Internal decision

The purpose of this observational post-marketing registry will be to collect and analyze safety, effectiveness, and quality of life outcomes, during and after treatment with the Surpass Flow Diverter. Health Economics assessments (cost data) will also be collected and analyzed.

This will be a prospective, observational, multi-center, single-arm, post-marketing, international registry with consecutive enrollment of a minimum of 150 patients treated with the Surpass Flow Diverter in accordance with the standard of care at up to 30 registry sites.

Inclusion Criteria:

• Patients who are to be treated with a Surpass Flow Diverter(s) will be eligible to participate in this registry. Patients will be enrolled on a consecutive basis.

Exclusion Criteria:

• This is a standard of care registry. Patients should be excluded if standard of care at a given site is such that they are not eligible for treatment with a Surpass Flow Diverter(s).

For the primary endpoint, the evaluable patient population will consist of all individuals treated with the Surpass Flow Diverter(s) who have provided consent, and who have completed their 12 month follow-up assessment.