Recurrent thrombosis rescued by fondaparinux in high‐risk patients: A case series
Bibliographic record
Abstract
Background: Recurrent thrombosis treatment options are limited when anticoagulation with dose escalation of low molecular weight heparin or unfractionated heparin fail. Fondaparinux is a pure, synthetic pentasaccharide that consists of heparin's essential five-sugar chain that binds antithrombin to inactivate factor Xa. There is scarce data regarding fondaparinux's use in recurrent thrombosis. Key Clinical Question: We aim to explore fondaparinux's role in recurrent thrombosis when other standard anticoagulation treatments fail. Clinical Approach: We report a case series of six high thrombotic risk patients successfully treated with fondaparinux after thrombosis progression while on supratherapeutic low molecular weight heparin or unfractionated heparin. Of our six patients, two were previously diagnosed with a high-risk thrombophilia: triple positive antiphospholipid syndrome, and homozygous factor V Leiden. The other four had an underlying malignancy. Conclusion: With fondaparinux, no thrombosis progression was observed, and no bleeding complications occurred.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".