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Blood Conservation in Coronary Artery Bypass Grafting
Taylor L. Garza, Juliano Lentz Carvalho, Gal Levy, Abe DeAnda, Jr, Scott D. Lick, Patrick T. Roughneen, Kathleen Vasquez.
University of Texas Medical Branch, Galveston, TX, USA.

Background - Determining the effect of blood conservation strategy in coronary artery bypass grafting at a single center. Methods - A retrospective chart review was performed at a single institution on 547 patients and of those 389 patients underwent an isolated Coronary artery bypass graft (CABG) between July 2018 - March 2021. Of the five cardiac surgeons included in the study, two implement blood conservation strategy (BCS) on a regular basis with an emphasis on limiting intraoperative hemodilution and tolerance of perioperative anemia. Results - Mortality was 1.80% (7 of 389) overall for patients undergoing their first-time CABG. There was no correlation between receiving a blood transfusion and mortality rate (p = 0.35). More patients underwent blood transfusion(s) in the non-BCS group (61%) compared to the BCS group (25%) (p < 0.01), but there was no significant difference in number of transfusions between non-BCS providers. Of all the patients who did not receive intraoperative blood transfusions, 73.2% did not receive any postoperative transfusions. There was no difference between age and risk of undergoing a blood transfusion (p > 0.05). Patients who underwent urgent intervention received more transfusions (46%) compared to elective intervention (34%) (p = 0.02). In addition, more females underwent transfusion (53%) compared to males (36%) (p < 0.01) as a whole. Conclusions - Implementation of BCS reduced blood transfusion in CABG patients without an increase in mortality and may prove beneficial in decreasing patientís risk for post-op morbidity.


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