The Long-Term Prognostic Significance of 6-Minute Walk Test Distance in Patients with Chronic Heart Failure
Joint Authors
Ingle, Lee
Cleland, John G.
Clark, Andrew L.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-27
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Background.
The 6-minute walk test (6-MWT) is used to assess patients with chronic heart failure (CHF).
The prognostic significance of the 6-MWT distance during long-term followup (>5 years) is unclear.
Methods.
1,667 patients (median [inter-quartile range, IQR]) (age 72 [65–77]; 75% males) with heart failure due to left ventricular systolic impairment undertook a 6-MWT as part of their baseline assessment and were followed up for 5 years.
Results.
At 5 years’ followup, those patients who died (n = 959) were older at baseline and had a higher log NT pro-BNP than those who survived to 5 years (n = 708).
6-MWT distance was lower in those who died [163 (153) m versus 269 (160) m; P < 0.0001].
Median 6-MWT distance was 300 (150–376) m, and quartile ranges were <46 m, 46–240 m, 241–360 m, and >360 m.
6-MWT distance was a predictor of all-cause mortality (HR 0.97; 95% CI 0.96-0.97; Chi-square = 184.1; P < 0.0001).
Independent predictors of all-cause mortality were decreasing 6-MWT distance, increasing age, increasing NYHA classification, increasing log NT pro-BNP, decreasing diastolic blood pressure, decreasing sodium, and increasing urea.
Conclusion.
The 6-MWT is an important independent predictor of all-cause mortality following long-term followup in patients with CHF.
American Psychological Association (APA)
Ingle, Lee& Cleland, John G.& Clark, Andrew L.. 2014. The Long-Term Prognostic Significance of 6-Minute Walk Test Distance in Patients with Chronic Heart Failure. BioMed Research International،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-477006
Modern Language Association (MLA)
Ingle, Lee…[et al.]. The Long-Term Prognostic Significance of 6-Minute Walk Test Distance in Patients with Chronic Heart Failure. BioMed Research International No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-477006
American Medical Association (AMA)
Ingle, Lee& Cleland, John G.& Clark, Andrew L.. The Long-Term Prognostic Significance of 6-Minute Walk Test Distance in Patients with Chronic Heart Failure. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-477006
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-477006