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Coronary Optical Coherence Tomography

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https://www.readbyqxmd.com/read/28423237/assessment-of-vascular-response-to-bioss-lim-c-%C3%A2-stents-vs-orsiro-%C3%A2-stents-in-the-porcine-coronary-artery-model
#1
Jacek Bil, Robert J Gil, Tomasz Pawlowski, Krzysztof P Milewski
AIMS: The optimal treatment strategy for coronary bifurcation lesions is still unknown. The aim of the study was to assess applicability of the new cobalt-chromium version of the sirolimus-eluting dedicated bifurcation BiOSS(®) LIM C stent in comparison with regular sirolimus-eluting Orsiro(®)  stent in a porcine coronary model. METHODS: A total of 13 BiOSS(®) LIM C stents and 6 Orsiro(®) stents were implanted in normal non-atherosclerotic porcine straight coronary arteries of six animals using 1...
April 19, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28421589/spontaneous-coronary-dissection-optical-coherence-tomography-insights-before-and-after-stenting
#2
Calin Homorodean, Mihail Spinu, Mihai Claudiu Ober, Maria Olinic, Dan Mircea Olinic
No abstract text is available yet for this article.
2017: Cardiology Journal
https://www.readbyqxmd.com/read/28420816/coronary-atherosclerotic-plaque-characteristics-and-cardiovascular-risk-factors%C3%A3-insights-from-an-optical-coherence-tomography-study
#3
Roberta De Rosa, Mariuca Vasa-Nicotera, David M Leistner, Sophia M Reis, Claudia E Thome, Jes-Niels Boeckel, Stephan Fichtlscherer, Andreas M Zeiher
BACKGROUND: The association between cardiovascular risk factors (CVRF) and the risk of coronary events is widely acknowledged. Whether individual risk factors may be associated with distinct plaque characteristics is currently unclear. We investigated the relationship between CVRF and coronary plaque burden and phenotype.Methods and Results:We assessed coronary atherosclerotic plaque characteristics by optical coherence tomography in 67 patients with stable coronary artery disease undergoing coronary angiography...
April 14, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28412257/complete-healing-of-spontaneous-coronary-artery-dissection-demonstrated-by-optical-coherence-tomography-in-a-young-postpartum-female-presenting-with-acute-coronary-syndrome
#4
Periklis Davlouros, Ioanna Xanthopoulou, Grigorios Tsigkas, Virginia Mplani, Stefanos Despotopoulos, George Hahalis
No abstract text is available yet for this article.
April 6, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28404965/impact-of-statins-therapy-on-morphological-changes-in-lipid-rich-plaques-stratified-by-10-year-framingham-risk-score-a-serial-optical-coherence-tomography-study
#5
Yinchun Zhu, Lin Lin, Chao Wang, Haibo Jia, Sining Hu, Lulu Li, Xiling Zhang, Gonghui Zheng, Yan Wang, Rong Sun, Abigail Afolabi, Irina Mustafina, Jingbo Hou, Shaosong Zhang, Bo Yu
The aim of the study was to investigate the impact of statins therapy on morphological changes of lipid-rich plaques by OCT (optical coherence tomography) in patients with known CHD (coronary heart disease), stratified by FRS. Ninety-seven lipid-rich plaques from sixty-nine patients who received statins therapy and underwent serial OCT images (baseline, 6-month and 12-month) were divided into 2 groups according to the FRS (framingham risk score): low risk group A (FRS<10%, N=35, n=45), moderate to high risk group B (FRS≥10%, N=34, n=52)...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28402989/serial-assessment-of-bioresorbable-polymer-sirolimus-eluting-stent-by-coronary-angioscopy-and-optical-coherence-tomography
#6
Shun Nakamura, Shigeki Kimura, Shun Nakagama, Yosuke Hayashi, Tasuku Yamamoto, Yuya Utsugi, Junichi Doi, Masafumi Mizusawa, Makoto Araki, Yuta Sudo, Keiichi Hishikari, Hiroyuki Hikita, Atsushi Takahashi, Mitsuaki Isobe
No abstract text is available yet for this article.
April 11, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28398579/optical-coherence-tomography-for-strategy-planning-and-staged-optimization-of-spontaneous-coronary-artery-dissection
#7
Enrico Fabris, Mark W Kennedy, Gianfranco Sinagra, Arnoud Van't Hof, Elvin Kedhi
No abstract text is available yet for this article.
