Avaliação do uso de ventilação não-invasiva no desmame da ventilação mecânica em pacientes adultos – revisão integrativa

INTRODUCTION: patients with diagnosis of acute or chronic respiratory insufficiency need support through invasive mechanical ventilation (IMV), after the correction of the event that led the patient to need IMV, the weaning process is started, defined as the transition from artificial to spontaneous ventilation. Non-invasive ventilation (NIV) has been shown to be efficient in the weaning process, optimizing it and avoiding reintubation. OBJECTIVE : to evaluate the use of NIV in the weaning process of IMV in adult patients. METHODS: Integrative review, the survey of indexed researches was carried out from  2018 March to May, through the databases: PubMed/MEDLINE, Scielo and LILACS, using the descriptors: “weaning mechanical ventilation” and “ventilator weaning”, “noninvasive”, “non-invasive ventilation”, “continuous positive airway pressure”, “CPAP ventilation”, “bilevel continuous positive airway pressure”, “intervention studies” and “clinical trials”, “extubation”, “extubation failure”, “reintubation”, “reintubation failure” and “weaning”. The descriptors were used individually and cross-checked. RESULTS: a total of 123 articles were found with the search in the databases, 60 articles were excluded after reading the abstracts because they did not fit the inclusion criteria of the study, 63 articles were read in full, from where 10 were elected to integrate this integrative review. CONCLUSION: NIV is a therapy that has proven feasible in some studies to reduce the risk of reintubation in patients with diagnostic diversity who presented acute respiratory failure after extubation. However, this result was not unanimous, which hinders its recommendation.