Self-assessment of health status is associated with inflammatory activation and predicts long-term outcomes in chronic heart failure - PubMed (original) (raw)

Self-assessment of health status is associated with inflammatory activation and predicts long-term outcomes in chronic heart failure

John T Parissis et al. Eur J Heart Fail. 2009 Feb.

Abstract

Aims: Clinicians lack a generally accepted means for health status assessment in chronic heart failure (CHF). We investigated the correlation between health status and inflammation burden as well as its long-term prognostic value in CHF outpatients.

Methods and results: Kansas City Cardiomyopathy Questionnaires (KCCQ) were completed by 137 CHF outpatients (aged 64+/-12 years, mean ejection fraction 27+/-7%). Inflammatory markers [interleukin (IL)-6, IL-10, TNF-alpha, soluble Fas, Fas ligand, ICAM-1, VCAM-1], plasma B-type natriuretic peptide (BNP), 6 min walk test (6MWT), Zung self-rating depression scale, and Beck Depression Inventory were also assessed. Patients were followed for major cardiovascular events (death or hospitalization for disease progression) for up to 250 days. Patients with worse KCCQ-summary (KCCQ-s<50) score had lower 6MWT (P<0.05), and higher BNP (P<0.05) and pro-inflammatory markers (P<0.05) than those with KCCQ-s>or=50. Worse health status was also associated with shorter event-free survival (115+/-12 days for KCCQ-s<50 vs. 214+/-15 days for KCCQ-s>or=50, P=0.0179). Separating patients according KCCQ-functional score (KCCQ-f, cut-off 50) showed similar results. In multivariate Cox regression analysis, only LVEF (HR=0.637, 95% CI 0.450-0.900, P=0.011) and KCCQ-f (HR=0.035, 95% CI 0.002-0.824, P=0.037) were independent predictors of event-free survival at 250 days.

Conclusion: KCCQ-s reflects neurohormonal and inflammatory burden in CHF. Among studied questionnaires, only KCCQ-f is an independent predictor of long-term event-free survival in CHF.

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Figures

Figure 1

Figure 1

Kaplan–Meier curves for event-free survival according to Kansas City Cardiomyopathy Questionnaire score. Panel A: Kansas City Cardiomyopathy Questionnaire-summary; Panel B: Kansas City Cardiomyopathy Questionnaire-functional; solid line: score ≥50; dotted line: score <50.

Figure 2

Figure 2

Kaplan–Meier curves for event-free survival in a subpopulation of 56 patients; Panel A, according to Kansas City Cardiomyopathy Questionnaire-summary score (solid line: score ≥50; dotted line: score <50); Panel B: according to Minnesota Living with Heart Failure Questionnaire score (solid line: lower 50% percentile; dotted line: upper 50% percentile).

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