TY - JOUR
T1 - Evaluation and Long-Term Prognosis of New-Onset, Transient, and Persistent Anemia in Ambulatory Patients With Chronic Heart Failure
AU - Tang, W. H.Wilson
AU - Tong, Wilson
AU - Jain, Anil
AU - Francis, Gary S.
AU - Harris, C. Martin
AU - Young, James B.
PY - 2008/2/5
Y1 - 2008/2/5
N2 - Objectives: This study sought to determine the characteristics and long-term prognosis of anemia in ambulatory patients with chronic heart failure. Background: Anemia is prevalent in heart failure, and may portend poor outcomes. Methods: We reviewed 6,159 consecutive outpatients with chronic stable heart failure at baseline, short-term (3-month) follow-up, and long-term (6-month) follow-up between 2001 and 2006. Clinical, demographic, laboratory, and echocardiographic data were reviewed from electronic medical records. Mortality rates were determined from 6-month follow-up to end of study period. Results: Prevalence of anemia (hemoglobin [Hb] <12 g/dl for men, <11 g/dl for women) was 17.2% in our cohort. Diabetes, B-natriuretic peptide, left ventricular ejection fraction, and estimated glomerular filtration rate were independent predictors of baseline anemia. Documented evaluation of anemia was found in only 3% of all anemic patients, and better in internal medicine than in cardiology clinics. At 6-month follow-up, new-onset anemia developed in 16% of patients without prior anemia, whereas 43% patients with anemia at baseline had resolution of their hemoglobin levels. Higher total mortality rates were evident in patients with persistent anemia (58% vs. 31%, p < 0.0001) or with incident anemia (45% vs. 31%, p < 0.0001) compared with those with without anemia at 6 months. Conclusions: These observations in a broad unselected outpatient cohort suggest that anemia in patients with heart failure is under-recognized and underevaluated. However, resolution of anemia was evident in up to 43% of patients who presented initially with anemia, and did not pose greater long-term risk for all-cause mortality. However, the presence of persistent anemia conferred poorest survival in patients with heart failure when compared with that of incident, resolved, or no anemia.
AB - Objectives: This study sought to determine the characteristics and long-term prognosis of anemia in ambulatory patients with chronic heart failure. Background: Anemia is prevalent in heart failure, and may portend poor outcomes. Methods: We reviewed 6,159 consecutive outpatients with chronic stable heart failure at baseline, short-term (3-month) follow-up, and long-term (6-month) follow-up between 2001 and 2006. Clinical, demographic, laboratory, and echocardiographic data were reviewed from electronic medical records. Mortality rates were determined from 6-month follow-up to end of study period. Results: Prevalence of anemia (hemoglobin [Hb] <12 g/dl for men, <11 g/dl for women) was 17.2% in our cohort. Diabetes, B-natriuretic peptide, left ventricular ejection fraction, and estimated glomerular filtration rate were independent predictors of baseline anemia. Documented evaluation of anemia was found in only 3% of all anemic patients, and better in internal medicine than in cardiology clinics. At 6-month follow-up, new-onset anemia developed in 16% of patients without prior anemia, whereas 43% patients with anemia at baseline had resolution of their hemoglobin levels. Higher total mortality rates were evident in patients with persistent anemia (58% vs. 31%, p < 0.0001) or with incident anemia (45% vs. 31%, p < 0.0001) compared with those with without anemia at 6 months. Conclusions: These observations in a broad unselected outpatient cohort suggest that anemia in patients with heart failure is under-recognized and underevaluated. However, resolution of anemia was evident in up to 43% of patients who presented initially with anemia, and did not pose greater long-term risk for all-cause mortality. However, the presence of persistent anemia conferred poorest survival in patients with heart failure when compared with that of incident, resolved, or no anemia.
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U2 - 10.1016/j.jacc.2007.07.094
DO - 10.1016/j.jacc.2007.07.094
M3 - Article
C2 - 18237687
AN - SCOPUS:38349101846
SN - 0735-1097
VL - 51
SP - 569
EP - 576
JO - Journal of the American College of Cardiology
JF - Journal of the American College of Cardiology
IS - 5
ER -