Relationship between ETCO and PaCO under Changing Capnogram in Ventilated Infants with NAVA: An Observational Study.

This observational study evaluated the validity of end-tidal CO (ETCO) as a surrogate for arterial PCO (PaCO) in infants on neurally adjusted ventilatory assist (NAVA), particularly considering the influence of variable spontaneous breathing on capnography waveforms. The study involved 16 infants, analyzing 50 paired ETCO and PaCO values. Deming regression analysis highlighted a notably stronger correlation for maximum ETCO (r = 0.

Effect of tidal volume and end tracheal tube leakage on end-tidal CO in very low birth weight infants.

Objective: To examine the extents to which low tidal volume (VT) and endotracheal tube (ETT) leakeage influence the accuracy of ETCO for estimating arterial PCO (PaCO) in very low birth weight (VLBW) infants with mechanical ventilation.

Study Design: An observational study. We evaluated a total of 287 paired ETCO and PaCO values as well as VTs obtained from 22 VLBW infants with ventilation.

Newborn hearing screening in a single private Japanese obstetric hospital.

Background: Hearing loss is one of the most common abnormalities present at birth. The authors examined the frequency of newborn hearing disturbance at a single obstetric hospital to exclude technical varieties or varieties of subjects which are inevitable in multiple institutional cooperative studies.

Methods: The newborns were examined with an automated auditory brainstem response screener, the ALGO 2e, on day 4 post-partum.