Heart failure and anemia: Effects on prognostic variables
Heart failure and anemia: Effects on prognostic variables
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DOI:
10.1016/j.ejim.2016.09.011
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发表时间:
2017-01-01
影响因子:
8
通讯作者:
Piepoli, Massimo F.
中科院分区:
文献类型:
--
作者:
Cattadori, Gaia;Agostoni, Piergiuseppe;Piepoli, Massimo F.
Background: Anemia is frequent in heart failure (HF), and it is associated with higher mortality. The predictive power of established HF prognostic parameters in anemic HF patients is unknown.Methods: Clinical, laboratory, echocardiographic and cardiopulmonary-exercise-test (CPET) data were analyzed in 3913 HF patients grouped according to hemoglobin (Hb) values. 248 (6%), 857 (22%), 2160 (55%) and 648 (17%) patients had very low (15) Hb, respectively.Results: Median follow-up was 1363 days (606-1883). CPETs were always performed safely. Hb was related to prognosis (Hazard ratio (HR) = 0.864). No prognostic difference was observed between normal and high Hb groups. Peak oxygen consumption (VO2), ventilatory efficiency (VE/VCO2 slope), plasma sodium concentration, ejection fraction (LVEF), kidney function and Hb were independently related to prognosis in the entire population. Considering Hb groups separately, peakVO(2) (very low Hb HR = 0.549, low Hb HR = 0.613, normal Hb HR = 0.618, high Hb HR = 0.542) and LVEF (very low Hb HR = 0.49, low Hb HR = 0.692, normal Hb HR = 0.697, high Hb HR = 0.694) maintained their prognostic roles. High VE/VCO2 slope was associated with poor prognosis only in patients with low and normal Hb.Conclusions: Anemic HF patients have a worse prognosis, but CPET can be safely performed. PeakVO(2) and LVEF, but not VE/VCO2 slope, maintain their prognostic power also in HF patients with Hb < 11 g/dL, suggesting CPET use and a multiparametric approach in HF patients with low Hb. However, the prognostic effect of an anemia-oriented follow-up is unknown. (C) 2016 European Federation of Internal Medicine. Published by Elsevier B.V. All rights reserved.