Добірка наукової літератури з теми "Restenose intrastent"

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Статті в журналах з теми "Restenose intrastent":

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Seabra Gomes, Ricardo, Pedro de Araújo Gonçalves, Rui Campante Teles, and Manuel de Sousa Almeida. "Avaliação tardia (> 10 anos) da braquiterapia intracoronária com radiação beta para restenose difusa intrastent." Revista Portuguesa de Cardiologia 33, no. 10 (October 2014): 609–16. http://dx.doi.org/10.1016/j.repc.2014.02.027.

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Setacci, Carlo, Emiliano Chisci, Francesco Setacci, Francesca Iacoponi, and Gianmarco de Donato. "Grading Carotid Intrastent Restenosis." Stroke 39, no. 4 (April 2008): 1189–96. http://dx.doi.org/10.1161/strokeaha.107.497487.

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Bajeu, Ioan-Teodor, Adelina-Gabriela Niculescu, Alexandru Scafa-Udriște, and Ecaterina Andronescu. "Intrastent Restenosis: A Comprehensive Review." International Journal of Molecular Sciences 25, no. 3 (January 30, 2024): 1715. http://dx.doi.org/10.3390/ijms25031715.

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The primary objective of this paper is to delineate and elucidate the contemporary advancements, developments, and prevailing trajectories concerning intrastent restenosis (ISR). We aim to provide a thorough overview of the most recent developments in this area, covering various aspects such as pathophysiological insights, therapeutic approaches, and new strategies for tackling the complex challenges of ISR in modern clinical settings. The authors have undertaken a study to address a relatively new medical challenge, recognizing its significant impact on the morbidity and mortality of individuals with cardiovascular diseases. This effort is driven by the need to fully understand, analyze, and possibly improve the outcomes of this emerging medical issue within the cardiovascular disease field. We acknowledge its considerable clinical implications and the necessity for innovative methods to mitigate its effects on patient outcomes. Therefore, our emphasis was directed towards elucidating the principal facets of the condition’s prevalence, expounding upon the foundational mechanisms underscoring conspicuous restenosis, and delineating the risk factors relevant in shaping the contemporary landscape of diagnostic and therapeutic modalities. This thorough examination aims to provide a comprehensive understanding of the various dimensions of the condition, including epidemiological data, pathophysiological complexities, and clinical considerations critical for evaluating and enhancing current diagnostic and treatment approaches.
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Freitas Jr, João Orávio de, Sérgio Luis Berti, José Geraldo Bonfá, Maria Sílvia Martins Speranza, Pércio Primo Gandolphi, and Hércules Lisboa Bongiovani. "Cutting balloon angioplasty for intrastent restenosis treatment." Arquivos Brasileiros de Cardiologia 72, no. 5 (May 1999): 618–20. http://dx.doi.org/10.1590/s0066-782x1999000500009.

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Chow, Wing-Hing, and T. F. Chan. "Pullback atherectomy for the treatment of intrastent restenosis." Catheterization and Cardiovascular Diagnosis 41, no. 1 (May 1997): 94–95. http://dx.doi.org/10.1002/(sici)1097-0304(199705)41:1<94::aid-ccd21>3.0.co;2-p.

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Setacci, C., E. Chisci, and F. Setacci. "Grading Carotid Intrastent Restenosis: A Six-Year Follow-Up Study." Journal of Vascular Surgery 48, no. 1 (July 2008): 247. http://dx.doi.org/10.1016/j.jvs.2008.05.052.

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Moneta, G. L. "Grading Carotid Intrastent Restenosis: A 6-Year Follow-Up Study." Yearbook of Vascular Surgery 2009 (January 2009): 55–56. http://dx.doi.org/10.1016/s0749-4041(08)79015-8.

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Choho, Zakaria, Tanae El Ghali, Walid Ben Brahim, Fatima Azzahra Benmessaoud, and Latifa Oukerraj. "CORONARY IN-STENT RESTENOSIS: A LITERATURE REVIEW." International Journal of Advanced Research 11, no. 09 (September 30, 2023): 1440–48. http://dx.doi.org/10.21474/ijar01/17667.

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Intrastent restenosis is a narrowing of the lumen of a coronary vessel previously treated with angioplasty It is the result of two histopathological processes: vascular remodeling and neointimal hyperplasia due to smooth muscle migration and proliferation, with the latter mechanism predominating. It manifests clinically with symptoms of ischemia and angiographic findings showing at least a 50% reduction in the lumen of a vessel previously treated with balloon angioplasty or a stent. Second generation drug eluting stents or drug eluting balloons are recommended for treatment, depending on the type of restenosis being treated. We present a review of the literature about of the various aspects of this topic which remains a clinical challenge for interventional cardiologists, starting from its origin its historical background.to various treatment options.
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Schiele, F. "Assessment of Balloon Angioplasty in Intrastent Restenosis With Intra Coronary Ultrasound." Journal of the American College of Cardiology 31, no. 2 (February 1998): 495A—496A. http://dx.doi.org/10.1016/s0735-1097(97)88158-2.

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Schiele, F., N. Meneveau, A. Vuillemenot, S. Gupta, D. D. Zhang, C. Xu, and J. P. Bassand. "Assessment of balloon angioplasty in intrastent restenosis with intra coronary ultrasound." Journal of the American College of Cardiology 31 (February 1998): 495–96. http://dx.doi.org/10.1016/s0735-1097(98)80509-3.

