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

Gang Zhang,Jun Luo,Guo Chen

Frontiers of Medicine 2016, Volume 10, Issue 3,   Pages 351-355 doi: 10.1007/s11684-016-0465-8

Abstract:

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 fatalBoth patients were admitted for “severe aortic stenosis,” and TAVIs were performed.The second patient’s blood pressure fluctuated greatly for several minutes after the valve implantation

Keywords： aortic stenosis     transcatheter aortic valve implantation     right coronary occlusion     cardiac group    

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in improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aorticvalve replacement

Frontiers of Medicine 2021, Volume 15, Issue 3,   Pages 416-437 doi: 10.1007/s11684-021-0852-7

Abstract: Over the last half century, surgical aortic valve replacement (SAVR) has evolved to offer a durable andefficient valve haemodynamically, with low procedural complications that allows favourable remodellingThe latter has become more challenging among elderly patients, particularly following trans-catheter aorticvalve implantation (TAVI).surgery requires comprehensive assessments from aortic valve energy loss, valvular-vascular impedance

Keywords： surgical aortic valve replacement     trans-catheter aortic valve implantation     left ventricular hypertrophy    

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The evolution of surgical and medical treatment of aortic root aneurysm

Xu Yu Jin,Li Yuan,Mario Petrou,John R. Pepper

Frontiers of Medicine 2014, Volume 8, Issue 4,   Pages 427-432 doi: 10.1007/s11684-014-0385-4

Abstract:

Since first report of aortic root replacement in 1968, the surgical risk and long term outcome ofpatients with aortic root aneurysm have been continuously improving.In the last 30 years, the surgical approach is also evolving towards more valve conservation with prophylactical

Keywords： aortic root aneurysm     aortic root replacement     valve sparing root replacement     personalised external aortic    

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Histopathological study of congenital aortic valve malformations in 32 children

HUANG Ping, WANG Hongwei, LI Yanping, CHENG Peixuan, LIU Qingjun, ZHANG Zhenlu, LIU Jianying

Frontiers of Medicine 2007, Volume 1, Issue 1,   Pages 74-78 doi: 10.1007/s11684-007-0015-5

Abstract: The histopathological characteristics of congenital aortic valve malformations in children were investigatedaortic valve dysfunction due to congenital aortic valve malformations between January 2003 and DecemberAmong 32 children with congenital aortic valve malformations, the age was ranged from six to 18 yearsCongenital aortic valve malformations in children involve males more than females, mostly associatedAortic insufficiency is more common in children with congenital aortic valve malformations.
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Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm

Zeyu Wu, Zhe Chen, Lin Peng

Frontiers of Medicine 2012, Volume 6, Issue 1,   Pages 85-88 doi: 10.1007/s11684-012-0174-x

Abstract: however, no evidence showing the advantages of using the harmonic scalpel in complicated abdominal aortic

Keywords： abdominal aortic aneurysm     harmonic scalpel     minimally invasive    

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engineering in the construction of numerical simulation oriented patient-specific model of stented aortic

Xianlong MENG, Wenyu FU, Yun ZHANG, Aike QIAO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 328-335 doi: 10.1007/s11465-010-0026-9

Abstract: the approaches to the reconstruction of a numerical simulation-oriented patient-specific model for aorticBased on a surface model of aortic arch aneurysm in STL format, reverse engineering concept was appliedmodel using CAD software Geomagic and Pro/E, and a simplified model of stent for the intervention of aorticbe meshed according to particular requirements in each volume; the finite element model of stented aorticThe approaches of modeling were applicable not only for aortic arch aneurysm, but also for similar model

Keywords： reverse engineering     aortic arch aneurysm     surface model     meshing     finite element model    

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Aneurysmal dilatation of the aortic sinuses of Valsalva — beyond Marfan syndrome: a single centre experience

Maryanne Caruana,Mary N. Sheppard,Wei Li

Frontiers of Medicine 2014, Volume 8, Issue 4,   Pages 419-426 doi: 10.1007/s11684-014-0383-6

Abstract:

Aneurysmal dilatation of the aortic sinuses of Valsalva has been most extensively documented in theIn conclusion, there are differences in management of aortic dilatation in Marfan syndrome and congenital

Keywords： sinus of Valsalva aneurysms     Marfan syndrome     aortic dissection    

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Identification of variants associated with sporadic thoracic aortic dissection: a case--control study

Frontiers of Medicine 2021, Volume 15, Issue 3,   Pages 438-447 doi: 10.1007/s11684-020-0826-1

Abstract: Thoracic aortic dissection (TAD) without familial clustering or syndromic features is known as sporadicFurther bioinformatics analysis showed that COL3A1 was highly expressed in dissected aortic tissues

Keywords： sporadic thoracic aortic dissection     exome sequencing     gene COL3A1     case–control study     extracellular    

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Clinical significance of para-aortic lymph node dissection and prognosis in ovarian cancer

Xianxian Li, Hui Xing, Lin Li, Yanli Huang, Min Zhou, Qiong Liu, Xiaomin Qin, Min He

Frontiers of Medicine 2014, Volume 8, Issue 1,   Pages 96-100 doi: 10.1007/s11684-014-0316-4

Abstract: Moreover, the impact of para-aortic lymph node (PAN) removal on patient prognosis is still unclear.Consequently, in ovarian carcinoma cytoreductive surgery, resection of the para-aortic lymph node, which

