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Thrombosis models

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https://www.readbyqxmd.com/read/28932314/cost-effectiveness-analysis-of-treatment-acute-deep-vein-thrombosis-in-clinic-of-vascular-surgery-sarajevo
#1
Haris Vukas, Samra Kadić-Vukas, Adis Salihbegović, Muhamed Djedović, Dragan Totić, Haris Vranić, Amel Hadžimehmedagić
AIM: To compare hospital costs of acute deep vein thrombosis (ADVT) treatment in two periods of time. Evidence of repercussions on reducing costs during successful treatment. Attention was given to the necessity, costs and effectiveness of diagnostic procedures, treatment and complications. METHODS: A retrospective analysis of data obtained from patients medical history in a period from 2000 to 2016. Model management and safe practice of ADVT care consisted of clinical examination, laboratory, colour Doppler and invasive diagnostics...
August 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28931754/activated-signature-of-antiphospholipid-syndrome-neutrophils-reveals-potential-therapeutic-target
#2
Jason S Knight, He Meng, Patrick Coit, Srilakshmi Yalavarthi, Gautam Sule, Alex A Gandhi, Robert C Grenn, Levi F Mazza, Ramadan A Ali, Paul Renauer, Jonathan D Wren, Paula L Bockenstedt, Hui Wang, Daniel T Eitzman, Amr H Sawalha
Antiphospholipid antibodies, present in one-third of lupus patients, increase the risk of thrombosis. We recently reported a key role for neutrophils - neutrophil extracellular traps (NETs), in particular - in the thrombotic events that define antiphospholipid syndrome (APS). To further elucidate the role of neutrophils in APS, we performed a comprehensive transcriptome analysis of neutrophils isolated from patients with primary APS. Moreover, APS-associated venous thrombosis was modeled by treating mice with IgG prepared from APS patients, followed by partial restriction of blood flow through the inferior vena cava...
September 21, 2017: JCI Insight
https://www.readbyqxmd.com/read/28930952/military-use-of-tranexamic-acid-in-combat-trauma-does-it-matter
#3
Jeffrey T Howard, Zsolt T Stockinger, Andrew P Cap, Jeffrey A Bailey, Kirby R Gross
BACKGROUND: Tranexamic acid (TXA) has been previously reported to have a mortality benefit in civilian and combat-related trauma, and was thus added to the Joint Theater Trauma System Damage Control Resuscitation Clinical Practice Guideline. As part of ongoing system-wide performance improvement, the use of TXA has been closely monitored. The goal was to evaluate the efficacy and safety of TXA use in military casualties and provide additional guidance for continued use. METHODS: A total of 3,773 casualties were included in this retrospective, observational study of data gathered from a trauma registry...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28927193/timing-of-percutaneous-coronary-intervention-in-patients-with-non-st-elevation-myocardial-infarction-a-swedeheart-study
#4
Daniel Lindholm, Joakim Alfredsson, Oskar Angerås, Felix Böhm, Fredrik Calais, Sasha Koul, Bo Lagerqvist, Henrik Renlund, Giovanna Sarno, Christoph Varenhorst
Aims: Although routine invasive management is recommended in NSTEMI patients, the optimal timing of the procedure is not defined. The aim of this study was to assess outcomes in relation to timing of PCI in NSTEMI patients. Methods and results: This was an observational, prospective, multicentre cohort study from the SWEDEHEART registry including all Swedish PCI centres. We included 40 494 consecutive PCI-treated patients who were admitted to any coronary care unit from 2006 to 2013...
January 1, 2017: European Heart Journal. Quality of Care & Clinical Outcomes
https://www.readbyqxmd.com/read/28918098/identifying-novel-factor-xiia-inhibitors-with-pca-ga-svm-developed-vhts-models
#5
Jonathan Jun Feng Chen, Donald P Visco
There currently is renewed interest in blood clotting Factor XII as a potential target for thrombosis inhibition. Historically untargeted, there is little drug information with which to start drug candidate searches. Typical high-throughput screening can identify potential drug candidates, but is inefficient. Virtual high-throughput screening can be used to raise efficiency by focusing experimental efforts on compounds predicted to be active and is applied here to identify new Factor XIIa inhibitors. We combine principal component analysis, genetic algorithm and support vector machine to create the models used in the virtual high-throughput screening...
