Objective: To assess factors associated with failure in ventilatory weaning of children undergone surgical correction of congenital heart diseases.
Methods: Cohort study with 29 children. The heart diseases were divided into cyanotic (nine children) and acyanotic (20 children). We studied children from 0 to 5 years who underwent heart surgery with invasive mechanical ventilation.
Results: The failure group presented smaller value in SpO2 and higher values during days of stay in IMV and FiO2 when compared to the success group (P<0.05). It was observed that 4 children (14%) had failed in weaning, being necessary to return the ventilatory prosthesis before 48 hours after extubation.
Conclusion: The days of IMV, SpO2 and FiO2 were the main factors associated with failed extubation in this group of patients.
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