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The efficacy of pre-operative preparation with intravenous iron and/or erythropoietin in anaemic patients undergoing orthopaedic surgery: An observational study.
European Journal of Anaesthesiology 2018 April
BACKGROUND: Pre-operative anaemia and transfusion are common among patients undergoing elective orthopaedic surgery. Application of 'patient blood management' might be the most effective way to reduce both anaemia and transfusion. Pre-operative administration of iron and/or erythropoietin (EPO) is one of the cornerstones of the first pillar of patient blood management, but in a daily clinical setting, efficacy and long-term safety of this measure have not been analysed thoroughly to date.
OBJECTIVE: To investigate the influence of pre-operative preparation (PREP) of patients with iron and/or EPO on peri-operative transfusion needs and long-term survival.
DESIGN: Single-centre, retrospective study.
SETTING: Anaesthesia department, University hospital.
INTERVENTIONS: Pre-operative preparation with iron and/or EPO versus no preparation.
METHODS: After approval of our local ethics committee, data of 5518 patients who received total hip or total knee replacement between 2008 and 2014 were included. Patients receiving iron and/or EPO were included in the PREP group, whereas patients without iron and/or EPO were included in the no preparation group. From the full data set, a bias-reduced subset of 662 patients was obtained by means of propensity score-matching to compare peri-operative red blood cell utilisation and long-term survival of patients between groups.
RESULTS: Patients in the PREP group needed a lower number of units of red blood cells than patients in the no preparation group (0.2 ± 0.8 vs. 0.5 ± 1.3, P < 0.001), had a lower transfusion rate (12 vs. 24%, P < 0.05) and had a similar haemoglobin concentration (10.7 ± 1.3 vs. 10.6 ± 1.1 g dl, not significant) at discharge. No differences in long-term survival were observed between the two study groups.
CONCLUSION: PREP of patients with iron and/or EPO in orthopaedic patients can be considered highly effective in terms of transfusion reduction, without influencing long-term survival.
OBJECTIVE: To investigate the influence of pre-operative preparation (PREP) of patients with iron and/or EPO on peri-operative transfusion needs and long-term survival.
DESIGN: Single-centre, retrospective study.
SETTING: Anaesthesia department, University hospital.
INTERVENTIONS: Pre-operative preparation with iron and/or EPO versus no preparation.
METHODS: After approval of our local ethics committee, data of 5518 patients who received total hip or total knee replacement between 2008 and 2014 were included. Patients receiving iron and/or EPO were included in the PREP group, whereas patients without iron and/or EPO were included in the no preparation group. From the full data set, a bias-reduced subset of 662 patients was obtained by means of propensity score-matching to compare peri-operative red blood cell utilisation and long-term survival of patients between groups.
RESULTS: Patients in the PREP group needed a lower number of units of red blood cells than patients in the no preparation group (0.2 ± 0.8 vs. 0.5 ± 1.3, P < 0.001), had a lower transfusion rate (12 vs. 24%, P < 0.05) and had a similar haemoglobin concentration (10.7 ± 1.3 vs. 10.6 ± 1.1 g dl, not significant) at discharge. No differences in long-term survival were observed between the two study groups.
CONCLUSION: PREP of patients with iron and/or EPO in orthopaedic patients can be considered highly effective in terms of transfusion reduction, without influencing long-term survival.
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