Abstract: Objective To investigate the prevalence of anemia and chronic kidney diseases(CKD) in hospitalized patients with congestive heart failure(CHF) and their impact on outcome of these patients.Methods In a retrospective study we analyzed 183 patients admitted with the diagnosis of CHF, NYHA classes Ⅱto Ⅳ.Patients were divided into anemic and non-anemic groups or CKD and non-CKD groups according to the definition of anemia and CKD. The prevalence of anemia and CKD was determined. An analysis of the relationship between anemia or CKD and hospital mortality was conducted.Results The prevalence of anemia and CKD was 37.7% and 55.74% respectively. The severity of CHF was associated with anemia and CKD. From classes Ⅱto Ⅳ CHF, the prevalence was 10.2%, 38.9% and 65.9% respectively for anemia and 34.7%, 53.3% and 84.1% respectively for CKD. Marked reductions in the level of Hb and eGFR followed the advance of NYHA classes(P<0.01). There was a positive association between anemia, CKD and the hospital mortality. Anemia was associated with CKD and NYAH classes.Conclusion Anemia and CKD are common in patients with CHF. Patients with severe CHF are likely to have anemia and CKD. Anemia or CKD is associated with hospital death in patients with CHF. CKD is one of probable causes of anemia in CHF.

Key words: congestive heart failure, chronic kidney disease, anemia, outcome