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Intravascular stent

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https://www.readbyqxmd.com/read/28427600/carotid-artery-stenting-investigation-of-plaque-protrusion-incidence-and-prognosis
#1
Masashi Kotsugi, Katsutoshi Takayama, Kaoru Myouchin, Takeshi Wada, Ichiro Nakagawa, Hiroyuki Nakagawa, Toshiaki Taoka, Shinichiro Kurokawa, Hiroyuki Nakase, Kimihiko Kichikawa
OBJECTIVES: This study sought to clarify the incidence and prognosis of PP in carotid artery stenting (CAS). BACKGROUND: Projections thought to be plaque may be observed inside the stent on angiography or intravascular ultrasound (IVUS) during CAS. Known as plaque protrusion (PP), the incidence and prognosis of this complication are unclear. METHODS: A total of 354 consecutive carotid atherosclerotic stenoses in 328 patients (285 men, 43 women; age range 51 to 97 years [mean age 73...
April 24, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28401193/intravascular-treatment-of-left-subclavian-artery-aneurysm-coexisting-with-aortic-coarctation-in-an-adult-patient
#2
Ryszard Pogorzelski, Tomasz Wołoszko, Sadegh Toutounchi, Patryk Fiszer, Ewa Krajewska, Wawrzyniec Jakuczun, Małgorzata M Szostek, Krzysztof Celejewski, Zbigniew Gałązka
Coexistence of aortic coarctation with aneurysm of subclavian artery is a uncommon situation and may require unusual treatment in patients. A 40-year-old patient diagnosed incidentally with left subclavian artery aneurysm coexisting with aortic coarctation. Patient was initially referred for hybrid treatment. Initially ostium of the left subclavian artery was covered with a stent-graft. Over a 30-month follow-up period aneurysm became thrombosed all the way up to the ostium of internal mammary artery. The patient did not present with neurological symptoms or signs of upper limb ischemia...
January 2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28398396/-bioresorbable-vascular-scaffolds-clinical-experience-of-the-emilia-romagna-region-italy
#3
Alberto Menozzi, Gianluca Calogero Campo, Vincenzo Guiducci, Gianni Dall'Ara, Andrea Santarelli, Paolo Sbarzaglia, Marco Balducelli, Paolo Magnavacchi, Fabio Sgura, Luciano Losi, Luigi Vignali, Gianni Casella, Luigi Steffanon, Fabio Tarantino, Francesco Saia
BACKGROUND: The bioresorbable vascular scaffold (BRS) technology constitutes the new revolution of the coronary artery disease interventional treatment. Currently, three distinct types of BRSs are available but only one, the Absorb BVS, was on the market in 2013 when the Regional Commission for Medical Devices and the Cardiology and Cardiac Surgery Commission of the Emilia-Romagna Region drew up a technical and scientific essay to provide guidance for the introduction of BRS in public and affiliated health facilities...
February 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28389294/comparison-of-aspire-mechanical-thrombectomy-versus-angiojet-thrombectomy-system-in-a-porcine-iliac-vein-thrombosis-model
#4
Roy J Weinberg, Tamuru Okada, Aaron Chen, Walter Kim, Changyi Chen, Peter H Lin
PURPOSE: To compare the efficacy and safety profile of the AngioJet thrombectomy device and ASPIRE thrombectomy system in a porcine venous thrombosis model. MATERIALS AND METHODS: Twelve adult pigs underwent bilateral iliac venous thrombosis created by using a stent-graft thrombosis model, and subsequently underwent either AngioJet (n = 6) or ASPIRE mechanical thrombectomy (n = 6) one week later. Intravascular ultrasound (IVUS) was used to assess thrombectomy efficacy, and computed tomography was used to evaluate pulmonary embolism (PE)...
April 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28374620/thrombin-generation-test-for-evaluation-of-antiplatelet-treatment-in-patients-with-coronary-artery-disease-after-percutaneous-coronary-intervention
#5
Gelena Berezovskaya, Olga Smirnova, Eduard Malev, Nikita Khromov-Borisov, Elena Klokova, Mikhail Karpenko, Lyudmila Papayan, Nikolay Petrishchev
To study the possibility of using thrombin generation tests in platelet-rich and platelet-poor plasma for evaluation of dual antiplatelet therapy efficacy in patients with coronary artery disease (CAD), following percutaneous coronary intervention. Venous blood was analyzed from CAD patients aged 53-75 years who had undergone percutaneous coronary intervention with stenting within one year and had been receiving standard doses of clopidogrel and aspirin (75 and 75-100 mg per day, respectively). The control group comprised age- and sex-matched subjects without clinical signs of CAD who were not receiving these drugs...
