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  • Title: [The breathing pattern and inspiratory drive in chronic obstructive pulmonary disease].
    Author: Wang J.
    Journal: Zhonghua Jie He He Hu Xi Za Zhi; 1992 Oct; 15(5):274-6, 318. PubMed ID: 1306408.
    Abstract:
    Quantitative analysis of breathing pattern in 20 cases of COPD patients and 15 normal persons showed a significant correlation between values of VT/TI and P0.1; VT/TI value may be used clinically as an index of inspiratory drive. The elevation of VT/TI values of COPD patients at the end of high CO2-rebreathing denoted the sensitivity of their respiratory center is still preserved. However, the impairment of respiratory muscle endurance in hypercapnic COPD patients under rebreathing stress showed a prolongation of TI/TT.
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