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Minerva Cardioangiol ; 58(1): 1-10, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20145590

RESUMEN

AIM: The aim of this study was to assess cardiac mortality in patients with reduced ejection fraction (EF< or =45%) and anemia (Hb< or =12 g/dL) undergoing coronary stenting and to investigate whether iron-deficiency anemia influenced outcome when compared to non-anemic patients or patients with other types of anemia. METHODS: One hundred twenty consecutive patients undergoing percutaneous coronary intervention (PCI) between April 2003 and December 2005 were identified and followed for a median of 30 months. Patients were divided into 2 groups, anemic (Hb< or =12 g/dL) and non-anemic. Anemic patients were then divided into 3 sub-groups based on laboratory analysis and anemia work-up: iron-deficiency, malignancy-associated, and anemia of chronic disease (including chronic kidney disease). Mortality rates and cause of death were retrieved using both the Social Security database and the hospital records. RESULTS: Thirty-one percent of patients had iron deficiency, 24% had a malignancy-associated anemia and 45% had anemia of chronic disease. Overall mortality was 12% of which 29% was cardiac death. All-cause and cardiac mortality were significantly higher in anemic vs. non-anemic patients, (31% vs. 6%, P<0.001, and 10% vs. 1%, P=0.016, respectively). Iron-deficiency anemia strongly predicted cardiac mortality (33% vs. 1% in non-anemic patients, P<0.001), while malignancy-associated anemia was the strongest predictor of non-cardiac death (57% vs. 4% in non-anemic patients, P<0.001). Anemia of chronic disease neither predicted cardiac nor non-cardiac death. CONCLUSIONS: To the authors' knowledge, this is the first study to show that iron-deficiency anemia is a strong predictor of cardiac death when compared to patients with other types of anemia or to non-anemic patients.


Asunto(s)
Anemia Ferropénica/complicaciones , Angioplastia Coronaria con Balón , Cardiopatías/complicaciones , Cardiopatías/mortalidad , Stents , Disfunción Ventricular Izquierda/complicaciones , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos
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