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Takotsubo cardiomyopathy misdiagnosed as acute myocardial infarction under the Chest Pain Center model:A case report

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World Journal of Clinical Cases 2022年第8期10卷 2616-2621页

作者： li-ping meng Peng Zhang Department of Cardiology Shaoxing People's Hospital(Shaoxing HospitalZhejiang University School of Medicine)Shaoxing 312000Zhejiang ProvinceChina

BACKGROUND With the spread and establishment of the Chest Pain Center in China,adhering to the idea that“time is myocardial cell and time is life”,many hospitals have set up a standardized process that ensures that patients with acute myocardial infarction(AMI)who meet emergency percutaneous coronary intervention(PCI)guidelines are sent directly to the DSA room by the prehospital emergency doctor,saving the time spent on queuing,registration,payment,re-examination by the emergency doctor,and obtaining consent for surgery after arriving at the *** cardiomyopathy is an acute disease that is triggered by intense emotional or physical stress and must be promptly differentiated from AMI for its appropriate *** SUMMARY A 52-year-old female patient was taken directly to the catheterization room to perform PCI due to 4 h of continuous thoracalgia and elevation of the ST segment in the V3–V5 lead,without being transferred to the emergency department according to the Chest Pain Center *** doses of aspirin,clopidogrel and statins were administered and informed consent for PCI was signed in the *** first look,the patient looked nervous in the DSA *** angiography showed no obvious *** ventricular angiography showed that the contraction of the left ventricular apex was weakened,and the systolic period was ballooning out,showing a typical“octopus trap”*** patient was diagnosed with Takotsubo *** days later,the patient had no symptoms of thoracalgia,and the serological indicators returned to *** was discharged with a prescription of *** Under the Chest Pain Center model for the treatment of patients with chest pain showing ST segment elevation,despite the urgency of time,Takotsubo cardiomy-opathy must be promptly differentiated from AMI for its appropriate management.

关键词： Chest pain center Takotsubo cardiomyopathy Acute myocardial infarction Percutaneous coronary intervention Case report

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Acute coronary artery stent thrombosis caused by a spasm:A case report

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World Journal of Clinical Cases 2022年第9期10卷 2923-2930页

作者： li-ping meng ping Wang Fang Peng Department of Cardiology Shaoxing People's HospitalShaoxing 312000Zhejiang ProvinceChina

BACKGROUND Acute stent thrombosis(AST)is a serious complication of percutaneous coronary intervention(PCI).The causes of AST include the use of stents of inappropriate diameters,multiple overlapping stents,or excessively long stents;incomplete stent expansion;poor stent adhesion;incomplete coverage of dissection;formation of thrombosis or intramural hematomas;vascular injury secondary to intraoperative mechanical manipulation;insufficient dose administration of postoperative antiplatelet medications;and resistance to antiplatelet *** of AST secondary to coronary artery spasms are rare,with only a few reports in the *** SUMMARY A 55-year-old man was admitted to the hospital with a chief complaint of back pain for 2 *** was diagnosed with coronary heart disease and acute myocardial infarction(AMI)based on electrocardiography results and creatinine kinase myocardial band,troponin I,and troponin T levels.A 2.5 mm×33.0 mm drugeluting stent was inserted into the occluded portion of the right coronary ***,clopidogrel,and atorvastatin were *** days later,the patient developed AST after taking a bath in the *** coronary angiography showed occlusion of the proximal stent,and intravascular ultrasound showed severe coronary artery *** patient’s AST was thought to be caused by coronary artery spasms and treated with percutaneous transluminal coronary ***,he was administered diltiazem to inhibit coronary artery spasms and prevent future episodes of *** survived and reported no discomfort at the 2-mo follow-up after the operation and initiation of drug *** Coronary spasms can cause both AMI and *** patients who exhibit coronary spasms during PCI,diltiazem administration could reduce spasms and prevent future AST.

