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Red Blood Cells Donated by Smokers: A Pilot Investigation of Recipient Transfusion Outcomes

Red Blood Cells Donated by Smokers: A Pilot Investigation of Recipient Transfusion Outcomes

Robert A DeSimone, Joshua A Hayden, Chase A Mazur, Ljiljana V Vasovic, Bruce S Sachais, Zhen Zhao, Ruchika Goel, Yen-Michael S Hsu, Sabrina E Racine-Brzostek, Melissa M Cushing

Transfusion. 2019 Aug;59(8):2537-2543.

PMID: 31074905

Abstract:

Background:
Current regulations do not require blood collection facilities to ask donors about cigarette smoking, and the prevalence of nicotine and its metabolites in blood products is not well established. Although smokers have higher hemoglobin (Hb) levels, smoking may adversely affect the quality of donated red blood cells through higher carboxyhemoglobin (COHb) content and premature hemolysis.
Study design and methods:
Red blood cell (RBC) unit segments from 100 unique donors were tested for nicotine and its metabolite cotinine by mass spectrometry and for COHb spectrophotometrically. Outcomes were evaluated retrospectively in adult non-bleeding patients receiving single RBC units.
Results:
Thirteen of 100 RBC segments (13%) were positive for cotinine at levels consistent with current smoking (> 10 ng/mL). The cotinine positive RBCs showed significantly greater COHb content compared to cotinine negative units (median 3.0% vs. 0.8%, p = 0.007). For patients transfused cotinine-positive units, there was no significant change in their vital signs following transfusion and no transfusion reactions were observed. However, patients transfused cotinine-positive units showed significantly reduced hematocrit and hemoglobin increments (median +1.2% and +0.4 g/dL) following transfusion compared to patients receiving cotinine negative units (median +3.6% and +1.4 g/dL) (p = 0.014).
Conclusion:
Thirteen percent of RBC units tested positive for cotinine at levels consistent with active smoking, accordant with the estimated national smoking rate of 15.5%. Cotinine-positive RBC units had greater COHb content and showed reduced hematocrit and hemoglobin increments following transfusion. These preliminary results should be validated in a larger cohort.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP486566	(−)-Cotinine		486-56-6	Price

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