Jul 1, 1993

Hydraulic conductivity of visceral pleura in dogs

Nihon Kyōbu Shikkan Gakkai zasshi
Y AshinoS Fujimura

Abstract

We measured the hydraulic conductivity of the visceral pleura in seven mongrel dogs in situ. The left chest was opened at the seventh intercostal space. A hemispherical capsule, filled with physiological saline, was attached to the visceral pleura of the left lower lobe by the negative pressure in the plate, using a vacuum pump. Transpleural fluid flow (V) was measured at different intracapsular pressures (delta P). The hydraulic conductivity was calculated from the relation between fluid flow and intracapsular pressure, i.e., the slope of the linear regression line. The hydraulic conductivity was 1.49 +/- 0.68 (mean +/- SD) nL.min-1 x cmH2O-2. Our values were smaller than those of former reports obtained in vivo. It is suggested that the dynamics mechanisms of plural effusion may be clarified by studies using our method.

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Mentioned in this Paper

Visceral Pleura
Microbial Anatomical Capsule Structure
Structure of Left Lower Lobe of Lung
Mixed breed dog
Structure of Seventh Intercostal Space
Permeability
Effusion
Anterior Thoracic Region
Kinematics
Chest

About this Paper

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