April 6, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28369332/randomized-comparison-of-sirolimus-eluting-and-biolimus-eluting-bioresorbable-polymer-stents-the-sort-out-vii-optical-coherence-tomography-study
#8
Lene N Andreasen, Niels R Holm, Ida R Balleby, Lars R Krusell, Michael Maeng, Lars Jakobsen, Karsten T Veien, Knud N Hansen, Steen D Kristensen, Jakob Hjort, Anne Kaltoft, Jouke Dijkstra, Christian J Terkelsen, Jens F Lassen, Morten Madsen, Hans Erik Bøtker, Lisette O Jensen, Evald H Christiansen
Aims: To show non-inferiority of the 67- or 87 µm thick, sirolimus-eluting Orsiro drug eluting stent (DES) to the 122 µm thick, biolimus-eluting Nobori DES regarding size of vessel lumen outside the stent at 13-month follow-up. Methods and results: This study was a substudy to the SORT-OUT VII trial, a prospective, 1:1-randomized, comparison of the two stents in patients with stable coronary artery disease or acute coronary syndrome. Optical coherence tomography was acquired after percutaneous coronary intervention and at 13-month follow-up...
March 28, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28368850/not-all-that-blurs-is-clot-an-unusual-but-not-infrequent-cause-of-acute-coronary-syndrome
#9
Etelberto Hernández Hernández, Víctor Alfonso Jiménez Díaz, José Antonio Baz Alonso, Saleta Fernández Barbeira, Jorge Alberto Vitela Rodríguez, Jorge Andrade Pacheco, Alberto Ortiz Sáez, Guillermo Bastos Fernández, Antonio Alejandro De Miguel Castro, Andrés Iñiguez Romo
A 73-year-old man was admitted for non-ST segment elevation acute myocardial infarction. Coronary angiography suggested intrastent thrombosis as the etiology, but optical coherence tomography revealed a non-expanded stent, which was successfuly crushed and covered with a new stent.
April 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28365819/strut-protrusion-and-shape-impact-on-endothelial-shear-stress-insights-from-pre-clinical-study-comparing-mirage-and-absorb-bioresorbable-scaffolds
#10
Erhan Tenekecioglu, Yohei Sotomi, Ryo Torii, Christos Bourantas, Yosuke Miyazaki, Carlos Collet, Tom Crake, Solomon Su, Yoshinobu Onuma, Patrick W Serruys
Protrusion of scaffold struts is related with local coronary flow dynamics that can promote scaffold restenosis and thrombosis. That fact has prompted us to investigate in vivo the protrusion status of different types of scaffolds and their relationship with endothelial shear stress (ESS) distributions. Six Absorb everolimus-eluting Bioresorbable Vascular Scaffolds (Absorb, Abbott Vascular) and 11 Mirage sirolimus-eluting Bioresorbable Microfiber Scaffolds (Mirage, Manli Cardiology) were implanted in coronaries of eight mini pigs...
April 1, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28351604/stent-loss-during-chronic-total-occlusion-percutaneous-coronary-intervention-optical-coherence-tomography-guided-stent-crushing-and-trapping
#11
REVIEW
Luciano Candilio, Satoru Mitomo, Mauro Carlino, Antonio Colombo, Lorenzo Azzalini
Stent loss during percutaneous coronary intervention (PCI) is a rare event, which however has been associated with devastating consequences. Adequate management of this complication requires an exact understanding of the location of the lost stent and underlying mechanisms. Our case reports on a 55-year-old man who underwent PCI to a chronic total occlusion of the left anterior descending artery, complicated by stent loss. Successful management involved crushing and trapping of the stent behind a newly implanted stent...
March 20, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28347486/comparison-of-coronary-intimal-plaques-by-optical-coherence-tomography-in-arteries-with-versus-without-internal-running-vasa-vasorum
#12
Hideo Amano, Masayuki Koizumi, Ryo Okubo, Takayuki Yabe, Ippei Watanabe, Daiga Saito, Mikihito Toda, Takanori Ikeda
It has been reported that the internal running vasa vasorum (VV) was associated with plaque vulnerability, and microchannels in optical coherence tomography (OCT) are consistent pathologically with VV. We investigated plaque vulnerability and incidence of slow flow during percutaneous coronary intervention of the internal longitudinal running VV. Subjects were 71 lesions that underwent OCT before percutaneous coronary intervention. Internal running VV was defined as intraplaque neovessels running from the adventitia to plaque...
March 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28344187/iatrogenic-coronary-artery-dissection-induced-during-invasive-absolute-coronary-blood-flow-measurement-optical-coherence-tomography-findings
#13
Marcos Garcia-Guimaraes, Fernando Rivero, Javier Cuesta, Fernando Alfonso
No abstract text is available yet for this article.
