Studies on Prognosis of Chronic Pulmonary Emphysema with Special Reference to Abnormalities in Pulmonary Circulation and Arterial Blood Gases

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Abstract
In evaluating the prognostic significance of pulmonary function tests performed on the patients with chronic pulmonary emphysema, the relationship of main values of lung volumes, ventilatory capacities, arterial blood gases and pulmonary hemodynamics to the prognosis for 5 to 8 years was studied. Although further studies are necessary, the arterial CO2 tension in combination with the maximal breathing capacity was a simple practical index of both ventilatory and circulatory disturbances and was a useful guide to prognosis in chronic pulmonary emphysema.