TITLE

The prognostic value of estimated glomerular filtration rate, amino-terminal portion of the pro-hormone B-type natriuretic peptide and parameters of cardiopulmonary exercise testing in patients with chronic heart failure

AUTHOR(S)
Verberne, Hein J.; Van Der Spank, Aukje; Bresser, Paul; Somsen, G. Aernout
PUB. DATE
July 2012
SOURCE
Heart International;Jul2012, Vol. 7 Issue 2, p65
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The aim of this study was to evaluate the prognostic value of renal function in relation to amino-terminal portion of the pro-hormone B- type natriuretic peptide (NT-proBNP) and parameters of cardiopulmonary exercise testing in predicting mortality and morbidity in patients with moderate chronic heart failure (CHF). Sixty-one CHF patients were included in the study. Patients' characteristics were: age 64.3±11.6 years; New York Heart Association class I/II/III: 14/37/10; left ventricular ejection fraction: 0.30±0.13 (%); NT-proBNP: 252.2±348.0 (ng/L); estimated creatinine clearance (e-CC): 73.6±31.4 (mL/min); estimated glomerular filtration rate (e-GFR): 66.1±24.6 (mL/min/1.73 m ); the highest O2 uptake during exercise (VO2-peak): 1.24±0.12 mL/kg/min; VO2/workload: 8.52±1.81 (mL/min/W)]. During follow up (59.5±4.0 months) there were 15 cardiac deaths and 16 patients were hospitalized due to progression of heart failure. NT-proBNP and VO2workload were independently associated with cardiac death (P=0.007 and P=0.006, respectively). Hospitalization for progressive CHF was only associated with NT-proBNP (P=0.002). The combined cardiac events (cardiac death and hospitalization) were associated with NT-proBNP and VO2/workload (P=0.007 and P=0.005, respectively). The addition of estimates of renal function (neither serum creatinine nor e-GFR) did not improve the prognostic value for any of the models. In conclusion, in patients with moderate CHF, increased NT-proBNP and reduced VO2/ workload identify those with increased mortality and morbidity, irrespective of estimates of renal function.
ACCESSION #
80417005

 

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