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Vol. 14. Issue 3.
Pages 118-122 (July - September 1978)
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Vol. 14. Issue 3.
Pages 118-122 (July - September 1978)
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Utilidad de la determinacion de la presion parcial de oxigeno en sangre venosa mezclada en la indicacion de la oxigenoterapia a enfermos con bronconeumopatia obstructiva cronica
Utility of the determination of partial pressure of oxygen in mixed venous blood for the indication of oxygenotherapy in patients with chronic obstructive bronchopneumopathy
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S. Romero Candeira, L. Sánchez Agudo, J.E. Rodríguez Ortega, J.L. Posada Alvarez, P. Gómez Fernández, J.M. Calatrava Requena
Hospital de Enfermedades del Tórax Victoria Eugenia, Madrid
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Resumen

Se han estudiado desde un punto de vista gasométrico y hemodinámico 26 enfermos con Bronconeumopatía Obstructiva Crónica, prestándose una especial atención al valor de Pv¯ O2 por suponerle un fiel indicador del grado de oxigenación tisular.

De las correlaciones entre la Pv¯ O2 y los parámetros gasométricos arteriales, se intentaron deducir límites idóneos para la administración de una correcta oxigenoterapia.

Los resultados parecen indicar una falta de valor predictivo de hipoxemia venosa para la Pa O2 en los enfermos en que ésta excede de 50mm de Hg y por otra parte, salvando la limitación que supone una indicación de oxigenoterapia basados en la determinación gasométrica a nivel arterial, una cifra de Pa O2, de 51mm de Hg aparece como el límite más aceptable por debajo del cual estaría indicado el inicio de la oxigenoterapia.

Summary

The authors have studied 26 patients with chronic obstructive bronchopneumopathy from a gasometric and hemodynamic point ofview, and giving special attention to the the value of Pv O2 as they assume it to be a faithful indicator of the degree of tissular oxygenation. The authors attempt to deduce appropirate limits for the administration of a correct oxygenation from the correlations between pv O2 and the arterial gasometric parameters.

The results seem to indicate a lack of predictive value of venous hypoxemia for Pa O2 in patients for whom this exceeds 50mmHg., and on the other hand, except for the limitation supposed by an indication of oxygenotherapy based on gasometric determination at the arterial level, a figure of Pa O2 of 51mm Hg. appears as the most acceptable limit, under which the initiation of oxygenotherapy wouid be indicated.

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Copyright © 1978. Sociedad Española de Neumología y Cirugía Torácica
Archivos de Bronconeumología
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