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Previous Volume 347:633-642 August 29, 2002 Number 9 Next

	Full Text PDF PDA Full Text PowerPoint Slide Set Supplementary Material Perspective by Slutsky, A. S. Editorial by Stark, A. R. Add to Personal Archive Add to Citation Manager Notify a Friend E-mail When Cited PubMed Citation

ABSTRACT

Background There remains uncertainty concerning the safety and efficacy of high-frequency oscillatory ventilation as compared with those of conventional ventilation for the respiratory support of very preterm infants. We conducted a multicenter trial to determine whether early intervention with high-frequency oscillatory ventilation reduced mortality and the incidence of chronic lung disease among newborns with a gestational age of 28 weeks or less.

Methods We randomly assigned preterm infants with a gestational age of 23 to 28 weeks to either conventional ventilation or high-frequency oscillatory ventilation within one hour after birth. Randomization was stratified according to center and gestational age (23 to 25 weeks or 26 to 28 weeks).

Results A total of 400 infants were assigned to high-frequency oscillatory ventilation, and 397 were assigned to conventional ventilation. The composite primary outcome (death or chronic lung disease, diagnosed at 36 weeks of postmenstrual age) occurred in 66 percent of the infants assigned to receive high-frequency oscillatory ventilation and 68 percent of those in the conventional-ventilation group (relative risk in the group assigned to high-frequency oscillatory ventilation, 0.98; 95 percent confidence interval, 0.89 to 1.08). Similar proportions of infants died or had chronic lung disease in each gestational-age group. In both treatment groups treatment failure occurred in 10 percent of infants (relative risk in the group assigned to high-frequency oscillatory ventilation, 0.99; 95 percent confidence interval, 0.66 to 1.50). There were no significant differences between the groups in a range of other secondary outcome measures, including serious brain injury and air leak.

Conclusions The results obtained with high-frequency oscillatory ventilation and conventional ventilation do not differ significantly in the early treatment of respiratory disease in very preterm infants. Assessment of long-term effects will require additional follow-up.

Source Information

From the Department of Child Health (A.H.J., S.A.C.) and the Department of Public Health Sciences (J.L.P., E.S.L., L.M.), St. George's Hospital Medical School, and the Department of Child Health, Kings College Hospital Medical School (A.G.) — both in London; and the Academic Division of Child Health, School of Human Development, University of Nottingham, Nottingham, United Kingdom (N.M.).

Address reprint requests to Dr. Calvert at the Department of Child Health, 3rd Fl., Lanesborough Wing, St. George's Hospital, London SW17 0QT, United Kingdom, or at scalvert{at}sghms.ac.uk.

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