关键词： Acute stent thrombosis Coronary spasm Kounis syndrome Case report

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Impact of invasive treatment strategy on health-related quality of life six months after non-ST-elevation acute coronary syndrome

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Journal of Geriatric Cardiology 2014年第3期11卷 206-211页

作者： li-Xia YANG Yu-Jie ZHOU Zhi-Jian WANG Yue-ping li meng CHAI Department of Cardiology Beijing Anzhen Hospital Capital Medical University N0. 2 Anzhen Avenue Chaoyang District Beijing 100029 China

BackgroundFew studies have compared change in the health-related quality of life （HRQL） following treatment of non-ST-elevation acute coronary syndrome （NSTE-ACS） with either percutaneous coronary intervention （PCI） or coronary artery bypass grafting （CABG）. This study is tocompare changes in HRQL six months after hospital discharge between NSTE-ACS pa-tients who underwent either PCI or *** HRQL was assessed using the Seattle angina questionnaire at admission and six months after discharge in 1012 consecutive patients with NSTE-ACS. To assess associations of PCI and CABG with HRQL changes, logistic regression models were constructed treating changes in the score of each dimension of the Seattle angina question-naire as dependent *** Although both the PCI and CABG groups experienced angina relief and other improvements at 6-month follow-up （P〈0.001）, the CABG relative to PCI group showed more significant improvements in angina frequency （P= 0.044） and quality of life （P= 0.028）. In multivariable logistic analysis, CABG also was an independent predictor for both im-provement of angina frequency （OR： 1.62, 95%CI： 1.09-4.63,P= 0.042） and quality of life （OR： 2.04, 95%CI： 1.26-6.92,P= 0.038） relative to *** In patients with NSTE-ACS, both PCI and CABG provide great improvement in disease-specific health status at six months, with that of CABG being more prominent in terms of angina frequency and quality of life.

关键词： Non-ST elevation acute coronary syndrome Quality of life Therapeutic strategy

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Effects of Cyclic Electron Flow Inhibitor(Antimycin A)on Photosystem Photoinhibition of Sweet Pepper Leaves upon Exposure to Chilling Stress Under Low Irradiance

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Agricultural Sciences in China 2006年第7期5卷 506-511页

作者： li Xin-guo ZHAO Jin-ping XU ping-li meng Jing-jing HE Qi-wei High-Tech Center Shandong Academy of Agricultural Sciences Ji＇nan 250100 P.R.China

In chloroplast, there were two pathways involved in the cyclic electron flow around photosystem 1 （PS 1）. One was the NADH dehydrogenase （NDH）-dependent flow and the other was the ferredoxin quinone reductase-dependent flow. It was proposed that the NDH-dependent cyclic electron flow around PSI was related to the xanthophyll cycle-dependent non-photochemical quenching （NPQ） at chilling temperature under low irradiance （CL）. The function of the chloroplastic cyclic electron flow around PS 1 was examined by comparing sweet pepper （Capsicum annuum L.） control with its antimycin A （AA）-fed leaves upon exposure to CL stress. During CL stress, the maximum photochemical efficiency of PS2 （Fv/Fm） decreased markedly in both controls and AA-fed leaves, and P700＋ was also lower in AA-fed leaves than in controls. These results implied that cyclic electron flow around PS 1 functioned to protect the photosynthetic apparatus from CL stress. Under such stress, NPQ and PS2-driven electron transport rate were different between AA-fed leaves and controls. The lower NPQ in AA-fed leaves might be related to an inefficient proton gradient across thylakoid membranes （ApH） because of inhibiting cyclic electron flow around PS 1 under CL stress.

关键词： sweet pepper chilling stress cyclic electron flow non-photochemical quenching the xanthophyll cycle

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The Unconditional Stability for the Hyperneutral Type Constant linear Control System with Delays (I)

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Wuhan University Journal of Natural Sciences 2001年第4期6卷 759-763页

作者： li Ye-ping meng Pei-yuan Zhou Guo-peng Department of Mathematics Xianning Teacher's College Xianning 437005 Hubei China

By means of the frequency domain method and the inequality analysis, we discuss the unconditional stability problem for the hyperneutral type constant linear control system with delays, and obtain some precise suffici... 详细信息

关键词： delays hyperneutral type unconditional stability

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Gastrointestinal discomforts and dietary intake in Chinese urban elders:A cross-sectional study in eight cities of China

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World Journal of Gastroenterology 2019年第45期25卷 6681-6692页

作者： Ai Zhao Mei-Chen Wang Ignatius Man-Yau Szeto li-ping meng Yan Wang Ting li Yu-Mei Zhang School of Public Health Peking UniversityBeijing 100191China Yili Innovation Center Inner Mongolia Yili Industrial Group Co.Ltd.Hohhot 010110Inner Mongolia Autonomous RegionChina Inner Mongolia Dairy Technology Research Institute Co. Ltd.Hohhot 010110Inner Mongolia Autonomous RegionChina

