Paraspinal arteriovenous malformation Onyx embolization via an Ascent balloon.

Purely extradural lumbar spinal arteriovenous malformations (AVMs) are rare lesions that have diverse presentations and imaging features. The treatment of a symptomatic high flow paraspinal AVM with multiple feeders remains a challenge. We report the first use of an Ascent balloon (dual lumen balloon catheter) to deliver Onyx with excellent penetration to a paraspinal AVM.

Paraspinal arteriovenous malformation Onyx embolization via an Ascent balloon.

Purely extradural lumbar spinal arteriovenous malformations (AVMs) are rare lesions that have diverse presentations and imaging features. The treatment of a symptomatic high flow paraspinal AVM with multiple feeders remains a challenge. We report the first use of an Ascent balloon (dual lumen balloon catheter) to deliver Onyx with excellent penetration to a paraspinal AVM.

Utility of intraoperative transesophageal echocardiography during endovascular stent-graft repair of acute thoracic aortic dissection.

This study was undertaken to evaluate the utility and efficacy of intraoperative transesophageal echocardiography (TEE) in the endovascular management of patients with acute type B aortic dissection. Twelve consecutive patients with acute type B aortic dissection underwent elective endoluminal stent-graft repair in the operating room under angiographic and TEE guidance. The follow-up protocol included spiral CT scanning before discharge from the hospital to assess thrombosis exclusion of the aortic false lumen, perfusion of branch vessels, and the absence of perigraft leak.