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期刊论文 41

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不确定威胁 1

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Right coronary occlusion following transcatheter aortic valve implantation: two case reports

null

《医学前沿(英文)》 2016年 第10卷 第3期   页码 351-355 doi: 10.1007/s11684-016-0465-8

摘要:

This paper discusses two male patients with severe aortic stenosis, whose right coronary arteries (RCA) were completely occluded during transcatheter aortic valve implantation (TAVI), leading to fatal hemodynamic disorder. Occlusions of RCA complicated by TAVI are rare. In addition, emergency cardiopulmonary bypass (CPB) played a critical role in rescuing our second patient. Both patients were admitted for “severe aortic stenosis,” and TAVIs were performed. The first patient’s blood pressure immediately dropped to 70/40 mmHg after the balloon expansion and did not increase much after the administration of aramine or fluid therapy. He did not receive emergency surgery and died after 1.5 h of resuscitation. The second patient’s blood pressure fluctuated greatly for several minutes after the valve implantation, ranging from 170/100 mmHg to 60/40 mmHg. Angiography revealed a total occlusion of RCA. Thoracic surgery with CPB was performed, and the patient survived.

关键词: aortic stenosis     transcatheter aortic valve implantation     right coronary occlusion     cardiac group    

Optimal portfolio design of energy storage devices with financial and physical right market

《能源前沿(英文)》 2022年 第16卷 第1期   页码 95-104 doi: 10.1007/s11708-021-0788-2

摘要: With the continuous development of the spot market, in the multi-stage power market environment with the day-ahead market and right market, the study associated with the portfolio of energy storage devices requires that attention should be paid to transmission congestion and power congestion. To maximize the profit of energy storage and avoid the imbalance of power supply and consumption and the risk of node price fluctuation caused by transmission congestion, this paper presents a portfolio strategy of energy storage devices with financial/physical contracts. First, the concepts of financial/physical transmission rights and financial/physical storage rights are proposed. Then, the portfolio models of financial contract and physical contract are established with the conditional value-at-risk to measure the risks. Finally, the portfolio models are verified through the test data of the Pennsylvania-New Jersey-Maryland (PJM) electric power spot market, and the comparison between the risk aversion of portfolios based on financial/physical contract with the portfolio of the market without rights. The simulation results show that the portfolio models proposed in this paper can effectively avoid the risk of market price fluctuations.

关键词: portfolio     node price fluctuation     transmission right     energy storage right     risk aversion    

Contemporary coronary artery bypass grafting

null

《医学前沿(英文)》 2014年 第8卷 第4期   页码 395-398 doi: 10.1007/s11684-014-0374-7

摘要:

Current evidence clearly demonstrates that coronary artery bypass grafting (CABG) remains the “gold standard” treatment for most patients with multivessel and left main stem disease. This article summarizes the relevant evidence basis demonstrating that CABG, in comparison to stenting, reduces mortality and subsequent myocardial infarction and the need for repeat revascularization. The article also describes the evidence basis to support the use of more arterial grafts during CABG and the current role of off-pump CABG.

关键词: coronary artery bypass grafting (CABG)     coronary artery disease     left main     arterial grafts     internal mammary artery     off-pump CABG    

Do right PLS and do PLS right: A critical review of the application of PLS-SEM in construction management

Ningshuang ZENG, Yan LIU, Pan GONG, Marcel HERTOGH, Markus KÖNIG

《工程管理前沿(英文)》 2021年 第8卷 第3期   页码 356-369 doi: 10.1007/s42524-021-0153-5

摘要: Partial least squares structural equation modeling (PLS-SEM) is a modern multivariate analysis technique with a demonstrated ability to estimate theoretically established cause-effect relationship models. This technique has been increasingly adopted in construction management research over the last two decades. Accordingly, a critical review of studies adopting PLS-SEM appears to be a timely and valuable endeavor. This paper offers a critical review of 139 articles that applied PLS-SEM from 2002 to 2019. Results show that the misuse of PLS-SEM can be avoided. Critical issues related to the application of PLS-SEM, research design, model development, and model evaluation are discussed in detail. This paper is the first to highlight the use and misuse of PLS-SEM in the construction management area and provides recommendations to facilitate the future application of PLS-SEM in this field.

