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- W2420367391 abstract "The influence of hemoglobin kinetics on outcomes in heart failure has been incompletely established. Hemoglobin was determined at the first visit and at 6 months. Anemia was defined according to World Health Organization criteria (hemoglobin < 13 g/dL for men and hemoglobin < 12 g/dL for women). Patients were classified relative to their hemoglobin values as nonanemic (both measurements normal), transiently anemic (anemic at the first visit but not at 6 months), newly anemic (nonanemic initially but anemic at 6 months), or permanently anemic (anemic in both measurements). A total of 1173 consecutive patients (71.9% men, mean age 66.8 ± 12.2 years) were included in the study. In all, 476 patients (40.6%) were considered nonanemic, 170 (14.5%) had transient anemia, 147 (12.5%) developed new-onset anemia, and 380 (32.4%) were persistently anemic. During a follow-up of 3.7 ± 2.8 years after the 6-month visit, 494 patients died. On comprehensive multivariable analyses, anemia (P < .001) and the type of anemia (P < .001) remained as independent predictors of all-cause mortality. Compared with patients without anemia, patients with persistent anemia (hazard ratio [HR] = 1.62; 95% confidence interval [95%CI], 1.30-2.03; P < .001) and new-onset anemia (HR = 1.39; 95%CI, 1.04-1.87, P = .03) had higher mortality, and even transient anemia showed a similar trend, although without reaching statistical significance (HR = 1.31; 95%CI, 0.97-1.77, P = .075). Anemia, especially persistent and of new-onset, and to a lesser degree, transient anemia, is deleterious in heart failure. La influencia de la cinética de la hemoglobina en la insuficiencia cardiaca no se ha establecido por completo. Se determinó la hemoglobina en la primera visita y a los 6 meses. La anemia se definió según los criterios de la Organización Mundial de la Salud (hemoglobina < 13 g/dl los varones y < 12 g/dl las mujeres). Según los valores de hemoglobina, se estableció una clasificación de los pacientes como sin anemia (ambas determinaciones normales), con anemia transitoria (anemia en la primera visita, pero no a los 6 meses), con anemia de nueva aparición (inicialmente sin anemia, pero con anemia a los 6 meses) o con anemia permanente (anemia en ambas determinaciones). Se incluyó en el estudio a 1.173 pacientes consecutivos (el 71,9% varones; media de edad, 66,8 ± 12,2 años). Se consideró sin anemia a 476 pacientes (40,6%), con anemia transitoria a 170 (14,5%), con anemia de nueva aparición a 147 (12,5%) y con anemia persistente a 380 (32,4%). Durante un seguimiento de 3,7 ± 2,8 años después de la visita realizada a los 6 meses, fallecieron 494 pacientes. En los análisis multivariables generales, la anemia (p < 0,001) y el tipo de anemia (p < 0,001) continuaron siendo factores independientes predictivos de mortalidad por cualquier causa. En comparación con los pacientes sin anemia, aquellos con anemia persistente (hazard ratio [HR] = 1,62; intervalo de confianza del 95% [IC95%], 1,30-2,03; p < 0,001) o con anemia de nueva aparición (HR = 1,39; IC95%, 1,04-1,87; p = 0,03) presentaron más mortalidad, e incluso los pacientes con anemia transitoria mostraron una tendencia similar, aunque sin alcanzar significación estadística (HR = 1,31; IC95%, 0,97-1,77; p = 0,075). La anemia —en especial la persistente y la de nueva aparición y, en menor medida, la anemia transitoria— tiene efectos nocivos en la insuficiencia cardiaca." @default.
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- W2420367391 date "2016-09-01" @default.
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- W2420367391 title "Hemoglobin Kinetics and Long-term Prognosis in Heart Failure" @default.
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- W2420367391 doi "https://doi.org/10.1016/j.rec.2016.02.028" @default.
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