• Transfusion · Feb 2011

    Incidence and transfusion risk factors for transfusion-associated circulatory overload among medical intensive care unit patients.

    • Guangxi Li, Sonal Rachmale, Marija Kojicic, Khurram Shahjehan, Michael Malinchoc, Daryl J Kor, and Ognjen Gajic.
    • Division of Pulmonary and Critical Care Medicine, Mayo Epidemiology and Translational Research in Intensive Care, Mayo Clinic, Rochester, Minnesota, USA. li.guangxi@mayo.edu
    • Transfusion. 2011 Feb 1;51(2):338-43.

    BackgroundTransfusion-associated circulatory overload (TACO) is a frequent complication of blood transfusion. Investigations identifying risk factors for TACO in critically ill patients are lacking.Study Design And MethodsWe performed a 2-year prospective cohort study of consecutive patients receiving blood product transfusion in the medical intensive care unit (ICU) of the tertiary care institution. Patients were followed for development of transfusion-related complications. TACO was defined as acute hydrostatic pulmonary edema occurring within 6 hours of transfusion. In a nested case-control design, transfusion characteristics were compared between cases (TACO) and controls after matching by age, sex, and ICU admission diagnostic category. In a secondary analysis, patient characteristics before transfusion were compared between cases (TACO) and randomly selected controls.ResultsFifty-one of 901 (6%) transfused patients developed TACO. Compared with matched controls, TACO cases had a more positive fluid balance (1.4 L vs. 0.8 L, p = 0.003), larger amount of plasma transfused (0.4 L vs. 0.07 L, p = 0.007), and faster rate of blood component transfusion (225 mL/hr vs. 168 mL/hr, p = 0.031). In a secondary analysis comparing TACO cases and random controls, left ventricular dysfunction before transfusion (odds ratio [OR], 8.23; 95% confidence interval [CI], 3.36-21.97) and plasma ordered for the reversal of anticoagulant (OR, 4.31; 95% CI, 1.45-14.30) were significantly related to the development of TACO.ConclusionVolume of transfused plasma and the rate of transfusion were identified as transfusion-specific risk factors for TACO. Left ventricular dysfunction and fresh-frozen plasma ordered for the reversal of anticoagulant were strong predictors of TACO before the onset of transfusion.© 2010 American Association of Blood Banks.

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