Gastro-oesophageal reflux in preterm infants

Area of Science:

• Neonatal Medicine
• Gastroenterology
• Pediatrics

Background:

• Gastro-oesophageal reflux (GOR) is a frequent concern in neonates.
• Accurate detection of GOR in very low birthweight (VLBW) infants is crucial for management.
• Existing diagnostic methods may have limitations in this population.

Purpose of the Study:

• To investigate the prevalence and characteristics of GOR in VLBW infants.
• To evaluate the utility of a new oesophageal pH electrode for GOR detection.
• To explore the relationship between GOR and apnoea in preterm infants.

Main Methods:

• Utilized a novel 1 mm monocrystalline antimony oesophageal pH electrode.
• Monitored GOR in a cohort of VLBW infants over a 24-hour period.
• Correlated GOR parameters with clinical factors including feeding, nursing care, and xanthine administration.

Main Results:

• GOR was detected in 85% of studied VLBW infants.
• Reflux episodes were frequent, with a significant increase observed after nursing care and xanthine use.
• Severe, clinically unsuspected GOR was identified in infants with xanthine-resistant apnoea, resolving upon reflux treatment.

Conclusions:

• GOR is highly prevalent in VLBW infants and often presents asymptomatically.
• The new pH electrode provides effective detection of GOR in this vulnerable group.
• GOR should be considered in the differential diagnosis of persistent apnoea in preterm neonates, particularly when resistant to xanthines.