Saturación regional de oxígeno mesentérica durante la transfusión sanguínea en neonatos prematuros
Bibliographic record
Abstract
Background: Neonatal anemia (NA) in premature newborns (PTNB) is common and transfusion is one of the treatments of choice; however, it has been associated with the development of necrotizing enterocolitis (NEC). Objective: To compare regional oxygen saturation (rSO2) and fraction of tissue oxygen excretion (FTOE) at baseline, during and at the end of transfusion in PTNBs with anemia. Material and methods: Prospective, observational, longitudinal, and analytical study. PTNBs of 28-36 weeks of gestational age (WGA) admitted to a Neonatal Intensive Care Unit (NICU) and with transfusion criteria of Canadian Blood Services were included. rSO2 was measured one hour before, during and up to one hour after transfusion. Results: 20 PTNBs were analyzed, 3 (15%) girls and 17 (85%) boys, aged 33 WGA (IQR 28-36), postnatal age 31 days (IQR 15-50), and weight of 1815 g (IQR 1385-2520). The rSO2 values before, during and after erythrocyte transfusion were 45.5% (IQR 38.25-60.25), 53.3% (IQR 44.25-64.0) and 53.5% (IQR 50.0-64.25), respectively, F = 5.76, p = 0.006, power = 0.83, DF = 2; FTOE values were 0.50 (IQR 0.31-0.56), 0.42 (IQR 0.30-0.50), and 0.39 (IQR 0.27-0.45), respectively, F = 3.53, p = 0.03, power = 0.62, DF = 2. Conclusion: Mesenteric rSO2 measurements increased and FTOE decreased gradually before, during and after erythrocyte transfusion, without showing correlation with pretransfusion hemoglobin.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".