Central Venous Catheter-Associated Deep Venous Thrombosis in Critically Ill Children
Bibliographic record
Abstract
The presence of a central venous catheter and admission to the intensive care unit are the most important risk factors for deep venous thrombosis (DVT) in children. At least 18% of critically ill children with a catheter develop radiologically confirmed catheter-associated thrombosis. Clinically apparent thrombosis occurs in 3% of critically ill children with a catheter and is associated with 8 additional days of mechanical ventilation. Even when the thrombus is initially asymptomatic, 8 to 18% of critically ill children with catheter-associated thrombosis develop postthrombotic syndrome. Thrombosis is uncommon within 24 hours after insertion of a nontunneled catheter in critically ill children, but nearly all thrombi have developed by 4 days after insertion. Hypercoagulability during or immediately after insertion of the catheter plays an essential role in the development of thrombosis. Pharmacologic prophylaxis, including local anticoagulation with heparin-bonded catheter, has not been shown to reduce the risk of catheter-related thrombosis in children. Systemic anticoagulation in critically ill children started soon after the insertion of the catheter, however, may be beneficial. A multicenter clinical trial that is testing this hypothesis is currently underway.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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".