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https://www.readbyqxmd.com/read/28092507/real-time-intravascular-ultrasound-and-photoacoustic-imaging
#1
Donald VanderLaan, Andrei B Karpiouk, Doug Yeager, Stanislav Emelianov
Combined intravascular ultrasound and intravascular photoacoustic (IVUS/IVPA) imaging is an emerging hybrid modality being explored as a means of improving the characterization of atherosclerotic plaque anatomical and compositional features. While initial demonstrations of the technique have been encouraging, they have been limited by catheter rotation and data acquisition, displaying, and processing rates on the order of several seconds per frame as well as the use of off-line image processing. Herein, we present a complete IVUS/IVPA imaging system and method capable of real-time IVUS/IVPA imaging, with online data acquisition, image processing, and display of both IVUS and IVPA images...
January 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28090817/coronary-or-ventricular-rupture-after-blunt-chest-trauma-a-clinical-dilemma
#2
Anton Sabashnikov, Guido Michels, Javid Fatullayev, Kaveh Eghbalzadeh, Mohamed Zeriouh, Stephan Baldus, Jens Wippermann, Thorsten Wahlers, Navid Madershahian
Cardiac rupture (CR) is one of the most serious and life-threatening complications of blunt chest trauma (BCT) usually associated with high mortality. Moreover, its diagnosis and treatment strategies may be extremely challenging for clinicians due to various anatomical localisations of the tear. Whereas most injuries fall under the category of right atrial ruptures, left ventricular lesions represent a rare type of this injury, with greater mortality, particularly in cases of multi-chamber injuries. However, not only cardiac chamber or great vessel ruptures may occur as a result of BCT; a growing number of reports also describe BCT-induced isolated coronary artery injuries, including ruptures...
January 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28089999/impact-of-impaired-renal-function-in-patients-with-severely-calcified-coronary-lesions-treated-with-orbital-atherectomy
#3
Michael S Lee, Evan Shlofmitz, Gentian Lluri, Richard A Shlofmitz
OBJECTIVES: We evaluated the clinical outcomes of patients with chronic kidney disease (CKD) who underwent orbital atherectomy for severe coronary artery calcification (CAC) prior to stent implantation. BACKGROUND: Percutaneous coronary intervention (PCI) of lesions with severe CAC is associated with increased rates of adverse clinical events. Patients with CKD are at increased risk for atherosclerotic cardiovascular disease, including vascular calcification, and have worse outcomes after PCI...
January 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28089779/percutaneous-coronary-intervention-of-chronically-occluded-saphenous-vein-grafts-using-excimer-laser-atherectomy-as-an-adjuvant-therapy
#4
Mohsen Mohandes, Sergio Rojas, Mauricio Torres, Cristina Moreno, Francisco Fernández, Jordi Guarinos, Alfredo Bardají
We present two cases with chronic total occlusion of the saphenous vein graft in two patients with a history of previous bypass surgery with unfavorable anatomic features for recanalization of the native coronary artery. In the first case, two dedicated attempts for recanalization of chronic total occlusion of the native artery failed and in the second case there was not an adequate visualization of the native vessel beyond the occlusion point, not even by contralateral injection. Excimer laser atherectomy was used in both cases as an adjuvant therapy during recanalization of the saphenous vein graft in combination with a distal protection device in order to reduce distal embolization...
December 27, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28089778/image-noise-reduction-technology-reduces-radiation-in-a-radial-first-cardiac-catheterization-laboratory
#5
Ateka Gunja, Yagya Pandey, Hui Xie, Beata M Wolska, Adhir R Shroff, Amer K Ardati, Mladen I Vidovich
BACKGROUND: Transradial coronary angiography (TRA) has been associated with increased radiation doses. We hypothesized that contemporary image noise reduction technology would reduce radiation doses in the cardiac catheterization laboratory in a typical clinical setting. METHODS AND RESULTS: We performed a single-center, retrospective analysis of 400 consecutive patients who underwent diagnostic and interventional cardiac catheterizations in a predominantly TRA laboratory with traditional fluoroscopy (N=200) and a new image noise reduction fluoroscopy system (N=200)...