Keywords： ovarian cancer     para-aortic lymph node     pelvic lymph node    

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Novel piezoelectric pump with “E”-shaped valve found from sub-experiments

Jianhui ZHANG, Jun HUANG, Xiaoqi HU, Qixiao XI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 212-218 doi: 10.1007/s11465-010-0009-x

Abstract: Increasing the driving frequency of a piezoelectric vibrator can resolve the bottleneck of low flow in a valveHowever, a piezoelectric pump of a traditional valve body presents the hysteretic nature of the valveFirst, through the sub-experiment on various parameters of the plate valve of a piezoelectric pump, thethe hysteretic nature of the valve, were discovered.Second, an “E”-shaped valve and piezoelectric pump with an “E”-shaped valve (

Keywords： piezoelectricity     valve     pump     experiment     “     E”     -shaped valve    

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Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 449-458 doi: 10.1007/s11708-014-0316-8

Abstract: This paper presents the well-known power system ED problem solution considering valve-point effect byhas been applied to various test systems with incremental fuel cost function, taking into account the valve-point

Keywords： artificial bee colony (ABC) algorithm     economic dispatch (ED)     valve-point effect     optimization    

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Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0726-y

Abstract: Balance valve is a core component of the 11000-meter manned submersible “struggle,” and its sealing performanceanalytical–numerical–experimental (ANE) model is proposed to obtain the minimum sealing force, ensuring no leakage at the valveFinally, the minimum sealing force equation is applied in a balance valve to be experimented using aThe balance valve designed through the minimum sealing force equation is leak-free in the experiment.Thus, the minimum sealing force equation is suitable for the ultrahigh pressure balance valve and has

Keywords： seawater balance valve     sealing performance     hybrid ANE model     FEM     minimum sealing force equation    

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Development of a novel two-stage proportional valve with a pilot digital flow distribution

Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 420-434 doi: 10.1007/s11465-020-0622-2

Abstract: of improving the dynamic performance, reliability, and digitization of the traditional proportional valve, a novel two-stage proportional valve with a pilot digital flow distribution is proposed from the viewpointof the dual nozzle-flapper valve’s working principle.First, the working principle and mathematical model of the proposed valve are determined.’s spring) on the main valve’s motion are analyzed on the basis of theory, simulation, and experiment

Keywords： two-stage proportional valve     digital flow distribution     high-speed on/off valve     position tracking characteristic    

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Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 439-441 doi: 10.1007/s11465-007-0075-x

Abstract: A force model of a control valve of injector is set up, and the changes of the fluid damping clearanceon the basis of the results of the computational fluid dynamics (CFD) and the experiments of control valveResults indicate that a damping clearance of 0.02–0.03 mm between the poppet and the valve guide is themost sufficient to dampen any excessive control valve poppet bouncing.

Keywords： control     computational     bouncing     CFD     excessive control    

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Piezoelectric pump with flexible venous valves for active cell transmission

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0712-4

Abstract: In this study, we designed a piezoelectric pump with a flexible venous valve inspired by that of humanselectric-solid-liquid multi-physical field coupling of the piezoelectric pump with a flexible venous valve

Keywords： venous valve     flexible venous valve     cell transmission     organ-on-a-chip system     piezoelectric device    

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Title Author Date Type Operation

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

Gang Zhang,Jun Luo,Guo Chen

Journal Article

in improving left ventricular remodelling and clinical outcome following surgical and trans-catheter aorticvalve replacement

Journal Article

The evolution of surgical and medical treatment of aortic root aneurysm

Xu Yu Jin,Li Yuan,Mario Petrou,John R. Pepper

Journal Article

Histopathological study of congenital aortic valve malformations in 32 children

HUANG Ping, WANG Hongwei, LI Yanping, CHENG Peixuan, LIU Qingjun, ZHANG Zhenlu, LIU Jianying

Journal Article

Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm

Zeyu Wu, Zhe Chen, Lin Peng

Journal Article

engineering in the construction of numerical simulation oriented patient-specific model of stented aortic

Xianlong MENG, Wenyu FU, Yun ZHANG, Aike QIAO,

Journal Article

Aneurysmal dilatation of the aortic sinuses of Valsalva — beyond Marfan syndrome: a single centre experience

Maryanne Caruana,Mary N. Sheppard,Wei Li

Journal Article

Identification of variants associated with sporadic thoracic aortic dissection: a case--control study

Journal Article

Clinical significance of para-aortic lymph node dissection and prognosis in ovarian cancer

Xianxian Li, Hui Xing, Lin Li, Yanli Huang, Min Zhou, Qiong Liu, Xiaomin Qin, Min He

Journal Article

Novel piezoelectric pump with “E”-shaped valve found from sub-experiments

Jianhui ZHANG, Jun HUANG, Xiaoqi HU, Qixiao XI,

Journal Article

Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Journal Article

Nonlinear sealing force of a seawater balance valve used in an 11000-meter manned submersible

Journal Article

Development of a novel two-stage proportional valve with a pilot digital flow distribution

Qiang GAO, Yuchuan ZHU, Changwen WU, Yulei JIANG

Journal Article

Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Journal Article

Piezoelectric pump with flexible venous valves for active cell transmission

Journal Article