April 4, 2017: Platelets
https://www.readbyqxmd.com/read/28359716/pretreatment-with-and-ongoing-use-of-omega-3-fatty-acid-ethyl-esters-reduce-the-slow-flow-phenomenon-and-prevent-in-stent-restenosis-in-patients-undergoing-carotid-artery-stenting
#6
Ichiro Nakagawa, Hun Soo Park, Shohei Yokoyama, Takeshi Wada, Syuichi Yamada, Yasushi Motoyama, Kimihiko Kichikawa, Hiroyuki Nakase
OBJECTIVE: Carotid artery stenting (CAS) is a less invasive alternative to carotid endarterectomy, but it is essential to prevent thromboembolic complications during CAS and to suppress in-stent restenosis (ISR) after CAS because of the relatively high risk of periprocedural and follow-up stroke events. Clinical trials have demonstrated the strong relationship of carotid plaque vulnerability with the subsequent risk of ipsilateral ischemic stroke and thromboembolic complications during CAS...
March 27, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28344627/intravascular-ultrasonography-guided-60-mm-long-drug-eluting-tapered-stent-implantation-in-a-long-calcified-lesion-in-a-patient-with-stable-coronary-artery-disease
#7
Jakub Podolec, Jakub Baran, Łukasz Niewiara, Piotr Odrowąż-Pieniążek, Krzysztof Żmudka
No abstract text is available yet for this article.
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28344214/the-outcomes-of-intravascular-ultrasound-guided-drug-eluting-stent-implantation-among-patients-with-complex-coronary-lesions-a-comprehensive-meta-analysis-of-15-clinical-trials-and-8-084-patients
#8
Zhong Guo Fan, Xiao Fei Gao, Xiao Bo Li, Ming Xue Shao, Ya Li Gao, Shao Liang Chen, Nai Liang Tian
OBJECTIVE: The effects of intravascular ultrasound (IVUS)-guided drug-eluting stent (DES) implantation in patients with complex coronary artery lesions remains to be controversial. This study sought to evaluate the outcomes of IVUS guidance in these patients. METHODS: The EMBASE, Medline, and other internet sources were searched for relevant articles. The primary endpoint was major adverse cardiac events (MACE), including all-cause mortality, myocardial infarction (MI), and target-vessel revascularization (TVR)...
March 22, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28342839/a-case-of-severely-calcified-neoatherosclerosis-after-paclitaxel-eluting-stent-implantation
#9
Kei Yamamoto, Kenichi Sakakura, Yousuke Taniguchi, Hiroshi Wada, Shin-Ichi Momomura, Hideo Fujita
A 79-year-old male who had a history of coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) received coronary angiography (CAG), because of angina pectoris. CAG showed in-stent restenosis of the paclitaxel-eluting stent (PES). Since the devices could not pass the lesion, we performed rotational atherectomy. Although we could not identify the calcified lesion by the optical frequency domain imaging (OFDI) findings because of strong attenuation, the intravascular ultrasound (IVUS) image showed the superficial calcification...
March 15, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28342663/intramural-coronary-hematoma-a-complex-three-dimensional-entity-multimodality-assessment
#10
Iván J Núñez-Gil, Mauro Echavarría-Pinto, Gisela Feltes, Antonio Fernández-Ortiz
A 62-year-old woman was admitted with chest pain of two hours' duration, ECG changes in the precordial leads and left ventricular ejection fraction of 30% on the echocardiogram. Emergent catheterization demonstrated severe flow disturbance in the left coronary artery. An intra-aortic balloon pump and a drug-eluting stent were implanted. However, the flow disturbance persisted. Optical coherence tomography followed by intravascular ultrasound provided crucial data on the mechanism and helped to optimize treatment in this critical patient...
April 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28327450/impact-of-attenuated-signal-plaque-observed-by-intravascular-ultrasound-on-vessel-response-after-drug-eluting-stent-implantation
#11
Hideki Kitahara, Katsuhisa Waseda, Kenji Sakamoto, Ryotaro Yamada, Ching-Chang Huang, Daisaku Nakatani, Kenji Sakata, Osami Kawarada, Paul G Yock, Yutaka Matsuyama, Hiroyoshi Yokoi, Masato Nakamura, Toshiya Muramatsu, Shinsuke Nanto, Peter J Fitzgerald, Yasuhiro Honda
BACKGROUND AND AIMS: The aim of this study was to investigate the impact of attenuated-signal plaque (ASP) observed by intravascular ultrasound (IVUS) on vessel response after drug-eluting stent implantation. METHODS: Data were derived from the IVUS cohort of the J-DESsERT trial comparing paclitaxel- and sirolimus-eluting stents. Serial IVUS analysis (pre- and post-intervention, and 8-month follow-up) was performed in 136 non-AMI lesions. ASP was defined as hypoechoic plaque with ultrasound attenuation without calcification...
