Plasma Fatty Acid Levels in Children during Extracorporeal Membrane Oxygenation Support—A Pilot Study
Bibliographic record
Abstract
Plasma fatty acids levels are markedly elevated in patients with myocardial ischemic–reperfusion injury including those after cardiopulmonary bypass (CPB). High levels of fatty acids have detrimental effects on myocardial function. Extracorporeal membrane oxygenation (ECMO) is like CPB, but much longer, to provide a life-saving support for patients with cardiac arrest. We measured plasma fatty acid levels in children during ECMO support. Five children (aged .3–36 months, median 20 months) receiving venoarterial ECMO support after cardiac arrest in 2010 and 2011 were enrolled. The study was initiated at 32–56 hours after the start of ECMO support as a result of the complicated clinical scenario. Fatty acids were measured at 8-hour intervals for 1–3 days. The dosage of inotropes and vasoactive agents was recorded concurrently. The duration of ECMO ranged from 70 to 240 hours (median 177 hours). Four patients were successfully weaned off ECMO support. One died after termination of ECMO. Levels of fatty acids were elevated compared with the normal values. Overall, fatty acid levels continuously decreased over time ( p < .0001), the mean being 1.03 ± .33 mmol/L in 30–50 hours, 1.01 ± .57 in 50–70 hours, .81 ± .32 in 70–90 hours, and .63 ± .23 hours. No correlation was found between fatty acid levels and other clinical variables, including age, dosage of inotropes and vasoactive agents, or ECMO duration. Plasma fatty acids levels are elevated in children during ECMO support and continuously decrease over time. Fatty acid levels may be markedly higher in the immediate hours after the initiation of ECMO. Data from more patients are needed to understand the profiles of fatty acids and the correlations with clinical variables. Metabolic manipulations to decrease fatty acids might improve myocardial recovery in patients undergoing ECMO support.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 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".