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https://www.readbyqxmd.com/read/28799447/a-higher-volume-of-fibrotic-tissue-on-virtual-histology-prior-to-coronary-stent-implantation-predisposes-to-more-pronounced-neointima-proliferation
#1
Steven Haine, Kristien Wouters, Hielko Miljoen, Tom Vandendriessche, Marc Claeys, Johan Bosmans, Christiaan Vrints
BACKGROUND: Since neointima smooth muscle cells (SMC) mainly originate from the vessel wall, we investigated whether atherosclerotic plaque composition influences subsequent in-stent neointima proliferation and restenosis. METHODS: We performed intravascular ultrasound (IVUS) with virtual histology in 98 patients prior to elective bare-metal stent (BMS) implantation in de novo coronary artery lesions. Virtual histology variables pre-percutaneous coronary intervention (PCI) were related to in-stent neointima proliferation six months after implantation assessed as late luminal loss of 0...
August 11, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28798779/one-swallow-does-not-a-summer-make-but-many-swallows-do-accumulating-clinical-evidence-for-nearly-eliminated-peri-procedural-and-30-day-complications-with-mesh-covered-stents-transforms-the-carotid-revascularisation-field
#2
REVIEW
Piotr Musiałek, L Nelson Hopkins, Adnan H Siddiqui
Atherosclerotic carotid artery stenosis (CS) continues to be a common cause of acute ischaemic stroke. Optimised medical therapy (OMT), the first-line treatment modality in CS, may reduce or delay - but it does not abolish - CS-related strokes. As per current AHA/ASA and ESC/ESVS/ESO guidelines, carotid artery stenting (CAS) is a less-invasive alternative to carotid endarterectomy (CEA) for CS revascularisation in primary and secondary stroke prevention. Ten-year follow-up from the CREST trial in patients with symptomatic and asymptomatic CS confirmed equipoise of CAS and CEA in the primary endpoint...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28797408/in-vivo-calcium-detection-by-comparing-optical-coherence-tomography-intravascular-ultrasound-and-angiography
#3
Xiao Wang, Mitsuaki Matsumura, Gary S Mintz, Tetsumin Lee, Wenbin Zhang, Yang Cao, Akiko Fujino, Yongqing Lin, Eisuke Usui, Yoshihisa Kanaji, Tadashi Murai, Taishi Yonetsu, Tsunekazu Kakuta, Akiko Maehara
OBJECTIVES: The aim of this study was to evaluate optical coherence tomography (OCT) and intravascular ultrasound (IVUS) versus coronary angiography in the assessment of target lesion calcification and its effect on stent expansion. BACKGROUND: IVUS is more sensitive than angiography in the detection of coronary artery calcium, but the relationship among IVUS, OCT, and angiography has not been studied. METHODS: Overall, 440 lesions (440 patients with stable angina) underwent OCT- and IVUS-guided stent implantation...
August 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28794001/randomized-comparison-of-ridaforolimus-eluting-and-zotarolimus-eluting-coronary-stents-in-patients-with-coronary-artery-disease-primary-results-from-the-bionics-trial
#4
David E Kandzari, Pieter C Smits, Michael P Love, Ori Ben-Yehuda, Shmuel Banai, Simon D Robinson, Michael Jonas, Ran Kornowski, Rodrigo Bagur, Andres Iniguez, Haim D Danenberg, Robert L Feldman, Rajiv Jauhar, Harish Chandna, Manish A Parikh, Gidon Y Perlman, Mercedes Balcells, Peter M Markham, Melek Ozgu Ozan, Philippe Genereux, Elazer Edelman, Martin B Leon, Gregg W Stone
Background -The safety and efficacy of a novel cobalt alloy-based coronary stent with a durable elastomeric polymer eluting the antiproliferative agent ridaforolimus for treatment of patients with coronary artery disease is undetermined. Methods -A prospective, international 1:1 randomized trial was conducted to evaluate in a noninferiority design the relative safety and efficacy of ridaforolimus-eluting stents (RES) and slow-release zotarolimus-eluting stents (ZES) among 1,919 patients at 76 centers undergoing percutaneous coronary intervention...