BACKGROUND Gastrointestinal(GI)discomforts are common in the elderly population;however,whether such discomforts are associated with dietary intake has not been *** To evaluate GI discomforts in Chinese urban elders and the associated *** The gastrointestinal symptom rating scale(GSRS)was used to identify GI discomforts in 688 elders from eight cities of *** semi-quantitative food frequency questionnaire and one time of 24 h dietary recall were used to access the food intake,identify dietary pattern,and calculate the nutrients *** About 83%of studied elders experienced at least one of GI discomforts in the past 6 mo;dyspepsia was the most commonly reported(66.7%),followed by reflux(44.8%),abdominal pain(35.9%),constipation(35.8%),and diarrhea(34.7%).Female gender,lower education level,and lower family income were associated with a higher GSRS *** who were diagnosed with a GI-related disease had a higher score of constipation,but a lower score of *** diseases were positively associated with certain GI *** dietary patterns were identified by the method of principal component analysis,which were characterized as high intake of salt and tea;more frequent intake of tubers,fruits,aquatic products,and soybeans;and high intake of cereal,vegetables,and meat,***,no associations between dietary patterns and GSRS score were *** elders with a higher GSRS score had significantly lower intake of bean *** elders whose GSRS score was≥21 and 18-20 decreased their bean production intake by 7.2(0.3,14.3)g/d and 14.3(1.2,27.3)g/d,respectively,compared with those who had a GSRS score≤*** were no differences in other food categories,calories,or nutrients intake among elders with different GSRS *** GI discomforts are common in Chinese urban *** discomforts might be associated with the choice of food.

关键词： Gastrointestinal discomforts Nutrition Dietary intake Nutrients Elderly population

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Reversal of Wolff-Parkinson-White Syndrome induced dilated cardiomyopathy via resynchronization and subsequent accessory pathway ablation

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Journal of Geriatric Cardiology 2017年第10期14卷 654-656页

作者： Long-Bin liU Chang-Zuan ZHOU Hui liN li-ping meng Chang BIAN Yu ZHANG Hang-Yuan GUO Department of Cardiology Shaoxing People's Hospital Shaoxing Hospital of Zhejiang University Shaoxing China Department of Cardiology Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine Wenzhou China The Second Affiliated Hospital of Zhejiang University Hangzhou China

Recurrent or incessant tachycardia is frequently found in symptomatic Wolff-Parkinson-White （WPW） syndrome, leading to ventricular dysfunction, dilated cardiomyopathy （DCM） and heart failure in infants and children.[1] Recently, Winter, et al.[2] report that WPW syndrome could provoke many kinds of cardiac dysfunction, leading to remodeling and progressive ventricular dilatation through pre-excita- tion-related dyssynchrony, even without arrhythmia.

关键词： Catheter ablation Cardiomyopathy Cardiac resynchronization therapy

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Effect of interfacial reactions on solid erosion of Al_(18) B_4O_(33) whisker-reinforced AC4C Al alloy matrix composites

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中国有色金属学会会刊：英文版 2000年第3期10卷 332-336页

作者： TU Jiang ping(涂江平) 1, 3 , ZHU li ping(朱丽萍) 2, meng liang(孟亮) 1, liU Mao sen(刘茂森) 1, M. Matsumura 3 1. Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P.R.China 2. Zhejiang Technology Sc Zhejiang Univ Dept Mat Sci & Engn Hangzhou 310027 Peoples R China Zhejiang Technol Sch Bldg Mat Hangzhou 310014 Peoples R China Hiroshima Univ Dept Chem Engn Higashihiroshima 7398527 Japan

Solid erosion of as cast and treated 19.5%(volume fraction) Al 18 B 4O 33 whisker/AC4C Al composites was investigated at room temperature under steady state conditions. The results indicated that the interfacial reaction between the whisker and matrix alloy have an effect on the erosion characteristics of the composites. The erosion resistance of the composites with a strongly bonded whisker matrix interface and the higher whisker strength resulted from suitable reaction treatment can be improved at high impact angles and is the same as the as cast composites at low angle. For the composites after excessive reaction treatment, the weak and brittle interface fractures easily at small strains, and the whiskers with relative low strength and low hardness at the specimen surface can not effectively resist the microcutting or microploughing action, thus the composites exhibit reduced erosion resistance.

