Association of anemia with outcomes of acute heart failure

Ahmad Halawa, M. Caroline Burton, Michael J. Maniaci, Brian P Shapiro, Daniel S. Yip, David O. Hodge, Emily R. Vargas, Nancy Dawson

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Objectives: Anemia is common in patients presenting with acute congestive heart failure (CHF); when hemoglobin (HGB) declines to low levels, it can result in worse outcomes. The aim of this study was to determine a level of HGB on admission or discharge that affects outcomes in patients with CHF and then to evaluate the effect of the low HGB levels on these outcomes. Methods: We conducted a retrospective cohort study of 756 patients admitted with acute CHF during the period January 1, 2011-December 31, 2014. We used multivariable regression analysis to evaluate the relation among HGB levels and three major outcomes: 3-year mortality, 30-day readmission rate, and length of stay (LOS). Results: Compared with patients with HGB ≥10 g/dL, patients with HGB <10 g/dL on discharge from the hospital had higher mortality (3-year survival 46% vs 33%, P = 0.023) and 30-day readmission rates (23% vs 14%; P = 0.008) and increased LOS (4.8 vs 3.2 days, P < 0.001). Patients with admission HGB <10 g/dL had higher mortality rates (3-year survival 45% vs 32%, P = 0.019) and increased LOS (4.5 vs 3.4 days, P = 0.014). A lower admission HGB value was associated with higher 30-day readmission rates, but it was not statistically significant (P = 0.06). Conclusions: An HGB level <10 g/dL on admission or discharge in patients hospitalized with acute CHF is associated with a significantly worse outcome.

Original languageEnglish (US)
Pages (from-to)103-108
Number of pages6
JournalSouthern Medical Journal
Volume111
Issue number2
DOIs
StatePublished - Feb 1 2018

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Anemia
Hemoglobins
Heart Failure
Length of Stay
Mortality
Survival
Patient Discharge
Patient Admission
Cohort Studies
Retrospective Studies
Regression Analysis

Keywords

  • Anemia
  • Congestive heart failure
  • Heart failure outcome

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Association of anemia with outcomes of acute heart failure. / Halawa, Ahmad; Burton, M. Caroline; Maniaci, Michael J.; Shapiro, Brian P; Yip, Daniel S.; Hodge, David O.; Vargas, Emily R.; Dawson, Nancy.

In: Southern Medical Journal, Vol. 111, No. 2, 01.02.2018, p. 103-108.

Research output: Contribution to journalArticle

Halawa, A, Burton, MC, Maniaci, MJ, Shapiro, BP, Yip, DS, Hodge, DO, Vargas, ER & Dawson, N 2018, 'Association of anemia with outcomes of acute heart failure', Southern Medical Journal, vol. 111, no. 2, pp. 103-108. https://doi.org/10.14423/SMJ.0000000000000767
Halawa, Ahmad ; Burton, M. Caroline ; Maniaci, Michael J. ; Shapiro, Brian P ; Yip, Daniel S. ; Hodge, David O. ; Vargas, Emily R. ; Dawson, Nancy. / Association of anemia with outcomes of acute heart failure. In: Southern Medical Journal. 2018 ; Vol. 111, No. 2. pp. 103-108.
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AU - Hodge, David O.

AU - Vargas, Emily R.

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N2 - Objectives: Anemia is common in patients presenting with acute congestive heart failure (CHF); when hemoglobin (HGB) declines to low levels, it can result in worse outcomes. The aim of this study was to determine a level of HGB on admission or discharge that affects outcomes in patients with CHF and then to evaluate the effect of the low HGB levels on these outcomes. Methods: We conducted a retrospective cohort study of 756 patients admitted with acute CHF during the period January 1, 2011-December 31, 2014. We used multivariable regression analysis to evaluate the relation among HGB levels and three major outcomes: 3-year mortality, 30-day readmission rate, and length of stay (LOS). Results: Compared with patients with HGB ≥10 g/dL, patients with HGB <10 g/dL on discharge from the hospital had higher mortality (3-year survival 46% vs 33%, P = 0.023) and 30-day readmission rates (23% vs 14%; P = 0.008) and increased LOS (4.8 vs 3.2 days, P < 0.001). Patients with admission HGB <10 g/dL had higher mortality rates (3-year survival 45% vs 32%, P = 0.019) and increased LOS (4.5 vs 3.4 days, P = 0.014). A lower admission HGB value was associated with higher 30-day readmission rates, but it was not statistically significant (P = 0.06). Conclusions: An HGB level <10 g/dL on admission or discharge in patients hospitalized with acute CHF is associated with a significantly worse outcome.

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