Novel Endovascular Neck Reconstruction and Coiling Technique for the Treatment of a Large Wide-Necked Basilar Apex Aneurysm Through a Radial Artery Approach: 2-Dimensional Operative Video.

Herein, we demonstrate a case of a large, wide-necked, basilar apex aneurysm (BAA) that was treated with neck reconstruction-assisted coil embolization using the PulseRider device (PulsarVascular, Los Gatos, California), a novel neck-reconstruction device. A 68-yr-old man was found to have large BAA during work-up for sinusitis. Computed tomography angiogram revealed an 11 × 10-mm BAA. Patient has history of coronary artery disease, atrial fibrillation (currently taking Warfarin), recent left hip replacement and right femoral bypass. Treatment of the aneurysm was advised due to its location and size. Microsurgical clip reconstruction was high risk for general anesthesia due to his medical comorbidities and anticoagulation. Wide-necked bifurcation aneurysms are challenging to treat with traditional balloon- or stent-assisted techniques. To mitigate these challenges, novel neck-reconstruction devices have been developed. The Pulsar is one of these neck-reconstruction devices that removes the need to selectively catheterize branch arteries; it is available in a "Y" and "T" configuration. Under conscious sedation and through a radial artery approach, the patient underwent endovascular reconstruction of BAA with Pulsar device and coils. A 6-Fr guide catheter, a 0.021" microcatheter for the Pulsar device and a 0.017" microcatheter for coil delivering were used. A 3 × 8.6 mm Pulsar device was selected based on aneurysm neck and basilar artery measurements. Complete embolization (Raymond-Roy 1 obliteration) of the aneurysm was successfully achieved with no complications. The patient remained neurologically intact and was discharged on postoperative day 1.  Parts of this video were published in Intracranial Aneurysms (1st Edition), Ringer (Ed), online companion to chapter 33B, Copyright Elsevier (2018).