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https://www.readbyqxmd.com/read/28741575/the-drug-eluting-absorbable-magnesium-vascular-scaffold-in-complex-coronary-bifurcations-insights-from-an-in-vivo-multimodality-imaging-study
#1
Johan Bennett, Maarten Vanhaverbeke, Nina Vanden Driessche, Nick Hiltrop, Tom Adriaenssens, Walter Desmet, Peter Sinnaeve, Christophe Dubois
AIMS: This acute in-vivo study sought to provide insights regarding the feasibility of performing complex bifurcation stenting with Magmaris magnesium-alloy bioresorbable scaffolds (Biotronik,Bulach, Switzerland). METHODS AND RESULTS: Twenty-five New-Zealand-White rabbits underwent stenting of non-diseased aorto-iliac bifurcations with Magmaris using provisional (PS,n=5), culotte (n=6), modified-T (n=6), or T-and-protrusion (TAP,n=8) stenting techniques. Angiography, optical coherence tomography and micro-computed tomography were performed...
July 25, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28714525/dedicated-bifurcation-stents-or-regular-drug-eluting-stents-in-distal-left-main-stenosis-a-retrospective-study
#2
Adam Kern, Robert J Gil, Krystian Bojko, Bartłomiej Rzeszowski, Krzysztof Bednarski, Jerzy Górny, Jacek Bil
BACKGROUND: Mainly atherosclerosis develops in distal left main (LM) within bifurcation or trifurcation. The aim of this study was to analyze the strategy of distal LM stenosis treatment and associated clinical outcomes in a large hospital in Northern Poland. METHODS: The study population consisted of consecutive patients with stable coronary artery disease or acute coronary syndrome (ACS) and distal LM stenosis who were hospitalized between June 2012 and June 2013...
July 17, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28709701/optical-coherence-tomography-guidance-for-the-management-of-angiographically-intermediate-left-main-bifurcation-lesions-early-clinical-experience
#3
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/28707445/angiographic-and-clinical-outcome-after-crush-of-everolimus-eluting-stent-for-distal-unprotected-left-main-disease
#4
Angela Migliorini, Renato Valenti, Ruben Vergara, Maria Grazia De Gregorio, Eleonora Gabrielli, Elena De Vito, Maria Raffaella Aicale, Nazario Carrabba, David Antoniucci
Obiectives: Angiographic and clinical outcomes after crushing of everolimus-eluting stent (EES) for distal unprotected left main disease (ULMD). BACKGROUND: Few data exist about crushing of EES for distal ULMD. METHODS: From the Florence ULMD Percutaneous Coronary Interevention Registry consecutive patients with distal ULMD treated with EES were included in the analysis. Patients treated with provisional stenting were compared with patients treated with crush stenting...
July 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28705057/applicability-and-procedural-success-rate-of-bioresorbable-vascular-scaffolds-for-percutaneous-coronary-intervention-in-an-all-comer-cohort-of-383-consecutive-patients
#5
Christian Schlundt, Stephan Achenbach, Fabiola Felten, Jens Roether, Mohamed Marwan, Holger Nef, Josef Ludwig, Monique Tröbs
Objectives The purpose of this study was to determine applicability and procedural success of bioresorbable vascular scaffolds (BVS) for percutaneous coronary intervention (PCI) in an all-comer cohort. Background BVS use in bifurcations and severely calcified lesions is not recommended, and a relatively large crossing profile may cause limitations. It is has never been studied how widely BVS can be applied in all-comer cohorts. Methods In 383 consecutive patients (acute coronary syndrome: 124, stable coronary disease 259), a BVS (Absorb) was used as first-line device unless any of the following contraindications were present: bifurcation with side branch >2...
