Large difference between Enghoff and Bohr dead space in ventilated infants with hypoxemic respiratory failure.

Background: Ventilated neonates with hypoxemic respiratory failure (HRF) may show a ventilation-perfusion (V/Q) mismatch.

Objective: To evaluate the difference between the Bohr (V ) and Enghoff (V ) dead spaces in infants by using volumetric capnography based on ventilator graphics and capnograms.

Methods: This study enrolled 46 ventilated infants (mean birth weight, 2239 ± 640 g; mean gestational age, 35.