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Coronary Optical Coherence Tomography

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https://www.readbyqxmd.com/read/28724126/comparative-outcomes-after-percutaneous-coronary-intervention-among-black-and-white-patients-treated-at-us-veterans-affairs-hospitals
#1
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/28722253/late-lumen-enlargement-induced-by-drug-coated-balloon-in-the-patient-with-ptfe-covered-stent-restenosis
#2
Takayuki Warisawa, Toru Naganuma, Sunao Nakamura
We report a case of percutaneous coronary intervention with drug coated balloon (DCB) for the in-stent restenosis of polytetrafluoroethylene-covered stent. One year follow-up angiography was excellent and in-stent lumen enlargement compared with the postprocedure and 6-months follow-up was demonstrated by optical coherent tomography. This case suggested the utility of DCB as a therapeutic option for covered-stent restenosis.
July 19, 2017: Catheterization and Cardiovascular Interventions
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
#3
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/28717068/first-in-man-trial-of-sio2-inert-coated-bare-metal-stent-system-in-native-coronary-stenosis%C3%A3-the-axetis-fim-trial
#4
Taku Asano, Pannipa Suwannasom, Yuki Katagiri, Yosuke Miyazaki, Yohei Sotomi, Robin P Kraak, Joanna Wykrzykowska, Benno J Rensing, Jan J Piek, Mariann Gyöngyösi, Patrick W Serruys, Yoshinobu Onuma
BACKGROUND: A novel bare metal stent with an SiO2coating was developed to prevent excessive neointimal hyperplasia by inertization of the metallic stent surface. The efficacy of the device was demonstrated in a preclinical model. The aim of this first-in-man trial was to assess the safety and feasibility of the new device.Methods and Results:This prospective non-randomized single-arm trial was designed to enroll 35 patients with a de novo coronary lesion. Quantitative coronary angiography and optical coherence tomography (OCT) were performed at the baseline procedure and at the 6-month follow-up...
July 14, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28711588/a-framework-for-computational-fluid-dynamic-analyses-of-patient-specific-stented-coronary-arteries-from-optical-coherence-tomography-images
#5
Susanna Migliori, Claudio Chiastra, Marco Bologna, Eros Montin, Gabriele Dubini, Cristina Aurigemma, Roberto Fedele, Francesco Burzotta, Luca Mainardi, Francesco Migliavacca
The clinical challenge of percutaneous coronary interventions (PCI) is highly dependent on the recognition of the coronary anatomy of each individual. The classic imaging modality used for PCI is angiography, but advanced imaging techniques that are routinely performed during PCI, like optical coherence tomography (OCT), may provide detailed knowledge of the pre-intervention vessel anatomy as well as the post-procedural assessment of the specific stent-to-vessel interactions. Computational fluid dynamics (CFD) is an emerging investigational tool in the setting of optimization of PCI results...
July 12, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28710605/current-clinical-applications-of-coronary-optical-coherence-tomography
#6
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/28709701/optical-coherence-tomography-guidance-for-the-management-of-angiographically-intermediate-left-main-bifurcation-lesions-early-clinical-experience
#7
Ilaria Dato, Francesco Burzotta, Carlo Trani, Andrea Romano, Lazzaro Paraggio, Cristina Aurigemma, Italo Porto, Antonio Maria Leone, Giampaolo Niccoli, Filippo Crea
BACKGROUND: Left main (LM) atherosclerotic lesions affect clinical outcomes. Frequency domain-optical coherence tomography (FD-OCT) allows detailed characterization of non-ostial coronary atherosclerotic lesions. The clinical impact of FD-OCT assessment of LM bifurcation disease on the revascularization decision is unknown. METHODS: Patients who underwent FD-OCT assessment to guide management of angiographically intermediate distal LM stenosis were retrospectively selected...
July 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28707349/assessment-of-bioresorbable-scaffold-with-a-novel-high-definition-60%C3%A2-mhz-ivus-imaging-system-comparison-with-40-mhz-ivus-referenced-to-optical-coherence-tomography
#8
Kozo Okada, Hideki Kitahara, Yoshiaki Mitsutake, Shigemitsu Tanaka, Takumi Kimura, Paul G Yock, Peter J Fitzgerald, Fumiaki Ikeno, Yasuhiro Honda
BACKGROUND: In vivo assessment of bioresorbable scaffold (BRS) is of growing clinical interest. The novel 60MHz high-definition intravascular ultrasound (HD-IVUS) has been developed to overcome the limitations of conventional 40 MHz IVUS. This study aimed to evaluate the performance and limitations of 60 MHz HD-IVUS compared with 40 MHz IVUS with respect to polymeric-strut visualization, quantitative and qualitative analysis, and feasibility of high-speed pullback in the assessment of BRS...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28707316/ticagrelor-and-absorb-bioresorbable-vascular-scaffold-implantation-for-recovery-of-vascular-function-after-successful-chronic-total-occlusion-recanalization-tiger-bvs-trial-rationale-and-study-design
#9
Salvatore Brugaletta, Josep Gomez-Lara, Juan Caballero, Luis Ortega-Paz, Luis Teruel, Miriam Jimenez Fernandez, Rafael Romaguera, Vicente Alcalde Martinez, Marcos Ñato, Eduardo Molina Navarro, Joan-Antoni Gomez-Hospital, Concepcion Correa Vilches, Maria Joyera, Angel Cequier, Manel Sabate
OBJECTIVES: To explore the role of ticagrelor versus clopidogrel in coronary blood flow normalization immediately after chronic coronary total occlusion (CTO) recanalization. BACKGROUND: Coronary vascular function of a CTO immediately after recanalization is demonstrated to be poor. METHODS: The TIGER BVS is a prospective, double-randomized, open-label, two parallel-group controlled clinical trial to evaluate efficacy of ticagrelor versus clopidogrel in improving vascular function of coronary segment distal to CTO immediately after CTO recanalization...
