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https://www.readbyqxmd.com/read/28101172/adenosine-triphosphate-stress-99m-tc-methoxyisobutylisonitrile-gated-myocardial-perfusion-imaging-efficacy-in-diagnosing-stent-restenosis-following-coronary-stent-implantation
#1
Pengfei Zhang, Song Chen, Yang Li, Qiuhong Du, Lijuan Wang, Yingxian Sun, Yaming Li
Coronary stent restenosis rate following implantation is considerably high. The adenosine stress gated myocardial perfusion imaging (G-MPI) method has been widely used in the diagnosis, risk stratification and prognosis evaluation of coronary heart disease; however, the high cost of adenosine limits its clinical application. The aim of the present study was to investigate the efficacy of adenosine triphosphate (ATP) stress (99m)Tc-methoxyisobutylisonitrile ((99m)Tc-MIBI) G-MPI for diagnosis in-stent restenosis following coronary stent implantation...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28093243/clinical-study-on-efficacy-of-allopurinol-in-patients-with-acute-coronary-syndrome-and-its-functional-mechanism
#2
Ying Huang, Chunya Zhang, Zhiqing Xu, Jinghua Shen, Xiaogang Zhang, Huanhua Du, Kanjian Zhang, Daifu Zhang
OBJECTIVE: To investigate the therapeutic effect of allopurinol treatment on acute coronary syndrome and to elucidate its possible mechanism. METHODS: Patients with acute coronary syndrome (n=100) were recruited as research subjects in our hospital. The patients were randomly divided into two groups (allopurinol group, n = 50) and control group, n= 50). These two groups were treated with conventional antiplatelet, anticoagulation and anti-ischemic therapy, while allopurinol was added to allopurinol group based on conventional treatment...
January 13, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28089777/bioresorbable-vascular-scaffold-to-treat-malignant-in-stent-restenosis-in-a-patient-with-nickel-allergy
#3
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/28057364/deferred-versus-conventional-stent-implantation-in-patients-with-acute-st-segment-elevation-myocardial-infarction-an-updated-meta-analysis-of-10-studies
#4
Joo Myung Lee, Tae-Min Rhee, Haseong Chang, Chul Ahn, Taek Kyu Park, Jeong Hoon Yang, Young Bin Song, Seung-Hyuk Choi, Hyeon-Cheol Gwon, Joo-Yong Hahn
BACKGROUND: We sought to evaluate safety and efficacy of the deferred stenting versus immediate stent implantation of infarct-related arteries in patients with acute ST-segment elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI). METHODS: A meta-analysis using random-effects models were conducted. The primary outcome, major adverse cardiac events (MACE), was a composite of all-cause mortality, myocardial infarction (MI), any unplanned target vessel revascularization (TVR), and hospitalization due to cardiac cause...
December 20, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28042404/in-hospital-and-one-year-clinical-outcome-of-percutaneous-coronary-intervention-in-a-tertiary-hospital-in-oman-oman-pci-registry
#5
Prashanth Panduranga, Majdah Al-Rashidi, Fatma Al-Hajri
OBJECTIVES: The aim of the study was to investigate the in-hospital and one-year clinical outcome of patients treated with percutaneous coronary intervention (PCI) in a tertiary hospital in Oman. METHODS: We conducted a retrospective, single-center, observational study looking at patients > 18 years old who underwent a PCI from 1 January to 31 December 2013. The primary end point was the occurrence of a major adverse cardiovascular event (MACE), defined as death, any myocardial infarction (MI), cerebrovascular accident (CVA), and target vessel revascularization (TVR) with either repeat PCI or coronary artery bypass surgery (CABG)...
January 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28041858/combining-clinical-and-angiographic-variables-for-estimating-risk-of-target-lesion-revascularization-after-drug-eluting-stent-placement
#6
Joshua M Stolker, David J Cohen, Kevin F Kennedy, Michael J Pencina, Suzanne V Arnold, Neal S Kleiman, John A Spertus
BACKGROUND: Drug-eluting stents (DES) reduce restenosis but require prolonged antiplatelet therapy, when compared with bare metal stents. Ideally, the patient should be involved in this risk:benefit assessment prior to selecting DES, to maximize the benefits and cost-effectiveness of care, and to improve medication adherence. However, accurate estimation of restenosis risk may require angiographic factors identified at cardiac catheterization. METHODS: In a large PCI registry, we used logistic regression to identify clinical and angiographic predictors of clinically-driven target lesion revascularization (TLR) over the first year after stent placement...