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Дисертації з теми "Restenose intrastent":

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Mougin, Justine. "Mise au point et optimisation d'un modèle lagomorphe hypercholestérolémique de resténose intra-stent et application pour le développement d'un stent obtenu par électrofilage." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILS019.

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Introduction La resténose intra-stent (RIS) reste le talon d'Achille des techniques de revascularisation endovasculaire. La supériorité des stents actifs pour l’artériopathie oblitérante des membres inférieurs n'a pas été clairement démontrée et les modèles animaux restent peu fiables pour évaluer l'efficacité des nouveaux dispositifs. L’objectif est de définir sur un modèle lagomorphe, un protocole expérimental adapté à l’étude de la RIS et l’appliquer à l’évaluation in vivo de stents recouverts d’une membrane électrofilée contenant de la simvastatine. Matériel et méthode Des stents en chrome cobalt ont été recouverts d’une membrane électrofilée composée de chitosan (106000 g/mol, 2.97 % w/v), polymère de cyclodextrine (64650 g/mol, 3.3% w/v), polyethylène oxide (PEO, 900000 g/mol, 0.33% w/v) et simvastatine (33 wt-%). Les études de libération in vivo ont été conduites dans un milieu de PBS/SDS 0,7 wt-% (pH 7,4, 37°C). Des lapins mâles adultes blancs néo zélandais ont été soumis à un régime enrichi en cholestérol (0,3 %) et huile de noix de coco (4,9 %) pendant 7 semaines suivi d’une alimentation normale. Une lésion au ballon était réalisée au niveau des axes iliaques et le stenting iliaque était réalisé par voie fémorale. Trois protocole ont été conduits : 1) évaluation les lésions histomorphologiques induites par le régime hypercholestérolémique et la lésion artérielle au ballon, 2) comparaison stents nu versus stents enduits d’éverolimus et 3) stents nus versus stents recouverts d’une membrane électrofilée contenant de la simvastatine dits stents fonctionnalisés. Résultats La quantité totale de SV chargée sur la membrane après 30 min d’électrofilage était de 4,01 μg/mm² de membrane (± 0,44 μg/mm²). Trente lapins ont été inclus dans ce travail. Le pourcentage de sténose et le pourcentage de remodelage étaient significativement plus important dans le groupe lésion au ballon par rapport au groupe « contrôle » , respectivement 49,9% ± 21,9% vs 25,7% ± 19,1% (p=0,012), 33,9% ± 18,7% vs 17,8% ± 13,4 (p< 0,001). Il n’a pas été mis en évidence de différence significative entre stents nus et stents enduits d’éverolimus. L’aire de la lumière artérielle était significativement plus faible dans le groupe stent fonctionnalisé (p=0,002). L’aire de la néointima, le pourcentage de sténose et de remodelage et le score de lésion artérielle étaient significativement plus importants dans le groupe stents fonctionnalisés (p=0,05). Conclusion Le modèle animal à 2 lésions artérielles tel que nous le proposons a été optimisé pour être reproductible et pertinent dans le cadre de la maladie athérosclérotique et de la RIS. Les résultats in vivo des stents fonctionnalisés nous indiquent de modifier la nature du polymère et de pousser les investigations sur l’action « locale » de la SV, son seuil toxique et intervalles thérapeutiques qui ne sont, à ce jour, pas déterminées
Objective: This study aimed to evaluate the use of a double injured atherosclerotic iliac rabbit model for myointimal hyperplasia evaluation. Secondarily, this animal model was use for pre clincial evaluation of a new anti-in stent restenosis simvastatin electrospun covered stent. Methods: Twenty four New Zealand White (NZW) rabbits were included in this study. In order to enhance and accelerate atherogenesis, atherogenic diet (0.3% cholesterol and 4.9% coconut oil) and mechanical endothelial injury of iliac artery were used. Twelve rabbits (24 iliac arteries) were used to evaluate the benefit of intimal balloon injury compared to the diet alone on myointimal hyperplasia. On day 7, rabbits beneficiated balloon iliac injury on the left side only. Eight weeks they were scarified and iliac arteries were harvested to histologic examination and comparaison. Twelve rabbits were included in the second evaluation to compare anti instent restenosis effect of a new drug eluting chrome-cobalt stent (DES) coated with polycyclodextrin-chitosan-simvastatin polymer after electrospinning technique. Balloon injury were performed on both iliacs on day 7, then stenting of BMS on right iliac and DES on left iliac and animals were sacrified 4 weeks later after angiography for histologic examination. Results: Balloon iliac injuries (BI) revealed a significant higher Schwartz injury score (0.599±0.368 control vs 1.150±0.306 BI, p=0.013), percentage of stenosis (25.7±19.1 control vs 49.9±21.9 BI, p=0.012) and ratio collagen (0.252 ± 0.017 control vs 0.365 ± 0.011 BI, p=0.0001) than atherosclerotic diet only. Five rabbits died before the end of the protocol. After appaired comparison of BMS and DES, results were significantly better for BMS and pre-euthanasia angiography revealed that 3/7 DES were thrombosed versus 0/7 for BMS. Conclusions : Association of atherogenic diet and balloon injuries allow to obtain important neointimal hyperplasia and wall remodeling in rabbit iliac arteries that confirm its interest as in stent restenosis model for new DES
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TOCCI, GIULIANO. "Fattori molecolari e clinici nella fisiopatologia della restenosi coronarica intrastent: ruolo della pressione arteriosa." Doctoral thesis, 2011. http://hdl.handle.net/11573/917834.

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