Management of neonatal posterolateral diaphragmatic hernia

Area of Science:

• Neonatal Surgery
• Pediatric Critical Care
• Cardiovascular Physiology

Background:

• Left posterolateral diaphragmatic hernia (CDH) is a severe congenital anomaly.
• Neonates with CDH often present with respiratory distress, severe acidosis, and hypoxia shortly after birth.
• Associated pulmonary hypoplasia complicates respiratory management.

Purpose of the Study:

• To evaluate the survival outcomes and management strategies for neonates with left posterolateral diaphragmatic hernia.
• To identify critical interventions for improving survival in this high-risk population.

Main Methods:

• A cohort of 13 neonates with left posterolateral diaphragmatic hernia were treated between 1978 and 1982.
• Immediate intubation, mechanical ventilation, and insertion of arterial/central venous lines were performed.
• Acidosis was managed with dopamine infusion (4-8 mcg/kg/min) to enhance perfusion.
• Continuous monitoring of hemodynamic and respiratory parameters was instituted.
• Surgical repair of diaphragmatic defects was performed using direct suture or Gore-Tex patches.
• Postoperative care included prolonged ventilation, inotropic support, and acid-base balance control.

Main Results:

• All 13 neonates experienced severe acidosis and hypoxia at presentation.
• Nine defects were repaired with sutures, and four with Gore-Tex patches.
• The left lung was hypoplastic in all patients.
• Postoperative ventilation and inotropic support were continued for 4-5 days.
• Eleven out of 13 neonates survived and were doing well at follow-up.

Conclusions:

• Effective management of acidosis and hypoxia is crucial for survival in neonates with left posterolateral diaphragmatic hernia.
• Dopamine infusion aids in enhancing peripheral and renal perfusion, addressing acidosis.
• Prolonged assisted ventilation is essential for managing hypoxia due to pulmonary hypoplasia.