Ga complexes of 8-hydroxyquinoline-2-carboxylic acid: Chemical speciation and biological activity.

The binding ability of 8-hydroxyquinoline-2-carboxylic acid (8-HQA) towards Ga has been investigated by ISEH (Ion Selective Electrode, glass electrode) potentiometric and UV/Vis spectrophotometric titrations in KCl at I = 0.2 mol dm and at T = 298.15 K.

Awake prone position reduces work of breathing in patients with COVID-19 ARDS supported by CPAP.

Background: The use of awake prone position concomitant to non-invasive mechanical ventilation in acute respiratory distress syndrome (ARDS) secondary to COVID-19 has shown to improve gas exchange, whereas its effect on the work of breathing remain unclear. The objective of this study was to evaluate the effects of awake prone position during helmet continuous positive airway pressure (CPAP) ventilation on inspiratory effort, gas exchange and comfort of breathing.

Methods: Forty consecutive patients presenting with ARDS due to COVID-19 were prospectively enrolled.