Transient periprosthetic thickening after covered-stent implantation in the iliac artery.

Sapoval, M.; Gaux, Jean‐Claude; Long, A; Azencot, Mali; Hoffman, O; Shoenfeld, Richard; Raynaud, A

doi:10.2214/ajr.164.5.7717245

Cited by 31 publications

(16 citation statements)

References 5 publications

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“…The various complications described in relation to endovascular treatment of aortic aneurysms include endoleaks[6] (type I to type V endoleaks), graft thrombosis,[78] graft kinking,[9–11] pseudoaneurysm caused by graft infection,[81213] graft occlusion,[81415] shower embolism,[1617] colon necrosis,[1118] aortic dissection,[19] and hematoma at the arteriotomy site. [20] Out of the many advantages of MDCT, the few worth mentioning in this context are the better visualization of true and false luminal flow channels, intramural hematomas communicating with the aortic lumen, and slow perigraft flow around aortic stentgrafts.…”

Section: Discussionmentioning

confidence: 99%

Role of multidetector computed tomography in evaluating complications following endovascular repair of aortic aneurysm

Aziz

Naidu

Prasad

et al. 2010

Journal of Cardiovascular Disease Research

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Objective:To study the role of multidetector computed tomography (MDCT) in evaluating various complications following endovascular stenting of aortic aneurysms.Materials and Methods:Over a period of 2 years (June 2005 to June 2007), 50 patients with aortic aneurysm on computed tomography (CT) angiogram were prospectively studied. Images were acquired on a 64 slice multidetector row CT scanner (GE—LightSpeed VCT) after intravenous administration of nonionic iodinated contrast. Nineteen patients underwent endovascular stent-graft repair based on their medical and surgical risk factors. Stent-graft related complications were recorded by CT angiography and analyzed using descriptive statistics.Results:Most common complication related to the endovascular stent-graft placement was endoleak (44.4%), followed by puncture site hematoma (27.8%), thrombotic occlusion of a limb of the bifurcated stent graft, kinking of the stent-graft, and difficult catheterization with intimal tear in the common iliac artery were 5.6% each. Poststent diameter of the aneurysm was an important predictor of endoleaks. All the patients with either increase or no change in the aneurysm size had endoleaks.Conclusion:MDCT angiography is an important modality in identifying, describing, and following up the various complications following endovascular repair of aortic aneurysms, endoleaks being the most common complication. Decrease in the poststent diameter of the aneurysm suggested a good outcome.

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Section: Discussionmentioning

confidence: 99%

Role of multidetector computed tomography in evaluating complications following endovascular repair of aortic aneurysm

Aziz

Naidu

Prasad

et al. 2010

Journal of Cardiovascular Disease Research

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“…Perivascular and systemic inflammatory reactions were reported following placement of Dacron-coated vascular endoprostheses [11,12]. It has been discussed whether this is a reaction to the polyester itself or to manufacturing-related components [25]. Teflon is known for its hydrophobic surface properties that prevent the ingrowth of cellular components [26].…”

Section: Discussionmentioning

confidence: 99%

Vein Graft-Coated Vascular Stents: A Feasibility Study in a Canine Model

Schellhammer

Haberstroh

Wakhloo

et al. 1998

Cardiovasc Intervent Radiol

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Purpose: To evaluate different vein grafts for luminal coating of endovascular stents in normal canine arteries. Methods: Twenty-four tantalum Strecker stents were coated with either autologous (n Å 10), denatured heterologous (n Å 11), or denatured homologous vein grafts (n Å 3). The carotid artery (n Å 11) and the iliac artery (n Å 13) were stented using a transfemoral approach. Angiograms were performed at days 0, 7, and 21, and months 3, 6, and 9. All grafts underwent histological examination. Results: Eight of 10 autologous vein grafts showed patency during the whole observation period of 9 months, without histological signs of inflammation. Denatured heterologous vein grafts revealed acute (n Å 3), subacute (n Å 5), or delayed (n Å 3) vessel occlusion. Hyaloid transformation of the vein graft and lymphoplasmacellular formations were seen. Denatured homologous vein grafts showed acute vessel occlusion. Although significant inflammatory tissue response was seen, no host-versus-graft reaction was present. Conclusion: Autologous vein graft-coated stents showed good biocompatibility in canine arteries. Preparation was cumbersome and required surgical venaesectio. Denatured vein grafts, however, were limited by inflammatory reactions.

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“…W~ihrend Riesenzellen als Ausdruck einer Fremdk6rperreaktion vereinzelt auch nach Implantationen von nichtummantelten Stents beobachtet werden [1], ist in allen bisherigen Berichten, die sich mit nichtummantelten Stents besch~iftigten, nie eine transmurale Entzª oder eine spezifische Reaktion der Gef~igwand auf das Fremdmaterial beobachtet worden. Eine entzª Fremdk6rperreaktion auf das Polyestermaterial wurde bereits mehrfach nach Implantation in periphere Arterien diskutiert [10,11,20]. Eine Erkl~irung fª die Induktion einer 6rtlichen Toxizit~it k6nnten die Produktionsvorg~inge bei der Polyesterherstellung sein, bei der Salze, Schwermetalle, stickstoffhaltige aromatische organische Verbindungen und Antioxidationsmittel verwendet werden.…”

Section: Materials Und Methodeunclassified

Interventionelle Therapie von Karotisaneurysmen mit Stents

et al. 1998

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Zusammenfassung: Ziel der Arbeit ist die Untersuchung der Effizienz ummantelterStents bei der Behandlung von breitbasigen Karotisaneurysmen und ihrer Biokompatibilit~it. Karotisaneurysmen wurden an einem Tiermodell mit Hilfe eines Sackes, der aus der Jugularvene geformt wurde, konstruiert und mit ummantelten Polyester-Stents therapiert. Nach Durchfª der Kontrollangiographien in verschiedenen Intervallen wurden die Tiere get6tet und die entnommenen Gef~iBe histopathologisch aufgearbeitet. Die angefertigten Paraffinschnitte wurden rnit H~imatoxylin-Eosin und Elastica-van-Gieson gef~rbt. Bei p¡ sehr guter Ausschaltung der Aneurysmen zeigte sich eine hohe VerschluBrate der ummantelten Polyester-Stents. Die schlechte Biokompatibilit~it der hier verwendeten urnmantelten Polyester-Stents hat negative Auswirkungen auf die Offenheitsrate. Schlª Karotisaneurysmen 9 Interventionelle Therapie -Stents Interventional Therapy of Carotid Aneurysms with StentsAbstract: The purpose of this study was to investigate the efficacy of coated polyester stents for the treatment of wide necked carotid aneurysms and to test their biocompatibility. Carotid aneurysms were created in an animal model by forming a pouch from the jugular vein and then treated by placement of coated stents. After performing control angiography at different intervals the animals were sacrificed. Histologic evaluation of the treated arteries was performed. The paraffin slices were stained with hematoxylin-eosin and elastica-van Gieson solution. Although p¡ exclusion of the aneurysms was effective, there was a high rate of occlusion of the coated polyester stents. The limited biocompatibility of the used coated polyester stents is responsible for the poor patency rate.

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Transient periprosthetic thickening after covered-stent implantation in the iliac artery.

Cited by 31 publications

References 5 publications

Role of multidetector computed tomography in evaluating complications following endovascular repair of aortic aneurysm

Role of multidetector computed tomography in evaluating complications following endovascular repair of aortic aneurysm

Vein Graft-Coated Vascular Stents: A Feasibility Study in a Canine Model

Interventionelle Therapie von Karotisaneurysmen mit Stents

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