De Novo Dural Arteriovenous Fistula Formation Following Asymptomatic Sinus Thrombosis: A Case Report and Review of the Literature
Bibliographic record
Abstract
Cerebral venous sinus thrombosis (CVST) has been suggested to play an important role in the pathogenesis of dural arteriovenous fistular (DAVF) formation but studies supporting a causal relationship are rare. We report a 15-year-old male who developed a brief syncopal episode that was felt to be secondary to dehydration. A non-contrast computerized tomography (CT) scan of the head showed hyperdensities of the posterior superior sagittal and bilateral transverse sinuses. Magnetic resonance venogram confirmed the presence of diffuse CVST without cerebral edema, infarction or hemorrhage. Dural sinuses were partially recanalized after a six-week anticoagulation treatment. At 14 months patient was found with a left sided DAVF that was embolized successfully without complications. The presence of asymptomatic, minimally symptomatic or partially treated CVST may be implicated in the pathogenesis of DAVF. doi: http://dx.doi.org/10.4021/jnr195w
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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 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.004 | 0.003 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| 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".