Predictive value of 6-min walk test distance versus cardiopulmonary exercise testing in systolic heart failure: Same value for different approaches?

摘要

The study by Forman et al. (1) increases the perspectives on how the distance of the 6-min walk test (6MWT) and the measured oxygen uptake (VO2) and ventilatory efficiency (VE/VCO2 slope) may add to the prognostic workup of heart failure (HF) patients. By examining these variables in a mild-to-moderate risk HF population, a similar prediction for hospitalization and mortality was observed at univariate analysis, whereas no prognostic discrimination emerged when variables were tested against main demographic and clinical characteristics.