Efficacy of Preoperative Erythropoietin Administration in Pediatric Neuromuscular Scoliosis Patients
Bibliographic record
Abstract
STUDY DESIGN: This is a retrospective cohort study examining 61 patients with neurogenic scoliosis who underwent anterior and/or posterior spinal instrumentation at the age of 18 and younger. OBJECTIVE: The purpose of this study is to investigate this finding further by analyzing the effect of recombinant human erythropoietin (rhEPO) on hematocrit, transfusion and complication rates, and the length of intensive care unit (ICU) days in patients with neurogenic scoliosis. SUMMARY OF BACKGROUND DATA: The preoperative use of rhEPO has been shown to decrease perioperative transfusion requirements in many adult and pediatric patients. A recent study at our institution demonstrated the efficacy of rhEPO in pediatric idiopathic scoliosis patients, but suggested the possibility of an "erythropoietin resistance" in the pediatric neurogenic scoliosis population. METHODS: The patients' age at the time of surgery, gender, Cobb angle, erythropoietin administration and dosage, hematocrit levels, type of surgery, intraoperative blood loss, duration of surgery, number of vertebrae fused, comorbidities, complications, transfusion status, and the length of ICU days were collected. RESULTS: Thirty-five (57.3%) children received preoperative rhEPO, whereas 26 patients (42.7%) did not receive rhEPO. The mean preoperative and discharge hematocrit levels in the patients treated with rhEPO were significantly higher than the non-rhEPO group (P = 0.05). There were no significant difference in likelihood of transfusion, complications, and the length of ICU days between the rhEPO and the non-rhEPO groups. A multivariate analysis demonstrated that the number of fused vertebral levels maintained its significance (P = 0.044) and surgical time had a trend toward significance (P = 0.051) in predicting likelihood of transfusion. CONCLUSION: The use of rhEPO effectively stimulated erythropoiesis in these patients and yet demonstrated no significant clinical benefit in reducing the likelihood of transfusion in neurogenic patients in this study. More research is necessary to design a transfusion risk reduction protocols that will minimize the exposure of neurogenic scoliosis patients to allogeneic blood products.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".