Oxygenation.

Abstract

<p>These preterm newborn lambs required high Fio₂ (A) to maintain Po₂ (B) at targeted level. Ratio of Po₂ to Fio₂ (C) was improved soon after surfactant treatment. Although not significant, the increase in Po₂/Fio₂ after treatment tends to be faster by CHF5633 than Survanta (p = 0.052 at 20 min).</p