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https://www.readbyqxmd.com/read/28107496/studies-on-new-activities-of-enantiomers-of-2-2-hydroxypropanamido-benzoic-acid-antiplatelet-aggregation-and-antithrombosis
#1
Qili Zhang, Danlin Wang, Meiyan Zhang, Yunli Zhao, Zhiguo Yu
R-/S-2-(2-Hydroxypropanamido) benzoic acid (R-/S-HPABA), a marine-derived anti-inflammatory drug, however, the antiplatelet and antithrombotic effects have not been investigated. In this paper, the in vitro antiplatelet activities and in vivo antithrombotic effects of R-/S-HPABA were investigated, for the first time. The effects of R-/S-HPABA on platelet aggregation induced by adenosine diphosphate (ADP), collagen (COLL) and arachidonic acid (AA) were evaluated. In addition, the in vivo bleeding time, clotting time, collagen-epinephrine induced pulmonary thrombosis and common carotid artery thrombosis were also investigated in rats...
2017: PloS One
https://www.readbyqxmd.com/read/28107211/type-2-myocardial-infarction-incidence-presentation-treatment-and-outcome-in-routine-clinical-practice
#2
Dragana Radovanovic, Thomas Pilgrim, Burkhardt Seifert, Philip Urban, Giovanni Pedrazzini, Paul Erne
AIMS: The clinical definition and optimal treatment for myocardial infarction (MI) type 2 (T2MI) are not well established. We assessed differences in presentation, treatment and outcomes of patients with MI type 1 (T1MI) and T2MI. METHODS: The data of MI patients enrolled in the AMIS Plus cohort with T2MI were compared with T1MI using propensity score matching. RESULTS: A total of 13 829 patients had T1MI and 1091 (7.3%) T2MI. Patients with T2MI were older, often female, with more risk factors and comorbidities, and less ST segment elevation...
January 19, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28105561/the-rise-and-fall-of-anticoagulation-with-bivalirudin-during-percutaneous-coronary-interventions-a-review-article
#3
REVIEW
Constantinos Andreou, Christos Maniotis, Michael Koutouzis
Bivalirudin is a direct thrombin inhibitor used during percutaneous coronary intervention (PCI). Treatment with bivalirudin compared to heparin plus glycoprotein IIb/IIIa inhibitors (GPI) reduced bleeding complications, but resulted in higher rates of ischemic events, including acute stent thrombosis in ST segment elevation myocardial infarction (STEMI) patients. Thus, it may be considered a reasonable alternative antithrombotic agent in patients at high risk of bleeding undergoing PCI. However its superiority over heparin alone is questioned particularly in the era of novel antiplatelet agents and transradial PCI...
January 19, 2017: Cardiology and Therapy
https://www.readbyqxmd.com/read/28105358/primary-autoimmune-myelofibrosis-with-severe-thrombocytopenia-mimicking-immune-thrombocytopenia-a-case-report
#4
Jian Hua, Shu Matayoshi, Tomoyuki Uchida, Morihiro Inoue, Masao Hagihara
Patients presenting with bone marrow fibrosis not accompanied by well-established autoimmune diseases, such as systemic lupus erythematosus, or malignant diseases, are considered to have primary autoimmune myelofibrosis (AIMF). Primary AIMF has been reported to follow a benign course and responds well to treatment with immunosuppressive agents. Immune thrombocytopenia (ITP) is also an autoimmune disorder characterized by antiplatelet-antibody-mediated thrombocytopenia in the absence of other causes of thrombocytopenia...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28104306/midterm-and-one-year-outcome-of-amphilimus-polymer-free-drug-eluting-stent-in-patients-needing-short-dual-antiplatelet-therapy-insight-from-the-astute-registry-amphilimus-italian-multicenter-registry
#5
Cosmo Godino, Mauro Chiarito, Michael Donahue, Luca Testa, Riccardo Colantonio, Alberto Cappelletti, Alberto Monello, Valeria Magni, Diego Milazzo, Rosario Parisi, Annamaria Nicolino, Shahram Moshiri, Rossella Fattori, Gianfranco Aprigliano, Altin Palloshi, Giuseppe Caramanno, Matteo Montorfano, Francesco Bedogni, Carlo Briguori, Alberto Margonato, Antonio Colombo
BACKGROUND: To assess clinical outcomes of patients needing short dual antiplatelet therapy (S-DAPT) after PCI with Cre8 polymer-free amphilimus eluting-stent (AES). The Cre8-AES with pure i-Carbofilm coating was supposed to induce faster stent endothelialization and reduce device thrombogenicity. METHODS: We performed a sub-analysis of unrestricted consecutive patients treated with Cre8-AES between August 2011 and January 2015. Two groups were formed: 1) patients discharged with S-DAPT (≤3-month), because of high bleeding risk or attending urgent non-cardiac surgery; and 2) patients discharged with Recommended DAPT duration (R-DAPT; ≥6-month)...