关键词: PLS     SEM     construction management     literature review     misuse    

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational

《医学前沿(英文)》 2022年 第16卷 第4期   页码 651-658 doi: 10.1007/s11684-021-0859-0

摘要: To present the clinical characteristics and the misdiagnosis rate of acute coronary syndrome manifested primarily as throat discomfort, we conducted a multicentric and retrospective study in the cardiology and otorhinolaryngology departments. Records of patients with primary complaint of throat discomfort, absence of chest pain at onset, and an ultimate diagnosis of acute coronary syndrome, as well as patients with pharyngitis (as controls) were collected from May 2015 to April 2016. The patients’ main manifestations were compared. Logistic regression results showed that chest tightness, dyspnea, perspiring, and exertional throat symptoms were significantly associated with acute coronary syndrome, with odds ratios of 8.3 (95% CI 2.2−31.5), 10.9 (95% CI 1.8−66.9), 25.4 (95% CI 3.6−179.9), and 81.2 (95% CI 13.0−506.7). A total of 25 (56.82%) out of 44 acute coronary syndrome patients, who were first admitted to the otorhinolaryngology department, were misdiagnosed, with a 12% (3/25) mortality rate. Throat discomfort can be the principal manifestation of acute coronary syndrome. Such patients exhibit high misdiagnosis and mortality rates. Exertional throat symptoms, chest tightness, perspiring, and dyspnea were important indicators of acute coronary syndrome in patients whose main complaint was throat discomfort. The awareness of this condition will result in prompt diagnosis and reduce morbidity and mortality.

关键词: acute coronary syndrome (ACS)     throat discomfort (TD)     throat pain     cardiology departments     non-cardiologic physicians    

The early percutaneous coronary intervention in elderly patients with acute coronary syndrome

HUANG Xiong, CAO Xuebin, ZHANG Gang

《医学前沿(英文)》 2008年 第2卷 第1期   页码 15-18 doi: 10.1007/s11684-008-0004-3

摘要: It is challenging to undo early percutaneous intervention (PCI) in the elderly with acute coronary syndrome (ACS). Fifteen patients older than 65 years with ACS within 24 hours of the event were admitted from April 4, 2004 to December 12, 2005. All the patients had early percutaneous coronary intervention and were followed up for 6–12 months by telephone or in the out-patient department. Nine of the 15 patients exhibited acute myocardial infarction (AMI). Six exhibited unstable angina (UA). All the patients had early PCI. The average door-to-balloon time was 78 minutes (40–110 minutes). The average PCI time was 99 minutes (68–120 minutes). Nineteen of 36 lesions in the fifteen angioplasty patients were treated and 20 stents were implanted in total. All the procedures were considered successful. Neither deaths nor recurrent angina occurred in the 6–12 months of follow-up. It was shown that early PCI might be an effective and safe method to treat elderly patients with ACS.

关键词: door-to-balloon     percutaneous intervention     coronary syndrome     angioplasty     successful    

网络主权保障问题研究

邹鹏,何骏,邹红霞,刘韵洁

《中国工程科学》 2016年 第18卷 第6期   页码 8-12 doi: 10.15302/J-SSCAE-2016.06.002

摘要:

随着网络空间承载国家公共和私人利益的日益广泛,网络主权及其保障问题已引起了国际社会的高度重视。本文结合当前我国网络主权的现状,从网络独立权、网络平等权、网络自卫权和网络管辖权的角度分析了我国网络主权保障目前应当关注的主要问题,并给出了相应的对策建议,力求推动网络主权观的确立,增强我国在国际网络空间治理规则制定方面的话语权,提升维护国家网络空间安全利益的能力。

关键词: 网络主权     网络独立权     网络平等权     网络自卫权     网络管辖权     网络边防    

Drug-coated balloon-only strategy for percutaneous coronary intervention of left main coronary artery

