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排序方式: 共有5082条查询结果,搜索用时 15 毫秒
41.
Shqipdona Lahu Peter Bristot Senta Gewalt Alexander Goedel Daniele Giacoppo Stefanie Schüpke Heribert Schunkert Adnan Kastrati Nikolaus Sarafoff 《Journal of atherosclerosis and thrombosis》2022,29(7):1001
Aim: The optimal duration of dual antiplatelet therapy (DAPT) after drug-eluting stent (DES) implantation is an ongoing debate and novel data has emerged. The aim of this meta-analysis was to assess outcomes of short vs. control DAPT duration. In addition, the role of single antiplatelet therapy (SAPT) after DAPT with either aspirin or P2Y12 inhibitor monotherapy was analyzed. Methods: The authors searched MEDLINE and Cochrane databases and proceedings of international meetings for randomized controlled trials (RCT) comparing ≤ 3 months with ≥ 6 months DAPT after DES implantation. The primary and co-primary outcomes of interest were definite or probable stent thrombosis (ST) and bleeding. In addition, we performed an analysis on studies who continued with either aspirin or P2Y12 monotherapy after DAPT. Results: 9 RCTs comprising 41,864 patients were included and we analyzed a short DAPT duration of median 1.5 months vs. 12.1 months in the control group. The risk for ST was similar with short vs. control DAPT duration (0.5 vs. 0.5%; hazard ratio 1.17[95% CI 0.89-1.54];p=0.26). Bleeding was significantly reduced with short vs. control DAPT duration (1.9 vs. 3.0%; 0.65[0.54-0.77];p<0.0001). ST was not different between short vs. control DAPT duration in the analysis of the 4 RCTs who continued with aspirin after DAPT and the 5 P2Y12 RCTs, respectively, and no heterogeneity was detected (p=0.861). Bleeding was also reduced with short vs. control DAPT in both the aspirin (1.2 vs. 1.7%; 0.71[0.51-0.99];p=0.04) and P2Y12 inhibitor studies (2.1 vs. 3.4%; 0.62[0.47-0.80];p=0.0003) and no heterogeneity was detected (p=0.515). Conclusions: Our meta-analysis shows that short DAPT ≤ 3 months followed by SAPT reduces bleeding and is not associated with an increase in ST. The results were consistent within the aspirin and P2Y12 SAPT studies. 相似文献
42.
Raisuke Iijima MD Gjin Ndrepepa MD Julinda Mehilli MD Franz-Josef Neumann MD Stefanie Schulz MD Jurriën ten Berg MD Olga Bruskina MD Franz Dotzer MD Josef Dirschinger MD Peter B. Berger MD Albert Schömig MD Adnan Kastrati MD 《Clinical research in cardiology》2008,97(3):160-168
Objective We investigated how does troponin level (TnT) affect the benefit achieved by abciximab in patients with acute coronary syndromes
(ACS) undergoing percutaneous coronary intervention (PCI) after pretreatment with a high loading dose of clopidogrel.
Methods The Intracoronary Stenting and Antithrombotic Regimen: Rapid Early Action for Coronary Treatment (ISAR-REACT 2) trial included
2,022 patients with non-ST elevation ACS undergoing PCI who were randomized to abciximab or placebo after pretreatment with
600 mg of clopidogrel. The patients were divided into groups with elevated TnT level (n = 1,049) and no elevated TnT level (n = 973). The primary end point of the trial was the composite of death, myocardial infarction and urgent reintervention at
30 days.
Results In patients with elevated TnT level the incidence of the primary end point was 13.1% in the abciximab group Vs. 18.3% in the
placebo group [relative risk (RR): 0.70; 95% confidence interval (CI), 0.52–0.95, P = 0.02]. The combined incidence of death or myocardial infarction was 12.9% in the abciximab group vs. 17.9% in the placebo
group (RR: 0.71; 95% CI, 0.52–0.96, P = 0.03). In contrast, the incidence of the primary end point in patients with no elevated TnT level was identical in both
treatment groups (4.6%). The risk of bleeding was not related to TnT level.
Conclusions Baseline troponin level affects the benefit of abciximab in patients with ACS undergoing PCI after pretreatment with a high
loading dose of clopidogrel. Abciximab reduces the risk of ischemic events only in patients with ACS and elevated troponin
level. 相似文献
43.
