• J Clin Anesth · Feb 2023

    Observational Study

    Single shot of intravenous iron in cardiac surgery: The ICARUS study.

    • Filippo Corsi, Annalisa Pasquini, Manuel Guerrera, Francesca Bevilacqua, Temistocle Taccheri, Maria Enrica Antoniucci, Maria Calabrese, Caterina Giovanna Valentini, Nicoletta Orlando, Martina Bartolo, Giorgio Cannetti, Claudio Pellegrino, Franco Cavaliere, and Luciana Teofili.
    • Department of Cardiovascular Sciences, Intensive Care Unit, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy. Electronic address: filippo.corsi@policlinicogemelli.it.
    • J Clin Anesth. 2023 Feb 1; 84: 111009111009.

    BackgroundIron deficiency (ID), with or without anemia, is commonly observed among patients scheduled for cardiac surgery. We investigated if screening ID in the immediate preoperative period and treating ID patients regardless of anemia could reduce perioperative transfusion requirements.MethodsThis is an observational single-center propensity score-matched study including candidates to elective cardiac surgery prospectively and retrospectively enrolled. Prospectively enrolled patients were screened for ID at hospital admission: if ferritin was ≤100 μg/L or ≤ 300 μg/L with transferrin saturation index ≤20% they received intravenous ferric carboxymaltose, B12-vitamin, and folic acid. A retrospective series of patients not screened for ID and matched for gender, type of surgery, BMI, Goudie transfusion risk score, hemoglobin level, and red blood cell (RBC) indices, served as controls. The primary outcome was the proportion of patients requiring ≤1 packed RBC (pRBC) unit within day 7 or discharge The main secondary outcomes were intraoperative and postoperative pRBC transfusions, duration of hospitalization, and cost-effectiveness of ID screening and treatment.ResultsWe included 479 prospective and 833 retrospective cases: 442 patients screened for ID and 442 matched controls with unknown iron status were analyzed. ID was observed in 196 patients (44.3%) and iron was administered 1 day (IQR 1-2) before surgery. Overall, 76.9% of patients in the prospective group and 69.7% of controls received ≤1 pRBC transfusion (p = 0.014). The risk for multiple transfusions was lower in patients screened for ID (OR 0.689, 95% CI 0.510-0.930). Despite similar Hb levels at day 7, patients in the prospective group received fewer postoperative pRBC transfusions (p < 0.001) and had a shorter hospital length of stay (p < 0.001). Globally, hospitalization costs were lower in patients screened and treated for ID.ConclusionsShort-term pre-operative iron therapy is associated with a reduction in postoperative transfusions in anemic and non-anemic ID cardiac surgery patients and has a favorable impact on hospitalization costs.Clinical Trial RegistrationNCT04744181.Copyright © 2022. Published by Elsevier Inc.

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