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Vol. 29. Issue 1.
Pages 7-11 (January - February 1993)
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Vol. 29. Issue 1.
Pages 7-11 (January - February 1993)
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Variabilidad de la medida de la sensación de disnea durante el esfuerzo en pacientes con enfermedad pulmonar obstructiva crónica
Variability of the measurement of the sensation of dysnea during effort in patients with chronic obstructive pulmonary disease
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F. Ortega Ruiz, T. Montemayor Rubio, M.A. Morales Gordillo, R. Ayerbe, F. Hernández Utrera, J. Castillo Gómez
Servicio de Neumología. Hospital Universitario Virgen del Rocío. Sevilla
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El objetivo de este estudio fue evaluar la reproductibilidad de la medida de la sensación de disnea, durante el esfuerzo, en pacientes con enfermedad pulmonar obstructiva crónica. Para ello, se estudiaron a 18 enfermos con EPOC estabilizada a los que se les practicó una prueba de esfuerzo progresiva y máxi ma en tapiz rodante y cuya sensación de esfuerzo fue medida a través de una escala de Borg modificada. Para comprobar la reproductibilidad de la prueba en este tipo de pacientes y de la escala utilizada para cuantificar la disnea, se les repitió el ejercicio en idénticas condiciones con un margen de tiempo de 10 días de media. La sensación de disnea durante el esfuerzo se correlacionaba estrechamente con los principales paráme tros fisiológicos de ejercicio. El coeficiente de variación de estos parámetros, entre los dos esfuerzos, era pequeño, siendo del 4,5% para el volumen minuto (VEmax); 2,78% para el consumo de oxígeno (VO2max); 4,4% para la producción de carbónico (VCO2max); 3% para la frecuencia cardíaca (HRmax) y 2,75% para la presión inspiratoria medida en la boca (PImax). De igual forma, las variaciones de la sensación de disnea eran escasas, presentando un coeficiente de varia ción entre O y 6,2%, según minutos de ejercicio. Concluimos afirmando que la intensidad de la sensación de esfuerzo puede ser valorada usando una escala convencional y su reproducti bilidad es buena y semejante a la de los otros parámetros fisiológicos de ejercicio.

The aim of this study was to evaluate the reproducibility of the measurement of sensation of dysnea during effort in patients with chronic obstructive pulmonary disease. Eighteen patients with stabilized chronic obstructive pulmonary disease were studied by carrying out a progressive and maximum effort test on a treadmill measuring the sensation of effort by the modified Borg scale. To confirm the reproducibility of the test in this type of patients and the scale used to quantify the dysnea, the exercise was repeated under identical conditions with a margin of ten days. The sensation of dysnea during the effort was strictly correlated with the principal physiologic parameters of exercise. The variation coefficient of these parametes between the two efforts was small, being 4.5% for the minute volume (VEmax); 2.78% for the consumption of oxygen (VO2 max); 4.4% for carbon production (VCO2 max); 3% for heart rate (HRmax) and 2.75% for inspiratory pressure measured in the mouth (PI max). Likewise, the variations of sensation of dysnea were slight, presenting a variation coefficient between 0 and 6.2% according to the minutes of exercise performed. The authors conclude affirming that the intensity of the sensation of effort may be evaluated using a conventional scale and its reproducibility is good and is similar to that of other physiologic exercise parameters.

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Copyright © 1993. Sociedad Española de Neumología y Cirugía Torácica
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