Abstract
A 65-year-old man, with previous open surgical repair of an infrarenal abdominal aortic,
presented with acute complicated (paraplegia) Type B aortic dissection. He successfully
underwent endovascular repair of the descending thoracic and abdominal aorta. Following
the procedure, the neurological manifestations resolved. As he had a concomitant aneurysm
of the right hypogastric artery (HGA), we executed a 10-minute balloon occlusion of
this artery with evoked potential measurements to assess the risk of spinal cord ischemia
after exclusion of the right HGA. The examination was interpreted as negative, and
we proceeded with coil embolization of the right HGA and subsequent placement of an
endograft landing distally within the external iliac artery. The postoperative course
was totally uneventful, and the patient was discharged home 4 days after the operation.
Computed tomography angiography follow-up at 1, 6, 12 and 24 months showed patency
of all endografts without any signs of endoleak and effective remodeling of the descending
thoracic aorta with volume reduction of the false lumen.
Keywords
hypogastric artery - spinal cord ischemia - endovascular aortic surgery - acute aortic
dissection - evoked potentials