Percutaneous In Situ Microneedle Puncture Fenestration via the Left Subclavian Artery for branched Thoracic Endovascular Aortic Repair.

This study explored the feasibility of a totally percutaneous approach to perform in situ microneedle puncture fenestration during thoracic endovascular aortic repair (TEVAR) via access from the left subclavian artery (LSA). In total, 23 patients with either thoracic aortic dissection or thoracic aortic aneurysm were treated with in situ LSA fenestration during TEVAR. The procedure was technically successful in all the patients. No serious complications occurred during a mean 9-month follow-up period. In situ microneedle puncture fenestration during TEVAR via the LSA is a feasible and effective method for LSA reconstruction.