January 5, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28104208/first-in-human-evaluation-of-a-novel%C3%A2-polymer-free-drug-filled-stent-angiographic-ivus-oct-and-clinical-outcomes-from%C3%A2-the%C3%A2-revelution-study
#6
Stephen G Worthley, Alexandre Abizaid, Ajay J Kirtane, Daniel I Simon, Stephan Windecker, Sandeep Brar, Ian T Meredith, Sharad Shetty, Ajay Sinhal, Alexandra Popma Almonacid, Daniel Chamié, Akiko Maehara, Gregg W Stone
OBJECTIVES: This study sought to assess the safety and effectiveness of the drug-filled stent (DFS) (Medtronic, Santa Rosa, California) in the treatment of patients with coronary artery disease. BACKGROUND: Polymer-free drug-eluting stents have the potential to improve clinical outcomes and facilitate shorter durations of dual antiplatelet therapy. The polymer-free DFS is made from a trilayered continuous wire with an outer cobalt chromium layer, a middle tantalum layer, and an inner lumen coated with sirolimus...
January 23, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28104076/comparison-of-propensity-score-methods-and-covariate-adjustment-evaluation-in-4-cardiovascular-studies
#7
REVIEW
Markus C Elze, John Gregson, Usman Baber, Elizabeth Williamson, Samantha Sartori, Roxana Mehran, Melissa Nichols, Gregg W Stone, Stuart J Pocock
Propensity scores (PS) are an increasingly popular method to adjust for confounding in observational studies. Propensity score methods have theoretical advantages over conventional covariate adjustment, but their relative performance in real-word scenarios is poorly characterized. We used datasets from 4 large-scale cardiovascular observational studies (PROMETHEUS, ADAPT-DES [the Assessment of Dual AntiPlatelet Therapy with Drug-Eluting Stents], THIN [The Health Improvement Network], and CHARM [Candesartan in Heart Failure-Assessment of Reduction in Mortality and Morbidity]) to compare the performance of conventional covariate adjustment with 4 common PS methods: matching, stratification, inverse probability weighting, and use of PS as a covariate...
January 24, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28103754/systematic-review-and-meta-analysis-of-drug-eluting-balloon-and-stent-for-infrapopliteal-artery-revascularization
#8
Jianbin Zhang, Xiaojie Xu, Jie Kong, Rongwei Xu, Xueqiang Fan, Jie Chen, Xia Zheng, Bo Ma, Mingsheng Sun, Zhidong Ye, Peng Liu
BACKGROUND: Drug-eluting balloon (DEB) and drug-eluting stent (DES) have been proposed for the treatment of infrapopliteal artery disease. We performed a systematic review and meta-analysis of the current available studies investigating outcomes of DEB and DES in the treatment of infrapopliteal artery disease. METHODS: Multiple databases were systematically searched to identify studies investigating the outcomes of DEB and DES in the treatment of patients with infrapopliteal artery disease...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28102731/microfluidic-whole-blood-testing-of-platelet-response-to-pharmacological-agents
#9
Ruizhi Li, Tilo Grosser, Scott L Diamond
Platelets present a number of intracellular and transmembrane targets subject to pharmacological modulation, either for cardiovascular disease reduction or as an unintended drug response. Microfluidic devices allow human blood to clot on a defined surface under controlled hemodynamic and pharmacological conditions. The potencies of a number of antiplatelet and anticancer drugs have been tested with respect to platelet deposition on collagen under flow. Inhibitors of cyclooxygenase-1 (COX-1) reduce platelet deposition, either when added ex vivo to blood or ingested orally by patients prior to testing...
