Resumo

HERRERA GOMEZ, Pedro José  e  DUARTE, Gustavo. Blood flow and pulmonary ventilation: New paradigm?. Rev. colomb. anestesiol. [online]. 2013, vol.41, n.4, pp.280-282. ISSN 0120-3347.  https://doi.org/10.1016/j.rca.2013.08.002.

Gravity was established as the determinant factor regarding differences in the distribution of ventilation and perfusion in the lung by John West, concept that continue to be exposed, up to day, as a basic principle of the lung physiology. The modern diagnostic images permit to demonstrate that gravity is not the determinant factor of these differences, a fact that generate big questions about concepts, among many others, support mechanical ventila-tions, ventilatory modes and one lung ventilation in lateral position during thoracic surgery. This article reflects on the recent findings of perfusion and ventilation studies that question the paradigm of gravity as its main determinant, and their clinical implications.

Palavras-chave : Ventilation; Perfusion; Fractals; Gravitation; Lung.

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