December 18, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28032527/bioreactivity-of-stent-material-activation-of-platelets-coagulation-leukocytes-and-endothelial-cell-dysfunction-in-vitro
#7
Veronique Ollivier, Caroline Roques, Nicolas Receveur, Matthias Gratz, Laurent Feldman, Didier Letourneur, Christian Gachet, Pierre H Mangin, Martine Jandrot-Perrus
Outcome of patients with coronary artery disease has been significantly improved by percutaneous coronary interventions with stent implantation. However, despite progress made on devices and antithrombotic treatments, stent thrombosis remains an important issue because of serious adverse consequences. Several mechanisms are assumed to favor stent thrombosis as platelet aggregation, fibrin formation, defective healing and local inflammation. The objective of this study was to evaluate in vitro the thrombogenicity, proinflammatory properties and healing capacities of cobalt-chromium (CoCr), an alloy commonly used for cardiovascular implants...
December 29, 2016: Platelets
https://www.readbyqxmd.com/read/28004124/attenuation-of-neointimal-formation-with-netrin-1-and-netrin-1-preconditioned-endothelial-progenitor-cells
#8
Norika Mengchia Liu, Kin Lung Siu, Ji Youn Youn, Hua Cai
: Restenosis after angioplasty is a serious clinical problem that can result in re-occlusion of the coronary artery. Although current drug-eluting stents have proved to be more effective in reducing restenosis, they have drawbacks of inhibiting reendothelialization to promote thrombosis. New treatment options are in urgent need. We have shown that netrin-1, an axon-guiding protein, promotes angiogenesis and cardioprotection via production of nitric oxide (NO). The present study examined whether and how netrin-1 attenuates neointimal formation in a femoral wire injury model...
December 21, 2016: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/27993758/first-in-man-6-month-results-of-qvanteq-surface-modified-coronary-stent-system-in-native-coronary-stenosis
#9
Pannipa Suwannasom, Yohei Sotomi, Roberto Corti, David J Kurz, Marco Roffi, Clemens von Birgelen, Stefano Buzzi, Arik Zucker, Jouke Dijkstra, Joanna J Wykrzykowska, Robbert J de Winter, Stephan Windecker, Yoshinobu Onuma, Patrick W Serruys, Joost Daemen, Lorenz Räber
AIMS: In pre-clinical studies, a bare metal cobalt-chromium stent with an active surface oxide layer modification (BMSmod) has shown to effectively inhibited neointimal hyperplasia. We sought to assess both clinical safety and feasibility of the BMSmod. METHODS AND RESULTS: In this prospective, nonrandomized, first-in-man multicenter study, a total of 31 patients with de novo coronary lesions, reference lumen diameters of 2.5 - 3.5 mm and lesion length ≤16 mm were enrolled...
December 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27993749/ultra-hydrophilic-stent-platforms-promote-early-vascular-healing-and-minimize-late-tissue-response-a-potential-alternative-to-second-generation-drug-eluting-stents
#10
Kumaran Kolandaivelu, Lynn Bailey, Stefano Buzzi, Arik Zucker, Vincent Milleret, Algirdas Ziogas, Martin Ehrbar, Ahmed A Khattab, James R Stanley, Gee K Wong, Brett Zani, Peter M Markham, Abraham R Tzafriri, Deepak L Bhatt, Elazer R Edelman
AIMS: Simple surface modifications can enhance coronary stent performance. Ultra-hydrophilic surface (UHS) treatment of contemporary bare metal stents (BMS) was assessed in vivo to verify whether they can provide long-term efficacy comparable to 2nd generation drug eluting stents (DES) while promoting healing comparably to BMS. METHODS AND RESULTS: UHS-treated BMS, untreated BMS and corresponding DES were tested for 3 commercial platforms. 30- and 90-day porcine coronary model were used to characterize late tissue response...
