Journal
ANAESTHESIA CRITICAL CARE & PAIN MEDICINE
Volume 37, Issue 2, Pages 141-146Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.accpm.2017.03.003
Keywords
Paediatric scoliosis; Predictive factors; Surgery
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Introduction: Blood-saving strategy during spinal surgery in children often includes recombinant erythropoietin (rEPO) and antifibrinolytic therapapy (AFT). The aim of this study was to investigate the efficacy of intraoperative blood salvage in decreasing homologous blood transfusion. Material and methods: Using the prospective data from patients operated during a one year period for scoliosis correction, we calculate the predictable hematocrit at day postoperative 1 without the use of blood salvage and compare it to the target hematocrit transfusion according to patient's status. Predictors analyzed were: age, weight, surgical indication, Cobb's angle, ASA status, preoperative hemoglobin, number of level fused, sacral fusion and thoracoplasty. Statistical analyses were performed using a classification tree analysis. Results: This study included 147 patients. Blood salvage was estimated avoiding homologous blood transfusion in 17 patients. Predictors of the efficacy of blood salvage were: neuromuscular indications, number of level fused and BMI. Blood salvage was found totally ineffective in: patients with no neuromuscular diseases with either: surgeries interesting < 13 levels fused or surgeries interesting > 13 levels with a preoperative BMI >= 21. In all other cases, blood salvage can decrease homologous transfusion. The model exhibited 97% of accurate for the prediction if the inefficacy of blood salvage. The AUCROC of the model was 0.93 [95% confidence interval 0.9 to 0.99] and the overall validation was 60.1% of explained variability. Conclusion: The present study indicates that blood salvage is ineffective under certain circumstances. More studies are mandatory to confirm these results. (C) 2017 Societe francaise d'anesthesie et de reanimation (Sfar). Published by Elsevier Masson SAS. All rights reserved.
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