Ocorrência de hiperóxia em unidade de terapia intensiva adulto de um hospital universitário do nordeste do Brasil

Abstract

Objectives: Hyperoxia is common in critically ill patients undergoing mechanical ventilation in Intensive Care Units (ICUs) without beneficial effect and in some cases may cause damage. Its incidence ranges from 16-50% in this population. This study aims to study the prevalence of hyperoxia in patients submitted to mechanical ventilation at the University Hospital Walter Cantídio ICU. Method: retrospective observational study through the evaluation of the records of patients hospitalized in an adult intensive care unit of a university hospital. All adult patients submitted to mechanical ventilation, hospitalized consecutively, were evaluated in the period from March to September 2017. Results: In this study, 102 patients admitted to the ICU were submitted to mechanical ventilation. Hyperoxia (PaO 2 > 120mmHg) was found in 23.5% of these patients during the first 24 hours of ICU admission. Of the 102 patients analyzed, 86 of these remained in the ICU after 72 hours of admission and only 7% of these patients continued with hyperoxia. Conclusion: PaO 2 levels in the first 24 hours were often higher than recommended. This fact justifies the need for greater attention to the adequate supply of oxygen to patients under mechanical ventilation in daily practice.