July 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28706598/a-fractional-flow-reserve-guidewire-causing-longitudinal-stent-compression-and-successful-recovery
#10
Metzdorf Pierre-Adrien, Maigrat Charles-Henri, Popovic Batric, Camenzind Edoardo
Longitudinal stent deformation (LSD) is a rare complication but can occur during coronary intervention. We report a case with LSD of the distal edge, documented by an optical coherence tomography investigation and successfully recovered.
April 2017: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/28701488/comparative-biomechanical-behavior-and-healing-profile-of-a-novel-thinned-wall-ultrahigh-molecular-weight-amorphous-poly-l-lactic-acid-sirolimus-eluting-bioresorbable-coronary-scaffold
#11
Yanping Cheng, Pawel Gasior, Jing-Gang Xia, Kamal Ramzipoor, Chang Lee, Edward A Estrada, Daniell Dokko, Jenn C McGregor, Gerard B Conditt, Thomas McAndrew, Greg L Kaluza, Juan F Granada
BACKGROUND: Mechanical strength of bioresorbable scaffolds (BRS) is highly dependent on strut dimensions and polymer features. To date, the successful development of thin-walled BRS has been challenging. We compared the biomechanical behavior and vascular healing profile of a novel thin-walled (115 µm) sirolimus-eluting ultrahigh molecular weight amorphous poly-l-lactic acid-based BRS (APTITUDE, Amaranth Medical [AMA]) to Absorb (bioresorbable vascular scaffold [BVS]) using different experimental models...
July 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28699188/culprit-plaque-characteristics-in-younger-versus-older-patients-with-acute-coronary-syndromes-an-optical-coherence-tomography-study-from-the-formidable-registry
#12
Umberto Barbero, Paolo Scacciatella, Mario Iannaccone, Fabrizio D'Ascenzo, Giampaolo Niccoli, Francesco Colombo, Fabrizio Ugo, Salvatore Colangelo, Massimo Mancone, Calcagno Simone, Gennaro Sardella, Nicolas Amabile, Pascal Motreff, Konstantinos Toutouzas, Roberto Garbo, Corrado Tamburino, Antonio Montefusco, Pierluigi Omedè, Claudio Moretti, Maurizio D'amico, Geraud Souteyrand, Fiorenzo Gaita, Christian Templin
OBJECTIVES: Culprit plaque characteristics in young patients who experience an Acute Coronary Syndrome (ACS) evaluated by OCT (Optical Coherence Tomography) have to be defined. The OCT-FORMIDABLE is a multicentre retrospective registry enrolling consecutive patients with ACS who performed OCT in 9 European centres. METHODS: Patients were divided in two groups according to age at presentation: juvenile-ACS (age ≤ 50 years) and not juvenile-ACS (age > 50 years)...
July 12, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28698292/optical-coherence-tomography-findings-in-patients-with-recanalized-coronary-thrombi-treated-with-bioresorbable-vascular-scaffolds
#13
Javier Cuesta, Marcos García-Guimaraes, Teresa Bastante, Fernando Rivero, Teresa Alvarado, Fernando Alfonso
No abstract text is available yet for this article.
July 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28697899/hiv-and-coronary-disease-when-secondary-prevention-is-insufficient
#14
Ana Sofia Carvalho, Rui Osório Valente, Luís Almeida Morais, Pedro Modas Daniel, Ramiro Sá Carvalho, Lurdes Ferreira, Rui Cruz Ferreira
Highly active antiretroviral therapy (HAART) has created a new paradigm for human immunodeficiency virus (HIV)-infected patients, but their increased risk for coronary disease is well documented. We present the case of a 57-year-old man, co-infected with HIV-2 and hepatitis B virus, adequately controlled and with insulin-treated type 2 diabetes and dyslipidemia, who was admitted with non-ST elevation acute myocardial infarction. Coronary angiography performed on day four of hospital stay documented two-vessel disease (mid segment of the right coronary artery [RCA, 90% stenosis] and the first marginal)...