September 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28917273/mechanisms-and-risk-factors-of-thrombosis-in-cancer
#6
REVIEW
Anna Falanga, Laura Russo, Viola Milesi, Alfonso Vignoli
The close relationship between cancer and thrombosis is known since more than a century. Venous thromboembolism (VTE) may be the first manifestation of an occult malignancy in an otherwise healthy individual. Cancer patients commonly present with abnormalities of laboratory coagulation tests, indicating an ongoing subclinical hypercoagulable condition. The results of laboratory tests demonstrate that a process of fibrin formation and removal parallels the development of malignancy, which is of particular interest since fibrin and other clotting products are important for both thrombogenesis and tumor progression...
October 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28916935/risk-stratification-model-lower-extremity-ultrasonography-for-hospitalized-patients-with-suspected-deep-vein-thrombosis
#7
Emily C Alper, Ivan K Ip, Patricia Balthazar, Gregory Piazza, Samuel Z Goldhaber, Carol B Benson, Ronilda Lacson, Ramin Khorasani
BACKGROUND: The Wells score for deep venous thrombosis (DVT) has a high failure rate and low efficiency among inpatients. OBJECTIVE: To create and validate an inpatient-specific risk stratification model to help assess pre-test probability of DVT in hospitalized patients. DESIGN: Prospective cohort study of hospitalized patients undergoing lower-extremity ultrasonography studies (LEUS) for suspected DVT. Demographics, physical findings, medical history, medications, hospitalization, and laboratory and imaging results were collected...
September 15, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28906384/the-safety-and-efficacy-of-oral-anticoagulants-with-dual-versus-single-antiplatelet-therapy-in-patients-after-percutaneous-coronary-intervention-a-meta-analysis
#8
Jie Chen, Li-Yu Wang, Chao Deng, Xing-Hua Jiang, Tu-Gang Chen
BACKGROUND: A growing number of patients require oral anticoagulant (OAC) after undergoing percutaneous coronary intervention (PCI) with stent implantation due to the development of atrial fibrillation, but the optimal antithrombotic regimen remains controversial in these patients. METHODS: We systematically searched PUBMED, EMBASE, and CENTRAL from inception until September 2016 for randomized controlled trials or cohort studies that evaluated the comparative effects of TT versus DT...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28902808/-anticoagulant-therapy-of-venous-thromboembolic-complications-balancing-between-risks
#9
K V Lobastov, S V Sapelkin
This article is a review of the literature, related to the problem of recurrence of venous thromboembolic complications and the possibilities of their secondary prevention. The problems of determining the rational duration of anticoagulant therapy on the basis of an individual assessment of its benefit and risk are considered. The information on modern prognostic models allowing quantitative assessment of the probability of hemorrhagic and thrombotic events occurrence is presented (Vienna prediction model, DASH, HAS-BLED, stratification according to ACCP 2016)...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28900088/-estimation-of-time-dependent-microrna-expression-patterns-in-brain-tissue-leukocytes-and-blood-plasma-of-rats-under-photochemically-induced-focal-cerebral-ischemia
#10
V A Gusar, A V Timofeeva, I S Zhanin, S I Shram, V G Pinelis
miRNA expression over different time periods (24 and 48 h) using the quantitative RT-PCR and deep sequencing has been evaluated in a model of photochemically induced thrombosis. A combination of two approaches allowed us to determine the miRNA expression patterns caused by ischemia. Nine miRNAs, including let-7f-5p, miR-221-3p, miR-21-5p, miR-30c-5p, miR-30a-3p, miR-223-3p, miR-23a-3p, miR-22-5p, and miR-99a-5p, were differentially expressed in brain tissue and leukocytes of rats 48 h after onset of ischemia...
