Suitability of incorporated vascular stents for surgical patch-plasty: an experimental study
| Autor: | Dierk Vorwerk, Rolf W. Günther, Christoph Rosenbaum, Stefan Biesterfeld, Karl Schürmann, Tadeusz Stopinski, Klaus Eckert |
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| Rok vydání: | 1995 |
| Předmět: |
medicine.medical_specialty
Intimal hyperplasia medicine.medical_treatment Dehiscence Jugular vein Materials Testing Surgical Wound Dehiscence medicine Animals Radiology Nuclear Medicine and imaging cardiovascular diseases Ultrasonography Doppler Color Polytetrafluoroethylene Vascular Patency Hyperplasia Sheep medicine.diagnostic_test business.industry Ultrasound Suture Techniques Angiography Stent Thrombosis Prostheses and Implants Vascular surgery equipment and supplies medicine.disease Aneurysm Microradiography Surgery surgical procedures operative medicine.anatomical_structure Carotid Arteries Feasibility Studies Stents Radiology Jugular Veins Cardiology and Cardiovascular Medicine business Tunica Intima Artery Follow-Up Studies |
| Zdroj: | Cardiovascular and interventional radiology. 18(4) |
| ISSN: | 0174-1551 |
| Popis: | Purpose: Evaluate the feasibility of expanding arterial and venous stents incorporated into the vessel wall by surgical patch-plasty in an experimental study. Methods: An 8-mm Wallstent was percutaneously implanted into the carotid artery of 11 sheep and into the ipsilateral jugular vein in three of them. Three months after implantation, a patch-plasty was performed on the incorporated stents using a 0.4-mm-thick synthetic patch made of polytetrafluoroethylene (PTFE). Stent patency was monitored by color-coded duplex ultrasound and angiography for 6 months after operation. Results: No suture dehiscence or aneurysm formation were observed. Nine of 11 arterial and 2 of 3 venous stents remained fully patent during follow-up. In arteries, complications encountered were a complete stent thrombosis early after surgery, as well as a floating thrombus in the stent, found at final angiography after 6 months. In veins, one partial stent thrombosis was observed. Microradiographic and histological examinations revealed marked intimal hyperplasia in both arterial and venous stents. Intimal hyperplasia was significantly more pronounced in patched than in stented arterial segments (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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