《医学前沿(英文)》 2023年 第17卷 第1期   页码 75-84 doi: 10.1007/s11684-022-0950-1

摘要: This retrospective single-center registry study included all consecutive patients who underwent percutaneous coronary intervention (PCI) for a de novo left main coronary artery lesion using drug coated-balloon (DCB)-only strategy between August 2011 and December 2018. To best of our knowledge, no previous studies of DCB-only strategy of treating de novo left main coronary artery disease, exist. The primary endpoint was major adverse cardiovascular events (MACEs) including cardiac death, non-fatal myocardial infarction, and target lesion revascularization (TLR). The cohort was divided into two groups depending on weather the lesion preparation was done according to the international consensus group guidelines. Sixty-six patients (mean age 75±8.6, 72% male), 52% of whom had acute coronary syndrome, underwent left main PCI with the DCB-only strategy. No procedural mortality and no acute closures of the treated left main occurred. At 12 months, MACE and TLR occurred in 24% and 6% of the whole cohort, respectively. If the lesion preparation was done according to the guidelines, the MACE and TLR rates were 21.2% and 1.9%. Left main PCI with the DCB only-strategy is safe leading to acceptable MACE and low TLR rates at one year, if the lesion preparation is done according to the guidelines.

关键词: drug-coated balloon     left main     high bleeding risk     predilatation     calcifield lesion     percutaneous coronary intervention    

Coronary leukocyte activation in relation to progression of coronary artery disease

null

《医学前沿(英文)》 2016年 第10卷 第1期   页码 85-90 doi: 10.1007/s11684-016-0435-1

摘要:

Leukocyte activation has been linked to atherogenesis, but there is little in vivo evidence for its role in the progression of atherosclerosis. We evaluated the predictive value for progression of coronary artery disease (CAD) of leukocyte activation markers in the coronary circulation. Monocyte and neutrophil CD11b, neutrophil CD66b expression and intracellular neutrophil myeloperoxidase (MPO) in the coronary arteries were determined by flow cytometry in patients undergoing coronary angiography. The primary outcome included fatal and nonfatal myocardial infarction or arterial vascular intervention due to unstable angina pectoris. In total 99 subjects who were included, 70 had CAD at inclusion (26 patients had single-vessel disease, 18 patients had two-vessel disease and 26 patients had three-vessel disease). The median follow-up duration was 2242 days (interquartile range: 2142–2358). During follow-up, 13 patients (13%) developed progression of CAD. Monocyte CD11b, neutrophil CD11b and CD66b expression and intracellular MPO measured in blood obtained from the coronary arteries were not associated with the progression of CAD. These data indicate that coronary monocyte CD11b, neutrophil CD11b and CD66b expression and intracellular MPO do not predict the risk of progression of CAD.

关键词: coronary artery disease     inflammation     integrin     myeloperoxidase     leukocyte activation    

Translational research on novel drug-eluting stents in percutaneous coronary intervention

Yaling Han, Kai Xu, Chenghui Yan

《医学前沿(英文)》 2011年 第5卷 第4期   页码 395-400 doi: 10.1007/s11684-011-0167-1

摘要: Although first-generation drug-eluting stents (DES) have markedly reduced restenosis, complications of late and very late in-stent thrombosis have emerged as prime limitations to this technology. The development of new DES is a key process to prevent these complications. Translational research plays a very important role in experiments which determine the safety and efficacy of DES before human clinical trials. The present review focuses on translational research of novel DES, including drug discovery, creation of preclinical research models, planning and conducting of first-in-man studies, and developing next-generation DES systems.

