检索范围:
排序: 展示方式:
Incremental value of contrast echocardiography in the diagnosis of left ventricular noncompaction
null
《医学前沿(英文)》 2016年 第10卷 第4期 页码 499-506 doi: 10.1007/s11684-016-0473-8
Contrast echocardiography with left ventricular opacification (LVO) improves the definition of endocardium in two-dimensional echocardiography (2DE). This study was aimed to determine whether LVO offered added diagnostic value in noncompaction of left ventricular myocardium (NCVM). A total of 85 patients (40±20 years, 54 males) with suspected NCVM were subjected to transthoracic 2DE and LVO, and 40 healthy volunteers were examined with 2DE and assigned as control subjects. The location of NCVM, the thickness ratio of noncompacted to compacted myocardium (NCR), and the cavity size and ejection fraction of LV were quantified. Results revealed that NCVM was mainly located in the LV medium (53.2%), apical (46.2%) segments, and lateral wall (39.8%). The NCR obtained through LVO was greater than that detected through 2DE (4.2±1.3 vs. 3.3±1.2, P<0.001), and higher inter-correlations and less intra- and inter-observer variabilities were determined in the former than in the latter. The NCVM detection rates were also increased from 63.5% via 2DE to 83.5% via LVO and 89.4% via 2DE combined with LVO (2DE+ LVO) (P = 0.0004). The LV cavity size was greater and the LV ejection fraction (LVEF) was lower in the NCVM patients than in the control group (P<0.01). In the NCVM group, the LV cavity size was higher and the LVEF was lower in LVO than in 2DE (P<0.01). In conclusion, contrast echocardiography contributes significant sensitivity and reproducibility to routine transthoracic echocardiography in NCVM diagnosis. Therefore, this technique should be clinically performed to diagnose suspected NCVM.
关键词: echocardiography left ventricular noncompaction cardiomyopathy echo contrast media
《医学前沿(英文)》 2021年 第15卷 第3期 页码 416-437 doi: 10.1007/s11684-021-0852-7
关键词: surgical aortic valve replacement trans-catheter aortic valve implantation left ventricular hypertrophy and fibrosis myocardial force-velocity relationship His-Purkinje pacing renin-angiotensin system inhibitors coronary access impairment
Wei HAN MM, Ming-Xing XIE MD, Qing LV MD, Xin-Fang WANG MD, Li ZHANG MM,
《医学前沿(英文)》 2010年 第4卷 第1期 页码 71-76 doi: 10.1007/s11684-010-0006-9
关键词: echocardiography twist two-dimensional strain imaging coronary artery disease
Hui Wang, Yang Zhang, Zhujun Shen, Ligang Fang, Zhenyu Liu, Shuyang Zhang
《医学前沿(英文)》 2021年 第15卷 第1期 页码 70-78 doi: 10.1007/s11684-020-0749-x
关键词: myocardial infarction percutaneous coronary intervention diabetes mellitus fasting glucose heart failure
Houjuan Zuo, Rui Li, Fei Ma, Jiangang Jiang, Kun Miao, Haojie Li, Eike Nagel, Marijana Tadic, Hong Wang, Dao Wen Wang
《医学前沿(英文)》 2020年 第14卷 第3期 页码 284-292 doi: 10.1007/s11684-019-0713-9
关键词: fulminant myocarditis acute myocarditis 2D speckle tracking echocardiography left ventricular function global longitudinal strain
《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
关键词: drug-coated balloon left main high bleeding risk predilatation calcifield lesion percutaneous coronary intervention
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
关键词: sarcoplasmic coagulation acquired ventricular myocardium sino-atrial autopsied
Zhiming ZHAO, Xihua WANG
《结构与土木工程前沿(英文)》 2013年 第7卷 第3期 页码 332-340 doi: 10.1007/s11709-013-0206-x
关键词: slope stability strength properties model test numerical analysis
null
《医学前沿(英文)》 2014年 第8卷 第2期 页码 259-263 doi: 10.1007/s11684-014-0321-7
Although significant breakthroughs have been achieved in tuberculosis management, we still encounter numerous difficulties in diagnosis and treatment of the disease. Additionally, a new challenge, multidrug-resistant tuberculosis (MDR-TB) with unspecific clinical presentation, often results in delayed diagnosis. In this paper, we reported a case of disseminated tuberculosis with rare presentation of ventricular fibrillation, which proved resistant to both isoniazid and rifampicin. A review of literature showed that ventricular fibrillation or tachycardia in tuberculosis patients with pericarditis or myocarditis has been sporadically reported in the past, but none has been conducted involving patients with MDR-TB infections.
null
《医学前沿(英文)》 2017年 第11卷 第3期 页码 445-448 doi: 10.1007/s11684-017-0520-0
Establishing a long-term vascular access in patients exhibiting vascular access exhaustion is challenging. In this study, we reported a case of a direct catheterization in the superior vena cava of a hemodialysis patient with vascular access exhaustion and original dysfunctional catheter inserted via the left internal jugular vein. The direct catheterization was performed with cuffed tunnel catheter (CUFF) and guided by digital subtraction angiography (DSA) and multidetector computed tomography venography (MDCTV). The DSA and MDCTV results revealed an occlusion in the right innominate vein and thromboses in the left innominate, right internal jugular, subclavian, and femoral veins. The distal end of the superior vena cava was localized clearly by the original CUFF under DSA. Directed at the distal end of the superior vena cava, a 0.5-cm secondary puncture was introduced below the lateral head of the sternocleidomastoid muscle via the right neck area. This study is one of the few reports regarding direct catheterization of CUFF via the superior vena cava of a patient with vascular access exhaustion and CUFF dysfunction on the left internal jugular vein. We believe that our study can provide a new alternative for inserting central venous catheter for such patient.
