Case Report: Aberrant Left Vertebral Artery Management in Traumatic Transection of the Aortic Isthmus.

Association of elective debranching and endovascular thoracic aortic repair (TEVAR) with aberrant left vertebral artery (AVA) revascularization and supra-aortic left carotid-subclavian bypass in post-traumatic pseudoaneurysm of the distal aortic arch are extremely rare procedures that can minimize unnecessary neurologic complications. The patient was a 42-year-old man, stable, with a post-traumatic transection of the aortic isthmus, with origin of the AVA between the left common carotid artery (LCCA) and left subclavian artery (LSA). Preoperative planning and proper sizing of the stent-grafts were evaluated by means of computed tomography angiography (CT scan) images. The patient underwent a hybrid procedure that included TEVAR with landing zone 2, covering the origin of both the AVA and LSA and concomitant supra-aortic reimplantation of the AVA in the LCCA and left carotid-subclavian bypass combined with both ligation of the AVA and LSA proximally. Postoperative arteriography images confirmed the exclusion of the aneurysm and the patency of all arch vessels, including the AVA. No endoleak was reported.

Descending Thoracic Aortic Aneurysm Rupture Treated with Thoracic Endovascular Aortic Repair in a Patient with Peripheral Artery Disease.

Descending thoracic aortic aneurysm rupture is a life-threatening disease associated with high rates of morbidity and mortality. Treatment in these cases is a surgical emergency. Less invasive therapies for the treatment of this pathology have been developed over time. For descending thoracic aneurysm rupture, endovascular stent grafting is less invasive, life-saving, and a unique alternative to open repair. However, this approach is subject to anatomical and logistic limitations. The purpose of the present study is to report a case of an emergency endovascular repair for a ruptured thoracic aortic aneurysm in a patient with peripheral arterial disease, and to discuss some important issues related to this approach. Severe calcifications were discovered in this patient on both iliac arteries, and the remaining circulated lumen was less than 2 to 3 mm. Unfortunately, only catheter insertion into the left iliac artery for angiography was able to determine the development of a dissection in the arterial wall. We decided to dilate both iliac arteries with partial stabilization of the dissection on the right iliac artery which allowed us to successfully continue the endovascular procedure. After 24 hours, the patient experienced right limb ischemia, and revascularization of the affected limb was achieved by performing a right axillofemoral bypass.