction or that secure the airway quickly without relying on positive-pressure ventilation are preferred. Awake tracheal intubation avoids forcing air through the fistula while you establish airway control, and inhalation induction with spontaneous ventilation follows the same principle. Rapid IV induction and intubation also aims to minimize time with ventilation that could traverse the fistula, though it may be challenging in a newborn. Because delivering ventilation with positive pressure before securing the airway past the fistula is the scenario that most clearly risks gastric distension and aspiration, it is the least appropriate option.