August 9, 2017: Circulation
https://www.readbyqxmd.com/read/28781024/intraluminal-intensity-of-blood-speckle-on-intravascular-ultrasound-a-novel-predictor-of-periprocedural-myocardial-injury-after-coronary-stenting
#5
Yoshiyuki Okuya, Yuichi Saito, Hideki Kitahara, Takashi Nakayama, Yoshihide Fujimoto, Yoshio Kobayashi
The difference in the intraluminal intensity of blood speckle (IBS) on integrated backscatter-intravascular ultrasound (IB-IVUS) across a coronary artery stenosis (i.e., ΔIBS) has previously shown a negative correlation with fractional flow reserve, reflecting an impaired coronary blood flow. Periprocedural myocardial injury (PMI) after coronary stenting has also been associated with coronary circulatory dysfunction. The aim of this study was to investigate the relation between ΔIBS after coronary stenting and PMI...
July 14, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28778096/intravascular-ultrasound-guidance-in-drug-eluting-stents-implantation-a-meta-analysis-and-trial-sequential-analysis-of-randomized-controlled-trials
#6
Cheng Qian, Hong Feng, Jianlei Cao, Guangyu Zhang, Yanggan Wang
OBJECTIVE: Previous evidence suggested that intravascular ultrasound (IVUS) guidance could improve outcomes after drug-eluting stents (DES) placement, largely driven by data from observational studies. We, therefore, performed a meta-analysis and trial sequential analysis of randomized controlled trials to overcome this limitation. RESULTS: The retrieval process yielded 7 RCTs with 3,192 patients. Compared to the angiography guidance, IVUS-guided DES implantation was associated with a significant reduction in the major adverse cardiac events (MACE) (OR 0...
July 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28770625/clinical-implications-of-blood-material-interaction-and-drug-eluting-stent-polymers-in-review
#7
Hiroyoshi Mori, Anuj Gupta, Sho Torii, Emanuel Harari, Hiroyuki Jinnouchi, Renu Virmani, Aloke V Finn
Despite advances in drug-eluting stent (DES) technology, stent thrombosis (ST) remains the most feared complication with high morbidity and mortality. Area covered: Stent related factors certainly play a role in the pathophysiology of ST and more recent data suggest coating technologies have the potential to favorable modify this risk though blood material interactions. Of the polymer coatings used in DES, fluorinated polymers in particular have shown significant promise in modifying the risk of ST through their preferential interactions with albumin which is believed to prevent the adhesion and aggregation of platelets to the stent surface and thus minimize thrombus formation...
August 3, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28764604/optical-coherence-tomography-to-guide-percutaneous-treatment-of-coronary-bifurcation-disease
#8
Mathias Wolfrum, Giovanni Luigi De Maria, Adrian P Banning
Cardiovascular disease remains the most common cause of death worldwide. Enormous progress in the technology and applicability of percutaneous techniques to treat obstructive coronary heart disease has been made, and the number of percutaneous coronary interventions (PCI) is increasing. Coronary bifurcations are involved in a substantial number of PCIs and despite recent advances, bifurcation PCI remains a challenge in terms of immediate success and long-term outcome. Angiography has a limited capacity for showing important features of the 3 dimensional coronary vessel anatomy, position of stent struts and exact wire positions and is therefore suboptimal for guiding bifurcation PCI...
August 2, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28762005/a-web-based-searchable-system-to-confirm-magnetic-resonance-compatibility-of-implantable-medical-devices-in-japan-a-preliminary-study
#9
Yasuhiro Fujiwara, Hitoshi Fujioka, Tomoko Watanabe, Maiko Sekiguchi, Ryuji Murakami
Confirmation of the magnetic resonance (MR) compatibility of implanted medical devices (IMDs) is mandatory before conducting magnetic resonance imaging (MRI) examinations. In Japan, few such confirmation methods are in use, and they are time-consuming. This study aimed to develop a Web-based searchable MR safety information system to confirm IMD compatibility and to evaluate the usefulness of the system. First, MR safety information for intravascular stents and stent grafts sold in Japan was gathered by interviewing 20 manufacturers...
July 31, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28761388/coronary-stents-and-vascular-response-to-implantation-literature-review
#10
REVIEW
Marta Francesca Brancati, Francesco Burzotta, Carlo Trani, Ornella Leonzi, Claudio Cuccia, Filippo Crea
Drug-eluting stents (DESs) have minimized the limitations of bare-metal stents (BMSs) after percutaneous coronary interventions. Nevertheless, serious concerns remain about possible late complications of stenting, such as stent thrombosis (ST) and in-stent restenosis (ISR), although the introduction of second-generation DESs seems to have softened the phenomenon, compared to the first-generation ones. ST is a potentially catastrophic event, which has been markedly reduced by optimization of stent implantation, novel stent designs, and dual antiplatelet therapy...
