| ORIGINAL ARTICLE |
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| Year : 2022 | Volume
: 5
| Issue : 4 | Page : 100-109 |
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The choice of bridging stents in fenestrated endovascular aortic repair
Fang Niu1, Jiaxue Bi1, Peng Li1, Guangze Luo1, Hongrui Pan1, Yonghui Chen1, Chao Qu2, Zongwei Liu1, Xiaoxing Zhang1, Xiangchen Dai1
1 Department of General Surgery, Tianjin Medical University General Hospital; Department of Tianjin General Surgery Institute, Tianjin Medical University General Hospital, Heping, Tianjin, China
2 Department of General Surgery, Changzhou Cancer Hospital, Xinbei, Changzhou, Jiangsu, China
Correspondence Address:
prof. Xiangchen Dai
Department of General Surgery, Tianjin Medical University General Hospital, 154 Anshan Road; Department of Tianjin General Surgery Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Heping, Tianjin 300052
China
 Source of Support: None, Conflict of Interest: None
DOI: 10.4103/2589-9686.376924
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PURPOSE: To study the medium and long-term patency and endoleak rate of visceral arteries in fenestrated endovascular aortic repair (fEVAR), and explore the strategies for bridging stent selection.
METHODS: The clinical data of 44 patients with thoracoabdominal aneurysms, infrarenal short-necked aortic aneurysms and aortic dissection involving the visceral artery treated using fEVAR were reviewed. The indications for stents for different visceral vessels were evaluated.
RESULTS: A total of 104 target vessels were revascularized with 7 scallops and 97 fenestrations. Among them, 12 were without stents and 92 were bridged with 96 stent-grafts, including 28 uncovered stents and 68 covered stents. The success rate of the one-time placement of bridging stents was 95.7% (88/92). The overall Type-I endoleak rate was 2.9% (3/104), and the overall visceral stent patency rate was 97.1%. The receiver operating characteristic curve revealed that the critical distances between the celiac trunk artery, superior mesenteric artery (SMA), renal artery, and aneurysm were 10.25 mm, 4.3 mm, and 10.05 mm, respectively, for selecting covered stents or uncovered stents and 12.4 mm for SMAs with or without stents.
CONCLUSION: The branch-to-aneurysm distance may be important for bridging stents choice in fEVAR.
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