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Optimization of Preoperative Anemia in Lower Limb Joint Replacement Surgery

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BACKGROUND: Orthopaedic procedures such as total hip and total knee replacements carry a significant risk of postoperative anemia, necessitating allogenic blood transfusions (ABTs), and an increased hospital length of stay.… Click to show full abstract

BACKGROUND: Orthopaedic procedures such as total hip and total knee replacements carry a significant risk of postoperative anemia, necessitating allogenic blood transfusions (ABTs), and an increased hospital length of stay. AIM: Our aim was to investigate whether the implementation of a local protocol designed to detect and treat preoperative anemia resulted in reduced ABT rates and a shorter duration of length of hospital stay (LOS). METHODS: We retrospectively audited 683 patients undergoing primary hip and knee replacements. We collated data for all patients about hospital length of stay and blood transfusions received. Both descriptive statistics and univariate analysis were performed. RESULTS: Approximately 21.6% of the cohort within the study who were anemic at preoperative clinic had a significantly increased median LOS of 2 days (p < .001) and an increased packed red cell transfusion rate compared with non-anemic patients (26.1% vs. 2.21%, p < 001). However, treatment of preoperative anemia did not show any significant difference in transfusion rates compared with patients who did not receive corrective treatment. The median LOS was higher by 1 day in the treated group compared with the nontreated cohort (p = .005). CONCLUSION: There is significant evidence to suggest that preoperative anemia can increase LOS and increase the risk of requiring postoperative blood transfusions. However, anemia should be regarded as a characteristic that can add to the outcome in a cumulative manner, as opposed to an isolated factor. Further research is needed on how to better manage preoperative anemia in order to improve patients' outcomes.

Keywords: anemia; blood transfusions; preoperative anemia; optimization preoperative; lower limb; anemia lower

Journal Title: Orthopaedic Nursing
Year Published: 2022

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