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balloons

英语大王 2006年第3期 5-5页

作者：张立明

Drug-eluting balloons versus new generation drug-eluting stents for the management of in-stent restenosis: an updated meta-analysis of randomized studies

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Journal of Geriatric Cardiology 2019年第6期16卷 448-457页

作者： Lei GAO Ya-Bin WANG Jing JING Ming ZHANG Yun-Dai CHEN Department of Cardiology Chinese PLA General Hospital

Background New-generation drug-eluting stents (DES) was more effective in the treatment of in-stent restenosis (ISR) compared with the first-generation DES. Drug-eluting balloons (DEB) and new-generation DES had been available strategies in treatment of bare-metal stents/DES ISR (BMS/DES-ISR). Six new randomized trials have recently examined the angiographic outcomes and one-year clinical outcomes of DEB and new generation DES in BMS/DES-ISR. However, the optimal management for BMS/DES-ISR lesions remains controversial. Methods We searched the randomized clinical trials evaluating the angiographic outcomes and one-year clinical outcomes of DEB and new-generation DES in patients with BMS/DES-ISR. The primary endpoints were the angiographic outcomes, including the minimal luminal diameter (MLD), diameter stenosis %(DS%), late lumen loss (LLL), and binary restenosis (BR). Results A total of six randomized clinical trials with 1177 BMS/DES-ISR patients were included in our meta-analysis. For angiographic outcomes, there were significantly less MLD and more DS% with DEB compared to new-generation DES (MLD: MD =?0.18, 95% CI:?0.31– ?0.04, P < 0.001;DS%: MD = 5.68, 95% CI: 1.00–10.37, P < 0.001). Moreover, for one-year clinical outcomes, DEB was associated with a significant increase risk in target lesion revascularization (TLR)(RR = 2.93, 95% CI: 1.50–5.72, P = 0.002). However, DEB was associated with higher risks of major adverse cardiac event, target vessel revascularization, TLR, BR, and more DS% only in DES-ISR group. Conclusions DEB and new-generation DES have the similar clinical efficacy for the treatment of BMS-ISR. However, DES showed more MLD, less DS%, and a decreased risk of TLR for the treatment of DES-ISR.

关键词： Drug-eluting balloons Drug-eluting stents In-stent restenosis Meta-analysis

维普期刊数据库

Acoustic Band Gaps in Three-Dimensional NaCl-Type Acoustic Crystals

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Chinese Physics Letters 2008年第8期25卷 2922-2925页

作者：方弄玉吴福根张欣 Department of Experiment Education Guangdong University of Technology Guangzhou 510006

We present the acoustic band gaps （ABGs） for a geometry of three-dimensional complex acoustic crystals： the NaCl-type structure. By using the super cell method based on the plane-wave expansion method （PWE）, we study the three configurations formed by water objects （either a sphere of different sizes or a cube） located at the vertices of simple cubic （SC） lattice and surrounded by mercury background. The numerical results show that ABGs larger than the original SC structure for all the three configurations can be obtained by adjusting the length-diameter ratio of adjacent objects but keeping the filling fraction （f = 0.25） of the unit cell unchanged. We also compare our results with that of 3D solid composites and find that the ABGs in liquid composites are insensitive to the shapes as that in the solid composites. We further prove that the decrease of the translation group symmetry is more efficient in creating the ABGs in 3D water-mercury systems.

关键词： 2-DIMENSIONAL PHONONIC CRYSTALS CUBIC ARRAYS STOP BANDS SYMMETRY balloons RODS

Fiber-based radio frequency dissemination for branching networks with passive phase-noise cancelation

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Chinese Optics Letters 2015年第6期13卷 36-39页

作者：白钰王波高超苗菁朱玺王力军 Joint Institute for Measurement Science Department of Physics Tsinghua University The State Key Lab of Precision Measurement Technology and Instruments Department of Precision InstrumentsTsinghua University National Institute of Metrology

We demonstrate a new fiber-based radio frequency （RF） dissemination scheme suitable for a star-shaped branching network. Without any phase controls on the RF signals or the use of active feedback-locking components, the highly stable reference frequency signal can be delivered to several remote sites simultaneously and independently. The relative frequency stabilities of 6 ×10^-15/s and 7×10^-17/10^4 s are obtained for a 10 km dissemination. This low cost and scalable method can be applied to a large-scale frequency synchroniza- tion network.

关键词： balloons Locks (fasteners) Scalability Textile fibers

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Treatment of Atherosclerotic Disease of the Femoral Artery: Randomized Controlled Trials and Meta-Analyses. Should You Be Sceptical?

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Surgical Science 2019年第7期10卷 235-254页

作者： Raymond Englund St George Private Hospital Kogarah Sydney

A narrative review of the data provided by Randomised Controlled clinical trials and meta-analyses was undertaken to assess how much reliance a clinician could place on these in selecting a treatment for patients with disease of the Femoral artery. An attempt was made to detect and review every clinical trial and meta-analysis published on treatments relating to disease of the femoral artery but not relating to drug treatment. Disease of the femoral artery in >65 years age group occurs in approximately 20% of the population but symptomatology was present in 40%. In almost all trials the predominant (>90%) indication for treatment was intermittent claudication. In this setting, clinical benefit was limited and did not extend beyond 12 months. Mortality, from co-morbidities was high. The Basil Trial was the only one to examine intervention for critical limb ischemia. The results for Bypass surgery and Percutaneous transarterial balloon angioplasty (PTA) were equivalent. There is little evidence to support the use of PTA or stenting other than in the treatment of patients with critical limb ischemia.

关键词： Femoral Artery Stent (Nitinol Drug-Eluting Covered) Percutaneous Balloon Angioplasty Drug Eluting balloons Randomised Controlled Trials Meta-Analyses Intermittent Claudication Critical Limb Ischemia Patency Clinical Benefit

Current evidence of drug-elution therapy for infrapopliteal arterial disease

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World Journal of Cardiology 2019年第1期11卷 13-23页

作者： Stavros Spiliopoulos Nikiforos Vasiniotis Kamarinos Elias Brountzoss 2nd Radiology Department Interventional Radiology Unit University of Athens Attikon University General Hospital

New and sophisticated endovascular devices, such as drug-eluting stents(DES)and drug-coated balloons(DCB), provide targeted drug delivery to affected vessels. The invention of these devices has made it possible to address the reparative cascade of arterial wall injury following balloon angioplasty that results in restenosis. DESs were first used for the treatment of infrapopliteal lesions almost 20 years ago. More recently, however, DCB technology is being investigated to improve outcomes of endovascular below-the-knee arterial procedures, avoiding the need for a metallic scaffold. Today, level IA evidence supports the use of infrapopliteal DES for short to medium length lesions,although robust evidence that justifies the use of DCBs in this anatomical area is missing. This review summarizes and discusses all available data on infrapopliteal drug-elution devices and highlights the most promising future perspectives.

关键词： Drug-elution therapy Infrapopliteal arterial disease Current evidence Drugcoated balloons Drug-eluting stents

The Day for My Mother

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天天爱英语 2019年第6期 39-39页

作者：朱宵颖张春花(指导) 江苏省常熟市花溪小学不详

It was a special day today. We gave Mom a surprise. Early in the morning, we woke Mom up. My little brother asked Mom to take him out. As soon as they left home, my father and I drove to the baking shop to buy a birthday cake. Then, we went to the supermarket to buy the presents. We bought a bunch of carnations and a box of chocolate. After that, we went back home and decorated our living room with some balloons and flowers.

关键词： The Day for My Mother special day balloons and flowers