Results 71 to 80 of about 551,312 (317)

Aortic valve replacement after aortic valvuloplasty for calcified aortic stenosis [PDF]

European Journal of Cardio-Thoracic Surgery, 1996
This study concerns patients who underwent one or several aortic balloon valvuloplasties at our institution and subsequently required cardiac surgery, either on an emergency basis after aortic valvuloplasty or due to the development of aortic stenosis.Between February 1987 and December 1993, 137 patients (73 male, 64 female, mean age 72 +/- 9 years ...
R, Soyer, F, Bouchart, J P, Bessou, M, Redonnet, D, Mouton-Schleifer, G, Derumeaux, J, Arrignon, B, Letac   +7 more
openaire   +2 more sources

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Diagnostic accuracy of mediastinal width measurement on posteroanterior and anteroposterior chest radiographs in the depiction of acute nontraumatic thoracic aortic dissection

, 2012
We aimed to explore the diagnostic accuracy of various mediastinal measurements in determining acute nontraumatic thoracic aortic dissection with respect to posteroanterior (PA) and anteroposterior (AP) chest radiographs, which had received little ...
Wan Chi Chan, Yeung, Tsz Wai, Chan, Wan Chi, Lai, Vincent, Tsz Wai Yeung, Vincent Lai, Wai Kan Tsang, Tsang, Wai Kan   +7 more
core   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

Classical supravalvar aortic stenosis and peripheral pulmonary stenosis [PDF]

, 2014
Supravalvar aortic stenosis as well as peripheral pulmonary stenosis are rare forms of congenital heart disease, which occur, however, relatively frequently in association.
Ramakrishnan, S., Gupta, S.K., Kahr, P.C., Kothari, Shyam S.   +3 more
core  

High-intensity interval exercise training before abdominal aortic aneurysm repair (HIT-AAA): protocol for a randomised controlled feasibility trial [PDF]

, 2014
Introduction: In patients with large abdominal aortic aneurysm (AAA), open surgical or endovascular aneurysm repair procedures are often used to minimise the risk of aneurysm-related rupture and death; however, aneurysm repair itself carries a high risk.
Kerr, K., Kerr, Karen, Weston, Matthew; id_orcid, Tew, G.A., Tew, Garry A, Tew, Garry, Danjoux, Gerard, Batterham, A.M., Batterham, Alan M, Alan M Batterham, Gray, Joanne, Martin, D., Danjoux, Gerard R., Nawaz, Shah, Matthew Weston, Yates, David, Weston, M., Elke Kothmann, Tew, G. A. (Garry), Gerard Danjoux, Gray, J., Weston, Matthew, Yates, D., Garry A Tew, Kothmann, Elke, Martin, Denis, Denis Martin, Martin, Denis; id_orcid, Nawaz, S., Batterham, Alan, Shah Nawaz, Kothmann, E., Joanne Gray, Danjoux, G., David Yates, Karen Kerr   +35 more
core   +1 more source

Durability of Soft Pneumatic Actuators: A Review and Benchmarking Protocol

Advanced Robotics Research, EarlyView.
Lack of durability is a key challenge hindering the broad scale adoption of soft pneumatic actuators (SPAs) in automation industries. This review provides a comprehensive overview of existing research on SPA durability, introduces a standardized durability benchmarking protocol to consolidate the testing of SPAs, and outlines promising directions for ...
Dickson Chiu Yu Wong, Yucheng Luo, Rob Bernardus Nicolaas Scharff   +2 more
wiley   +1 more source

How to achieve balloon stability in aortic valvuloplasty using rapid ventricular pacing [PDF]

, 2004
Balloon aortic valvuloplasty is now the treatment of choice for congenital aortic stenosis. Balloon stability may be difficult to achieve and this may result in a suboptimal result or even valve damage.
Shebani, S., DeGiovanni, Joseph V., Mehta, C., Grech, Victor E.   +3 more
core  

Retrograde ascending aortic dissection during or after thoracic aortic stent graft placement: insight from the European registry on endovascular aortic repair complications

, 2009
BACKGROUND: Single-center reports have identified retrograde ascending aortic dissection (rAAD) as a potentially lethal complication of thoracic endovascular aortic repair (TEVAR).
Czerny, Martin, Mehta, R.H., Czerny, M., Thompson, M., Erbel, Raimund, Eggebrecht, H., Lönn, L., Eggebrecht, Holger, Thompson, Matt, Lönn, Lars, Rousseau, Hervé, Mehta, Rajendra H, Erbel, R., Rousseau, H., European Registry on Endovascular Aortic Repair, Complications   +14 more
core   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source