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Higher versus Lower Oxygen Concentration during Respiratory Support in the Delivery Room in Extremely Preterm Infants: A Pilot Feasibility Study.


ABSTRACT:

Background

Optimal starting oxygen concentration for delivery room resuscitation of extremely preterm infants (<29 weeks) remains unknown, with recommendations of 21-30% based on uncertain evidence. Individual patient randomized trials designed to answer this question have been hampered by poor enrolment.

Hypothesis

It is feasible to compare 30% vs. 60% starting oxygen for delivery room resuscitation of extremely preterm infants using a change in local hospital policy and deferred consent approach.

Study design

Prospective, single-center, feasibility study, with each starting oxygen concentration used for two months for all eligible infants.

Population

Infants born at 23 + 0-28 + 6 weeks' gestation who received delivery room resuscitation. Study interventions: Initial oxygen at 30% or 60%, increasing by 10-20% every minute for heart rate < 100 bpm, or increase to 100% for chest compressions.

Primary outcome

Feasibility, defined by (i) achieving difference in cumulative supplied oxygen concentration between groups, and (ii) post-intervention rate consent >50%.

Results

Thirty-four infants were born during a 4-month period; consent was obtained in 63%. Thirty (n = 12, 30% group; n = 18, 60% group) were analyzed, including limited data from eight who died or were transferred before parents could be approached. Median cumulative oxygen concentrations were significantly different between the two groups in the first 5 min.

Conclusion

Randomized control trial of 30% or 60% oxygen at the initiation of resuscitation of extremely preterm neonates with deferred consent is feasible.

Trial registration

Clinicaltrials.gov NCT03706586.

SUBMITTER: Law BHY 

PROVIDER: S-EPMC8625238 | biostudies-literature |

REPOSITORIES: biostudies-literature

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