2024
DOI: 10.20944/preprints202404.0905.v1
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Particles in Exhaled Air (PExA): Clinical Uses and Future Implications

Thomas Roe,
Siona Silveira,
Zixing (Hings) Luo
et al.

Abstract: Acute and chronic respiratory diseases impose a significant economic and health burden. Distal small airway assessment requires invasive procedures such as a bronchoscopy and bronchoalveolar lavage. The Particles in Exhaled Air (PExA) device provides a non-invasive means of assessing small airways; it captures distal airway particles sized around 0.5-7m and contains particles of respiratory tract lining fluid (RTLF) that originate during airway closure and opening. The PExA device can measure particle count an… Show more

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