关键词： interfacial reactions solid erosion metal matrix composites

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Crotalaria ferruginea extract attenuates lipopolysaccharide-induced acute lung injury in mice by inhibiting MAPK/NF-κB signaling pathways

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Asian Pacific Journal of Tropical Biomedicine 2021年第11期11卷 481-490页

作者： Wei Pan li-ping meng Jie Su Zheng-Biao Yang Wei-Feng Du Zhi-Wei Xu Yun-Xiang Chen Sheng Zhang Feng Xie Cong Xu Hong-Zhong Yang Wei-Hong Ge Department of Pharmacology College of Pharmaceutical SciencesZhejiang Chinese Medical UniversityHangzhou 310053China State Key Laboratory of Safety Evaluation for New Drugs Hangzhou Medical CollegeHangzhou 310013China Department of Surgical Nursing The First Affiliated Hospital of Hainan Medical UniversityHaikou 570102China

Objective:To evaluate the anti-inflammatory activity of Crotalaria ferruginea extract(CFE)and its ***:An intratracheal lipopolysaccharide(LPS)instillationinduced acute lung injury(Ali)model was used to study the antiinflammatory activity of CFE in *** LPS-induced shock model was used to analyze the effect of CFE on ***-stimulated RAW264.7 cell model was used to investigate the anti-inflammatory activity of CFE in vitro and the effects on mitogen-activated protein kinase(MAPK)or nuclear factor-κB(NF-κB)signaling ***:CFE administration decreased the number of inflammatory cells,reduced the levels of tumor necrosis factor-α(TNF-α),monocyte chemotactic protein-1(MCP-1),interleukin-6(IL-6),and interferon-γ,and diminished protein content in the bronchoalveolar lavage fluid of *** also reduced lung wet-to-dry weight ratio,myeloperoxidase,and lung tissue pathological *** preadministration improved the survival rate of mice challenged with a lethal dose of *** reduced LPS-activated RAW264.7 cells to produce nitric oxide,TNF-α,MCP-1,and ***,CFE inhibited nuclear translocation and phosphorylation of NF-κB P65,extracellular signal-regulated kinase,c-Jun N-terminal kinases,and P38 ***:CFE exhibits potent anti-inflammatory activity in LPS-induced Ali mice,LPS-shock mice,and RAW264.7 cells,and its mechanism may be associated with the inhibition of NF-κB and MAPK signaling *** ferruginea may be a useful therapeutic drug for the treatment of Ali and other respiratory inflammations.

关键词： Crotalaria ferruginea Acute lung injury Cytokine lipopolysaccharide Nuclear factor-κB Mitogen-activated protein kinase

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Research on the Working Mechanism and Virtual Design for Cleaning Element in Brush Shape of the Sugarcane Harvester

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厦门大学学报（自然科学版） 2002年第S1期41卷 137-138页

作者： li Shang-ping, meng Yan-mei, MA Fang-lan, TAN Hong-hao, CHEN Wei-xu (College of Mechanical Engineering, Guangxi University, Nanning 530004 , China)

The cleaning element is the key part to the small w ho le-stall sugarcane harvester, which is suitable to the highland. And it is the bottleneck of the design of the small sugarcane harvester. The working mechanism of centrifugal cleaning method of the cleaning element in brush shape is based on the high speed rotating cleaning element that push, scrub, and strike the sta lk to separate the leaves from the sugarcane. The paper elaborated the worki ng mechanism of cleaning element in brush shape of the sugarcane harvester, and analyzed the state of cleaning procedure and the reacting force that the cleanin g element was subjected. Combined with the earlier stage experiments and researc hes, it was found out that the factors, which affect the cleaning efficiency and fatigue life of cleaning element, were quite many, and the factors were complex and random. So it was difficult to analyze and design cleaning element in theor y. Moreover, if the design parameters were got from experiment it would be time consuming, laborious, and costly. The method of numerical value simulation ortho gonal experiment is used to analyze the reacting force by means of establishing finite element analysis model for cleaning element on ANSYS. According to orthog onal experiment principle, the different parameter groups were made to do finite element calculation. And then orthogonal experiment analysis and regression ana lysis were made to find out the effect on the calculated result that was caused by the changes of different parameter groups, and get optimal design parameters of cleaning element. In conclusion, this virtual design method is a quick and ef ficient way in innovative mechanical product design. This method economizes mate rial, labor, and time, and then it is the right way of high efficiency and speed to reduce the development period, and increase the quality of product and the r atio of successful development at once.

关键词： cleaning element finite element analysis orthog onal experiment regression analysis

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