Adjunctive Neurovascular Support for Wide-neck Aneurysm Embolization and Reconstruction

Primary Endpoints:

• Safety: Death or stroke in downstream territory to 180-days post-procedure
• Technical Success: Device placement success and ability to retain coils at the time of the index procedure
• Rate of aneurysm occlusion at Day zero (0) and 180 days

Additional Evaluations to 180-days and at 365-day follow up:

• Rate of aneurysm occlusion at 365 days
• Device movement or migration
• Stenosis
• Rate of incidence of new neurological deficits
• Complication rate (neurological and non-neurological)

Inclusion criteria

• Patient who presents with an angiographically confirmed, wide neck intracranial aneurysms located at a bifurcation of the basilar artery or carotid terminus artery
• The target aneurysm is in a vessel with a diameter of 2.7 mm to 4.5 mm.
• The patient is 18 years or older at the time of consent
• The patient has signed the IRB/EC approved informed consent form
• In the opinion of the physician, placement of the PulseRider is technically feasible and clinically indicated
• Subject has mental capacity and is willing and able to comply with protocol requirements and follow-up

Exclusion criteria

• Unstable neurological deficit (condition worsening within the last 90 days)
• Subarachnoid Hemorrhage (SAH) within the last 60 days
• Irreversible bleeding disorder
• mRS score ≥3
• Patient has another aneurysm which, in the Investigator's opinion, will require treatment within the follow up period (365 days)
• Platelet count < 100 x 103 cells/mm3
• Inability to tolerate, adverse reaction or contraindication to taking aspirin or clopidogrel
• A history of contrast allergy that cannot be medically controlled
• Known allergy to nickel
• Relative contraindication to angiography (e.g., serum creatinine > 2.5 mg/dL)
• Woman with child-bearing potential who cannot provide a negative pregnancy test
• Evidence of active infection
• Other conditions of the heart, blood, brain or intracranial vessels that carry a high risk of neurologic events
• Evidence of disease or condition expected to compromise survival or ability to complete follow-up assessments during the 365-day follow-up period
• Extracranial stenosis greater than 50% in the parent artery requiring access to the lesion
• Intracranial stenosis greater than 50% in the treated vessel
• Extreme vessel tortuosity that prohibits appropriate control of the micro-guide wire and/or the PulseRider delivery wire