April 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28321242/aggressive-plaque-modification-with-rotational-atherectomy-and-cutting-balloon-for-optimal-stent-expansion-in-calcified-lesions
#12
Zhe Tang, Jing Bai, Shao-Ping Su, Pui-Wai Lee, Liang Peng, Tao Zhang, Ting Sun, Jing-Guo Nong, Tian-De Li, Yu Wang
OBJECTIVE: To evaluate the factors affecting optimal stent expansion in calcified lesions treated by aggressive plaque modification with rotational atherectomy (RA) and a cutting balloon (CB). METHODS: From January 2014 to May 2015, 92 patients with moderate to severe coronary calcified lesions underwent rotational atherectomy and intravascular ultrasound imaging at Chinese PLA General Hospital (Beijing, China) were included in this study. They were divided into a rotational artherectomy combined with cutting balloon (RACB) group (46 patients treated with RA followed by CB angioplasty) and an RA group (46 patients treated with RA followed by plain balloon angioplasty)...
December 2016: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28314673/can-we-perform-rotational-atherectomy-in-patients-with-severe-aortic-stenosis-substudy-from-the-ocean-tavi-registry
#13
Toru Naganuma, Hiroyoshi Kawamoto, Kensuke Takagi, Hiroto Yabushita, Satoru Mitomo, Yusuke Watanabe, Shinichi Shirai, Motoharu Araki, Norio Tada, Futoshi Yamanaka, Masanori Yamamoto, Hirokazu Onishi, Sunao Nakamura, Akihiro Higashimori, Minoru Tabata, Kazuki Mizutani, Hiroshi Ueno, Kentaro Hayashida
PURPOSE: The aim of this study was to report the safety of coronary rotational atherectomy (RA) in patients with severe aortic stenosis (AS). RA in the clinical setting seems challenging because coronary slow flow leads to hemodynamic instability. METHODS: Between October 2013 and May 2016, 1401 patients in the Optimized transCathEter vAlvular iNtervention (OCEAN) registry in Japan underwent transcatheter aortic valve implantation (TAVI). The primary study endpoint was procedural success, defined as residual stenosis <20% with final Thrombolysis in Myocardial Infarction flow 3...
February 28, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28283423/echolucency-of-the-carotid-artery-is-associated-with-short-term-plaque-progression-and-positive-remodeling-in-the-culprit-coronary-artery-in-ami-survivors
#14
Mika Futamata, Satoshi Matsuoka, Takuya Shimizu, Toru Yoshizaki, Jun-Ei Obata, Takamitsu Nakamura, Daisuke Fujioka, Yosuke Watanabe, Kazuto Nakamura, Kazuhiro Watanabe, Kiyotaka Kugiyama
BACKGROUND: Rapid plaque progression and positive remodeling are recognized as vulnerable coronary plaque characteristics. This study examined whether serial carotid ultrasonography might be of value for assessment of coronary plaque progression and positive remodeling, measured by serial intravascular ultrasound (IVUS), in survivors of acute myocardial infarction (AMI). METHODS: Thirty-nine patients with AMI had repeated examinations by IVUS of culprit coronary arteries and echolucency of the coronary artery on admission (1st test) and 6 months later (2nd test)...
March 7, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28274573/in-hospital-and-1-year-outcomes-of-rotational-atherectomy-and-stent-implantation-in-patients-with-severely-calcified-unprotected-left-main-narrowings-from-the-multicenter-rotate-registry
#15
Alfonso Ielasi, Hiroyoshi Kawamoto, Azeem Latib, Giacomo G Boccuzzi, Gennaro Sardella, Roberto Garbo, Emanuele Meliga, Fabrizio D'Ascenzo, Patrizia Presbitero, Sunao Nakamura, Antonio Colombo
Heavily calcified unprotected left main (ULM) disease continues to be a challenging situation and represent a high-risk subset for interventional cardiologist. To date, there are limited data investigating the results after rotational atherectomy (RA) in this setting. The aim of this study was to investigate the in-hospital and 1-year outcomes after RA of heavily calcified ULM lesions. A retrospective cohort analysis was performed on all calcified patients with ULM (n = 86) enrolled in the multicenter international ROTATE registry (overall patients, n = 962)...
