• Annals of surgery · Sep 2023

    Association of Intraoperative Red Blood Cell Transfusions with Venous Thromboembolism and Adverse Outcomes after Cardiac Surgery.

    • Jacob Raphael, Xiaoke Feng, Matthew S Shotwell, Michael A Mazzeffi, Bruce A Bollen, Ashish S Shah, and Miklos D Kertai.
    • Department of Anesthesiology, Thomas Jefferson University Hospitals, Philadelphia, PA.
    • Ann. Surg. 2023 Sep 1; 278 (3): e650e660e650-e660.

    ObjectiveWe determined whether intraoperative packed red blood cell (PRBC) transfusion was associated with a higher incidence of hospital-acquired venous thromboembolic (HA-VTE) complications and adverse outcomes after isolated coronary artery bypass grafting (CABG) surgery.BackgroundIntraoperative PRBC has been associated with increased risk for postoperative deep venous thrombosis after cardiac surgery, but validation of these findings in a large, multi-institutional, national cohort of cardiac surgery patients has been lacking.MethodsA registry-based cohort study of 751,893 patients with isolated CABG between January 1, 2015, to December 31, 2019. Using propensity score-weighted regression analysis, we analyzed the effect of intraoperative PRBC on the incidence of HA-VTE and adverse outcomes.ResultsAdministration of 1, 2, 3, and ≥4 units of PRBC transfusion was associated with increased odds for HA-VTE [odds ratios (ORs): 1.27 (1.22-1.32), 1.21 (1.16-1.26), 1.93 (1.85-2.00), 1.82 (1.75-1.89)], deep venous thrombosis [ORs: 1.39 (1.33-1.46), 1.38 (1.32-1.44), 2.18 (2.09-2.28), 1.82 (1.74-1.91], operative mortality [ORs: 1.11 (1.08-1.14), 1.16 (1.13-1.19), 1.29 (1.26-1.32), 1.47 (1.43-1.50)], readmission within 30 days [ORs: 1.05 (1.04-1.06), 1.16 (1.13-1.19), 1.29 (1.26-1.32), 1.47 (1.43-1.50)], and a prolonged postoperative length of stay [mean difference in days, 0.23 (0.19-0.27), 0.34 (0.30-0.39), 0.69 (0.64-0.74), 0.77 (0.72-0.820]. The odds of pulmonary venous thromboembolism were lower for patients transfused with 1 or 2 units [ORs: 0.98 (0.91-1.06), 0.75 (0.68-0.81)] of PRBC but remained significantly elevated for those receiving 3 and ≥4 units [ORs: 1.19 (1.09-1.29), 1.35 (1.25-1.48)].ConclusionsIntraoperative PRBC transfusion was associated with HA-VTE and adverse outcomes after isolated CABG surgery.Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.

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