Successful exclusion of an aortic aneurysm with a novel PTFE-tube covered cobalt-chromium stent in a pediatric patient with native coarctation of the aorta

2018 ◽  
Vol 92 (5) ◽  
pp. 930-934 ◽  
Author(s):  
Johannes Nordmeyer ◽  
Peter Kramer ◽  
Felix Berger ◽  
Stephan Schubert
Keyword(s):  
Aortic Aneurysm ◽  
Pediatric Patient ◽  
Coarctation Of The Aorta ◽  
Cobalt Chromium ◽  
Cobalt Chromium Stent

scholarly journals One-stage surgical approach to coarctation of the aorta and ascending aortic aneurysm

2014 ◽  
Vol 115 (09) ◽  
pp. 593-596
Author(s):  
F. Sabol ◽  
L. Mistrikova ◽  
A. Kolesar ◽  
J. Luczy ◽  
T. Toporcer ◽  
...  
Keyword(s):  
Aortic Aneurysm ◽  
Surgical Approach ◽  
Coarctation Of The Aorta ◽  
Ascending Aortic Aneurysm ◽  
One Stage

scholarly journals A rare case of pseudoaneurysm at the site of untreated coarctation of the aorta in an adult patient

2020 ◽  
Author(s):  
Takuma Mikami ◽  
Takeshi Kamada ◽  
Hiroki Uchiyama ◽  
Yosuke Kuroda ◽  
Ryo Harada ◽  
...  
Keyword(s):  
High Risk ◽  
Aortic Aneurysm ◽  
Aortic Coarctation ◽  
Poor Prognosis ◽  
Rare Case ◽  
Surgical Repair ◽  
Coarctation Of The Aorta ◽  
Pathological Findings ◽  
Open Surgical Repair ◽  
Risk Of Rupture

Abstract Here we report a rare case of pseudoaneurysm at the site of aortic coarctation. Aortic coarctation and a saccular aortic aneurysm protruding from the site of this coarctation were detected in a 50-year-old woman. Owing to the shape of the aneurysm and high risk of rupture, an open surgical repair was performed. The pathological findings of the removed aneurysm revealed a pseudoaneurysm consisting of only a thin adventitial wall. Adult uncorrected aortic coarctation has a poor prognosis. One of its causes may be the formation of such a pseudoaneurysm.

scholarly journals Testing bioresorbable stent feasibility in a rat aneurysm model

2019 ◽  
Vol 11 (10) ◽  
pp. 1050-1054 ◽  
Author(s):  
Basil Erwin Grüter ◽  
Dominik Täschler ◽  
Fabio Strange ◽  
Jeannine Rey ◽  
Michael von Gunten ◽  
...  
Keyword(s):  
Inflammatory Responses ◽  
Treatment Options ◽  
Cerebral Aneurysms ◽  
Parent Artery ◽  
Cobalt Chromium ◽  
Inflammatory Reactions ◽  
Male Wistar Rats ◽  
Bioresorbable Stent ◽  
Cobalt Chromium Stent ◽  
Aneurysm Model

BackgroundAdvances in stent-assisted coiling have incrementally expanded endovascular treatment options for complex cerebral aneurysms. After successful coil consolidation and aneurysm occlusion, endovascular scaffolds are no longer needed. Thus, bioresorbable stents that disappear after aneurysm healing could avoid future risks of in-stent thrombosis and the need for lifelong antiplatelet therapy.ObjectiveTo assess the applicability and compatibility of a bioresorbable magnesium- alloy stent (brMAS) for assisted coiling.MethodsSaccular sidewall aneurysms were created in 84 male Wistar rats and treated with brMAS alone, brMAS + aspirin, or brMAS + coils + aspirin. Control groups included no treatment (natural course), solely aspirin treatment, or conventional cobalt–chromium stent + coils + aspirin treatment. After 1 and 4 weeks, aneurysm specimens were harvested and macroscopically, histologically, and molecularly examined for healing, parent artery perfusion status, and inflammatory reactions. Stent degradation was monitored for up to 6 months with micro-computed and optical coherence tomography.ResultsAneurysms treated with brMAS showed advanced healing, neointima formation, and subsequent stent degradation. Additional administration of aspirin sustained aneurysm healing while reducing stent-induced intraluminal and periadventitial inflammatory responses. No negative interaction was detected between platinum coils and brMAS. Progressive brMAS degradation was confirmed.ConclusionsbrMAS induced appropriate healing in this sidewall aneurysm model. The concept of using bioresorbable materials to promote complete aneurysm healing and subsequent stent degradation seems promising. These results should encourage further device refinements and clinical evaluation of this treatment strategy for cerebrovascular aneurysms.