July 14, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28683937/demonstration-of-the-safety-and-feasibility-of-robotically-assisted-percutaneous-coronary-intervention-in%C3%A2-complex-coronary-lesions-results-of-the-cora-pci-study-complex-robotically-assisted%C3%A2-percutaneous-coronary-intervention
#6
Ehtisham Mahmud, Jesse Naghi, Lawrence Ang, Jonathan Harrison, Omid Behnamfar, Ali Pourdjabbar, Ryan Reeves, Mitul Patel
OBJECTIVES: The aims of this study were to evaluate the feasibility and technical success of robotically assisted percutaneous coronary intervention (R-PCI) for the treatment of coronary artery disease (CAD) in clinical practice, especially in complex lesions, and to determine the safety and clinical success of R-PCI compared with manual percutaneous coronary intervention (M-PCI). BACKGROUND: R-PCI is safe and feasible for simple coronary lesions. The utility of R-PCI for complex coronary lesions is unknown...
July 10, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28667810/coronary-artery-aneurysm-after-mini-crush-drug-eluting-stent-technique-in-a-chronic-total-occlusion
#7
Alfonso Jurado-Román, María T López-Lluva, Ignacio Sánchez-Pérez, Fernando Lozano Ruíz-Poveda
A 53-year-old man underwent percutaneous coronary intervention of a chronic total occlusion of the circumflex artery. A mini-crush stent technique with two drug-eluting stents was performed. To the best of our knowledge, this is the first case of coronary artery aneurysm affecting a bifurcated chronic total occlusion treated with a two-stent technique.
July 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28649954/in-vitro-validation-of-coronary-ct-angiography-for-the-evaluation-of-complex-lesions
#8
Carlos Collet, Yoshinobu Onuma, Maik J Grundeken, Yosuke Miyazaki, Marcio Bittercourt, Pieter Kitslaar, Sadako Motoyama, Yukio Ozaki, Taku Asano, Jolanda J Wentzel, Geert J Streekstra, Patrick W Serruys, Robbert J de Winter, Nihls Planken
AIMS: To assess in vitro the diagnostic accuracy of computed tomography angiography (CTA) for the evaluation of complex coronary lesions. METHODS AND RESULTS: Five Plexiglas phantoms with three bifurcations lesions each were designed to mimic the anatomic variations and fractal phenomenon of the coronary tree. In addition, luminal stenosis were scaled up with increases of 10%. A third generation dual-source computed tomography was used. Automated quantitative CTA analysis was performed...
June 27, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28641842/long-term-clinical-outcomes-of-patients%C3%A2-treated-with-everolimus-eluting-bioresorbable-stents-in-routine-practice-2-year-results-of-the-isar-absorb-registry
#9
Jens Wiebe, Petra Hoppmann, Roisin Colleran, Sebastian Kufner, Michael Valeskini, Salvatore Cassese, Simon Schneider, Michael Joner, Heribert Schunkert, Karl-Ludwig Laugwitz, Adnan Kastrati, Robert A Byrne
OBJECTIVES: The aim of this study was to report clinical outcomes in patients treated in routine practice 2 years after everolimus-eluting bioresorbable stent (BRS) implantation. BACKGROUND: Long-term results in patients undergoing BRS implantation in routine clinical practice are sparse, and existing evidence from randomized trials considers mostly selected patients. METHODS: The ISAR-ABSORB registry enrolled consecutive patients undergoing BRS implantation in routine clinical practice at 2 high-volume centers in Germany...
June 26, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28624754/automatic-segmentation-of-the-lumen-region-in-intravascular-images-of-the-coronary-artery
#10
Danilo Samuel Jodas, Aledir Silveira Pereira, João Manuel R S Tavares
Image assessment of the arterial system plays an important role in the diagnosis of cardiovascular diseases. The segmentation of the lumen and media-adventitia in intravascular (IVUS) images of the coronary artery is the first step towards the evaluation of the morphology of the vessel under analysis and the identification of possible atherosclerotic lesions. In this study, a fully automatic method for the segmentation of the lumen in IVUS images of the coronary artery is presented. The proposed method relies on the K-means algorithm and the mean roundness to identify the region corresponding to the potential lumen...
