Prognostic Value of Walk Distance, Work, Oxygen Saturation, and Dyspnea During 6-Minute Walk Test in COPD Patients

Abstract

6MWT work was not more useful than 6MWT distance to predict mortality. The study confirms that 6MWT distance and dyspnea on exertion are key elements in prognostic evaluation in COPD, while the value of exercise oxygen desaturation is less clear.