Six-Minute Walk Test and Cardiopulmonary Exercise Testing in Patients With Chronic Heart Failure
Why the study?
Does the 6MWT provide prognostic value comparable to CPET for predicting cardiac-related death in patients with chronic heart failure?
Population
253 patients diagnosed with systolic or diastolic chronic heart failure, mean age 61.9+/-10.1 years, mean…
Design
Cohort
Follow-up
4 years
Authors
Discussion
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Member takes
Implication
6MWT distance was not prognostic for survival; challenges its equivalence to CPET for risk stratification in chronic HF.
Structured PICO
Does the 6MWT provide prognostic value comparable to CPET for predicting cardiac-related death in patients with chronic heart failure?
P
Population
253 patients diagnosed with systolic (n=211) or diastolic (n=42) chronic heart failure, mean age 61.9+/-10.1 years, mean NYHA Class 2.2+/-0.78.
I
Intervention
Six-minute walk test (6MWT) and symptom-limited cardiopulmonary exercise testing (CPET)
O
Outcome
Cardiac-related death over a 4-year tracking periodhard clinical
While the 6MWT is a reliable measure of exercise intolerance, it lacks the prognostic value of CPET-derived variables for predicting survival in patients with chronic heart failure.
Cite This Study
Guazzi et al. (2009) studied this question.