March 28, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28342663/intramural-coronary-hematoma-a-complex-three-dimensional-entity-multimodality-assessment
#14
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/28330670/layered-fibrotic-plaques-are-the-predominant-component-in-cardiac-allograft-vasculopathy-systematic-findings-and-risk-stratification-by-oct
#15
Tor Skibsted Clemmensen, Niels Ramsing Holm, Hans Eiskjær, Brian Bridal Løgstrup, Evald Høj Christiansen, Jouke Dijkstra, Trine Ørhøj Barkholt, Christian Juhl Terkelsen, Michael Maeng, Steen Hvitfeldt Poulsen
OBJECTIVES: The aims of this study were to characterize cardiac allograft vasculopathy (CAV) phenotypes using optical coherence tomography (OCT) and to evaluate the prognostic significance of OCT-determined CAV severity. BACKGROUND: Intravascular OCT enables in vivo characterization of CAV microstructure after heart transplantation. METHODS: Sixty-two patients undergoing heart transplantation were enrolled at routine angiography from September 2013 through October 2015 and prospectively followed until censoring on May 27, 2016...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28330651/serial-assessment-of-tissue-precursors-and%C3%A2-progression-of-coronary-calcification-analyzed-by-fusion-of-ivus-and-oct-5-year-follow-up-of-scaffolded-and-nonscaffolded-arteries
#16
Yaping Zeng, Hiroki Tateishi, Rafael Cavalcante, Erhan Tenekecioglu, Pannipa Suwannasom, Yohei Sotomi, Carlos Collet, Shaoping Nie, Hans Jonker, Jouke Dijkstra, Maria D Radu, Lorenz Räber, Dougal R McClean, Robert-Jan van Geuns, Evald H Christiansen, Therese Fahrni, Jacques Koolen, Yoshinobu Onuma, Nico Bruining, Patrick W Serruys
OBJECTIVES: The aim of this study was to assess calcium growth with fused grayscale intravascular ultrasound (IVUS), IVUS-virtual histology, and optical coherence tomography (OCT) from baseline to 5-year follow-up in patients treated with bioresorbable vascular scaffolds. BACKGROUND: IVUS and OCT have individual strengths in assessing plaque composition and volume. Fusion of images obtained using these methods could potentially aid in coronary plaque assessment...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329036/predictive-value-of-plaque-morphology-assessed-by-frequency-domain-optical-coherence-tomography-for-impaired-microvascular-perfusion-after-elective-stent-implantation-the-intracoronary-electrocardiogram-study
#17
Hiroki Ikenaga, Satoshi Kurisu, Tsukasa Nakao, Shingo Kono, Yoji Sumimoto, Noriaki Watanabe, Takashi Shimonaga, Tadanao Higaki, Toshitaka Iwasaki, Naoya Mitsuba, Ken Ishibashi, Yoshihiro Dohi, Yukihiro Fukuda, Yasuki Kihara
Aims: This study was undertaken to assess the association between plaque features at culprit lesions assessed by frequency-domain optical coherence tomography (FD-OCT) and impaired microvascular perfusion estimated by intracoronary electrocardiogram (IcECG) after elective percutaneous coronary intervention (PCI). Furthermore, we investigated whether IcECG could predict future cardiac events. Methods and results: This study consisted of 84 patients who underwent both FD-OCT and IcECG during PCI...
March 7, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28318137/plaque-erosion-delays-vascular-healing-after-drug-eluting-stent-implantation-in-patients-with-acute-coronary-syndrome-an-in-vivo-optical-coherence-tomography-study
#18
COMPARATIVE STUDY
Sining Hu, Chao Wang, Chunyang Zhe, Yinchun Zhu, Taishi Yonetsu, Haibo Jia, Jingbo Hou, Shaosong Zhang, Ik-Kyung Jang, Bo Yu
OBJECTIVES: To compare vascular healing after drug-eluting stent (DES) implantation between plaque rupture (PR) and plaque erosion (PE). BACKGROUND: Vascular response after stent implantation in patients with PR has been extensively studied. Little is known about vascular healing after stent implantation in PE. METHODS: Sixty-five ACS patients who received optical coherence tomography (OCT) imaging of the culprit lesions both before and after stent implantation at baseline as well as at 6 months were included in this study...
March 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28317789/intravascular-ultrasound-and-optical-coherence-tomography-images-for-direct-right-coronary-artery-injury-after-tricuspid-valve-annuloplasty
#19
Junsuke Shibuya, Nobuaki Kobayashi, Noritake Hata, Shunsuke Uetake, Masahiro Fujii, Ryuzo Bessho, Wataru Shimizu
No abstract text is available yet for this article.
March 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28303685/impact-of-coronary-plaque-morphology-assessed-by-optical-coherence-tomography-on-cardiac-troponin-elevation-in-patients-with-non-st-segment-elevation-acute-coronary-syndrome
#20
Tetsumin Lee, Tadashi Murai, Mitsuaki Isobe, Tsunekazu Kakuta
OBJECTIVES: This study aimed to use optical coherence tomography (OCT) to study the relationship between plaque morphology prior to percutaneous coronary intervention (PCI) and post-PCI cardiac troponin (cTn) elevations in patients with non-ST-segment elevation acute coronary syndrome (NSTE-ACS). Furthermore, the relationship between these findings and the adverse cardiac events during follow-up was assessed. BACKGROUND: Association between post-PCI cTn elevations and OCT findings in NSTE-ACS patients is unclear...
March 17, 2017: Catheterization and Cardiovascular Interventions
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