2、MATERIALS AND METHODS
This study was approved by the institutional review board of ***.
Between July 2019 and January 2020, five patients with advanced head and
neck squamous cell carcinoma (AHNSCC) invading one side of the carotid
artery, underwent intra-arterial covered stent placement of the CCA/ICA
prior tumor resection at ***.
The preoperative angiography (Figure 1A ) were performed to
assess the severity of extrinsic tumor compression to the carotid
artery. Covered stent (GORE VIABAHN, W.L.Gore& Associates, lnc. USA)
was placed intra-arterially at least 1 cm proximal and distal beyond the
area of tumor involvement. Each patient was administered low molecular
weight heparin (LMWH) 5000IU daily for 6-10 days. Oncologic tumor
resection was performed 2 to 3 days after stent placement. The tumor and
the involved carotid artery were resected en bloc , and pectoralis
major flap transfer was utilized for coverage of the great vessels
supported with intra-arterial covered stent.