TREATMENT OF AORTIC DISSECTIONS WITH A PERCUTANEOUS INTRAVASCULAR ENDOPROSTHESIS - COMPARISON OF COVERED AND BARE STENTS

被引:28
作者
KATO, N
HIRANO, T
TAKEDA, K
NAKAGAWA, T
MIZUMOTO, T
YUASA, H
SHIMIZU, Y
机构
[1] MIE UNIV, DEPT CARDIOVASC SURG, TSU, MIE 514, JAPAN
[2] KYOTO UNIV, BIOCHEM ENGN RES CTR, DEPT ARTIFICIAL ORGANS, KYOTO, JAPAN
关键词
D O I
10.1016/S1051-0443(94)71610-9
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
PURPOSE: The authors developed a percutaneous endoprosthesis for treatment of aortic dissections, The device is a Gianturco stent wrapped with Dacron or nylon mesh, Effectiveness of the covered stent versus a bare stent was compared in the treatment of acute aortic dissection. MATERIALS AND METHODS: Experimental aortic dissections were created in 10 mongrel dogs. Occlusion of intimal tears was attempted with covered stents in five dogs (group 1) and with bare stents in the remaining five dogs (group 2). RESULTS: In group 1, entry tears were obliterated within 1 day (n = 3) or 1 week (n = 2) after stent placement and false lumina were thrombosed within 1 week (n = 3) or 1 month (n = 2). In group 2, entry tears and false lumina remained patent. Histologic specimens showed that the covered stents were entirely covered with smooth neointima. CONCLUSIONS: This endoprosthesis offers an alternative to surgical treatment for dissections of the descending aorta.
引用
收藏
页码:805 / 812
页数:8
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