Crying does not exacerbate gastroesophageal reflux in infants

Area of Science:

• Pediatric Gastroenterology
• Infant Physiology
• Reflux Disease Research

Background:

• Gastroesophageal reflux is common in infants.
• Behavioral states are hypothesized to influence reflux episodes.
• Previous research suggests sleeping reduces reflux.

Purpose of the Study:

• To investigate the effect of crying, awake non-crying, and sleeping states on infant gastroesophageal reflux.
• To compare reflux frequency and duration across different infant behavioral states.

Main Methods:

• Continuous esophageal pH monitoring in 48 infants (5-26 weeks old) after apple juice ingestion.
• Analysis of reflux data from 19 infants who experienced all three behavioral states (crying, awake non-crying, sleeping).
• Calculation of reflux frequency per hour and reflux duration percentage for each state.

Main Results:

• Sleeping significantly decreased reflux frequency compared to being awake (2 vs. 9 episodes/hour).
• Crying was associated with decreased reflux frequency (11 episodes/hour) compared to being awake without crying (17 episodes/hour).
• Crying also reduced the duration of reflux events (21% of crying time) compared to non-crying awake time (41%).

Conclusions:

• Sleeping reduces infant gastroesophageal reflux frequency.
• Infant crying, contrary to prior assumptions, appears to decrease rather than increase reflux frequency and duration.
• Crying does not worsen reflux in infants diagnosed with gastroesophageal reflux disease.