Neck-Bridge Device for Endovascular Treatment of Wide-Neck Bifurcation Aneurysms: Initial Experience
Bibliographic record
Abstract
PURPOSE: To report the authors' initial experience in treating patients with wide-neck aneurysms with assistance from a recently developed neck-bridge device (TriSpan; Target Therapeutics/Boston Scientific, Fremont, Calif). MATERIALS AND METHODS: Twenty-five patients were examined. Aneurysms were most frequently at the basilar bifurcation (n = 19). Sixteen aneurysms were treated electively: six aneurysms that recurred after coil-only embolization and 10 nontreated aneurysms (including four that had failed coil-only embolization). Nine aneurysms were treated acutely following subarachnoid hemorrhage. All lesions except one had a wide neck. A dual-catheter technique was used in 23 patients. Immediate angiographic results, technical incidents, and complications were recorded. Follow-up angiography was performed in 16 patients. Clinical follow-up ranged from 1 to 12 months. RESULTS: Neck-bridge device-assisted coil packing was successfully performed in 23 lesions, with complete obliteration in three, residual necks in 13, and a minimal residual sac in seven patients. Parent vessel protection failed, with coil protrusion and arterial occlusion, in one of these patients. Other complications that were not directly related to use of the neck-bridge device included retroperitoneal hematoma, rebleeding, coil perforation, and transient embolic arterial occlusion. One patient died of vasospasm and heart failure. Follow-up angiography revealed complete obliteration in four, a residual neck in one, a persistent residual sac in four, and recurrent aneurysm in seven patients. One patient had a small occipital infarction 5 weeks after treatment. CONCLUSION: The described neck-bridge device is useful for assisting coil embolization of wide-neck bifurcation aneurysms.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".