Physiol. Res. 53: 561-564, 2004


Assessment of Exhaled Gases in Ventilated Preterm Infants

P. Hitka1, M. Černý3, M. Vízek1, J. Wilhelm2, P. Zoban3

1Department of Pathophysiology, 2Department of Medical Chemistry and Biochemistry, 3Department of Neonatology, Second Faculty of Medicine, Charles University, Prague, Czech Republic

Received January 20, 2004

Accepted March 3, 2004


Hydrogen peroxide (H2O2) production in exhaled air was measured in ventilated preterm newborns at 5, 24 and 48 hours after delivery, using originally designed method of exhaled breath condensate (EBC) collection. H2O2 production in expired gas was 812±34 pmol/20 min during the first measurement and then declined to 389±21 at 24 hours and 259±26 pmol/20 min at 48 hours.

Key words

Exhaled breath condensate · Hydrogen peroxide · Ventilated newborns


© 2004 by the Institute of Physiology, Czech Academy of Sciences