July 8, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28697847/the-impact-of-serum-trans-fatty-acids-concentration-on-plaque-vulnerability-in-patients-with-coronary-artery-disease-assessment-via-optical-coherence-tomography
#15
Yoshinori Nagasawa, Toshiro Shinke, Ryuji Toh, Tatsuro Ishida, Hiromasa Otake, Tomofumi Takaya, Daisuke Sugiyama, Takayosi Toba, Masaru Kuroda, Hachidai Takahashi, Daisuke Terashita, Natsuko Tahara, Yuto Shinkura, Kenzo Uzu, Daiji Kashiwagi, Koji Kuroda, Yuichiro Nagano, Hiroyuki Yamamoto, Kenichi Yanaka, Yoshiro Tsukiyama, Ken-Ichi Hirata
BACKGROUND AND AIMS: Recent epidemiological studies have showed that excessive intake of trans fatty acids (TFA) can be a residual risk for the development of coronary artery disease (CAD) even under medical management, including statins. This study aimed at investigating the association between lipid profile, including serum TFA concentration, and plaque vulnerability using optical coherence tomography (OCT). METHODS: The level of serum elaidic acid, a major TFA component, was measured using gas chromatography in 161 consecutively enrolled patients with CAD under guideline-directed risk factor management...
June 28, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28692481/differences-in-coronary-plaque-characteristics-between-patients-with-and-those-without-peripheral-arterial-disease
#16
Krzysztof L Bryniarski, Erika Yamamoto, Higuma Takumi, Lei Xing, Thomas Zanchin, Tomoyo Sugiyama, Hang Lee, Ik-Kyung Jang
INTRODUCTION: Cardiovascular mortality of patients with combined peripheral arterial disease (PAD) and coronary artery disease (CAD) is twice as high as that in those with either disease alone. It is known that patients with PAD undergoing percutaneous coronary intervention have a higher incidence of adverse cardiac events such as myocardial infarction or target vessel revascularization. OBJECTIVE: In this study, we compared the detailed characteristics of culprit and nonculprit plaques between patients with and those without PAD using optical coherence tomography...
July 7, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28691192/bilirubin-coating-attenuates-the-inflammatory-response-to-everolimus-coated-stents
#17
In-Ho Bae, Dae Sung Park, So-Youn Lee, Eun-Jae Jang, Jae-Won Shim, Kyung-Seob Lim, Jun-Kyu Park, Ju Han Kim, Doo Sun Sim, Myung Ho Jeong
The aim of this study was to evaluate the effects of bilirubin- and/or everolimus (EVL)-coated stents to prevent arterial neointimal hyperplasia and inflammation in vitro and in vivo. The stents were prepared by spray coating bare metal stents (BMS) with bilirubin and/or EVL. Study groups were divided into (1) BMS, (2) bilirubin-coated stents (BES), (3) commercialized stents (Synergy™; EES), and (4) bilirubin/EVL-coated stents (B-EES). The coating thickness and drug release rates were comparable to previous reports (i...
July 10, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28690299/optical-coherence-tomography-assessment-of-glucose-fluctuation-impact-on-the-neointimal-proliferation-after-stent-implantation-in-a-diabetic-hypercholesterolemic-swine-model
#18
Jinggang Xia, Yang Qu, Chunlin Yin, Dong Xu
The aim of the present study was to investigate the effects of glucose fluctuation on neointimal proliferation after stent implantation by optical coherence tomography (OCT) in a diabetic/hypercholesterolemic (DM/HC) swine model.A total of 24 everolimus-eluting stents (EES) were implanted in the right coronary artery (RCA) of the animals using a 20% overstretch ratio. The 24 swines were divided into a DM-high glucose fluctuation (HGF) group (n = 8), DMlow glucose fluctuation (LGF) group (n = 8), and a control group (n = 8)...
July 10, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28685252/imaging-the-event-prone-coronary-artery-plaque
#19
Andreas A Giannopoulos, Dominik C Benz, Christoph Gräni, Ronny R Buechel
Acute coronary events, the dreaded manifestation of coronary atherosclerosis, remain one of the main contributors to mortality and disability in the developed world. The majority of those events are associated with atherosclerotic plaques-related thrombus formation following an acute disruption, that being rupture or erosion, of an event-prone lesion. These historically termed vulnerable plaques have been the target of numerous benchtop and clinical research endeavors, yet to date without solid results that would allow for early identification and potential treatment...
July 6, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28674616/biological-effect-of-microengineered-grooved-stents-on-strut-healing-a-randomised-oct-based-comparative-study-in-humans
#20
Boris Vesga, Hector Hernandez, Sergio Higuera, Pawel Gasior, Dario Echeveri, Juan A Delgado, Antonio Dager, Camilo Arana, Charles Simonton, Akiko Maehara, Julio Palmaz, Juan F Granada
OBJECTIVE: To evaluate the biological effect of microengineered stent grooves (MSG) on early strut healing in humans by performing optical coherence tomography (OCT) analysis 3 weeks following the implantation. BACKGROUND: In the experimental setting, MSG accelerate endothelial cell migration and reduce neointimal proliferation compared with bare metal stent (BMS). METHODS: A total of 37 patients undergoing percutaneous coronary intervention with de novo coronary lesions were randomly assigned to either MSG (n=19) or an identical BMS controls (n=18)...
2017: Open Heart
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