A case of antiphospholipid syndrome presenting cryptogenically as Budd-Chiari syndrome, then fulminantly as Libman-Sacks endocarditis
Bibliographic record
Abstract
A 58 year-old left-handed woman was transferred to our hospital with an evolving left middle cerebral artery stroke, severe thrombocytopenia and elevated inflammatory markers. She had a history of chronic Budd-Chiari syndrome (BCS) 16 months prior, attributed to a calcified web in the inferior vena cava that was stented. No thrombophilia testing was performed at that time. The current presentation demonstrated dense right-sided facial and arm paresis and neglect. Erythrocyte sedimentation rate and C-reactive protein were elevated, an autoimmune workup was consistent with a new diagnosis of systemic lupus erythematosus and triple-positive antiphospholipid antibodies. A transesophageal echocardiogram demonstrated a vegetation consistent with Libman-Sacks endocarditis (LSE), thought to have embolised to the brain. The patient was treated acutely with steroids, intravenous immunoglobulin and clopidogrel. This case demonstrates an atypical constellation of the antiphospholipid syndrome, with a novel presentation of BCS and LSE, and reinforces the importance of hypercoagulability screening in this population.
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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 | 0.005 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 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".