2017: Pragmatic and Observational Research
https://www.readbyqxmd.com/read/28757519/protruding-in-stent-mass-after-bioresorbable-polymer-sirolimus-eluting-stent%C3%A3-ex-vivo-intravascular-imaging-and-histopathology
#11
Rika Kawakami, Takahiro Imanaka, Masaharu Ishihara, Takako Kihara, Kenichi Fujii, Seiichi Hirota, Hiroyuki Hao
No abstract text is available yet for this article.
July 29, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28756729/clinical-impact-of-intravascular-ultrasound-guidance-during-endovascular-treatment-of-subclavian-artery-disease
#12
Wen-Jung Chung, Yoshimitsu Soga, Yusuke Tomoi, Masahiko Fujihara, Shinya Okazaki, Yasutaka Yamauchi, Yoshiaki Shintani, Kenji Suzuki
PURPOSE: To evaluate the short- and long-term efficacy of intravascular ultrasound (IVUS) guidance during endovascular treatment (EVT) of subclavian artery disease. METHODS: The multicenter SCALLOP registry (SubClavian Artery disease treated with endovascuLar therapy; muLticenter retrOsPective registry) was interrogated to identify 542 patients who underwent successful EVT for SCAD between January 2003 and December 2012. Lesions were classified according to the use of IVUS guidance: 177 patients (mean age 68...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28734923/diagnostic-accuracy-of-coronary-ct-angiography-for%C3%A2-the-evaluation-of-bioresorbable-vascular-scaffolds
#13
Carlos Collet, Bernard Chevalier, Angel Cequier, Jean Fajadet, Marcello Dominici, Steffen Helqvist, A J Van Boven, Dariusz Dudek, Dougal McClean, Manuel Almeida, Jan J Piek, Erhan Tenekecioglu, Antonio Bartorelli, Stephan Windecker, Patrick W Serruys, Yoshinobu Onuma
OBJECTIVES: To assess the diagnostic accuracy of coronary computed tomography angiography (CTA) for bioresorbable vascular scaffold (BVS) evaluation. BACKGROUND: Coronary CTA has emerged as a noninvasive method to evaluate patients with suspected or established coronary artery disease. The diagnostic accuracy of coronary CTA to evaluate angiographic outcomes after BVS implantation has not been well established. METHODS: In the ABSORB II (A Bioresorbable Everolimus-Eluting Scaffold Versus a Metallic Everolimus-Eluting Stent II) study, patients were randomized either to receive treatment with the BVS or everolimus-eluting metallic stent...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28734913/uncovered-culprit-plaque-ruptures-in-patients-with-st-segment-elevation-myocardial-infarction-assessed-by-optical-coherence-tomography-and-intravascular-ultrasound-with-imap
#14
Mikkel Hougaard, Henrik Steen Hansen, Per Thayssen, Lisbeth Antonsen, Lisette Okkels Jensen
OBJECTIVES: This study assessed the incidence and course of healing of uncovered plaque ruptures (PR) following primary percutaneous coronary intervention. BACKGROUND: The infarct-related occlusion is frequently located at the lesion site with maximum thrombus burden, whereas the culprit PR may be situated more proximally or distally. METHODS: Uncovered PR in segments adjacent to the stent were identified by optical coherence tomography and intravascular ultrasound using iMap (Boston Scientific, Marlborough, Massachusetts) within 48 h and after 12 months...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28729378/very-early-great-saphenous-vein-graft-aneurysm-treated-by-percutaneous-coronary-intervention-under-chromaflo-imaging-guidance
#15
Tetsuo Yamaguchi, Takamichi Miyamoto, Kandoh Kawahatsu, Toshihiro Nozato
A 73-year-old man, who had undergone coronary artery bypass grafting (CABG) 10 days prior, presented with a great saphenous vein graft aneurysm (SVGA). CT revealed the increasing size of the aneurysm. Since the SVGA occurred immediately after CABG and there were no other complications, the aneurysm was treated percutaneously. While intravascular ultrasonography (IVUS) and optical coherence tomography failed to detect the entry point, an IVUS catheter with the addition of ChromaFlo imaging clearly revealed the entry point, size and length of the SVGA...
