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Updated: Jul 9, 2026
18:50
Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
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Does Small Aneurysm Size (<10 mm) Predict Complete Occlusion After Flow Diversion? A Surpass Evolve Single-Center
Gaurav Gupta1, Sanjeev Sreenivasan1, Seung Woo Baek1
1Department of Neurosurgery, Robert Wood Johnson University Hospital, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ, USA.
Summary
The Surpass Evolve flow diverter (SEFD) demonstrates good long-term safety and efficacy for treating intracranial aneurysms. Smaller aneurysm size (<10 mm) predicts successful occlusion, with low complication rates.
Area of Science:
- Neurosurgery
- Interventional Neuroradiology
- Medical Devices
Background:
- Long-term safety and efficacy data for the Surpass Evolve flow diverter (SEFD) in treating intracranial aneurysms are limited.
- Factors influencing complete aneurysm occlusion with SEFD remain unclear in existing literature.
Purpose of the Study:
- To evaluate the long-term safety and efficacy of the Surpass Evolve flow diverter (SEFD).
- To identify predictors of complete aneurysm occlusion following SEFD treatment.
Main Methods:
- Retrospective review of 80 intracranial aneurysms treated with SEFD between February 2020 and July 2022.
- Analysis of technical success, occlusion rates at 6 months, 1 year, and 2 years, and complication rates.
Main Results:
- 100% technical success rate for SEFD deployment.
- 6-month occlusion rate of 56.2%, increasing to 88.8% by 2 years.
- Aneurysm size <10 mm significantly predicted 6-month occlusion (OR: 2.16).
- No mortality or permanent neurological morbidity; major complications occurred in 7.2%.
Conclusions:
- SEFD offers favorable long-term safety and efficacy for intracranial aneurysms.
- Smaller aneurysm size (<10 mm) is associated with successful occlusion at 6 months.
- The device shows promise for wider adoption in neurovascular interventions.
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