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Influence of the valve-seat gap on the dynamics of reed type valvesInfluence de l'espace siège-soupape sur la dynamique des soupapes à lamelles multiples
(2020-10-01)
One of the main parts of refrigeration compressors is the automatic valve system used to control the suction and discharge processes. Experimental studies of these processes in the compressor environment are complex because ...
Análise Do Comportamento Hidrodinâmico In Vitro Dos Implantes De Próteses Valvares Transcateter Dentro De Biopróteses Aórticas Convencionais: Uma Nova Alternativa À Reoperações
(Universidade Federal de São Paulo (UNIFESP), 2017-12-21)
OBJECTIVE: Hydrodynamic evaluation of the transcatheter valve implantation in aortic bioprosthesis (valve-in-valve) and in sets of bioprosthesis with a transcatheter valve previously implanted (valve-in-valve-in-valve or ...
Expanding indications for transcatheter aortic valve replacement
(Expert Reviews Ltd., 2014)
Transcatheter aortic valve replacement (TAVR) has emerged as an accepted indication for non-operable patients with severe symptomatic native aortic valve stenosis (AS) and as a reasonable alternative for high-risk surgical ...
Transfemoral implantation of CoreValve Evolut-R aortic prosthesis in patient with prior ball-cage mechanical mitral valve prosthesis
(Elsevier, 2016)
Transcatheter aortic valve replacement remains challenge in patients with ball-cage-type mechanical valve in mitral position. Potential under-expansion of the percutaneous valve and interaction between the mitral ballcage ...
Bovine pericardial patch augmentation of one insufficient aortic valve cusp with twenty-three-year positive clinical follow-up independent of the patch degeneration
(2017-01-01)
Scientific progress shall ultimately boost the current acceptance level for conservative aortic valve surgery. The present text aimed to report the 23-year long-term follow-up of one patient operated with bovine pericardium ...
Transcatheter mitral valve replacement with the NaviGate stent in a preclinical model
(Europa Edition, 2017)
Aims: The aim of this study was to test the feasibility of transcatheter mitral valve implantation of the NaviGate device in acute and chronic preclinical models.
Methods and results: We evaluated NaviGate valved stent ...
Heyde syndrome treated by conventional aortic valve replacement
(2019-01-01)
Heyde syndrome manifests as aortic stenosis associated with gastrointestinal bleeding. We describe the case of a 64-year-old man who came to the emergency room due to acute heart failure and intermittent gastrointestinal ...