The Use of ExPreS in the Weaning of Patients in Invasive Mechanical Ventilation

the pacient will be submitted to the SBT with T-ayre, with oxygen support that is proprotional to the fraction of inspired oxygen in IMV, during 30 minutes. If the pacient does not show any sign of SBT failure, ExPreS will be calculated. If punctuation is lower than or equal to 44, it indicates weaning failure and the pacient mjust return to MV for 24 hours at least. Punctuation between 45 and 58 must be evaluated if the pacient presents chronic obstructive pulmonary desease (COPD), obesity or heart desease. In this case, the weaning must be continued if there isn't any risck factors. Punctuation higher than or equal 59 indicates that the pacient can be extubated.