Perigraft leak of an aortic stent graft due to material fatigue
| Autor: | A. Rott, Werner A. Kaiser, J. Söldner, T Böhm |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Male
medicine.medical_specialty Leak medicine.medical_treatment Polypropylenes Aneurysm Suture (anatomy) medicine.artery Alloys medicine Humans Radiology Nuclear Medicine and imaging Ligature Aged Aorta medicine.diagnostic_test business.industry Abdominal aorta Angiography Digital Subtraction Stent General Medicine medicine.disease Surgery Equipment Failure Analysis Angiography Equipment Failure Stents Radiology business Aortic Aneurysm Abdominal |
| Zdroj: | American Journal of Roentgenology. 172:1355-1357 |
| ISSN: | 1546-3141 0361-803X |
| DOI: | 10.2214/ajr.172.5.10227516 |
| Popis: | 2% on average, and operative mortality rates were between 2% and 4% 11]. Because of this relatively high mortality rate and frequent complications during and after surgical treatment of aortic aneurysms in high-risk patients, a general trend toward minimally invasive techniques emerged. leading to the development of transfemoral implantable stents. During feasibility studies with sheep, small pigs. and dogs [21. stent design and implantation techniques improved rapidly. The first transfemoral implantations in humans were reported by Parodi et al. 131 and Volodos et al. [41 in 199 1 . Since then. the first short-term follow-up studies have shown that transfemoral implantable stents can be a valuable alternative to surgery [5, 6]. Long-term results are not yet available, but controlled clinical multicentric studies are already in progress [7]. The first aortic stent commercially available in Europe was the Stentor device (Minimally Invasive Technologies, Freeport, Bahama Islands), a larger version of the Cragg EndoPro System I (Minimally Invasive Technologies) [2]. The Stentor device is constructed of shape-memory nitinol monofilaments fastened together by a 7-0 polypropylene ligature into a tubular zigzag configuration. The resulting metallic framework is covered by thin woven polyester fabric (6]. In our report. the covering of the stent had a longitudinal suture. In later versions of the stent. the suture was replaced by seamless tubular woven material. |
| Databáze: | OpenAIRE |
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