Question

A neonate presents with respiratory distress at birth, and a congenital diaphragmatic hernia (CDH) is suspected. What is the initial management?

• A. Bag-mask ventilation (BMV)
• B. Continuous positive pressure (CPH)
• C. Intubation
• D. Tracheostomy then BMV

Hint:

Absolute Rule in CDH Resuscitation: NEVER do Bag-Mask Ventilation! (Causes bowel distension $\rightarrow$ tension pneumothorax mediastinal shift). Immediate Intubation + Continuous Orogastric Decompression is required!

Answer 1

The Correct Option is C

Concept:
Congenital Diaphragmatic Hernia (CDH) is a developmental defect of the posterolateral diaphragm (most commonly the left-sided Bochdalek hernia), allowing herniation of abdominal viscera into the thoracic cavity.
This causes severe pulmonary hypoplasia, pulmonary arterial hypertension, and acute respiratory distress in the delivery room.
Explanation:
• When CDH is known antenatally or suspected immediately after birth (scaphoid abdomen, shifted heart sounds, respiratory distress), standard bag-mask ventilation (BMV) and non-invasive continuous positive airway pressure (CPAP) are strictly contraindicated.

• Bag-mask ventilation forces air into the stomach and herniated loops of intestine, causing progressive gastrointestinal distension. This acute bowel distension increases mass effect in the hemithorax, further compresses the already hypoplastic lungs, shifts the mediastinum, and severely compromises both ventilation and venous return.

• The mandatory initial management in the delivery room is immediate endotracheal intubation without prior bag-mask ventilation.

• Simultaneously, a large-bore orogastric/nasogastric tube (e.g., $10\text{ Fr}$ Replogle tube) must be placed to continuous low suction to decompress the stomach and prevent bowel distension.

• Gentle mechanical ventilation utilizing low peak inspiratory pressures (lung-protective strategy) is employed to prevent barotrauma to the hypoplastic contralateral lung.
Final Answer:
The mandatory initial step in managing a neonate with suspected congenital diaphragmatic hernia is immediate endotracheal intubation while strictly avoiding bag-mask ventilation.