July 19, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28728480/safety-and-efficacy-of-stenting-nonthrombotic-iliac-vein-lesions-in-octogenarians-and-nonagenarians-in-an-office-setting
#16
Pavel Kibrik, Justin Eisenberg, Ahmad Alsheekh, Syed Ali Rizvi, Afsha Aurshina, Natalie Marks, Anil Hingorani, Enrico Ascher
Objectives Treatment options for venous insufficiency are rapidly evolving in the office setting and include venography, intravascular ultrasound, and venous stenting. Non-thrombotic iliac vein lesions assessment and treatment in an office setting is currently an area of interest. The purpose of this study is to demonstrate the safety and efficacy of evaluating non-thrombotic iliac vein lesion with this office-based procedure in octogenarians and nonagenarians. Methods From January 2012 through December 2013, 300 non-thrombotic iliac vein lesion limbs in 192 patients with venous insufficiency ≥80 years old were evaluated for non-thrombotic iliac vein lesion...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28724126/comparative-outcomes-after-percutaneous-coronary-intervention-among-black-and-white-patients-treated-at-us-veterans-affairs-hospitals
#17
Taisei Kobayashi, Thomas J Glorioso, Ehrin J Armstrong, Thomas M Maddox, Mary E Plomondon, Gary K Grunwald, Steven M Bradley, Thomas T Tsai, Stephen W Waldo, Sunil V Rao, Subhash Banerjee, Brahmajee K Nallamothu, Deepak L Bhatt, A Garvey Rene, Robert L Wilensky, Peter W Groeneveld, Jay Giri
Importance: Current comparative outcomes among black and white patients treated with percutaneous coronary intervention (PCI) in the Veterans Affairs (VA) health system are not known. Objective: To compare outcomes between black and white patients undergoing PCI in the VA health system. Design, Setting, and Participants: This study compared black and white patients who underwent PCI between October 1, 2007, and September 30, 2013, at 63 VA hospitals using data recorded in the VA Clinical Assessment, Reporting, and Tracking System for Cardiac Catheterization Laboratories (CART-CL) program...
July 19, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/28720725/optical-coherence-tomography-findings-in-patients-with-coronary-stent-thrombosis-a-report-of-the-prevention-of-late-stent-thrombosis-by-an-interdisciplinary-global-european-effort-prestige-consortium
#18
Tom Adriaenssens, Michael Joner, Thea Godschalk, Nikesh Malik, Fernando Alfonso, Erion Xhepa, Dries De Cock, Kenichi Komukai, Tomohisa Tada, Javier Cuesta, Vasile Sirbu, Laurent J Feldman, Franz-Josef Neumann, Alison H Goodall, Ton Heestermans, Ian Buysschaert, Ota Hlinomaz, Ann Belmans, Walter Desmet, Jurrien M Ten Berg, Anthony H Gershlick, Steffen Massberg, Adnan Kastrati, Giulio Guagliumi, Robert Byrne
Background -Stent thrombosis (ST) is a serious complication following coronary stenting. Intravascular optical coherence tomography (OCT) may provide insights into mechanistic processes leading to ST. We performed a prospective, multicenter study to evaluate OCT findings in patients with ST. Methods -Consecutive patients presenting with ST were prospectively enrolled in a registry using a centralized telephone registration system. After angiographic confirmation of ST, OCT imaging of the culprit vessel was performed with frequency domain OCT...
July 18, 2017: Circulation
https://www.readbyqxmd.com/read/28710605/current-clinical-applications-of-coronary-optical-coherence-tomography
#19
REVIEW
Teruyoshi Kume, Shiro Uemura
Optical coherence tomography (OCT) is an intra-coronary diagnostic technique that provides detailed imagings of blood vessels in the current cardiac catheterization laboratory. The higher resolution of OCT often provides superior delineation of each structure compared with intravascular ultrasound (IVUS), and it can reliably visualize the microstructure of normal and diseased arteries. The capabilities of OCT are well suited for the identification of calcified plaque and neointima formation after stent implantation...
July 14, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28689183/acute-thrombus-formation-on-phosphorilcholine-surface-modified-flow-diverters
#20
Miklos Marosfoi, Frederic Clarencon, Erin T Langan, Robert M King, Olivia W Brooks, Takamisu Tamura, John M Wainwright, Matthew J Gounis, Srinivasan Vedantham, Ajit S Puri
PURPOSE: Thromboembolic complications remain a limitation of flow diverting stents. We hypothesize that phosphorilcholine surface modified flow diverters (Pipeline Flex with Shield Technology, sPED) would have less acute thrombus formation on the device surface compared with the classic Pipeline Embolization device (cPED). METHODS: Elastase-induced aneurysms were created in 40 rabbits and randomly assigned to receive cPED or sPED devices with and without dual antiplatelet therapy (DAPT) (four groups, n=10/group)...
July 8, 2017: Journal of Neurointerventional Surgery
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