Abstract About 5.5 million people in the world have respiratory limitations, which is the 5th largest cause of hospitalizations in Brazil. Covid-19 has contributed negatively to this scenario. The choice of adequate respiratory support contributes to a better clinical outcome, also supporting an improvement in quality of life. A new way of providing oxygen therapy, with lower cost and capable of managing hypoxia, may be a promising alternative. With the use of common supplies, it is possible to provide a high flow of compressed air and oxygen, heated and humidified, optimizing ventilation-perfusion. With a view to addressing hypercapnia and hypoxemia, this newly designed new form can contribute to clinical practice. The results of this study showed the effectiveness of this strategy when using flows from 30l/min, since, in this way, the loss of gas supply to the patient is insignificant. In addition, the financial viability makes the strategy accessible to less favored institutions. The magnitude of respiratory disorders aroused the need for new approaches to this clinical scenario, as conventional oxygen therapy does not always meet these demands and the high-flow nasal catheter has already shown a promising strategy in cases of respiratory limitations. (AU)
Development of a New High-Oxygen Flow Nasal Device for Hypoxia Management in Patients With Pulmonary Limitation Arising from Covid-19 and Other Respiratory Diseases/ Uma Nova Estratégia de Aporte de Oxigênio Por Alto Fluxo em Cateter Nasal para Manejo da Hipóxia em Pacientes com Limitação Pulmonar Decorr