Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.
Inclusion Criteria:
1. Age ≥22
2. Symptomatic cerebral vasospasm secondary to aneurysmal subarachnoid hemorrhage (aSAH) in the internal carotid artery (ICA), middle cerebral artery (MCA), anterior cerebral artery (ACA), posterior cerebral artery (PCA), or basilar artery (BA)
3. Vessel dilation procedure was performed with the NeVa VS
4. Subject or legal representative is able and willing to give informed consent within 3 days (72 hours) post-index procedure
Exclusion Criteria:
* None
Note: Other protocol defined Inclusion/Exclusion Criteria may apply.
Eligibility last updated 04/01/2026. Questions regarding updates should be directed to the study team contact.