December 20, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27979031/clinical-value-of-post-percutaneous-coronary-intervention-fractional-flow-reserve-value-a-systematic-review-and-meta-analysis
#11
REVIEW
Goran Rimac, William F Fearon, Bernard De Bruyne, Fumiaki Ikeno, Hitoshi Matsuo, Zsolt Piroth, Olivier Costerousse, Olivier F Bertrand
BACKGROUND: Fractional flow reserve (FFR) prior to percutaneous coronary intervention (PCI) is useful to guide treatment. Whether post-PCI FFR assessment might have clinical impact is controversial. The aim of this study is to evaluate the range of post-PCI FFR values and analyze the relationship between post-PCI FFR and clinical outcomes. METHODS: We systematically searched the PubMed, EMBASE, and Cochrane Library databases with cross-referencing of articles reporting post-PCI FFR and correlating post-PCI FFR values and clinical outcomes...
January 2017: American Heart Journal
https://www.readbyqxmd.com/read/27976794/mother-and-child-catheter-facilitated-optical-coherence-tomography-a-novel-approach-to-improve-intracoronary-imaging
#12
Marcos Garcia-Guimaraes, Javier Cuesta, Fernando Rivero, Teresa Alvarado, Gonzalo Navarrete, Teresa Bastante, Amparo Benedicto, Fernando Alfonso
BACKGROUND: Our aim was to prospectively analyze the usefulness of mother-and-child catheter approach with the GuideLiner® (GL) catheter extension system to overcome some potential limitations associated with the use of optical coherence tomography (OCT). METHODS: We included consecutive patients referred to our institution for coronary angiogram in whom OCT image acquisition was obtained using GL. From February 2015 to May 2016, a total of 19 procedures (18 patients) were prospectively included...
2016: Cardiology Journal
https://www.readbyqxmd.com/read/27964934/double-barrel-coronary-artery-after-subintimal-stenting-for-chronic-total-occlusion
#13
Yusuke Watanabe, Yusuke Fujino, Hisaaki Ishiguro, Sunao Nakamura
A 70-year-old man with a medical history of hypertension, dyslipidemia, and diabetes was referred to our hospital for effort angina. Coronary angiography revealed chronic total occlusion (CTO) of the proximal right coronary artery (RCA) that had been collateralized by septal branches from the left anterior descending coronary artery, left circumflex coronary artery, and an antegrade bridge. Three everolimus-eluting stents (Xience-Alpine: 3.0 × 38 mm, 2.75 × 38 mm, and 2.5 × 38 mm; Abbott-Vascular Co...
October 30, 2016: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/27931592/the-rationale-for-performance-of-coronary%C3%A2-angiography-and-stenting-before-transcatheter-aortic-valve-replacement-from-the-interventional-section-leadership-council-of-the-american-college-of-cardiology
#14
REVIEW
Stephen Ramee, Saif Anwaruddin, Gautam Kumar, Robert N Piana, Vasilis Babaliaros, Tanveer Rab, Lloyd W Klein
Transcatheter aortic valve replacement (TAVR) is an effective, nonsurgical treatment option for patients with severe aortic stenosis. The optimal treatment strategy for treating concomitant coronary artery disease (CAD) has not been tested prospectively in a randomized clinical trial. Nevertheless, it is standard practice in the United States to perform coronary angiography and percutaneous coronary intervention for significant CAD at least 1 month before TAVR. All existing clinical trials were designed using this strategy...
December 12, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27923461/impact-of-patient-and-lesion-complexity-on-long-term-outcomes-following-coronary-revascularization-with-new-generation-drug-eluting-stents
#15
Konstantinos C Koskinas, Masanori Taniwaki, Fabio Rigamonti, Dik Heg, Marco Roffi, David Tüller, Olivier Muller, Andre Vuillomenet, Stephane Cook, Daniel Weilenmann, Christopher Kaiser, Peiman Jamshidi, Peter Jüni, Stephan Windecker, Thomas Pilgrim
Long-term clinical outcomes of new-generation drug-eluting stents in complex anatomic and clinical settings are not well defined. This study assessed the impact of patient and lesion complexity on 2-year outcomes after coronary revascularization with ultrathin strut biodegradable-polymer (BP) sirolimus-eluting stents (SES) versus durable-polymer (DP) everolimus-eluting stents (EES). In a prespecified analysis of the BIOSCIENCE randomized trial (NCT01443104), complex patients (911 of 2,119; 43%) were defined by the presence of acute ST-elevation myocardial infarction (MI); left ventricular ejection fraction ≤30%; renal dysfunction; insulin-treated diabetes; treatment of ostial lesion, bypass graft, unprotected left main lesion; or 3-vessel intervention...