February 9, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28268057/renal-sympathetic-denervation-system-via-intraluminal-ultrasonic-ablation-therapeutic-intravascular-ultrasound-design-and-preclinical-evaluation
#16
Gil Chernin, Iris Szwarcfiter, Yvonne Bausback, Michael Jonas
PURPOSE: To assess the safety and performance of a nonfocused and nonballooned ultrasonic (US) catheter-based renal sympathetic denervation (RDN) system in normotensive swine. MATERIALS AND METHODS: RDN with the therapeutic intravascular US catheter was evaluated in 3 experiments: (i) therapeutic intravascular US RDN vs a control group of untreated animals with follow-up of 30, 45, and 90 days (n = 6; n = 12 renal arteries for each group); (ii) therapeutic intravascular US RDN vs radiofrequency (RF) RDN in the contralateral artery in the same animal (n = 2; n = 4 renal arteries); and (iii) therapeutic intravascular US RDN in a recently stent-implanted renal artery (n = 2; n = 4 renal arteries)...
March 3, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28267472/intravascular-ultrasound-guided-vs-angiography-guided-drug-eluting-stent-implantation-in-complex-coronary-lesions-meta-analysis-of-randomized-trials
#17
Chirag Bavishi, Partha Sardar, Saurav Chatterjee, Abdur Rahman Khan, Arpit Shah, Sameer Ather, Pedro A Lemos, Pedro Moreno, Gregg W Stone
The relative outcomes of intravascular ultrasound (IVUS)-guided percutaneous coronary intervention (PCI) compared with angiography-guided PCI with drug-eluting stent (DES) in complex lesions have not been established. We sought to compare the efficacy and safety of IVUS-guided PCI with angiography-guided PCI in patients with complex coronary lesions treated with DES. METHODS: Electronic databases were searched to identify all randomized trials comparing IVUS-guided vs angiography-guided DES implantation...
March 2017: American Heart Journal
https://www.readbyqxmd.com/read/28263863/the-influence-of-surface-chemistry-on-adsorbed-fibrinogen-conformation-orientation-fiber-formation-and-platelet-adhesion
#18
Liudi Zhang, Brendan Casey, Dennis K Galanakis, Clement Marmorat, Shelby Skoog, Katherine Vorvolakos, Marcia Simon, Miriam H Rafailovich
Thrombosis is a clear risk when any foreign material is in contact with the bloodstream. Here we propose an immunohistological stain-based model for non-enzymatic clot formation that enables a facile screen for the thrombogenicity of blood-contacting materials. We exposed polymers with different surface chemistries to protease-free human fibrinogen. We observed that on hydrophilic surfaces, fibrinogen is adsorbed via αC regions, while the γ400-411 platelet-binding dodecapeptide on the D region becomes exposed, and fibrinogen fibers do not form...
March 2, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28258964/diagnosis-and-treatment-of-spontaneous-coronary-artery-pseudoaneurysm-rare-anomaly-with-potentially-significant-clinical-implications
#19
Subrata Kar, Richard R Webel
Spontaneous coronary artery pseudoaneurysm (PSA, false aneurysm) is an extremely rare occurrence with the precise incidence unknown. It is defined as an outwardly bulging monolayer or double layer within the coronary artery that lacks all 3 layers (intima, media, and adventitia) of the arterial wall. Coronary PSA commonly occurs from arterial dissection or perforation induced by catheter intervention, infection, pregnancy, or trauma. Traumatic dissection or perforation of the coronary artery after a percutaneous coronary intervention (PCI) remains the most common cause...
March 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28255102/randomized-angiographic-and-intravascular-ultrasound-comparison-of-dual-antiplatelet-therapy-vs-triple-antiplatelet-therapy-to-reduce-neointimal-tissue-proliferation-in-diabetic-patients
#20
Maria Fernanda Zuliani Mauro, J Armando Mangione, J Ribamar Costa, Ricardo Costa, Luiz Alberto Piva E Mattos, Rodolfo Staico, Fausto Feres, Dimytri Siqueira, Amanda Sousa, Alexandre Abizaid
BACKGROUND: Previous studies have suggested a benefit of cilostazol in addition to standard dual-antiplatelet therapy (DAPT), reducing in-stent late luminal loss and restenosis after percutaneous coronary intervention (PCI) with bare-metal and drug-eluting stent (DES) implantation. However, there is a paucity of intravascular ultrasound (IVUS) assessment of neointimal tissue hyperplasia (NIH) after triple-antiplatelet therapy (TAPT), especially in diabetic patients treated with DES. METHODS: This prospective, placebo-controlled trial was conducted in diabetic patients randomized (1:1) to receive either standard DAPT (aspirin and clopidogrel) vs TAPT with cilostazol for a minimum of 12 months after PCI with Endeavor zotarolimus-eluting stent (E-ZES)...
March 2017: Journal of Invasive Cardiology
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