The Development of Indirect Carotid Cavernous Fistulas after Microvascular Ischemic 4th Nerve Palsies
Bibliographic record
Abstract
An indirect carotid cavernous fistula (CCF) is an abnormal connection between the cavernous sinus and internal or external carotid artery. Indirect CCFs often occur spontaneously, particularly in the setting of vascular risk factors such as hypertension, diabetes, and atherosclerosis. Microvascular ischemic nerve palsies (NPs) share these vascular risk factors. However, to date, no temporal relationship between microvascular ischemic NP and indirect CCF occurring sequentially has been reported. We describe the cases of 64- and 73-year-old women who developed indirect CCFs within 1-2 weeks after spontaneous resolution of a microvascular ischemic 4th NP. Both patients had complete resolution and an asymptomatic period between the 4th NP and CCF. This case highlights the shared pathophysiology and risk factors between microvascular ischemic NPs and CCFs, and emphasizes that CCFs should be kept in the differential diagnosis for red eye or recurrent diplopia in patients with previous microvascular ischemic NP.
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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 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.002 |
| 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".