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Intracardiac echocardiography in the diagnosis and closure of patent foramen ovale

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Journal of Geriatric Cardiology 2021年第9期18卷 697-701页

作者： Kang-Ning HAN xiao-teng ma Shi-Wei YANG Yu-Jie ZHOU Beijing Anzhen Hospital Capital Medical UniversityBeijing Institute of HeartLung and Blood Vessel DiseaseThe Key Laboratory of Remodeling-related Cardiovascular DiseaseMinistry of EducationBeijingChina

Patent foramen ovale(PFO)which is caused by failed fusion of septum primum and septum secundum,is the first leading congenital heart abnormality,affecting about 25%of the general population.

关键词： population. closure diagnosis

Excimer laser coronary atherectomy for a severe calcified coronary ostium lesion:A case report

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World Journal of Clinical Cases 2021年第34期9卷 10666-10670页

作者： Fang-Jie Hou xiao-teng ma Yu-Jie Zhou Jun Guan Department of Cardiology Qingdao Municipal HospitalQingdao 266000Shandong ProvinceChina epartment of Cardiology Beijing Anzhen HospitalCapital Medical UniversityBeijing 100029China

BACKGROUND Percutaneous coronary intervention can be challenging for ostial coronary artery lesions due to calcium burden and elastic fiber *** laser coronary atherectomy(ELCA)is a less common treatment for severe calcified coronary ostium *** SUMmaRY An 81-year-old male presented to the Cardiology Department of Qingdao Municipal Hospital with a 1-year history of chest *** angiography showed severe calcific stenosis(approximately 90%)in the right coronary artery *** right coronary artery ostium was unable to be advanced using a 2.5 mm×12.0 mm balloon(NC Sprinter,Medtronic,United States)or dilated using a 2.0 mm×12.0 mm balloon(Sprinter,Medtronic,United States).The patient underwent successful ELCA and balloon dilation of the calcified coronary ostium *** ELCA appears to be a safe and effective treatment for the management of severe calcified coronary ostium lesions.

关键词： Excimer laser coronary atherectomy Coronary ostium lesion Coronary calcified lesion Intravascular ultrasound Case report

Prognostic significance of multiple triglycerides-derived metabolic indices in patients with acute coronary syndrome

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Journal of Geriatric Cardiology 2022年第6期19卷 456-468页

作者： Qiao-Yu SHAO xiao-teng ma Zhi-Qiang YANG Qiu-Xuan LI Yu-Fei WANG Jing LIANG Hua SHEN xiao-Li LIU Yu-Jie ZHOU Dong-Mei SHI Zhi-Jian WANG Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityBeijingChina

BACKGROUND Triglyceride(TG)and its related metabolic indices,all recognized as surrogates of insulin resistance,have been demonstrated to be relevant to clinical ***,the relative value of these TG-related indices for predicting cardiovascular events among patients with acute coronary syndrome(ACS)has not been *** The TG,the triglyceride-glucose(TyG)index,the atherogenic index of plasma,TG to high-density lipoprotein cholesterol ratio,and the lipoprotein combine index were assessed in 1694 ACS patients undergoing percutaneous coronary *** primary endpoint was major adverse cardiovascular event(maCE),which was the composite of all-cause mortality,stroke,myocardial infarction,or unplanned repeat *** During a median follow-up of 31 months,345 patients(20.4%)had *** risk of the maCE was increased with higher TG and the four TG-derived metabolic indices[TG-adjusted hazard ratio(HR)=1.002,95%CI:1.001-1.003;TyG index-adjusted HR=1.736,95%CI:1.398-2.156;atherogenic index of plasma-adjusted HR=2.513,95%CI:1.562-4.043;TG to high-density lipoprotein cholesterol ratio-adjusted HR=1.148,95%CI:1.048-1.258;and lipoprotein combine index-adjusted HR=1.009,95%CI:1.004-1.014;PmaCE in addition to the baseline *** them,TyG index showed the best ability for predicting maCE compared with the other three indices from all the three measurements(PmaCE among ACS patients undergoing percutaneous coronary *** all the indices,TyG index showed the best ability to predict the risk of maCE.

