Tracheomegaly among Extremely Preterm Infants on Prolonged Mechanical Ventilation

Area of Science:

• Neonatal Medicine
• Pediatric Pulmonology
• Medical Imaging

Background:

• Mechanical ventilation is crucial for preterm infants but can lead to airway complications.
• Tracheomegaly, or enlarged trachea, is a potential complication requiring accurate assessment.

Purpose of the Study:

• To establish the accuracy of tracheal measurements using phantom radiographs.
• To investigate the association between ventilation duration, infant weight, and tracheomegaly in preterm infants.

Main Methods:

• Utilized phantom radiographs to validate tracheal measurement accuracy.
• Enrolled preterm infants (≤29 weeks) into short (<7 days) and prolonged (≥28 days) ventilation groups.
• Categorized infants by weight: <1000g, 1000-1999g, and >2000g.
• Measured tracheal sizes on serial chest radiographs (CXRs).

Main Results:

• Established accuracy of tracheal measurements via phantom radiographs.
• Identified tracheomegaly in infants with prolonged ventilation.
• Observed this association specifically in preterm infants weighing ≥1000g.

Conclusions:

• Prolonged mechanical ventilation in preterm infants weighing ≥1000g is associated with tracheomegaly.
• Accurate tracheal size assessment is critical for managing ventilated preterm neonates.