The failure of extubation in pediatric resuscitation is most often described as the need for reintubation within 48 hours after extubation. The failure rate of extubation in pediatric intensive care varies in the literature there is 4 to 22% failure. These failures result in increased mortality, morbidity with a use of larger tracheostomy, a prolonged residence time. Some risk factors are well defined in the literature as the duration of intubation, ENT and neurological history, the persistence of a respiratory disease, a high level of sedation. Other factors are more controversial as age, ventilatory parameters just before extubation before extubation blood gases, the interest of a leak test.

Also pediatric populations are extremely heterogeneous, so the investigators would like to highlight to extubation failure risk factors in Hautepierre pediatric ICU to better support these high-risk children.

Inclusion Criteria:

• Children hospitalized in pediatric intensive care, under 18 years, intubated, ventilated for more than 2 hours and for which planning extubation or intubated children for whom an unplanned extubation just happened.
• Children whose holding parental authority are not opposed to the use of clinical data from their child for research purposes.

Exclusion Criteria:

• Refusal to participate in the study

Children hospitalized in pediatric intensive care, under 18 years, intubated, ventilated for more than 2 hours and for which planning extubation or intubated children for whom an unplanned extubation just happened.