关键词： patients coronary indices

Association of serum complement C1q with cardiovascular outcomes among patients with acute coronary syndrome undergoing percutaneous coronary intervention

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Journal of Geriatric Cardiology 2022年第12期19卷 949-959,1007-1010页

作者： Qiu-Xuan LI xiao-teng ma Qiao-Yu SHAO Zhi-Qiang YANG Jing LIANG Li-Xia YANG Dong-Mei SHI Yu-Jie ZHOU Zhi-Jian WANG Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityBeijing Institute of Heart Lung and Blood Vessel DiseaseBeijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic DiseaseClinical Center for Coronary Heart DiseaseCapital Medical UniversityBeijingChina

OBJECTIVE To determine the association of serum complement C1q levels with cardiovascular outcomes among patients with acute coronary syndrome(ACS)undergoing percutaneous coronary intervention(PCI),and evaluate the value of C1q modified by high-sensitivity C-reactive protein(hs-CRP)levels as an independent *** As a single-center prospective observational study,we analyzed 1701 patients who had received primary or elective PCI for ACS at Beijing Anzhen Hospital,Capital Medical University,Beijing,China between June 1,2016 and November 30,*** associations of C1q modified by hs-CRP with major adverse cardiovascular events(maCE)were determined in survival *** Patients with the lowest C1q tertile had the highest cumulative risk of maCE(log-rank P=0.007).In fully adjusted Cox regression models,stratifying the total population according to hs-CRP dichotomy,C1q was significantly associated with maCE in patients with hs-CRP levels less than 2 mg/L but not in those with 2 mg/L or more(P_(interaction)=0.02).In patients with hs-CRP levels less than 2 mg/L,with the lowest C1q tertile as reference,the risk of maCE was reduced by 40.0%in the middle C1q tertile[hazard ratio(HR)=0.600,95%CI:0.423–0.852,P=0.004]and by 43.9%in the highest C1q tertile(HR=0.561,95%CI:0.375–0.840,P=0.005).CONCLUSIONS Serum complement C1q is significantly associated with cardiovascular outcomes in patients with ACS undergoing PCI,only when hs-CRP levels are less than 2 mg/*** finding implicates the usefulness of C1q for the risk stratification in ACS patients with reduced systemic inflammation.

关键词： C1q patients coronary

GPa-level pressure-induced enhanced corrosion resistance in TiZrTaNbSn biomedical high-entropy alloy

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China Foundry 2024年第3期21卷 265-275页

作者： xiao-hong Wang Yu-lei Deng Qiao-yu Li Zhi-xin Xu teng-fei ma Xing Yang Duo Dong Dong-dong Zhu xiao-hong Yang Key Laboratory of Air-driven Equipment Technology of Zhejiang Province Quzhou UniversityQuzhou 324000ZhejiangChina School of materials Science and Engineering Taizhou UniversityTaizhou 318000ZhejiangChina

TiZrTaNb-based high-entropy alloys(HEAs)are research frontier of biomedical materials due to their high hardness,good yield strength,excellent wear resistance and corrosion ***,as an essential trace element in the human body that plays a significant role in physiological *** has stable chemical properties and a low elastic *** this study,a new material,TiZrTaNbSn HEAs,was proposed as a potential biomedical *** Ti_(35)Zr_(25)Ta_(15)Nb_(15)Sn_(10)biomedical high-entropy alloys(BHEAs)were successfully prepared through an arc melting furnace and then remelted using a German high-temperature and high-pressure apparatus under GPa-level(4 GPa and 7 GPa).The precipitation behavior of the needle-like HCP-Zr_(5)Sn_(3)phase that precipitates discontinuously at the grain boundary was successfully *** phase constitution,microstructure,and corrosion resistance of the alloy were *** results show that the needle-like HCP-Zr_(5)Sn_(3)phase is eliminated and the(Zr,Sn)-rich nano-precipitated phase is precipitated in the microstructure under high pressure,which leads to the narrowing of grain boundaries and consequently improves the corrosion resistance of the *** addition,the formation mechanisms of(Zr,Sn)-rich nanoprecipitates in BHEAs were *** Zr and Sn dissolve in the matrix due to the effect of high pressure,during the cooling process,they precipitate to form a(Zr,Sn)-rich nano-precipitated phase.

关键词： biomedical HEAs precipitation grain boundary corrosion resistance TiZrTaNbSn

CoDetect: cooperative anomaly detection with privacy protection towards UAV swarm

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Science China(Information Sciences) 2024年第5期67卷 325-326页

作者： teng LI Weiguo LIN Ruichen ma Zhuo ma Yulong SHEN Jianfeng ma School of Cyber Engineering Xidian University School of Computer Science and Technology Xidian University

As mission scenarios grow more complex, the role of a single unmanned aerial vehicle(UAV) is limited. The UAV swarm,surpassing the single UAV, dynamically establishes temporary communication networks, ensuring high transmission rates and expansive communication coverage [1]. Unlike a single UAV, a swarm faces increased security risks, requiring specific capabilities.(1) Anomalies detection.

