Exponential analysis of lobar pressure-volume characteristics

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Exponential analysis of lobar pressure-volume characteristics.

In 19 excised left human lungs, seven of which were emphysema-free, lobar pressure-volume (P-V) characteristics were analysed by fitting to the P-V data an exponential of the form V=A-Be-KPL (where V is the volume at a transpulmonary pressure (PL), A is the theoretical lung volume at infinite PL, B is the difference between A and the intercept of the fitted exponential on the volume axis and K ...

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Lobar pressure-volume characteristics of excised human lungs.

The pressure-volume (P-V) characteristics were investigated in 14 excised left human lungs and their individual lobes. Comparison of the upper and lower lobar P-V curves of the emphysema-free and emphysematous lungs showed no significant difference when plotted as per cent lobar volume at a transpulmonary pressure (PL) of 30 cm H2O (V30). However, when in the emphysematous lungs the more severe...

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ژورنال

عنوان ژورنال: Thorax

سال: 1981

ISSN: 0040-6376

DOI: 10.1136/thx.36.10.800