关键词: translational research     drug-eluting stents     percutaneous coronary intervention    

Erratum to: Industrial water treatment and industrial marine outfalls: Achieving the right balance

Adrian W. K. Law, Chunyan Tang

《化学科学与工程前沿(英文)》 2017年 第11卷 第2期   页码 290-290 doi: 10.1007/s11705-017-1639-x

深圳城市供水系统产权结构重组模式及评价

肖文,欧阳芳锐,王先甲

《中国工程科学》 2004年 第6卷 第7期   页码 48-52

摘要:

提出了城市供水系统产权结构重组的两种基本模式,运用制度经济学和管理学理论,提出产权结构模式评价的指标与方法,分析了这两种产权结构模式的特性和在这两种模式下不同利益主体的行为与利益关系的变化特点及优缺点,并提出了缓解劣势的手段与方法。

关键词: 城市供水     产权结构     产权重组     产权模式评价    

Evaluation of the effect of myocardial perfusion after percutaneous coronary intervention in coronary

WANG Hong, HUANG Lan, JIN Jun, SONG Yaoming, GENG Zhaohua, YU Xuejun, QIN Jun, ZHAO Gang, GAO Yunhua, LIU Zheng

《医学前沿(英文)》 2007年 第1卷 第1期   页码 62-67 doi: 10.1007/s11684-007-0013-7

摘要: Detection of abnormal myocardial perfusion is crucial to the prognosis of patients with coronary artery disease (CAD) after they have undergone percutaneous coronary intervention (PCI). The objective of this study is to evaluate the effect of myocardial perfusion by three different methods intra-coronary myocardial contrast echocardiography (ICMCE), corrected thrombolysis in myocardial infarction frame count (CTFC), and coronary blood flow velocity (BFV) and to determine the value of these different methods in the evaluation of the effect of myocardial perfusion post-PCI. For the study sixty-eight patients were divided into four groups based on selective coronary angiography results: group A (normal coronary artery), group B (75% 95% coronary artery stenosis), group C (coronary artery stenosis >95%) and group D (acute total coronary occlusion). The effect of myocardial reperfusion was evaluated using the above mentioned three methods 15 min after PCI. IC-MCE was also performed before PCI in group D. The quantitative parameters of MCE involved: contrast peak intensity, time to peak intensity and area under the curve, representing myocardial blood volume, reperfusion velocity and myocardial blood flow, respectively. No difference was found in CTFC between the coronary artery stenosis group and the normal group. BFV was slower in group D than in group A (<0.05). The myocardial blood volume and the myocardial blood flow of the IC-MCE quantitative parameters were markedly lower in group C compared with those in group A (<0.05), and there were significant differences in the three MCE parameters between group D and group A (<0.05). For those patients with acute or total occlusion, the levels of myocardial perfusion before and after PCI were similar, as determined by IC-MCE and visually analyzed from 61 segments (<0.05). Quantitative IC-MCE evaluation of myocardial reperfusion is more accurate than with the other two methods. Moreover, with qualitative IC-MCE the level of myocardial reperfusion can be viewed directly and rapidly. Thus, the IC-MCE method is of great value to coronary artery disease (CAD) patients undergoing PCI, especially for those with acute myocardial infarction (AMI).

SinoSCORE: a logistically derived additive prediction model for post-coronary artery bypass grafting

null

《医学前沿(英文)》 2013年 第7卷 第4期   页码 477-485 doi: 10.1007/s11684-013-0284-0

摘要:

This study aims to construct a logistically derived additive score for predicting in-hospital mortality risk in Chinese patients undergoing coronary artery bypass surgery (CABG). Data from 9839 consecutive CABG patients in 43 Chinese centers were collected between 2007 and 2008 from the Chinese Coronary Artery Bypass Grafting Registry. This database was randomly divided into developmental and validation subsets (9:1). The data in the developmental dataset were used to develop the model using logistic regression. Calibration and discrimination characteristics were assessed using the validation dataset. Thresholds were defined for each model to distinguish different risk groups. After excluding 275 patients with incomplete information, the overall mortality rate of the remaining 9564 patients was 2.5%. The SinoSCORE model was constructed based on 11 variables: age, preoperative NYHA stage III or IV, chronic renal failure, extracardiac arteriopathy, chronic obstructive pulmonary disease, preoperative atrial fibrillation or flutter (within 2βweeks), left ventricular ejection fraction, other elective surgery, combined valve procedures, preoperative critical state, and BMI. In the developmental dataset, calibration using a Hosmer-Lemeshow (HL) test was at =β0.44 and discrimination based on the area under the receiver operating characteristic curve (ROC) was 0.80. In the validation dataset, the HL test was at =β0.34 and the area under the ROC (AUC) was 0.78. A logistically derived additive model for predicting in-hospital mortality among Chinese patients undergoing CABG was developed based on the most up-to-date multi-center data from China.

