RESUMO
Respiratory failure after a planned extubation is reported to be a common event, leading to reintubation and can occur in as many as 3-20% of extubated patients. It is crucial to identify the right time to extubate a patient, since re-intubation after pre-term extubation is associated with an increased risk for nosocomial pneumonia, prolonged intensive care unit [ICU] stay and death, and also accounts for substantially increased costs. This study was planned to assess the effectiveness of non-invasive pressure support ventilation [NIPPV] as a weaning technique in patients who develop respiratory distress after discontinuation of mechanical ventilation and extubation in comparison with conventional weaning through invasive pressure support ventilation. This is a randomized controlled study, sixty patients with either type I or II respiratory failure who developed post extubation respiratory failure were enrolled; they were randomly divided into two groups to receive either NIPPV or invasive pressure support ventilation. The primary outcome measure was the technique outcone; secondary outcome measures were incidence of complications, hemodynamic parameters, arterial blood gas parameters, ventilator parameters and length of ICU stay. Despite a longer time to failure observed with invasive pressure support ventilation, no statistically significant differences were observed in success rate, hemodynamic, and arterial blood gas parameters, although incidence of complications differs greatly according to the technique used. In a heterogonous group of patients; NIPPV is not superior to invasive pressure support ventilation in patients who developed post-extubation respiratory distress after successful weaning