Derivation and validation of a simple clinical risk-model in heart failure based on 6 minute walk test performance and NT-proBNP status - Do we need specificity for sex and beta-blockers?
Background: It is unclear whether risk prediction strategies in chronic heart failure (CHF) need to be specific for sex or beta-blockers. We examined this problem and developed and validated the consequent risk models based on 6-minute-walk-test and NT-proBNP. Methods: The derivation cohort comprise...
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| Hauptverfasser: | , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2011
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| In: |
International journal of cardiology
Year: 2011, Jahrgang: 147, Heft: 1, Pages: 74-78 |
| ISSN: | 1874-1754 |
| DOI: | 10.1016/j.ijcard.2009.08.005 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.ijcard.2009.08.005 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0167527309008547 
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| Verfasserangaben: | L. Frankenstein, K. Goode, L. Ingle, A. Remppis, D. Schellberg, M. Nelles, H.A. Katus, A.L. Clark, J.G.F. Cleland, C. Zugck |
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| 245 | 1 | 0 | |a Derivation and validation of a simple clinical risk-model in heart failure based on 6 minute walk test performance and NT-proBNP status - Do we need specificity for sex and beta-blockers? |c L. Frankenstein, K. Goode, L. Ingle, A. Remppis, D. Schellberg, M. Nelles, H.A. Katus, A.L. Clark, J.G.F. Cleland, C. Zugck |
| 246 | 3 | 0 | |a 6-minute-walk-test |
| 246 | 3 | 3 | |a Derivation and validation of a simple clinical risk-model in heart failure based on six minute walk test performance and NT-proBNP status : Do we need specificity for sex and β-blockers? |
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| 520 | |a Background: It is unclear whether risk prediction strategies in chronic heart failure (CHF) need to be specific for sex or beta-blockers. We examined this problem and developed and validated the consequent risk models based on 6-minute-walk-test and NT-proBNP. Methods: The derivation cohort comprised 636 German patients with systolic dysfunction. They were validated against 676 British patients with similar aetiology. ROC-curves for 1-year mortality identified cut-off values separately for specificity (none, sex, beta-blocker, both). Patients were grouped according to number of cut-offs met (group I/II/III - 0/1/2 cut-offs). Results: Widest separation between groups was achieved with sex- and beta-blocker-specific cut offs. In the derivation population, 1-year mortality was 0%, 8%, 31% for group I, II and III, respectively. In the validation population, 1-year rates in the three risk groups were 2%, 7%, 14%, respectively, after application of the same cut-offs. Conclusion: Risk stratification for CHF should perhaps take sex and beta-blocker usage into account. We derived and independently validated relevant risk models based on 6-minute-walk-tests and NT-proBNP. Specifying sex and use of beta-blockers identified three distinct sub-groups with widely differing prognosis. In clinical practice, it may be appropriate to tailor the intensity of follow-up and/or the treatment strategy according to the risk-group. | ||
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| 650 | 4 | |a Chronic heart failure | |
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