January 19, 2017: Platelets
https://www.readbyqxmd.com/read/28102427/prospective-randomised-trial-of-the-time-dependent-antiplatelet-effects-of-500-mg-and-250-mg-acetylsalicylic-acid-i-%C3%A2-v-and-300-mg-p-%C3%A2-o-in-acs-acute
#10
Uwe Zeymer, Thomas Hohlfeld, Jürgen Vom Dahl, Raimund Erbel, Thomas Münzel, Ralf Zahn, Alexander Roitenberg, Stefanie Breitenstein, Ákos Ferenc Pap, Dietmar Trenk
Little is known about the onset of action after intravenous or oral administration of acetylsalicylic acid (ASA) in patients with acute coronary syndromes (ACS). The aim of the study was to compare intravenous 250 or 500 mg acetylsalicylic acid (ASA) with oral 300 mg in ASA naïve patients with ACS concerning the onset of antiplatelet effects measured by time dependent thromboxane inhibition. A total of 270 patients with ACS < 24 hours were randomised into one of three treatment arms comprising administration of a single dose of ASA as soon as possible after admission...
January 19, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28100965/aspirin-resistance-predicts-adverse-cardiovascular-events-in-patients-with-symptomatic-peripheral-artery-disease
#11
Tilak Pasala, Jennifer Soo Hoo, Mary Kate Lockhart, Rehan Waheed, Prasanna Sengodan, Jeffrey Alexander, Sanjay Gandhi
Antiplatelet therapy reduces the risk of myocardial infarction, stroke, and vascular death in patients who have symptomatic peripheral artery disease. However, a subset of patients who take aspirin continues to have recurrent cardiovascular events. There are few data on cardiovascular outcomes in patients with peripheral artery disease who manifest aspirin resistance. Patients with peripheral artery disease on long-term aspirin therapy (≥4 wk) were tested for aspirin responsiveness by means of the VerifyNow Aspirin Assay...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28099375/routine-neurosurgical-consultation-is-not-necessary-in-mild-blunt-traumatic-brain-injury
#12
Paul R Lewis, Casey E Dunne, James D Wallace, Jason B Brill, Richard Y Calvo, Jayraan Badiee, Michael J Sise, Vishal Bansal, C Beth Sise, Steven R Shackford
BACKGROUND: The Brain Trauma Foundation guidelines provide indications for neurosurgical intervention in traumatic brain injury (TBI) with moderate or severe intracranial hemorrhage (ICH). In TBI patients with less severe ICH, the utility of neurosurgical consultation remains unclear. We sought to determine if routine neurosurgical consultation is necessary for mild blunt TBI patients with ICH. METHODS: A retrospective cohort study was conducted on 500 consecutive blunt TBI patients aged 15 years or older with Glasgow Coma Scale score ≥13 and ICH on initial head computed tomography (CT) admitted to a Level 1 trauma center over 28 months...
