Abstract
Peripheral venous hemoglobin (Hb) measurements are considered to accurately reflect circulating red blood cell mass (RBCM). In volume overload decompensated chronic heart failure (DCHF), reliance on Hb values may be misleading. Using quantitative radiolabel blood volume analysis (BVA), we evaluated the relation of RBCM to volume overload and reliability of Hb measurements to reflect RBC status in patients hospitalized for DCHF. Of 32 patients evaluated (LVEF <50 %), 19 met WHO Hb criteria for anemia. By BVA, however, only 4/19 had true anemia (low Hb and low RBCM) while 15/19 demonstrated plasma volume expansion dilution-related “anemia” (6 low Hb/normal RBCM, 9 low Hb/excess RBCM). The remaining 13/32 had normal range Hb (12 with excess RBCM). Overall, 66 % of cohort demonstrated RBCM excess. RBC profiles are highly variable in DCHF, and peripheral Hb values are often misleading in identifying RBC status. These findings have implications for volume management.



Abbreviations
- HF:
-
Heart failure
- PV:
-
Plasma volume
- RBCM:
-
Red blood cell mass
- Hb:
-
Hemoglobin
- DCHF:
-
Decompensated chronic heart failure
- LVEF:
-
Left ventricular ejection fraction
- ACEI:
-
Angiotensin-converting enzyme inhibitors
- ARBs:
-
Angiotensin receptor blockers
- NYHA:
-
New York Heart Association
- TBV:
-
Total blood volume
- BVA:
-
Blood volume analysis
- SD:
-
Standard deviation
- WHO:
-
World Health Organization
- ED:
-
Emergency department
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IRB approval was obtained for collection of human clinical study data.
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Associate Editor Craig Stolen oversaw the review of this article
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Miller, W.L., Mullan, B.P. Peripheral Venous Hemoglobin and Red Blood Cell Mass Mismatch in Volume Overload Systolic Heart Failure: Implications for Patient Management. J. of Cardiovasc. Trans. Res. 8, 404–410 (2015). https://doi.org/10.1007/s12265-015-9650-4
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DOI: https://doi.org/10.1007/s12265-015-9650-4