Ju-Hyeong Park Eungul Lee Ethan D. Fechter-Leggett Ellie Williams Shobha Yadav Arundhati Bakshi Stefanie Ebelt Jesse E. Bell Heather Strosnider Ginger L. Chew 《Environmental health perspectives》2022,130(8)
Background: Studies of thunderstorm asthma to understand risk factors using high-resolution climate data and asthma outcomes on a large scale are scarce. Moreover, thunderstorm asthma is not well studied in the United States.Objectives: We examined whether climate parameters involved in thunderstorms are associated with emergency department (ED) visits for acute asthma attacks in the United States.Methods: We analyzed 63,789 asthma-related, daily ED visits for all age groups, and thunderstorm-associated climate data in Louisiana during 2010 through 2012. We performed time-series analyses using quasi-Poisson regression models with natural cubic splines of date, parish, holiday, day of week, season, daily maximum concentrations of ozone () and fine particulate matter [PM in aerodynamic diameter ()], and daily mean pressure, precipitation, and temperature. Because of a significant interaction effect between temperature and lightning days on asthma-related visits, we performed stratified analyses by days with/without lightning or thunderstorm (defined by any lightning and precipitation).Results: On thunderstorm days, higher asthma-related ED visits were associated with higher daily mean precipitation [ (95% CI: 1.009, 1.300)] and lower daily mean temperature [ per 1°C change (1.000–1.021)] without carry-over effect to the next non-thunderstorm day. These higher risks were found mainly among children and adults of age. We observed similar results on lightning days. However, we did not find similar associations for non-thunderstorm or non-lightning days. Daily maximum and levels were not significantly associated with asthma ED visits on thunderstorm days.Discussion: Higher precipitation and lower temperature on thunderstorm days appear to contribute to asthma attacks among people with asthma, suggesting they should consider taking precautions during thunderstorms. EDs should consider preparing for a potential increase of asthma-related visits and ensuring sufficient stock of emergency medication and supplies for forecasted severe thunderstorm days. https://doi.org/10.1289/ EHP10440相似文献
44.
Sara Denicolò Paul Perco Stefanie Thöni Gert Mayer 《Journal of diabetes and its complications》2021,35(7):107931
Cardiovascular and renal complications are a major burden for individuals with type 2 diabetes mellitus (T2DM). Besides lifestyle interventions, current guidelines recommend combination drug therapy to prevent or delay the incidence and progression of comorbidities. However, non-adherence to pharmacotherapy is common in chronic conditions such as T2DM and a barrier to successful disease management. Numerous studies have associated medication non-adherence with worse outcome as well as higher health care costs. This narrative review provides (i) an overview on adherence measures used within and outside research settings, (ii) an estimate on the prevalence of non-adherence to antidiabetic and cardiovascular drugs in T2DM, and (iii) specifically focuses on the association of non-adherence to these drugs with renal and cardiovascular outcomes. 相似文献
45.
Schemm Stefanie A. Schemm Andreas Schwenkhagen Anneliese Schaudig Katrin 《Der Gyn?kologe》2019,52(6):463-472
Die Gynäkologie - Frauen im Erwachsenenalter mit einem angeborenen Herzfehler (EMAH) werden in Zukunft aufgrund des medizinischen Fortschritts eine immer größere Patientinnengruppe... 相似文献
46.
Regan CP Stump GL Kane SA Lynch JJ 《The Journal of pharmacology and experimental therapeutics》2009,328(2):571-578
Calcitonin gene-related peptide (CGRP) is a sensory neuropeptide that also has potent vasodilator activity. There are conflicting preclinical reports regarding the effect of CGRP receptor antagonism in the setting of myocardial ischemia. The present study was conducted in a canine model in which regional myocardial ischemia was reproducibly evoked by serial periods of atrial pacing (80 beats per min above baseline rate) in the presence of a 40% stenosis of the left anterior descending (LAD) coronary artery. Ischemia severity was quantitated by changes in unipolar epicardial electrograms (EG) recorded in the area of ischemia. In validation studies, the calcium entry blocker diltiazem reduced ischemia severity (before versus after treatment: DeltaEG, 1.92 +/- 0.23 versus 0.54 +/- 0.24 mV; p < 0.05) and tended to increase LAD flow (7.7 +/- 0.7 versus 9.4 +/- 1.4 ml/min; p = 0.10), whereas the coronary constrictor serotonin increased ischemia severity (before versus after treatment: DeltaEG, 2.11 +/- 0.44 versus 4.90 +/- 1.46 mV; p < 0.05) concomitant with a reduction in LAD flow (9.1 +/- 1.1 versus 5.4 +/- 1.5 ml/min; p < 0.05). A 30 microg/kg/min i.v. infusion test dose of the CGRP receptor antagonist CGRP((8-37)) was validated by demonstrating complete block of the depressor effects of exogenous i.v. 0.03 to 0.3 microg/kg CGRP. This dose of CGRP((8-37)), administered either intravenously or intra-atrially, had no effect on ischemia severity or paced LAD flow, indicating no intrinsic effect of CGRP receptor antagonism on the severity of acute myocardial ischemia. Likewise, the administration of a hemodynamically active dosing regimen of CGRP (0.03 microg/kg/min i.v.) had no effect on paced coronary flow or ischemia severity, suggesting no major role of CGRP in regulating ischemic blood flow. 相似文献
47.
48.
