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Circulatory and Respiratory Physiology

Calvin University

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Full-Text Articles in Medical Sciences

Growth Of Nasal And Laryngeal Airways In Children: Implications In Breathing And Inhaled Aerosol Dynamics, Jinxiang Xi, Xiuhua Si, Yue Zhou, Jong Won Kim Feb 2014

Growth Of Nasal And Laryngeal Airways In Children: Implications In Breathing And Inhaled Aerosol Dynamics, Jinxiang Xi, Xiuhua Si, Yue Zhou, Jong Won Kim

University Faculty Publications and Creative Works

The human respiratory airway undergoes dramatic growth during infancy and childhood, which induces substantial variability in air flow pattern and particle deposition. However, deposition studies have typically focused on adult subjects, the results of which cannot be readily extrapolated to children. We developed models to quantify the growth of human nasallaryngeal airways at early ages, and to evaluate the impact of that growth on breathing resistance and aerosol deposition. METHODS: Four image-based nasal-laryngeal models were developed from 4 children, ages 10 days, 7 months, 3 years, and 5 years, and were compared to a nasallaryngeal model of a 53-year-old adult. …


Growth Of Nasal And Laryngeal Airways In Children: Implications In Breathing And Inhaled Aerosol Dynamics, Jinxiang Xi, Xiuhua Si, Yue Zhou, Jong Won Kim Feb 2014

Growth Of Nasal And Laryngeal Airways In Children: Implications In Breathing And Inhaled Aerosol Dynamics, Jinxiang Xi, Xiuhua Si, Yue Zhou, Jong Won Kim

University Faculty Publications and Creative Works

BACKGROUND: The human respiratory airway undergoes dramatic growth during infancy and childhood, which induces substantial variability in air flow pattern and particle deposition. However, deposition studies have typically focused on adult subjects, the results of which cannot be readily extrapolated to children. We developed models to quantify the growth of human nasallaryngeal airways at early ages, and to evaluate the impact of that growth on breathing resistance and aerosol deposition. METHODS: Four image-based nasal-laryngeal models were developed from 4 children, ages 10 days, 7 months, 3 years, and 5 years, and were compared to a nasallaryngeal model of a 53-year-old …