关键词: superior vena cava intervention vascular access exhaustion catheterization tunneled cuffed hemodialysis catheter
Analytical solution for SH wave propagating through a graded plate of metamaterial
Jinfeng ZHAO, Yongdong PAN, Zheng ZHONG
《机械工程前沿(英文)》 2011年 第6卷 第3期 页码 301-307 doi: 10.1007/s11465-011-0238-7
A physical model for the shear horizontal (SH) wave propagating from left-handed material (LHM) through a graded or transition layer to right-handed material (RHM) has been proposed in this paper. After the comparison of the basic wave equations of the electromagnetic, longitudinal, and SH waves, it is found that they take similar differential form. The analytical solutions have been found for power law, hyperbolic, and polynomial profiles. Numerical waveforms of the amplitude and phase of the displacement are obtained for the corresponding profiles. It is found that the waveforms are symmetric for the power law and hyperbolic profiles, and that the waveform for the polynomial profile is shifted and non-symmetric. The shift along with the anti-symmetric profile may provide a way to monitor the wave behavior of the metamaterials.
关键词: left-handed material (LHM) metamaterial shear horizontal (SH) wave
基于一种全新的优化多变量非等距模型对中国汉族成人左心室多普勒超声心动图测值生理性变异的校正方法 Article
姚桂华, 陈湘云, 杨文静, 张青, 刘静, 梁欢, 孙慧, 许耀, 王丽, 徐金锋, 张澄, 孙丰荣, 张梅, 曾雪迎, 张运
《工程(英文)》 2022年 第16卷 第9期 页码 115-122 doi: 10.1016/j.eng.2021.05.007
多数左心室(LV)多普勒超声心动图参数测值随年龄和性别显著变化,因此有必要对其生理性差异进行校正。本研究旨在验证:不同的多普勒参数测值与生物学特征变量间呈异速非线性相关,且其校正常数与校正指数各不同。共测量了1224名健康成人的23个LV多普勒参数。随机选择70%数据(A组)建立优化多变量非线性模型(OMAM),在30%数据(B组)和183名超重人群数据(C组)中验证OMAM的可靠性,并与基于体表面积(BSA)的单变量等距模型(SVIM)进行比较。结果显示,校正前,23个LV多普勒参数均与一个或多个生物学特征变量显著相关,B组中47.8% (11/23)的参数存在性别间差异,经OMAM校正后,81.8% (9/11)的参数消除了性别间差异。OMAM对B组和C组数据的校正成功率分别为100% (23/23)和82.6% (19/23),建立了独立于生物学特征变量的多普勒参数的OMAM参考值,而基于BSA的SVIM校正成功率为零。不同的LV多普勒参数与一个或多个生物学特征变量呈异速非线性相关;本研究建立的OMAM成功校正了因生物学特征变量差异对健康和超重人群多普勒测值的生理性影响,其校正效果显著优于传统的SVIM。然而,OMAM针对其他种族、肥胖和疾病状态人群的适用性仍需进一步探究
《医学前沿(英文)》 2022年 第16卷 第4期 页码 574-583 doi: 10.1007/s11684-021-0882-1
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
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
The function and regulation of OTU deubiquitinases
Jiansen Du, Lin Fu, Yingli Sui, Lingqiang Zhang
《医学前沿(英文)》 2020年 第14卷 第5期 页码 542-563 doi: 10.1007/s11684-019-0734-4
关键词: ubiquitin OTU deubiquitinases structure function regulation
标题 作者 时间 类型 操作
Incremental value of contrast echocardiography in the diagnosis of left ventricular noncompaction
null
期刊论文
Challenges and opportunities in improving left ventricular remodelling and clinical outcome following
期刊论文
Assessment of global and regional left ventricular twist and displacement in anterior myocardial infarction
Wei HAN MM, Ming-Xing XIE MD, Qing LV MD, Xin-Fang WANG MD, Li ZHANG MM,
期刊论文
Prognostic value of fasting glucose on the risk of heart failure and left ventricular systolic dysfunction
Hui Wang, Yang Zhang, Zhujun Shen, Ligang Fang, Zhenyu Liu, Shuyang Zhang
期刊论文
Temporal echocardiography findings in patients with fulminant myocarditis: beyond ejection fraction decline
Houjuan Zuo, Rui Li, Fei Ma, Jiangang Jiang, Kun Miao, Haojie Li, Eike Nagel, Marijana Tadic, Hong Wang, Dao Wen Wang
期刊论文
Drug-coated balloon-only strategy for percutaneous coronary intervention of left main coronary artery
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
Evaluation of potential failure of rock slope at the left abutment of Jinsha River Bridge by model test
Zhiming ZHAO, Xihua WANG
期刊论文
Ventricular tachycardia in a disseminated MDR-TB patient: a case report and brief review of literature
null
期刊论文
cannulation of superior vena cava for a hemodialysis patient with an original dysfunctional catheter on the left
null
期刊论文
Analytical solution for SH wave propagating through a graded plate of metamaterial
Jinfeng ZHAO, Yongdong PAN, Zheng ZHONG
期刊论文
基于一种全新的优化多变量非等距模型对中国汉族成人左心室多普勒超声心动图测值生理性变异的校正方法
姚桂华, 陈湘云, 杨文静, 张青, 刘静, 梁欢, 孙慧, 许耀, 王丽, 徐金锋, 张澄, 孙丰荣, 张梅, 曾雪迎, 张运
期刊论文
Lung function and air pollution exposure in adults with asthma in Beijing: a 2-year longitudinal panel
期刊论文