July 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28895771/platelet-reactivity-adjusted-antiplatelet-therapy-in-patients-with-percutaneous-coronary-intervention-a-meta-analysis-of-randomized-controlled-trials
#11
Zhenhua Xing, Liang Tang, Zhaowei Zhu, Jiabing Huang, Xiaofan Peng, Xinqun Hu
Numerous number of evidences show that high on-treatment platelet reactivity is a well-known risk factor for adverse events in patients after percutaneous coronary intervention (PCI). Controversial situations still exist regarding the effectiveness of tailoring antiplatelet therapy according to platelet function monitoring. The PubMed, Embase, and Cochrane Central databases were searched for randomized trials comparing platelet reactivity-adjusted antiplatelet therapy with conventional antiplatelet therapy in patients undergoing PCI...
September 12, 2017: Platelets
https://www.readbyqxmd.com/read/28894597/brs-implantation-in-long-lesions-requiring-device-overlapping-myth-or-reality
#12
REVIEW
Simone Biscaglia, Andrea Erriquez, Davide Bernucci, Giulia Bugani, Enrico Favaretto, Gianluca Campo
Dealing with bioresorbable vascular scaffolds (BVS) implantation in long lesions requiring device overlapping in this particular moment might seem a little provocative for several reasons. First, most studies testing BVS have focused on their safety and efficacy profile in simple patients with simple lesions. Second, ABSORB II did not meet its primary endpoint, while ABSORB III showed a higher rate of target vessel-myocardial infarction (TV-MI) at 2 years. Third, data on porcine model showed that overlapping zone has delayed but greater neointimal proliferation with consequent higher risk for scaffold thrombosis in the short-term and of in-scaffold restenosis in the long-term...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28894596/magmaris-a-new-generation-metallic-sirolimus-eluting-fully-bioresorbable-scaffold-present-status-and-future-perspectives
#13
REVIEW
Claudio Rapetto, Massimo Leoncini
Drug-eluting stents (DES) have reached a high safety and efficacy profile, becoming the best option for percutaneous coronary interventions (PCI) based revascularization. However, despite their optimal performance, a few concerns remain regarding their use, mainly due to permanent caging of the vessels and its consequences, first of all late stent thrombosis (ST). Bioresorbable scaffolds (BRS) aim to overcome these issues. The results achieved in randomized controlled trials (RCT) by the first generation of poly-L-lactic acid (PLLA) based scaffolds were promising at 1 year, but the first long term reports (albeit flawed by non-optimal implantation technique) have been disappointing, showing, for instance, an increased risk of ST and target vessel myocardial infarction (TV-MI)...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28893701/impact-of-vascular-calcifications-on-long-femoropopliteal-stenting-outcomes
#14
Adrien Kaladji, Pierre-Alexandre Vent, Aurore Danvin, Philippe Chaillou, Alain Costargent, Béatrice Guyomarch, Thibaut Quillard, Yann Gouëffic
OBJECTIVE: Vascular calcifications (VCs) may be a prognostic factor for outcome after endovascular treatment of peripheral arterial disease (PAD). Semi-quantitative analysis with X-ray imaging is the main limiting factor for assessing VCs. The aim of the present study was to find a correlation between the amount of VC with a CT scan quantification and mid-term results of endovascular treatment of TASC C/D femoropopliteal (FP) lesions. METHODS: Patients belonging to two previously published registries (STELLA and STELLA PTX) and who underwent a preoperative CT scan were retrospectively included in the study...
September 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28893379/comparison-of-outcomes-of-st-elevation-myocardial-infarction-treated-by-percutaneous-coronary-intervention-during-off-hours-versus-on-hours
#15
REVIEW
Tariq H Enezate, Jad Omran, Ashraf S Al-Dadah, Martin Alpert, Ehtisham Mahmud, Mitul Patel, Herbert D Aronow, Deepak L Bhatt
Previous studies have reported worse outcomes and longer door-to-balloon times (DBTs) in patients presenting with ST-elevation myocardial infarction (STEMI) after normal working hours, during weekends, and on holidays (off-hours) compared with normal business hours (on-hours). Recent studies, however, have reported similar outcomes regardless of presentation time. MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials were queried from January 1990 through December 2016. Only studies comparing STEMI outcomes during off-hours versus on-hours with percutaneous coronary intervention were included...
