Open repair for thoracoabdominal aortic aneurysms precipitated by chronic aortic dissection

Abstract

Chronic dissection of the thoracoabdominal aorta may require surgical repair for aneurysm, malperfusion, or rupture. Endovascular repair is made difficult by a noncompliant dissection septum, visceral vessels arising from different lumens, and the common use of diseased aortic landing zones. Thus, open repair remains the gold standard in terms of favorable outcomes and durability. During thoracoabdominal aortic repair, we use a multimodal strategy to prevent spinal cord and visceral or renal artery ischemia; key modalities include cerebrospinal fluid drainage, left heart bypass with and without visceral protection, cold renal protection, and aggressive reimplantation of intercostal or lumbar arteries. Patients with chronic dissection require lifelong surveillance, as there is a significant risk for subsequent intervention on unrepaired aortic segments.

Keywords

Thoracoabdominal aorta / open surgery / chronic aortic dissection / type B aortic dissection / aortic aneurysm

References

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