January 17, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28095482/an-increase-in-mean-platelet-volume-platelet-count-ratio-is-associated-with-vascular-access-failure-in-hemodialysis-patients
#13
Dong Ho Shin, So Yon Rhee, Hee Jung Jeon, Ji-Young Park, Shin-Wook Kang, Jieun Oh
After stenosis of arteriovenous vascular access in hemodialysis patients, platelets play a crucial role in subsequent thrombus formation, leading to access failure. In a previous study, the mean platelet volume (MPV)/platelet count ratio, but not MPV alone, was shown to be an independent predictor of 4-year mortality after myocardial infarction. However, little is known about the potential influence of MPV/platelet count ratio on vascular access patency in hemodialysis patients. A total of 143 patients undergoing routine hemodialysis were recruited between January 2013 and February 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28095449/does-antiplatelet-therapy-during-bridging-thrombolysis-increase-rates-of-intracerebral-hemorrhage-in-stroke-patients
#14
Anne Broeg-Morvay, Pasquale Mordasini, Agnieszka Slezak, Kai Liesirova, Julia Meisterernst, Gerhard Schroth, Marcel Arnold, Simon Jung, Heinrich P Mattle, Jan Gralla, Urs Fischer
BACKGROUND: Symptomatic intracerebral hemorrhage (sICH) after bridging thrombolysis for acute ischemic stroke is a devastating complication. We aimed to assess whether the additional administration of aspirin during endovascular intervention increases bleeding rates. METHODS: We retrospectively compared bleeding complications and outcome in stroke patients who received bridging thrombolysis with (tPA+ASA) and without (tPA-ASA) aspirin during endovascular intervention between November 2008 and March 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28095326/additive-antithrombotic-effect-of-asp6537-a-selective-cyclooxygenase-cox-1-inhibitor-in-combination-with-clopidogrel-in-guinea-pigs
#15
Chinatsu Sakata, Ken-Ichi Suzuki, Yoshiaki Morita, Tomihisa Kawasaki
Clopidogrel (Plavix(®), Sanofi-Aventis), the adenosine diphosphate P2Y12 receptor antagonist, is reported to be effective in the prevention of cardiovascular events and is often used in combination with aspirin, particularly in high-risk patients. ASP6537 is a reversible cyclooxygenase (COX)-1 inhibitor that is under investigation as an anti-platelet agent. First, we investigated the reversibility of the antiplatelet effect of ASP6537 and its interaction with ibuprofen to compare the usability of ASP6537 with that of aspirin...
January 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28094166/carotid-stenting-prior-to-coronary-bypass-surgery-an-updated-systematic-review-and-meta-analysis
#16
REVIEW
K I Paraskevas, S Nduwayo, A N Saratzis, A R Naylor
OBJECTIVES: The aim was to determine 30-day outcomes in patients with concurrent carotid and cardiac disease who underwent carotid artery stenting (CAS) followed by coronary artery bypass grafting (CABG). METHODS: This was a systematic review with searches of PubMed/Medline, Embase, and Cochrane databases. "Same-day" procedures involved CAS + CABG being performed on the same day, and "staged" interventions involved at least 1 day's delay between undergoing CAS and then CABG...
January 13, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28093243/clinical-study-on-efficacy-of-allopurinol-in-patients-with-acute-coronary-syndrome-and-its-functional-mechanism
#17
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/28092314/novel-technique-for-subretinal-fluid-drainage-with-chandelier-assisted-scleral-buckle-surgery-cannula-controlled-drainage
#18
Abdulelah A Al-Abdullah
PURPOSE: To report a novel technique for subretinal fluid drainage in scleral buckle surgery. METHODS: A 26-gauge intravenous cannula with its needle was used to puncture the sclera; then, the needle (metallic part) was withdrawn to further introduce the cannula into the subretinal space. In addition, we describe using the 25-gauge microcannula of the chandelier light to inject the balanced salt solution to help restore the intraocular pressure and push the subretinal fluid through the intravenous cannula under direct visualization...
January 13, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28091972/-secondary-prevention-with-antiplatelet-therapy-in-cardiac-rehabilitation
#19
Maria M Wanitschek, Hannes F Alber
The long-term increased cardiovascular risk of patients with an acute coronary syndrome (ACS) is a challenging and common clinical problem. Recent evidence demonstrated an ischemic benefit for a prolonged dual antiplatelet therapy beyond the initial 12 months at the cost of an increased bleeding risk. Individual, careful and repeated risk-benefit analyses are essential for an optimized patient management in which cardiovascular rehabilitation providers may play a central role.
January 13, 2017: Wiener Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28091833/the-gap-between-indicated-and-prescribed-stroke-prevention-therapies-in-a-high-risk-geriatric-population
#20
Mohammed Shurrab, Eugene Crystal, Denis O'Donnell, Hrishikesh Navare, Paula Neves, Rasha Khatib, Ilan Lashevsky, David Newman
PURPOSE: The use of oral anticoagulation (OAC) in the elderly population with atrial fibrillation (AF) treated in long-term care (LTC) facilities is inconsistent. We examined the magnitude and sources of the gap between indicated and prescribed OAC in the elderly population with AF. METHODS: We retrospectively scanned the electronic medical record (EMR) and pharmacy data of 25 LTC facilities in Ontario, Canada. The diagnosis of AF was drawn from EMR. Different attributable risk factors for possible failure to prescribe OAC were examined...
January 16, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
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