Post-Extubation Assessment of Clinical Stability in ELBW Infants

The high-accuracy oxygen saturation signal will be continuously acquired for 168 hours post extubation from a separate pulse oximeter (Radical-7®, Masimo ROOT platform, MasimoCorp, Irvine, LA).

The cerebral and splanchnic regional oxygen saturation signals will be acquired continuously for 168h post extubation using two near infrared spectroscopy sensors (Masimo ROOT platform, MasimoCorp, Irvine, LA), one placed on the forehead for cerebral oxygenation and one on the abdomen (for splanchnic oxygenation).

"The regional lung ventilation will be measured using Electrical Impedance Tomography (TIMPEL, USA) at three time points:~* From 1 hour pre-extubation to 2 hours post extubation (total 3 hours)~* Between 24 and 48 hours post extubation (total 3 hours)~* Between 72 and 96 hours post extubation (total 3 hours)"