November 16, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27914491/impact-of-lesion-characteristics-on-the-prediction-of-optimal-poststent-fractional-flow-reserve
#16
Hirohiko Ando, Hiroaki Takashima, Akihiro Suzuki, Shinichiro Sakurai, Soichiro Kumagai, Akiyoshi Kurita, Katsuhisa Waseda, Tetsuya Amano
BACKGROUND: Poststent fractional flow reserve (FFR) is a useful indicator of optimal percutaneous coronary intervention, and higher poststent FFR is associated with favorable long-term clinical outcome. However, little is known about the factors influencing poststent FFR. The purpose of this study was to determine the impact of lesion characteristics on poststent FFR. METHODS: For patients who had scheduled stent implantation for stable angina, FFR measurements at maximum hyperemia were performed before and after coronary stent implantation...
December 2016: American Heart Journal
https://www.readbyqxmd.com/read/27888672/incidence-of-coronary-intervention-in-cardiac-arrest-survivors-with-non-shockable-initial-rhythms-and-no-evidence-of-st-elevation-mi-stemi
#17
Matthew Wilson, Anne V Grossestreuer, David F Gaieski, Benjamin S Abella, William Frohna, Munish Goyal
OBJECTIVE: With the demonstrated benefit of an early-invasive strategy for STEMI and VF/VT arrest patients, there is interest in assessing the potential benefit of early angiography for non-shockable (PEA/Asystole) arrest patients. We hypothesized that in cardiac arrest patients who obtain return of spontaneous circulation (ROSC) after a non-shockable initial rhythm and do not have STEMI the incidence of coronary intervention would be clinically insignificant (<5%). METHODS: Retrospective multicenter US clinical registry study of post-cardiac arrest patients at 18 hospitals between 1/00 and 5/14...
November 23, 2016: Resuscitation
https://www.readbyqxmd.com/read/27886821/cangrelor-pharmacology-clinical-data-and-role-in-percutaneous-coronary-intervention
#18
REVIEW
Matthew J Price
In clinical trials that assessed the safety and efficacy of cangrelor during percutaneous coronary intervention (PCI), cangrelor was administered as a 30-μg/kg bolus followed by a 4-μg/kg/min infusion for at least 2 hours or the duration of the PCI, whichever was longer. Cangrelor is currently indicated as an adjunct to PCI to reduce the risk of myocardial infarction, repeat coronary revascularization, and stent thrombosis in patients who have not been treated with a P2Y12 platelet inhibitor and are not being given a glycoprotein IIb/IIIa inhibitor...
January 2017: Interventional cardiology clinics
https://www.readbyqxmd.com/read/27876181/analysis-of-suboptimal-stent-deployment-using-intravascular-ultrasound-and-coronary-pressure-pullback-measurement
#19
Nobuhiro Tanaka, Nico H J Pijls, Jun Yamashita, Yo Kimura, Masashi Ogawa, Naotaka Murata, Kunihiro Sakoda, Kou Hoshino, Youhei Hokama, Akira Yamashina
BACKGROUND: There are some cases in whom a sufficient improvement in fractional flow reserve (FFR) could not be achieved even if anatomical results indicated satisfactory stent deployment. We investigated the relation of abnormal findings between intravascular ultrasound (IVUS) and coronary pressure pullback measurement (CP-PB). METHODS: IVUS and CP-PB were investigated after stent deployment in 60 vessels in 53 patients. CP-PB criterion for adequate stent deployment was defined as a ratio of coronary pressure at the stent distal edge to the proximal edge (Psd/Psp) that is greater than 0...
November 18, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27867143/survival-after-percutaneous-coronary-intervention-for-chronic-total-occlusion-in-elderly-patients
#20
Aurel Toma, Catherine Gebhard, Michael Gick, Ademaj Fadil, Barbara E Stähli, Kambis Mashayekhi, Miroslaw Ferenc, Franz-Josef Neumann, Heinz Joachim Buettner
AIMS: Few data are available on outcomes of percutaneous coronary intervention (PCI) for coronary chronic total occlusions (CTO) in very elderly patients in the drug-eluting stent (DES) era. We investigated long-term survival in a single-center cohort of elderly patients following CTO PCI using DES. METHODS AND RESULTS: Consecutive 2002 patients who underwent PCI of a CTO at our center between 01/2005 and 12/2013 were followed for a median of 2.6 years (interquartile range 1...
November 22, 2016: EuroIntervention
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