Erythroid pyrimidine 5'-nucleotidase: cloning,developmental expression,and regulation by cAMP and in vivo hypoxia 总被引:1,自引:1,他引:1
A characteristic process of terminal erythroid differentiation is the degradation of ribosomal RNA into mononucleotides. The pyrimidine mononucleotides can be dephosphorylated by pyrimidine 5'-nucleotidase (P5N-I). In humans, a lack of this enzyme causes hemolytic anemia with ribosomal structures and trinucleotides retained in the red blood cells (RBCs). Although the protein/nucleotide sequence of P5N-I is known in mammals, the onset and regulation of P5N-I during erythroid maturation is unknown. However, in circulating chicken embryonic RBCs, the enzyme is induced together with carbonic anhydrase (CAII) and 2,3-bisphosphoglycerate (2,3-BPG) by norepinephrine (NE) and adenosine, which are released by the embryo under hypoxic conditions. Here, we present the chicken P5N-I sequence and the gene expression of P5N-I during RBC maturation; the profile of gene expression follows the enzyme activity with a rise between days 13 and 16 of embryonic development. The p5n-I expression is induced (1) in definitive but not primitive RBCs by stimulation of beta-adrenergic/adenosine receptors, and (2) in definitive RBCs by hypoxic incubation of the chicken embryo. Since embryonic RBCs increase their hemoglobin-oxygen affinity by degradation of nucleotides such as uridine triphosphate (UTP) and cytidine triphosphate (CTP), the induction of p5n-I expression can be seen as an adaptive response to hypoxia. 相似文献
49.
Tjallie van der Kooi Hugo Sax Didier Pittet Jaap van Dissel Birgit van Benthem Bernhard Walder Vanessa Cartier Lauren Clack Sabine de Greeff Martin Wolkewitz Stefanie Hieke Hendriek Boshuizen Jan van de Kassteele Annemie Van den Abeele Teck Wee Boo Magda Diab-Elschahawi Uga Dumpis Camelia Ghita Susan FitzGerald Tatjana Lejko Kris Leleu Mercedes Palomar Martinez Olga Paniara Márta Patyi Paweł Schab Annibale Raglio Emese Szilágyi Mirosław Ziętkiewicz Albert W. Wu Hajo Grundmann Walter Zingg On behalf of the PROHIBIT consortium 《Intensive care medicine》2018,44(1):48-60
Purpose
To test the effectiveness of a central venous catheter (CVC) insertion strategy and a hand hygiene (HH) improvement strategy to prevent central venous catheter-related bloodstream infections (CRBSI) in European intensive care units (ICUs), measuring both process and outcome indicators.Methods
Adult ICUs from 14 hospitals in 11 European countries participated in this stepped-wedge cluster randomised controlled multicentre intervention study. After a 6 month baseline, three hospitals were randomised to one of three interventions every quarter: (1) CVC insertion strategy (CVCi); (2) HH promotion strategy (HHi); and (3) both interventions combined (COMBi). Primary outcome was prospective CRBSI incidence density. Secondary outcomes were a CVC insertion score and HH compliance.Results
Overall 25,348 patients with 35,831 CVCs were included. CRBSI incidence density decreased from 2.4/1000 CVC-days at baseline to 0.9/1000 (p < 0.0001). When adjusted for patient and CVC characteristics all three interventions significantly reduced CRBSI incidence density. When additionally adjusted for the baseline decreasing trend, the HHi and COMBi arms were still effective. CVC insertion scores and HH compliance increased significantly with all three interventions.Conclusions
This study demonstrates that multimodal prevention strategies aiming at improving CVC insertion practice and HH reduce CRBSI in diverse European ICUs. Compliance explained CRBSI reduction and future quality improvement studies should encourage measuring process indicators.50.
Dectin-1 is the major receptor for fungal β-glucans. The activation of Dectin-1 leads to the up-regulation of surface molecules on dendritic cells (DCs) and cytokine secretion. Furthermore, Dectin-1 is important for the recruitment of leukocytes and the production of inflammatory mediators. Peroxisome proliferator-activated receptor-γ (PPAR-γ) and its ligands, cyclopentenone prostaglandins or thiazolidinediones, have modulatory effects on B-cell, T-cell, and DC function. In the present study, we analyzed the effects of troglitazone (TGZ), a high-affinity synthetic PPAR-γ ligand, on the Dectin-1-mediated activation of monocyte-derived human DCs. Dectin-1-mediated activation of DCs was inhibited by TGZ, as shown by down-regulation of costimulatory molecules and reduced secretion of cytokines and chemokines involved in T-lymphocyte activation. Furthermore, TGZ inhibited the T-cell-stimulatory capacity of DCs. These effects were not due to a diminished expression of Dectin-1 or to a reduced phosphorylation of spleen tyrosine kinase; they were mediated by the inhibition of downstream signaling molecules such as mitogen-activated protein kinases and nuclear factor-κB. Furthermore, curdlan-mediated accumulation of caspase recruitment domain 9 (CARD9) in the cytosol was inhibited by TGZ. Our data demonstrate that the PPAR-γ ligand TGZ inhibits Dectin-1-mediated activation by interfering with CARD9, mitogen-activated protein kinase, and nuclear factor-κB signaling pathways. This confirms their important role as negative-feedback regulators of potentially harmful inflammatory responses. 相似文献