August 4, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28891912/postoperative-complications-affecting-survival-after-cardiac-arrest-in-general-surgery-patients
#16
Minjae Kim, Guohua Li
BACKGROUND: Postoperative cardiac arrest is uncommon but associated with a high mortality risk in general surgery patients and is often preceded by postoperative complications. The relationships between previous complications and mortality after cardiac arrest in general surgery patients have not been completely evaluated. METHODS: retrospective, observational cohort of general surgery in patients with cardiac arrest occurring after postoperative day (POD) #0 (and up to POD #30) was obtained from the 2012-2013 American College of Surgeons National Surgical Quality Improvement Program...
September 7, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28891865/opioid-prescription-levels-and-postoperative-outcomes-in-orthopedic-surgery
#17
Crispiana Cozowicz, Ashley Olson, Jashvant Poeran, Eva E Mörwald, Nicole Zubizarreta, Federico P Girardi, Alexander P Hughes, Madhu Mazumdar, Stavros G Memtsoudis
Given the basic need for opioids in the perioperative setting, we investigated associations between opioid prescription levels and postoperative outcomes using population based data of orthopedic surgery patients. We hypothesized that increased opioid amounts would be associated with higher risk for postoperative complications. Data was extracted from the national Premier Perspective database (2006-2013); N=1,035,578 lower joint arthroplasties and N= 220,953 spine fusions. Multilevel multivariable logistic regression models measured associations between opioid dose prescription and postoperative outcomes, studied by quartile of dispensed opioid dose...
September 1, 2017: Pain
https://www.readbyqxmd.com/read/28891190/is-multiple-overlapping-uncovered-stents-technique-suitable-for-aortic-aneurysm-repair
#18
Siang Lin Yeow, Hwa Liang Leo
A computational fluid dynamic model to assess the impact of flow-diverter device on intra-aneurysmal flow in complex aortic aneurysm from the viewpoint of hemodynamics is presented. The aim of this study is to investigate the hemodynamic effects of an endovascular flow-diverter technique using multiple overlapping uncovered stents (MOUS) in the treatment of complex aortic aneurysm involving side branch. The placement of porous barrier such as MOUS across the aneurysm alters the blood flow pattern in the aneurysm sac...
September 11, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28887505/impaired-fibrinolysis-and-lower-levels-of-plasma-%C3%AE-2-macroglobulin-are-associated-with-an-increased-risk-of-severe-asthma-exacerbations
#19
Stanislawa Bazan-Socha, Lucyna Mastalerz, Agnieszka Cybulska, Lech Zareba, Romy Kremers, Michal Zabczyk, Grazyna Pulka, Teresa Iwaniec, Jan G Bazan, Coenraad Hemker, Anetta Undas
Recently we have reported that asthma is associated with enhanced plasma thrombin formation, impaired fibrinolysis and platelet activation. In the present study we investigated whether described prothrombotic blood alterations might predispose to thromboembolic events or asthma exacerbations. In 164 adult asthmatics we assessed clinical events during 3-year follow-up and analyzed their associations with measured at baseline prothrombotic blood parameters. Data were obtained from 157 (95.7%) of the asthma patients...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28886060/benzene-exposure-is-associated-with-cardiovascular-disease-risk
#20
Wesley Abplanalp, Natasha DeJarnett, Daniel W Riggs, Daniel J Conklin, James P McCracken, Sanjay Srivastava, Zhengzhi Xie, Shesh Rai, Aruni Bhatnagar, Timothy E O'Toole
Benzene is a ubiquitous, volatile pollutant present at high concentrations in toxins (e.g. tobacco smoke) known to increase cardiovascular disease (CVD) risk. Despite its prevalence, the cardiovascular effects of benzene have rarely been studied. Hence, we examined whether exposure to benzene is associated with increased CVD risk. The effects of benzene exposure in mice were assessed by direct inhalation, while the effects of benzene exposure in humans was assessed in 210 individuals with mild to high CVD risk by measuring urinary levels of the benzene metabolite trans,trans-muconic acid (t,t-MA)...
2017: PloS One
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