A Novel Reverse Branch Technique for Reconstruction of a Renal Artery Perfused by the False Lumen After Thoracic Endovascular Aortic Repair.

PURPOSE: To describe an innovative endovascular technique that successfully reconstructs a renal artery completely perfused by the false lumen after thoracic endovascular aortic repair (TEVAR).

CASE REPORT: A 65-year-old patient diagnosed with acute Stanford type B aortic dissection underwent successful TEVAR 4 years ago. Regular follow-up found that the thoracic aorta was well repaired, but the false lumen in the abdominal aorta had enlarged year by year. The left renal artery was supplied entirely by the false lumen, which caused kidney hypoperfusion. The abdominal aorta was successfully remodeled using endovascular aneurysm repair with reconstruction of the left renal artery using Viabahn stent-grafts inserted through the patent false lumen. At 6 months, computed tomography showed false lumen thrombosis and patent Viabahn stent-grafts in the false lumen.

CONCLUSION: The false lumen reverse branch technique was feasible in our case, which provides a new idea for dealing with distal dissection involving the renovisceral arteries after TEVAR.