Methods of weaning preterm babies <30 weeks gestation off CPAP: a multicentre randomised controlled trial

Area of Science:

• Neonatal respiratory support and weaning strategies.
• Clinical trial methodology in pediatrics.
• Infant respiratory distress and its management.

Background:

• The optimal method for weaning infants from continuous positive airway pressure (CPAP) remains debated.
• Existing controversies surround the impact of different CPAP weaning protocols on key infant outcomes.
• Investigating CPAP weaning's effect on time to discontinuation, respiratory support duration, and infant health is crucial.

Purpose of the Study:

• To compare the efficacy of three distinct CPAP weaning methods in a multicenter randomized controlled trial.
• To primarily assess the impact of CPAP weaning strategies on time to CPAP discontinuation and overall CPAP duration.
• To secondarily evaluate the effects of these methods on oxygen support duration, Bronchopulmonary Dysplasia (BPD) incidence, and length of hospital admission.

Main Methods:

• A multicenter randomized controlled trial involving 177 infants with gestational age less than 30 weeks.
• Infants were stabilized on CPAP and randomized into three weaning groups: immediate discontinuation (M1), cycled weaning (M2), and cycled weaning with nasal cannula support (M3).
• Data collected included time to wean off CPAP, CPAP duration, oxygen duration, BPD diagnosis, and length of admission.

Main Results:

• Method 1 (immediate discontinuation) resulted in significantly shorter time to wean off CPAP (11.3 days) and reduced CPAP duration (24.4 days) compared to M2 and M3.
• Secondary outcomes also favored Method 1, showing significantly shorter oxygen duration (24.1 days), lower BPD rates (12.5%), and reduced length of admission (58.5 days).
• No significant differences in mean gestational age or birthweight were observed between the groups at baseline.

Conclusions:

• The 'taken off' CPAP method (Method 1) significantly shortens the time required for CPAP weaning in preterm infants.
• Method 1 demonstrates a significant reduction in CPAP duration, oxygen support duration, and length of hospital stay.
• This weaning strategy is associated with a significantly lower incidence of Bronchopulmonary Dysplasia (BPD).