December 27, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28089777/bioresorbable-vascular-scaffold-to-treat-malignant-in-stent-restenosis-in-a-patient-with-nickel-allergy
#6
Alfonso Jurado-Román, María T López-Lluva, Ignacio Sánchez-Pérez, Jesús Piqueras-Flores, Ramón Maseda, Fernando Lozano-Ruíz-Poveda
Nickel is the most frequent allergen in patients with allergic contact dermatitis and nickel allergy has been associated with recurrent in-stent restenosis. However, it is often misdiagnosed because of a low suspicion threshold. It should be discarded in patients with recurrent in-stent restenosis, especially if their medical history reveals prior contact dermatitis. It is also noteworthy and rarely specified that even newer generation stents that use novel metal alloys also contain low amounts of nickel. To avoid the implantation of new stents containing this metal, when percutaneous coronary intervention is indicated, drug eluting balloons or bioresorbable vascular scaffolds associated with small doses of steroids could provide good alternatives of treatment...
January 2, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28089147/sequent-please-vs-pantera-lux-drug-coated-balloon-angioplasty-in-real-life-results-from-the-d%C3%A3-sseldorf-dcb-registry
#7
Athena Assadi-Schmidt, Annemarie Mohring, Eva Liebsch, Lisa Dannenberg, Alina Achilles, Martin Pöhl, Shazia Afzal, Verena Veulemans, Patrick Horn, Roberto Sansone, Florian Bönner, Bodo Levkau, Malte Kelm, Tobias Zeus, Amin Polzin
BACKGROUND: In-stent restenosis (ISR) is still a major concern in interventional cardiology. Drug coated balloon (DCB) angioplasty has been shown to be a promising option in treatment of ISR. However heterogeneity of different DCBs in suppression of neointimal growth has been described in a porcine model of coronary ISR. Therefore, in this registry analysis, we compared two frequently used paclitaxel eluting DCBs, the SeQuent Please and the Pantera Lux DCB. METHODS: 571 patients were treated with DCB angioplasty at the Heinrich-Heine University Düsseldorf between 2009 and 2012...
December 13, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28089137/a-comparison-of-cangrelor-prasugrel-ticagrelor-and-clopidogrel-in-patients-undergoing-percutaneous-coronary-intervention-a-network-meta-analysis
#8
Peter C Westman, Michael J Lipinski, Rebecca Torguson, Ron Waksman
BACKGROUND: Newer P2Y12 inhibitors have more rapid onset of platelet inhibition compared with clopidogrel, especially the intravenous P2Y12 inhibitor cangrelor. Direct comparisons between cangrelor and oral P2Y12 inhibitors ticagrelor and prasugrel do not exist. Thus, we performed a network meta-analysis to directly and indirectly compare different P2Y12 inhibitors in patients undergoing percutaneous coronary intervention (PCI). METHODS: MEDLINE/PubMed and ClinicalTrials...
October 21, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28081585/drug-eluting-stent-placement-versus-coronary-artery-bypass-surgery-for-unprotected-left-main-coronary-artery-disease-a-meta-analysis-of-randomized-controlled-trials
#9
Sunil Upadhaya, Ramkaji Baniya, Seetharamprasad Madala, Suresh Kumar Subedi, Jahangir Khan, Ravi Kanth Velagapudi, Ghassan Bachuwa
BACKGROUND: Coronary artery bypass grafting (CABG) is the standard of care for treating left main coronary lesions. However, recently published randomized controlled trials (RCT) have shown conflicting results. We sought to compare clinical outcomes of percutaneous coronary intervention (PCI) with drug-eluting stent placement to CABG using a meta-analysis of randomized controlled trials. METHODS: A systemic search of Pubmed, Scopus, Cochrane library, and Clinicaltrials...
January 12, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28081310/a-simple-risk-score-in-acute-st-elevation-myocardial-infarction-modified-acef-age-creatinine-and-ejection-fraction-score
#10
Arzu Kalaycı, Vecih Oduncu, Çetin Geçmen, Selim Topcu, Can Yücel Karabay, İbrahim Akın İzgi, Cevat Kırma
BACKGROUND/AIM: The aim of this study was to evaluate if the modified ACEF (age, creatinine, and ejection fraction) score is a predictor of major adverse cardiac and cerebrovascular events during 1 year of follow-up in patients with ST-segment elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (PCI). MATERIALS AND METHODS: We retrospectively enrolled 1632 consecutive patients who were admitted to our emergency department diagnosed with STEMI within 12 h of chest pain and treated with primary PCI...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28079127/functional-nanoarchitectures-for-enhanced-drug-eluting-stents
#11
Yomna E Saleh, Mohamed A Gepreel, Nageh K Allam
Different strategies have been investigated to allow for optimum duration and conditions for endothelium healing through the enhancement of coronary stents. In this study, a nanoarchitectured system is proposed as a surface modification for drug eluting stents. Highly oriented nanotubes were vertically grown on the surface of a new Ni-free biocompatible Ti-based alloy, as a potential material for self-expandable stents. The fabricated nanotubes were self-grown from the potential stent substrate, which are also proposed to enhance endothelial proliferation while acting as drug reservoir to hinder Vascular Smooth Muscle Cells (VSMC) proliferation...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078448/synergic-impact-of-oral-anticoagulation-control-and-renal-function-in-determining-major-adverse-events-in-atrial-fibrillation-patients-undergoing-percutaneous-coronary-intervention-insights-from-the-afcas-registry
#12
Marco Proietti, K E Juhani Airaksinen, Andrea Rubboli, Axel Schlitt, Tuomas Kiviniemi, Pasi P Karjalainen, Gregory Y H Lip
BACKGROUND: In patients with atrial fibrillation (AF), quality of oral anticoagulation control as well as impaired renal function are associated with adverse outcomes. Our objective was to analyze if there was a synergistic impact of these factors in determining adverse outcomes in AF patients undergoing percutaneous coronary intervention and stent (PCI-S). METHODS: Post-hoc analysis from the Atrial Fibrillation Undergoing Coronary Artery Stenting (AFCAS) registry...
