Electron Microscopy of Pulmonary Oedema

  • B. Cornin
Part of the Ettore Majorana International Science Series book series (EMISS, volume 3)

Abstract

The major mechanisms responsible for pulmonary oedema traditionally come under two headings: hydrostatic and cytotoxic. Thus oedema of the lungs may be due to hydrostatic/oncotic forces acting on vessels of normal permeability, or to cytotoxic factors which enhance permeability irrespective of pressure gradients. Tracer substances normally retained within the blood stream are thought to distinguish between these two mechanisms by escaping when cytotoxic factors increase vascular permeability. It has been demonstrated however that permeability is affected by purely hydrostatic forces, so blurring the traditional distinction between hydrostatic and cytotoxic oedema (Pietra et al., 1968; Schneeberger and Karnovsky, 1971). Nevertheless it is convenient to consider the causes of pulmonary oedema as acting under one or other of these two mechanisms.

Keywords

Pulmonary Oedema Clara Cell Cytotoxic Oedema Oedema Fluid Pinocytotic Vesicle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1980

Authors and Affiliations

  • B. Cornin
    • 1
  1. 1.St. Thomas’s Hospital Medical SchoolUK

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