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Vol. 16. Issue 2.
Pages 39-42 (April - June 1980)
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Vol. 16. Issue 2.
Pages 39-42 (April - June 1980)
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Gases en sangre en neumoconiosis de los trabajadores del carbon
Gases in blood in pneumoconiosis of coal workers
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P. Echanove*, A. de Vega*, L. Palenciano**
* Médico Adjunto. Instituto Nacional de Silicosis. Oviedo
** Jefe de Servicio (Fisiología Respiratoria). Instituto Nacional de Silicosis. Oviedo
Article information
Resumen

La neumoconiosis simple de los trabajadores del carbón produce un descenso ligero de la PaO2 en reposo que suele corregirse en ejercicio.

En fibrosis masiva progresiva el defecto de intercambio de O2 es más severo, existiendo un descenso de PaO2 que en reposo todavía es moderado pero que se agrava con el ejercicio. Es probable que un factor importante determinante de este descenso sea la disminución de capacidad de difusión pulmonar que presentan estos pacientes, aunque no es posible excluir que también contribuya un cierto grado de imbalance ventilación/perfusión.

Summary

In coal workers simple pneumoconiosis produces a slight decrease of PaO2 at rest which is usually corrected during exercise.

In progressive massive fibrosis the defect of exchange of O2 is more severe, with a moderate decrease of PaO2 at rest but which is aggravated by exercise. It is probable that an important determining factor of this decrease be the decline of capacity of pulmonary diffusion presented by these patients, although one cannot exclude the possibility that a certain degree of ventilation/perfusion imbalance aiso contributed to this decrease.

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Copyright © 1980. Sociedad Española de Neumología y Cirugía Torácica
Archivos de Bronconeumología

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