June 10, 2017: Medical Image Analysis
https://www.readbyqxmd.com/read/28606906/a-randomised-comparison-of-conventional-versus-intentional-strategy-in-patients-with-high-risk-prediction-of-side-branch-occlusion-in-coronary-bifurcation-intervention-rationale-and-design-of-the-cit-resolve-trial
#11
Dong Zhang, Dong Yin, Chenxi Song, Chengang Zhu, Ajay J Kirtane, Bo Xu, Kefei Dou
INTRODUCTION: The intentional strategy (aggressive side branch (SB) protection strategy: elective two-stent strategy or jailed balloon technique) is thought to be associated with lower SB occlusion rate than conventional strategy (provisional two-stent strategy or jailed wire technique). However, most previous studies showed comparable outcomes between the two strategies, probably due to no risk classification of SB occlusion when enrolling patients. There is still no randomised trial compared the intentional and conventional strategy when treating bifurcation lesions with high risk of SB occlusion...
June 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28606882/the-effect-of-coronary-bifurcation-and-blood-flow-modelling-in-prediction-of-atherosclerotic-plaque-development-a-serial-computed-tomographic-coronary-angiographic-study
#12
Antonis Sakellarios, Christos V Bourantas, Stella-Lida Papadopoulou, Pieter H Kitslaar, Chrysafios Girasis, Gregg W Stone, Johan H C Reiber, Lampros K Michalis, Patrick W Serruys, Pim J de Feyter, Hector M Garcia-Garcia, Dimitrios I Fotiadis
AIMS: Examine the effect of the daughter branches to the haemodynamics and the potential prediction of atherosclerotic plaque development as well as the best flow division model for accurate blood flow modelling. METHODS AND RESULTS: In this study, we analysed computed tomographic coronary angiography retrospective data portraying 17 coronary artery bifurcations in 15 patients recruited in the PROSPECT MSCT study. The baseline and three year follow-up imaging data were used to reconstruct coronary artery anatomy and in the baseline models blood flow simulations was performed using three flow division approaches: stress-free, Murray's law and Doriot's law...
June 13, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28606788/coronary-bifurcation-model-created-using-a-novel-directional-heat-injury-catheter
#13
Kenji Nakatsuma, Shin Watanabe, Akihiro Tokushige, Erika Yamamoto, Bingyuan Bao, Hiroki Watanabe, Takeshi Kimura, Naritatsu Saito
OBJECTIVES: The present study aimed to develop a swine coronary bifurcation model. BACKGROUND: In human coronary bifurcation lesion, atherosclerotic plaques are usually observed in the lateral wall, whereas the flow divider regions are spared. There is currently no suitable coronary bifurcation animal model, on which a new stent can be tested. METHODS: We developed a novel directional heat injury catheter, which comprised of a non-compliant balloon catheter (diameter: 3...
June 7, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28605936/vascular-disease-and-kidney-stones-abdominal-aortic-calcifications-are-associated-with-low-urine-ph-and-hypocitraturia
#14
Nishant D Patel, Ryan D Ward, Juan Calle, Erick M Remer, Manoj Monga
OBJECTIVE: Vascular calcifications are associated with nephrolithiasis. Although studies have demonstrated correlations with vascular disease and calcium stones in kidney stone formers (KSF), an etiologic link has remained elusive. As a noncontrast CT (NCCT) scan is typically part of a stone evaluation, our objective was to evaluate the association of NCCT-based assessment of abdominal aortic calcifications (AACs) with 24-hour urine parameters and stone composition. MATERIALS AND METHODS: Ninety-seven KSF were included with CT imaging and 24-hour urine studies...
July 7, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28603592/jailing-polymer-jacketed-guide-wires-during-bifurcation-coronary-interventions-is-associated-with-procedural-myocardial-infarction
#15
Arka Chatterjee, Jeremy S White, Taimoor Hashim, Massoud A Leesar
AIM: To study the relationship of jailed polymer jacketed guide wires (PGW) with procedural myocardial infarction (PMI) after bifurcation coronary interventions. METHODS: Consecutive bifurcation interventions performed from January 2010 to October 2014 were included in the study. Chart review was performed to obtain demographic, clinical and procedural data. PMI was defined as Creatine Kinase MB > 3 × upper reference limit of normal. Multivariate logistic regression was used to ascertain relationship of PGW use with PMI...
