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In evaluating the prognostic significance of pulmonary function tests performed on the patients with chronic pulmonary emphysema, authors studied the relationship of main values of lung volumes, ventilatory capacities, arterial blood gases and pulmonary hemodynamics to the prognosis for 5 to 8 years. Although further studies are necessary, the arterial carbon dioxide 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.

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