January 11, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28075499/long-term-outcome-following-remote-ischemic-postconditioning-during-percutaneous-coronary-interventions-the-rip-pci-trial-long-term-follow-up
#13
Shahar Lavi, Nour Abu-Romeh, Sabrina Wall, Mistre Alemayehu, Ronit Lavi
The clinical value of ischemic conditioning during percutaneous coronary intervention (PCI) and mode of administration is controversial. Our aim was to assess the long-term effect of remote ischemic postconditioning among patients undergoing PCI. We randomized 360 patients undergoing PCI who presented with a negative troponin T at baseline into 3 groups: 2 groups received remote ischemic postconditioning (with ischemia applied to the arm in 1 group and to the thigh in the other group), and the third group acted as a control group...
January 11, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28073430/outcomes-of-first-versus-second-generation-drug-eluting-stent-implanted-for-right-coronary-artery-ostial%C3%A2-narrowing
#14
Ryuta Sugihara, Yasunori Ueda, Yuji Nishimoto, Kuniaki Takahashi, Ayaka Murakami, Keisuke Ueno, Yasuharu Takeda, Akio Hirata, Kazunori Kashiwase, Yoshiharu Higuchi, Yoshio Yasumura
Clinical outcome is generally poor when stents are implanted at right coronary artery ostial lesion (RCAos). We compared the clinical outcome between the first-generation drug-eluting stent (first DES) and second-generation drug-eluting stent (second DES) used for RCAos. Consecutive 88 patients who underwent percutaneous coronary interventions of de novo RCAos using the first DES (33 patients) or second DES (55 patients) were analyzed. The incidence of major adverse cardiac events (MACE) defined as the composite of cardiac death, myocardial infarction attributed to right coronary artery, and target lesion revascularization within 2...
December 18, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/28072714/optical-coherence-tomography-assessment-of-a-complex-bifurcation-lesion-treated-with-double-kissing-crush-technique-a-case-report
#15
Jin-Zan Cai, Yao-Jun Zhang, Tian Xu, Yong-Xiang Zhu, Chen-Yu Mao, Christos V Bourantas, Tom Crake, Shao-Liang Chen
The DEFINITION (Impact of the complexity of bifurcation lesions treated with drug-eluting stents) study has provided a novel classification to evaluate the complexity of coronary bifurcation lesion according to coronary angiography, but angiographic imaging due to its low resolution and inherited limitation may result in an inaccurate adjudication.We used optical coherence tomography (OCT) to further evaluate the coronary characteristics in a patient with "simple" bifurcation lesion which was classified by the DEFINITION criteria...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28069015/impact-of-smoking-on-health-related-quality-of-life-after-percutaneous-coronary-intervention-treated-with-drug-eluting-stents-a-longitudinal-observational-study
#16
Chao Xue, Lin Bian, Yu Shui Xie, Zhao Fang Yin, Zuo Jun Xu, Qi Zhi Chen, Hui Li Zhang, Chang Qian Wang
BACKGROUND: Smoking has been shown to reduce health-related quality of life (HRQOL) in patients with coronary artery disease (CAD) undergoing percutanous coronary intervention (PCI) either by means of balloon angioplasty or with the use of bare-metal stents (BMS). Drug-eluting stents (DES) have now been widely used and are related to substantial reduction of restenosis and significantly improved HRQOL compared with BMS. This study aimed to evaluate the effects of smoking on HRQOL in patients after PCI in DES era...
