E-203 The SEASE international registry analysis on the treatment of intracranial aneurysms with incorporated branch using cobalt-chromium 64 wires surpass evolve
Bibliographic record
Abstract
Introduction The use of the Pipeline Embolization Device for the treatment of intracranial aneurysms (IAs) with incorporated branch has been associated with delayed aneurysmal occlusion. However, there is limited evidence on the effectiveness of cobalt-chromium Surpass Evolve (SE; Stryker) for treating these types of IAs. This study aims to evaluate the efficacy and safety of SE for IAs with incorporated branch, and to compare outcomes between those with branch originating from the neck versus those arising from the sac of the aneurysms. Methods This analysis utilizes data from the Safety and Effectiveness Assessment of the Surpass Evolve (SEASE) registry, comprising retrospective data from 15 academic institutions in North America and Europe. Only IAs with incorporated branch were included in the study. Patient characteristics, angiographic findings, and clinical outcomes were assessed for the overall dataset and stratified based on the location of branch emergence from the aneurysm. Results The study included 67 patients (median [IQR] age: 58 years [51–66 years]) with IAs. Among these, 53 had branches emerging from the sac, while 14 had branches originating from the neck. Demographic characteristics, comorbidities, baseline functional status, and IA features were similar between the two groups (P > 0.05). Most IAs were located in the posterior communicating artery (46.3%), with a median size of 4.35 mm (IQR: 3.12, 6.51). At a median imaging follow-up of 10.5 months (IQR: 6.5–13.1 months), complete occlusion rates were lower in IAs with branch emerging from the sac (60.8%) compared to those with neck-originating branch (92.9%, P = 0.026), with an overall occlusion rate of 67.7%. The fate of the incorporated branch remained patent in 98.2% of cases at last follow-up, with no significant difference between the two groups (P > 0.999). Thromboembolic and hemorrhagic complications, as well as retreatment, were reported in 1.6% and 3.1% of cases, respectively, with no significant differences between the groups. Conclusion The use of SE for IAs with incorporated branch demonstrates acceptable rates of occlusion and a favorable safety profile. Notably, better occlusion rates were observed in IAs with branch originating from the neck compared to those emerging from the sac. These findings underscore the importance of careful consideration regarding branch location prior to SE implantation. Further large-scale studies are warranted to validate these results. Disclosures M. Dibas: None. J. Vivanco-Suarez: None. D. Lopes: 1; C; Mentice. 2; C; Asahi, Stryker, Corindus, Siemens, and Medtronic. 4; C; Syncron, Three Rivers Inc., Q’apel, VIZ.AI, Methinks, Vastrax, Borvo, BendIT, Collavidence, NDI, Prometheus, NextGen, Galaxy, Global Intervention, and Sim&Cure. 6; C; Honoraria: Cerenovus, Medtronic, and Stryker. Advisory Board: INFINITY [trial]. R. Hanel: 1; C; NIH, Interline Endowment, Microvention, Stryker, and CNX. 2; C; Medtronic, Stryker, Cerenovous, Microvention, Balt, Phenox, Rapid Medical, and Q’Apel. 4; C; InNeuroCo, Cerebrotech, eLum, Endostream, Three Rivers Medical Inc., Scientia, RisT, BlinkTBI, and Corindus. 6; C; Advisory board: MiVI, eLum, Three Rivers Medical Inc., Shape Medical, and Corindus. A. Rodriguez-Calienes: None. G. Cortez: None. J. Fifi: 1; C; Viz. 2; C; Penumbra, Stryker, Microvention, and Cerenovus. 4; C; Imperative care and Cerebrotech. A. Devarajan: None. G. Toth: 2; C; Medtronic and Dynamed. T. Patterson: None. D. Altschul: 2; C; Microvention, Stryker, and Von Vascular Inc. V. Pereira: 2; C; Stryker, Medtronic, Penumbra, Neurovasc, and Balt. X. Liu: None. A. Puri: 1; C; Medtronic, Stryker, and Cerenovus. 2; C; Medtronic, Stryker, Cerenovus, Microvention, Agile, Merit, Corindus, Q’apel, Arsenal, and Imperative Care. A. Kühn: None. W. Guerrero: None. P. Khandelwal: 2; C; Stryker and Medtronic. I. Bach: None. P. Kan: 1; C; NIH, Siemens, Joe Niekro, and Medtronic. 2; C; Stryker, Imperative Care, Cerenovus, and Microvention. G. Edhayan: None. M. Martinez-Galdamez: 2; C; Medtronic. C. Given: 2; C; Stryker and Medtronic. B. Gross: 2; C; Medtronic, Microvention, and Stryker. S. Narayanan: 2; C; Cerenovus, MicroVention, Inc. and Imperative Care. M. Galecio-Castillo: None. S. Derakhshani: None. S. Ortega-Gutierrez: 1; C; NIH-NINDS (R01NS127114–01, RO3NS126804–01), Stryker, Medtronic, Microvention, Methinks, Viz.ai. 2; C; Medtronic, Stryker Neurovascular.
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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 | 0.003 | 0.007 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.002 |
| Bibliometrics | 0.003 | 0.004 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.007 | 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".