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    "titulo" => "Capacidad residual funcional durante cortos periodos de respiracion de oxigeno al 100% en sujetos sanos"
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        "titulo" => "Resumen"
        "resumen" => "<span id="absec0005" class="elsevierStyleSection elsevierViewall"><p id="sp0005" class="elsevierStyleSimplePara elsevierViewall">Se determin&#243; la capacidad residual funcional con el m&#233;todo de diluci&#243;n de helio en 20 sujetos sanos j&#243;venes respirando aire y ox&#237;geno 100 &#37;&#44; valorando la calibraci&#243;n y reproducibilidad del m&#233;todo&#46; En posici&#243;n sentado no se detectaron cambios en la FRC&#46; En dec&#250;bito supino hubo una peque&#241;a reducci&#243;n &#40;6 &#37;&#41; en la FRC al respirar ox&#237;geno estad&#237;sticamente significativa &#40;p &#60; 0&#44;01&#41;&#46; La disminuci&#243;n de volumen con el cambio postural fue un 4 &#37; mayor respirando ox&#237;geno que aire&#46;</p><p id="sp0010" class="elsevierStyleSimplePara elsevierViewall">La disminuci&#243;n de FRC al respirar ox&#237;geno 100 &#37; en dec&#250;bito supino se producir&#237;a probablemente por el colapso alveolar de las zonas con V&#39;&#47;Q&#39; bajo&#44; secundario a la eliminaci&#243;n de nitr&#243;geno pulmonar&#46; La repercusi&#243;n que esta disminuci&#243;n de volumen pul monar tendr&#237;a sobre el intercambio ga seoso ser&#237;a m&#237;nima desde un punto de vista cl&#237;nico&#46;</p></span>"
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        "titulo" => "Summary"
        "resumen" => "<span id="absec0010" class="elsevierStyleSection elsevierViewall"><p id="sp0015" class="elsevierStyleSimplePara elsevierViewall">The authors determined the functional residual capacity with the method of dilution of helium in 20 healthy young subjects breathing air and 100 &#37; oxygen&#44; evaluating the calibration and reproductibility of the method&#46; In a sitting position&#44; no changes in the FRC were detected&#46; In dorsal decubitus position there was statistically significant small reduction &#40;6 &#37;&#41; in the FRC when breathing oxygen &#40;P &#60; 0&#46;01&#41;&#46; The decrease of volume with the change of position was 4 &#37; when breathing oxygen with air&#46;</p><p id="sp0020" class="elsevierStyleSimplePara elsevierViewall">Probably the decrease of FRC when breathing 100 &#37; oxygen in dorsal decubitus was produced by alveola collapse of the zone with low V&#47;Q secondary to the elimination o pulmonary nitrogen&#46; The repercussion that this decrease of pulmonary volume would have on gaseous exchange would be minimal from the clinica point of view&#46;</p></span>"
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Vol. 15. Issue 2.
Pages 70-73 (April - June 1979)
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Vol. 15. Issue 2.
Pages 70-73 (April - June 1979)
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Capacidad residual funcional durante cortos periodos de respiracion de oxigeno al 100% en sujetos sanos
Residual functional capacity during short periods of respiration of 100 % oxygen in healthy subjects
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J. Ibáñez Juvé, J.M.a Raurich Puigdevall, R. Abizanda Campos, S. García Moris
Servicio de Medicina Intensiva. Complejo Sanitario de la Seguridad Social Virgen de Lluch. Palma de Mallorca
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Resumen

Se determinó la capacidad residual funcional con el método de dilución de helio en 20 sujetos sanos jóvenes respirando aire y oxígeno 100 %, valorando la calibración y reproducibilidad del método. En posición sentado no se detectaron cambios en la FRC. En decúbito supino hubo una pequeña reducción (6 %) en la FRC al respirar oxígeno estadísticamente significativa (p < 0,01). La disminución de volumen con el cambio postural fue un 4 % mayor respirando oxígeno que aire.

La disminución de FRC al respirar oxígeno 100 % en decúbito supino se produciría probablemente por el colapso alveolar de las zonas con V'/Q' bajo, secundario a la eliminación de nitrógeno pulmonar. La repercusión que esta disminución de volumen pul monar tendría sobre el intercambio ga seoso sería mínima desde un punto de vista clínico.

Summary

The authors determined the functional residual capacity with the method of dilution of helium in 20 healthy young subjects breathing air and 100 % oxygen, evaluating the calibration and reproductibility of the method. In a sitting position, no changes in the FRC were detected. In dorsal decubitus position there was statistically significant small reduction (6 %) in the FRC when breathing oxygen (P < 0.01). The decrease of volume with the change of position was 4 % when breathing oxygen with air.

Probably the decrease of FRC when breathing 100 % oxygen in dorsal decubitus was produced by alveola collapse of the zone with low V/Q secondary to the elimination o pulmonary nitrogen. The repercussion that this decrease of pulmonary volume would have on gaseous exchange would be minimal from the clinica point of view.

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Copyright © 1979. Sociedad Española de Neumología y Cirugía Torácica
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