January 3, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28068799/is-in-stent-restenosis-after-a-successful-coronary-stent-implantation-due-to-stable-angina-associated-with-tg-hdl-c-ratio
#17
Harun Kundi, Ahmet Korkmaz, Ahmet Balun, Hulya Cicekcioglu, Emrullah Kiziltunc, Koray Gursel, Mustafa Cetin, Ender Ornek, Mehmet Ileri
We examined the impact of the preprocedural triglyceride (TG)/high-density lipoprotein cholesterol (HDL-C) ratio on risk of in-stent restenosis (ISR). Patients with typical anginal symptoms and/or positive treadmill or myocardial perfusion scintigraphy test results who underwent successful coronary stent implantation due to stable angina were examined; 1341 patients were enrolled. The hospital files of the patients were used to gather data. Cox regression analysis showed that the TG/HDL-C ratio was independently associated with the presence of ISR ( P < ...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28067198/outcomes-of-patients-treated-with-durable-polymer-platinum-chromium-everolimus-eluting-stents-a-meta-analysis-of-randomized-trials
#18
Salvatore Cassese, Gjin Ndrepepa, Robert A Byrne, Sebastian Kufner, Erion Xhepa, Antoinette de Waha, Tobias Rheude, Roisin Colleran, Daniele Giacoppo, Yukinori Harada, Karl-Ludwig Laugwitz, Heribert Schunkert, Massimiliano Fusaro, Adnan Kastrati
AIMS: The durable-polymer platinum-chromium everolimus-eluting stent (PtCr-EES) is a new- generation drug-eluting stent (DES) with a platinum-enriched metallic platform developed to improve the percutaneous treatment of patients with coronary artery disease. We sought to investigate the performance of durable-polymer PtCr-EES versus other new-generation DES. METHODS AND RESULTS: We undertook a meta-analysis of trials, in which patients receiving percutaneous coronary intervention (PCI) were randomly assigned to durable-polymer PtCr-EES versus other new-generation DES (other DES)...
January 10, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28067196/management-of-st-elevation-myocardial-infarction-in-young-patients-by-limiting-implantation-of-durable-intracoronary-devices-and-guided-by-optical-frequency-domain-imaging-proof-of-concept-study
#19
Nicolas Combaret, Géraud Souteyrand, Nicolas Barber-Chamoux, Guilhem Malcles, Aimé Amonchot, Bruno Pereira, Louis Le Bivic, Romain Eschalier, Romain Trésorier, Pascal Motreff
AIMS: To demonstrate the feasibility and safety of ST-elevation myocardial infarction (STEMI) management in young patients by limiting implantation of durable intracoronary devices (using bioresorbable stent or medical treatment alone). METHODS AND RESULTS: Patients <50 years admitted for STEMI with single vessel disease received a two-stage management strategy. During a second coronary angiography performed between day 2 and day 7, optical frequency domain imaging (OFDI) enabled to guide therapeutic management: i) in the case of a stenosis greater that 70% or plaque prolapse, implantation of a BVS; ii) in the other cases, continuation of medical management alone without stenting...
January 10, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28066799/the-study-protocol-for-a-non-randomized-controlled-clinical-trial-using-a-genotype-guided-strategy-in-a-dataset-of-patients-who-undergone-percutaneous-coronary-intervention-with-stent
#20
Cristina Lucía Dávila-Fajardo, Jesús Sánchez-Ramos, Xando Diaz- Villamarín, Luis Javier Martínez-González, Pablo Toledo Frías, Susana Martínez Huertas, Francisco Burillo Gómez, Juan Caballero Borrego, Alicia Bautista Pavés, Mª Carmen Marín Guzmán, José Antonio Ramirez Hernández, Concepción Correa Vilches, Jose Cabeza Barrera
This article contains data related to the research article entitled "Results of genotype-guided antiplatelet therapy in patients undergone percutaneous coronary intervention with stent" (J. Sánchez-Ramos, C.L. Dávila-Fajardo, P. Toledo Frías, X. Díaz Villamarín, L.J. Martínez-González, S. Martínez Huertas, F. Burillo Gómez, J. Caballero Borrego, A. Bautista Pavés, M.C. Marín Guzmán, J.A. Ramirez Hernández, C. Correa Vilches, J. Cabeza Barrera, 2016) (1). This data article reports, for the first time, about the non-randomized clinical trial protocol that check if CYP2C19/ABCB1 genotype-guided strategy in which the choice of antiplatelet therapy is based on the genetic test, reduces the rates of cardiovascular events and bleeding compared to a non-tailored strategy in patients undergone percutaneous coronary intervention (PCI) with stent...
February 2017: Data in Brief
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