Randomized comparative trial of a thin-strut bare metal cobalt-chromium stent versus a sirolimus-eluting stent for coronary revascularization

2007 ◽  
Vol 69 (6) ◽  
pp. 790-798 ◽  
Author(s):  
Paolo Ortolani ◽  
Antonio Marzocchi ◽  
Cinzia Marrozzini ◽  
Tullio Palmerini ◽  
Francesco Saia ◽  
...  
Keyword(s):  
Coronary Revascularization ◽  
Comparative Trial ◽  
Bare Metal ◽  
Cobalt Chromium ◽  
Cobalt Chromium Stent ◽  
Sirolimus Eluting Stent

Treatment of intracranial atherosclerotic arterial stenoses with a balloon-expandable cobalt chromium stent (Coroflex Blue): procedural safety, efficacy, and midterm patency

2009 ◽  
Vol 52 (7) ◽  
pp. 645-651 ◽  
Author(s):  
Zsolt Vajda ◽  
Elina Miloslavski ◽  
Thomas Güthe ◽  
Elisabeth Schmid ◽  
Christoph Schul ◽  
...  
Keyword(s):  
Cobalt Chromium ◽  
Cobalt Chromium Stent ◽  
Arterial Stenoses

Neointimal hyperplasia in a thin-strut cobalt–chromium stent: Insights from detailed 3-D intravascular ultrasound analysis

2010 ◽  
Vol 145 (1) ◽  
pp. 125-126 ◽  
Author(s):  
Hiromasa Otake ◽  
Junya Ako ◽  
Katsuhisa Waseda ◽  
Ryota Sakurai ◽  
Atsushi Hirohata ◽  
...  
Keyword(s):  
Intravascular Ultrasound ◽  
Neointimal Hyperplasia ◽  
Cobalt Chromium ◽  
Cobalt Chromium Stent

scholarly journals Time Course of Reendothelialization of Stents in a Normal Coronary Swine Model

2011 ◽  
Vol 48 (6) ◽  
pp. 1109-1117 ◽  
Author(s):  
A. Pérez de Prado ◽  
C. Pérez-Martínez ◽  
C. Cuellas-Ramón ◽  
J. Manuel Gonzalo-Orden ◽  
M. Regueiro-Purriños ◽  
...  
Keyword(s):  
Time Course ◽  
Cell Types ◽  
Percutaneous Transluminal Coronary Angioplasty ◽  
Giant Cells ◽  
Swine Model ◽  
Cobalt Chromium ◽  
Drug Eluting ◽  
Late Thrombosis ◽  
Cobalt Chromium Stent ◽  
Transluminal Coronary Angioplasty

Late thrombosis of coronary drug-eluting stents is an infrequent but serious complication of percutaneous transluminal coronary angioplasty. The best predictor of this event is the lack of endothelialization of stent struts. The objective of this study is to characterize and quantify the time course of endothelialization of different stents implanted in nonatherosclerotic swine coronary arteries. Thirty-three Carbofilm-coated stents were implanted percutaneously in 11 anesthetized domestic, crossbred pigs (weight 25 ± 3 kg, 2 months old). Each animal received 1 stainless steel stent (SS), 1 cobalt-chromium stent (CCS), and 1 tacrolimus-eluting stent (TES) in each coronary artery. Follow-up periods were 1 day (n = 9 stents), 3 days (n = 9 stents), and 7 days (n = 15 stents). Longitudinal sections of the stented vessels were examined using scanning electron microscopy. At 1 day, there was scarce, patchy endothelialization with areas of fibrin; the endothelialization rate was similar for all the stents (SS, 29% ± 23%; CCS, 29% ± 24%; TES, 31% ± 25%; P = .9). At 3 days, there were more endothelial cells but with immature features and giant cells over fibrin; the endothelialization was greater in SS and CCS than in TES (SS, 79% ± 14%; CCS, 81% ± 17%; TES, 46% ± 9%; P = .007). At 7 days, arteries showed better endothelialization with few giant cells; the endothelialization was greater in SS and CCS than in TES (SS, 95% ± 4%; CCS, 98% ± 4%; TES, 79% ± 9%; P = .01). In conclusion, the described model is useful for the analysis of endothelialization of coronary stents and facilitates measurement of its rate of formation and characterization of the involved cell types.

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