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Intern Emerg Med. 2017 Sep;12(6):749-756. doi: 10.1007/s11739-017-1637-5. Epub 2017 Feb 23.

Anemia is a mortality prognostic factor in patients initially hospitalized for acute heart failure.

Author information

1
Scuola di Specializzazione in Medicina Interna, Università degli Studi di Milano, Milan, Italy. margherita.migone@unimi.it.
2
Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy. margherita.migone@unimi.it.
3
Dipartimento di Scienze Cliniche e di Comunità, Università degli Studi di Milano, Milan, Italy. margherita.migone@unimi.it.
4
Servicio de Medicina Interna, Hospital Universitari de Bellvitge-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain.
5
Facultad de Medicina y Ciencias de la Salud, Universitat Internacional de Catalunya, Barcelona, Spain.
6
Scuola di Specializzazione in Medicina Interna, Università degli Studi di Milano, Milan, Italy.
7
Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
8
Dipartimento di Scienze Cliniche e di Comunità, Università degli Studi di Milano, Milan, Italy.

Abstract

Anemia is a risk factor related to morbidity and mortality in patients with chronic heart failure (HF). Less is known about its influence in patients in an early stage of HF. Our aim is to investigate the prognostic role of anemia in patients initially hospitalized for acute HF. We reviewed all consecutive patients admitted within a 18-month period with a main diagnosis of acute HF. We collected demographic, clinical and treatment data. Anemia is defined as Hemoglobin <12/13 g/dL upon admission in female/male patients, respectively. 719 patients were included (55.5% female), with a mean age of 78.7 ± 9 years. Anemia was present in 59.6% of patients upon admission, with a mean Hb of 10.4 ± 1.4 g/dL. Multivariate analysis confirms the relationship between the presence of anemia and older age, a previous diagnostic history of diabetes, and the presence of chronic kidney disease. In-hospital mortality is similar for anemic and non-anemic patients (6.8 vs 3.8%, p = n.s.) However, the difference is significant when one-year mortality is evaluated (31% in anemic patients vs 19% in non-anemic patients, p < 0.001). Cox regression analysis confirms the association between anemia and higher risk of one-year mortality, as well as with older age and a higher Charlson comorbidity index. Our study confirms that the presence of anemia is an independent factor for mid-term (1-year) mortality even in patients experiencing a first admission due to acute HF.

KEYWORDS:

Acute heart failure; Anemia; First hospital admission; Mortality

PMID:
28233161
DOI:
10.1007/s11739-017-1637-5
[Indexed for MEDLINE]

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