Cerebral Near-Infrared Spectroscopy during Transition of Healthy Term Newborns
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
<b><i>Background:</i></b> Values of regional cerebral tissue oxygen saturation (<i>c</i>StO<sub>2</sub>) have been described during transition of term and preterm infants after birth. However, use of different devices precludes comparison of measurements. <b><i>Objective:</i></b> To measure <i>c</i>StO<sub>2</sub> during transition of term infants using a calibrated 4-wavelength laser light source near-infrared spectroscopy oximeter (FORE-SIGHT) to obtain data that allow comparison with <i>c</i>StO<sub>2</sub> of very-low-birth-weight (VLBW) infants using this oximeter and with <i>c</i>StO<sub>2</sub> of term infants using different oximeters. <b><i>Methods:</i></b><i>c</i>StO<sub>2</sub> (FORE-SIGHT oximeter), preductal arterial oxygen saturation and heart rate were measured in 46 healthy term infants (n = 20 spontaneous delivery, n = 22 caesarean section, n = 4 assisted vaginal delivery) during the first 10 min after delivery. <b><i>Results:</i></b> The median (interquartile range) <i>c</i>StO<sub>2</sub> at 2 min after birth was 42% (39-46) after spontaneous delivery, 42% (30-52) after caesarean section and 36% (20-53) after assisted vaginal delivery (no difference between groups). In association with increasing arterial oxygen saturation and heart rate, <i>c</i>StO<sub>2</sub> increased continuously and reached a steady state approximately 8 min after birth of 62-77% (interquartile range) in all three groups. <b><i>Conclusions:</i></b> Healthy term newborns had similar <i>c</i>StO<sub>2</sub> changes from 2 min after birth regardless of the mode of delivery. <i>c</i>StO<sub>2</sub> of healthy term infants was lower than <i>c</i>StO<sub>2</sub> of VLBW infants during transition. <i>c</i>StO<sub>2</sub> values as measured by the FORE-SIGHT oximeter seem in the range of values as measured by the NIRO 300 oximeter. They were lower than values as measured by the INVOS 5100 oximeter.
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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) | 0.001 | 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 it