May 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28588834/successful-bailout-stenting-strategy-against-lethal-coronary-dissection-involving-left-main-bifurcation
#16
Hiroshi Kubota, Tetsuya Nomura, Yusuke Hori, Kenichi Yoshioka, Daisuke Miyawaki, Ryota Urata, Takeshi Sugimoto, Masakazu Kikai, Natsuya Keira, Tetsuya Tatsumi
Catheter-induced coronary dissection involving left main bifurcation is a rare complication during cardiac catheterization but can become lethal unless it is treated appropriately. Interventional cardiologists always have to pay attention to the risk of complications related to cardiac catheterization and prepare for determining the best bailout strategy for the situation.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28582283/reservoir-pressure-analysis-of-aortic-blood-pressure-an-in-vivo-study-at-five-locations-in-humans
#17
Om Narayan, Kim H Parker, Justin E Davies, Alun D Hughes, Ian T Meredith, James D Cameron
INTRODUCTION: The development and propagation of the aortic blood pressure wave remains poorly understood, despite its clear relevance to major organ blood flow and potential association with cardiovascular outcomes. The reservoir pressure model provides a unified description of the dual conduit and reservoir functions of the aorta. Reservoir waveform analysis resolves the aortic pressure waveform into an excess (wave related) and reservoir (compliance related) pressure. The applicability of this model to the pressure waveform as it propagates along the aorta has not been investigated in humans...
June 2, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28581348/safety-and-efficacy-of-the-tryton-side-branch-stent%C3%A2-for-the-treatment-of-coronary-bifurcation-lesions-an-update
#18
Maik J Grundeken, Robbert J de Winter, Joanna J Wykrzykowska
Percutaneous coronary interventions (PCIs) involving coronary bifurcation lesions are associated with adverse outcomes compared with non-bifurcation lesions. The Tryton Side Branch Stent has been developed to improve clinical outcomes after bifurcation PCI. Areas covered: We will discuss observational data (clinical registries and intravascular imaging studies) and randomized data from the TRYTON trial (comparing Tryton [used in combination with a main branch drug-eluting stent (DES)] with side branch balloon angioplasty [in combination with a main branch DES; also referred to the provisional strategy])...
June 13, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28574987/reconstruction-of-stented-coronary-arteries-from-optical-coherence-tomography-images-feasibility-validation-and-repeatability-of-a-segmentation-method
#19
Claudio Chiastra, Eros Montin, Marco Bologna, Susanna Migliori, Cristina Aurigemma, Francesco Burzotta, Simona Celi, Gabriele Dubini, Francesco Migliavacca, Luca Mainardi
Optical coherence tomography (OCT) is an established catheter-based imaging modality for the assessment of coronary artery disease and the guidance of stent placement during percutaneous coronary intervention. Manual analysis of large OCT datasets for vessel contours or stent struts detection is time-consuming and unsuitable for real-time applications. In this study, a fully automatic method was developed for detection of both vessel contours and stent struts. The method was applied to in vitro OCT scans of eight stented silicone bifurcation phantoms for validation purposes...
2017: PloS One
https://www.readbyqxmd.com/read/28562382/impact-of-mean-platelet-aggregation-degree-on-long-term-clinical-outcomes-among-patients-undergoing-a-complex-percutaneous-coronary-intervention
#20
Quan Li, Mengmeng Li, Xianpeng Yu, Jiqiang He, Yuechun Gao, Xiaoling Zhang, Changyan Wu, Yawei Luo, Yuchen Zhang, Xuejun Ren
OBJECTIVE: The aim of this study was to evaluate the association between the mean platelet aggregation degree and long-term clinical outcomes in patients receiving a complex percutaneous coronary intervention (CPCI). PATIENTS AND METHODS: We screened 2141 patients after a percutaneous coronary intervention (PCI) treated with aspirin and clopidogrel. CPCI was defined as a procedure targeted to at least one of the following: left main disease, bifurcation lesion, ostial lesion, chronic total occlusion, and small-vessel stenting...
May 30, 2017: Coronary Artery Disease
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