Prone position and reduced thoracoabdominal asynchrony in preterm newborns

Area of Science:

• Neonatal Physiology
• Respiratory Medicine
• Pediatric Pulmonology

Background:

• Premature infants recovering from respiratory distress syndrome often experience breathing difficulties.
• Thoracoabdominal asynchrony, a disruption in coordinated chest and abdominal movement, can complicate respiratory recovery.
• Optimizing infant positioning is crucial for improving respiratory mechanics and outcomes.

Purpose of the Study:

• To evaluate the impact of prone versus supine positioning on breathing patterns.
• To assess thoracoabdominal motion and its synchrony during spontaneous breathing in premature infants.
• To determine the effect of positioning on peripheral oxygen saturation in recovering neonates.

Main Methods:

• A quasi-experimental study involving 12 premature infants (>1,000 g) recovering from respiratory distress syndrome.
• Respiratory inductive plethysmography was used to measure breathing pattern variables and thoracoabdominal motion.
• Pulse oximetry monitored peripheral oxygen saturation; data were analyzed using paired t tests or Wilcoxon tests (p < 0.05).

Main Results:

• The prone position led to significant reductions in the labored breathing index and various phase relations, indicating improved thoracoabdominal synchrony.
• Specifically, phase relation in inspiration, expiration, and total breath showed significant decreases in the prone position.
• No significant differences were observed in other breathing pattern variables or peripheral oxygen saturation between prone and supine positions.

Conclusions:

• Prone positioning effectively reduces thoracoabdominal asynchrony in premature infants recovering from respiratory distress syndrome.
• This positional change does not adversely affect spontaneous breathing patterns or peripheral oxygen saturation.
• Prone positioning is a beneficial non-invasive strategy to improve respiratory mechanics in this vulnerable population.