Effects of CPAP and FiO on respiratory effort and lung stress in early COVID-19 pneumonia: a randomized, crossover study.

Background: in COVID-19 acute respiratory failure, the effects of CPAP and FiO on respiratory effort and lung stress are unclear. We hypothesize that, in the compliant lungs of early Sars-CoV-2 pneumonia, the application of positive pressure through Helmet-CPAP may not decrease respiratory effort, and rather worsen lung stress and oxygenation when compared to higher FiO delivered via oxygen masks.

Methods: In this single-center (S.

Reliability of Total Serum IgE Levels to Define Type 2 High and Low Asthma Phenotypes.

High total IgE levels are weak predictors of T2 and have been reported in nonallergic asthma. Therefore, the role of total serum IgE (IgE) in the T2 phenotype is still debated. Objective: This study investigated the reliability of stratifying asthmatics into IgE and IgE within the T2 and T2 phenotypes.