Results 31 to 40 of about 1,026,086 (312)

Repeat Transcatheter Aortic Valve Replacement and Follow-Up of Embolized Transcatheter Heart Valve After 13 Years

JACC: Case Reports, 2021
A 79-year-old woman was treated with a 23-mm balloon-expandable transcatheter heart valve (THV) that was initially complicated by an embolized THV requiring deployment in the descending aorta. She presented 13-years later with a degenerated bioprosthesis
Abdul Rahman Ihdayhid, MBBS, PhD, Janarthanan Sathananthan, MBChB, MPH, Richard Brown, MD, Philipp Blanke, MD, John G. Webb, MD   +4 more
doaj   +1 more source

Minimally Invasive Mitral Valve Surgery II: Surgical Technique and Postoperative Management. [PDF]

, 2016
Techniques for minimally invasive mitral valve repair and replacement continue to evolve. This expert opinion, the second of a 3-part series, outlines current best practices for nonrobotic, minimally invasive mitral valve procedures, and for ...
Agnihotri, Arvind K, Ailawadi, Gorav, Barnhart, Glenn R, Farivar, R Saeid, Fayers, Trevor M, Goldman, Scott M, Grossi, Eugene A, Guy, T Sloane, Hargrove, W Clark, Hummel, Brian W, Khan, Junaid H, Lehr, Eric J, Lewis, Clifton TP, Malaisrie, S Chris, Mehall, John R, Moront, Michael G, Murphy, Douglas A, Rodriguez, Evelio, Ryan, William H, Salemi, Arash, Segurola, Romualdo J, Shemin, Richard J, Smith, J Michael, Smith, Robert L, Weldner, Paul W, Wolfe, J Alan   +25 more
core   +1 more source

Large water-hammer pressure for column separation in pipelines [PDF]

, 1991
Water-hammer pressures in a pipeline due to the collapse of a vapor cavity adjacent to a valve are investigated. A water-hammer event is initiated by the closure of a valve in a simple reservoir-pipeline-valve system.
Simpson, A., Wylie, E.
core   +1 more source

Response Surface Optimization of the Preparation Process of Compound Yogurt with Cistanche deserticola and Jujube and Evaluation of the Antioxidant Activity of Compound Yogurt with Biosensors

Shipin gongye ke-ji, 2022
The preparation process of compound yogurt with added cistanche and jujube was optimized using single-factor experiments and response surface curve analysis by applying evaluation indicators including taste, texture, odor, and color.
Bolu SUN, Yanmei YANG, Lin YANG, Guangrui YANG, Daopu TANG, Jingxue WAN, Hongxia SHI   +6 more
doaj   +1 more source

Valve-in-Valve Transcatheter Aortic Valve Implantation for Degenerated Bioprosthetic Heart Valves

JACC: Cardiovascular Interventions, 2011
We sought to analyze outcomes of patients with degenerated surgically implanted bioprosthetic heart valves undergoing valve-in-valve (viv) transcatheter aortic valve implantation (TAVI).Redo cardiac surgery for degenerated bioprosthetic heart valves is associated with increased risks, particular in elderly patients with comorbidities.
Eggebrecht, Holger, Schäfer, Ulrich, Treede, Hendrik, Boekstegers, Peter, Babin-Ebell, Jörg, Ferrari, Markus, Möllmann, Helge, Baumgartner, Helmut, Carrel, Thierry, Kahlert, Philipp, Lange, Philipp, Walther, Thomas, Erbel, Raimund, Mehta, Rajendra H., Thielmann, Matthias Klaus, Schäfer, Ulrich   +15 more
openaire   +3 more sources

Failed Valve-In-Valve Transcatheter Aortic Valve Implantation

JACC: Cardiovascular Interventions, 2012
In 2004, a 68-year-old man received aortocoronary bypass surgery and a 23-mm Hancock porcine bioprosthesis (Medtronic, Minneapolis, Minnesota). Six years later, in January 2011, cardiac re-evaluation was performed due to progressive dyspnea.
Klotz, Stefan, Scharfschwerdt, Michael, Richardt, Doreen, Sievers, Hans H.   +3 more
openaire   +2 more sources

Karl August Hermann - 150 Jahre (1851-1909) [PDF]

Linguistica Uralica, 2022
Valve-Liivi Kingisepp
doaj   +1 more source

The influence of laser hardening on wear in the valve and valve seat contact [PDF]

, 2009
In internal combustion engines it is important to manage the wear in the valve and valve seat contact in order to minimise emissions and maximise economy.
H. Taylor, Lewis, Lewis, Lewis, P. King, Pantelis, R. Lewis, Rudnev, T. Slatter, Tianmin   +9 more
core   +1 more source

A simple method for high-precision evaluation of valve flow coefficient by computational fluid dynamics simulation

Advances in Mechanical Engineering, 2017
Flow coefficient is an important performance index associated with the energy efficiency of a valve, and an effective method to evaluate valve flow coefficient is necessary for valve industry.
Xiao-Ming Zhou, Zhi-Kun Wang, Yi-Fang Zhang   +2 more
doaj   +1 more source

A calcified polymeric valve for valve-in-valve applications [PDF]

Journal of Biomechanics, 2017
The prevalence of aortic valve stenosis (AS) is increasing in the aging society. More recently, novel treatments and devices for AS, especially transcatheter aortic valve replacement (TAVR) have significantly changed the therapeutic approach to this disease.
Falahatpisheh, Ahmad, Morisawa, Daisuke, Toosky, Taraz T, Kheradvar, Arash   +3 more
openaire   +3 more sources