关键词： Unmanned aerial vehicles (UAV)

A Novel Defender-Attacker-Defender Model for Resilient Distributed Generator Planning with Network Reconfiguration and Demand Response

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Energy Engineering 2024年第5期121卷 1223-1243页

作者： Wenlu Ji teng Tu Nan ma Nanjing Power Supply Company State Grid Jiangsu Electric Power Co.Ltd.Nanjing210019China

To improve the resilience of a distribution system against extreme weather,a fuel-based distributed generator(DG)allocation model is proposed in this *** this model,the DGs are placed at the planning *** an extreme event occurs,the controllable generators form temporary microgrids(MGs)to restore the load ***,a demand response program(DRP)mitigates the imbalance between the power supply and demand during extreme *** cope with the fault uncertainty,a robust optimization(RO)method is applied to reduce the long-term investment and short-term operation *** optimization is formulated as a tri-level defenderattacker-defender(DAD)*** the first level,decision-makers work out the DG allocation scheme;at the second level,the attacker finds the optimal attack strategy with maximum damage;and at the third level,restoration measures,namely distribution network reconfiguration(DNR)and demand response are *** problem is solved by the nested column and constraint generation(NC&CG)method and the model is validated using an IEEE 33-node *** studies validate the effectiveness and superiority of the proposed model according to the enhanced resilience and reduced cost.

关键词： Distribution system resilience defender-attacker-defender distributed generator demand response microgrids formation

A new method for evaluating wedges of steel plates and strips

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Journal of Iron and Steel Research International 2024年第7期31卷 1719-1735页

作者： xiao-bao ma xiao-xin ma Tao Wang Zhong-kai Ren Yu-cheng Ren College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan 030024ShanxiChina Ministry of Education Engineering Research Center of Advanced Metal Composite Forming Technology and Equipment Taiyuan University of TechnologyTaiyuan 030024ShanxiChina National Key Laboratory of Metal Forming Technology and Heavy Equipment Taiyuan University of TechnologyTaiyuan 030024ShanxiChina China National Heavy machinery Research Institute Co. Ltd.Xi'an 710018ShaanxiChina Faculty of Mechanical Engineering Hebei University of ArchitectureZhangjiakou 075000HebeiChina

To overcome the inaccuracy problem of the traditional wedge evaluation of steel plates and strips caused by the ran-domness of the thicknesses of two local points and improve the reliability of the wedge index,the double-centroid method for the wedge evaluation was proposed,and a model based on the centroid theory was ***,an integral model for the discrete thickness values of the cross-section profiles was *** discussion focused on the distinct characteristics of the two-point method,asymmetric method,and double-centroid method in evaluating the asymmetric distribution of *** three methods were employed to evaluate the wedge values of both the theoretical and measured cross-sections of steel plates and strips,and the accuracies of three wedge evaluation models were analyzed and *** results showed that the double-centroid method objectively reflects the degree and variation characteristics of the wedge values of the cross-sections of steel plates and strips,and this method is feasible,reliable,and outstanding.

关键词： Steel plate and strip Wedge Two-point method Double-centroid method Reliability

Comparison of inebilizumab or rituximab in addition to glucocorticoid therapy for neuromyelitis optica spectrum disorders

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International Journal of Ophthalmology(English edition) 2024年第6期17卷 1073-1078页

作者： Chu-Yuan Lou Yong Wang Jia-Yuan Xing teng ma Lei Tao xiao-Tang Wang Run-Sheng Wang Neuroophthalmic Center Xi’an People’s Hospital(Xi’an Fourth Hospital)Xi’an 710004Shaanxi ProvinceChina

AIM:To investigate the short-term efficacy and safety of inebilizumab for neuromyelitis optica spectrum disorders(NMOSD).METHODS:A total of 33 patients with NMOSD treated with inebilizumab(Group INB,n=15)or rituximab(Group RTX,n=18)in addition to high-dose glucocorticoids were *** groups underwent hormone shock therapy during the acute ***,Group INB received inebilizumab injections during the remission phase,while Group RTX received rituximab injections.A comparison of aquaporins 4(AQP4)titer values,peripheral blood B lymphocyte counts,and visual function recovery was conducted before and 8wk after ***,adverse reactions and patient tolerability were analyzed after using inebilizumab treatment ***:Following inebilizumab treatment,there was a significantly improvement in the visual acuity of NMOSD patients(Pmab treatment showed a partial effect in preventing optic nerve atrophy(Pmab,which has previously demonstrated substantial therapeutic efficacy(P>0.05).Furthermore,inebilizumab exhibited higher safety levels than that of rituximab ***:The combination of inebilizumab and high-dose glucocorticoids proves to be *** comparison to rituximab injections,inebilizumab displays better tolerance and ***,it demonstrates a partial effect in preventing optic nerve ***,it stands as an effective method to reduce the disability rates and improve the daily living ability of patients with NMOSD.

关键词： neuromyelitis optica spectrum disorders inebilizumab rituximab glucocorticoids