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A randomized, controlled trial comparing two different continuous positive airway pressure systems for the successful
Beatrice M Stefanescu1, W Paul Murphy, Brenda J Hansell
1Department of Pediatrics, Wake Forest University School of Medicine, Winston-Salem, NC 27157-1081, USA.
Insights
The Infant Flow (IF) continuous positive airway pressure (CPAP) system did not reduce extubation failure in extremely low birth weight (ELBW) infants compared to conventional CPAP. New strategies are needed to address common causes like apnea/bradycardia.
Area of Science:
- Neonatalogy
- Pediatric Critical Care
- Respiratory Support
Background:
- Extubation failure is a significant challenge in extremely low birth weight (ELBW) infants requiring mechanical ventilation.
- Apnea/bradycardia is the most frequent cause of extubation failure in this vulnerable population.
Purpose of the Study:
- To compare the efficacy of the Infant Flow (IF) continuous positive airway pressure (CPAP) system against conventional CPAP in preventing extubation failure in ELBW infants.
- To assess the impact of IF CPAP on supplemental oxygen use and hospital length of stay.
Main Methods:
- A prospective, randomized, controlled trial involving 162 intubated ELBW infants in two intensive care nurseries.
- Successful extubation was defined as no reintubation required for at least 7 days post-extubation attempt.
Main Results:
- No significant difference in extubation success rates between the IF CPAP group (61.5%) and the conventional CPAP group (61.9%).
- Infants receiving IF CPAP experienced fewer days on supplemental oxygen and shorter hospitalizations.
- Apnea/bradycardia was the predominant reason for extubation failure in both groups.
Conclusions:
- The IF CPAP system is not more effective than conventional CPAP in reducing extubation failure among ELBW infants.
- Further research is necessary to identify predictors of extubation success and develop targeted treatments for apnea/bradycardia to minimize prolonged intubation in premature infants.
Objective:
To determine whether the use of the Infant Flow continuous positive airway pressure (IF CPAP) system reduces the rate of extubation failure among extremely low birth weight (ELBW) infants (infants with birth weight <1000 g) when compared with conventional CPAP delivered with a conventional ventilator and nasal prongs.
Methods:
A prospective, unmasked, randomized, controlled clinical trial was conducted in 162 eligible intubated ELBW infants who were hospitalized in 2 intensive care nurseries in Winston-Salem, North Carolina, between July 1997 and November 2000. Successful extubation was defined as no need for reintubation for any reason for at least 7 days after the first extubation attempt.
Results:
The individual extubation success rates were 61.9% (52 of 84) in the conventional CPAP group and 61.5% (48 of 78) in the IF CPAP group. There were no significant differences in the extubation success rate in any birth weight subset between the 2 cohorts. The most common cause of extubation failure was apnea/bradycardia. Infants who were randomized to IF CPAP had fewer days on supplemental O(2) and shorter hospital stays.
Conclusions:
Extubation failure is a common problem, occurring in nearly 40% of ELBW infants who require mechanical ventilation. IF CPAP was as effective but no more effective than conventional CPAP in preventing extubation failure among ELBW infants. New strategies are needed to identify predictors of extubation success and to treat apnea/bradycardia, the most common cause of extubation failure, thereby reducing the likelihood of prolonged intubation in this high-risk cohort of premature infants.
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