关键词: coronary artery bypass grafting     risk stratification     in-hospital mortality    

Sudden death due to arrhythmogenic right ventricular cardiomyopathy: Two case reports

CHEN Xinshan, ZHANG Yigu, RAO Guangxun, HUANG Guangzhao

《医学前沿(英文)》 2007年 第1卷 第3期   页码 338-342 doi: 10.1007/s11684-007-0065-8

摘要: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a kind of primary myocardial disease characterized by the regional or global replacement of right ventricular myocardium by fatty and fibrolipomatous tissues. The ARVC, usually presenting with different clinical manifestations and pathological changes, were mainly seen in young men and is one of the main causes of sudden death in the young. Here two autopsied cases of Chinese men aged 30 and 23 years old who appeared healthy but died suddenly while at work are reported respectively. One of the victims had extensive and severe pathological changes in his heart involving the left ventricular wall as well as the ventricular septum and the right atrium. Not only was there a global fatty and fibrolipomatous tissue replacement of the right ventricular myocardia, but also mild sarcoplasmic coagulation in the myocardium and focal lymphocytic infiltration in the myocardial interstitium of the right ventricular wall. In addition, slight atherosclerosis of the coronary artery and intimal thickening of the sino-atrial node were observed. It is believed that there are no marked differences in the pathological changes of ARVC between Chinese patients and patients from western countries. The etiology and pathogenesis of ARVC could not be explained by a single cause or factor and they are probably related to various congenital and acquired causes or factors.

关键词: sarcoplasmic coagulation     acquired     ventricular myocardium     sino-atrial     autopsied    

标题 作者 时间 类型 操作

Right coronary occlusion following transcatheter aortic valve implantation: two case reports

null

期刊论文

Optimal portfolio design of energy storage devices with financial and physical right market

期刊论文

Contemporary coronary artery bypass grafting

null

期刊论文

Do right PLS and do PLS right: A critical review of the application of PLS-SEM in construction management

Ningshuang ZENG, Yan LIU, Pan GONG, Marcel HERTOGH, Markus KÖNIG

期刊论文

Atypical manifestations of acute coronary syndrome — throat discomfort: a multi-center observational

期刊论文

The early percutaneous coronary intervention in elderly patients with acute coronary syndrome

HUANG Xiong, CAO Xuebin, ZHANG Gang

期刊论文

网络主权保障问题研究

邹鹏,何骏,邹红霞,刘韵洁

期刊论文

Drug-coated balloon-only strategy for percutaneous coronary intervention of left main coronary artery

期刊论文

Coronary leukocyte activation in relation to progression of coronary artery disease

null

期刊论文

Translational research on novel drug-eluting stents in percutaneous coronary intervention

Yaling Han, Kai Xu, Chenghui Yan

期刊论文

Erratum to: Industrial water treatment and industrial marine outfalls: Achieving the right balance

Adrian W. K. Law, Chunyan Tang

期刊论文

深圳城市供水系统产权结构重组模式及评价

肖文,欧阳芳锐,王先甲

期刊论文

Evaluation of the effect of myocardial perfusion after percutaneous coronary intervention in coronary

WANG Hong, HUANG Lan, JIN Jun, SONG Yaoming, GENG Zhaohua, YU Xuejun, QIN Jun, ZHAO Gang, GAO Yunhua, LIU Zheng

期刊论文

SinoSCORE: a logistically derived additive prediction model for post-coronary artery bypass grafting

null

期刊论文

Sudden death due to arrhythmogenic right ventricular cardiomyopathy: Two case reports

CHEN Xinshan, ZHANG Yigu, RAO Guangxun, HUANG Guangzhao

期刊论文