Results 31 to 40 of about 5,766,879 (155)
Abstract Background Previous studies showed that the effective regurgitant orifice area (EROA) is a strong predictor of clinical outcomes. However, there is controversy over the optimal threshold that identifies patients at high-risk, especially in secondary mitral regurgitation (MR).
J M Monteagudo Ruiz +13 more
openaire +1 more source
POSS‐PEG‐NHS and GSH cocrosslinked DPAV to prepare a multifunctional anticalcification valve substitute. This modification enhances mechanical properties, hemocompatibility, and re‐endothelialization while promoting anti‐inflammatory M2 macrophage infiltration and reducing calcification.
Yuqing Zhang +10 more
wiley +1 more source
ABSTRACT Background Transcatheter edge‐to‐edge repair (TEER) has become an established therapeutic option for patients with severe secondary mitral regurgitation (SMR). While randomized trials and registry data have reported outcomes up to 5 years, longer follow‐up data remain scarce.
Tobias Reithmayer +9 more
wiley +1 more source
Summary An 18‐year‐old Warmblood mare was presented to the Royal Veterinary College Equine Referral Hospital for investigation of progressive periocular and facial swelling, weight loss and tachycardia. Physical examination additionally identified bilateral pansystolic (grade 5/6 basilar left‐sided, 2/6 right‐sided), cardiac murmurs, submandibular ...
S. E. Talbot +4 more
wiley +1 more source
Background: Assessment of secondary tricuspid regurgitation (TR) severity does not correct for right heart function. We hypothesized that TR severity may be proportional or disproportional to the degree of right ventricular dysfunction and investigated ...
Huang, Jia-Yi +17 more
core +1 more source
Regurgitant volume in aortic regurgitation from a parameter estimation procedure
The regurgitant volume and regurgitant orifice area as well as total peripheral resistance and arterial compliance were estimated in a cardiovascular hydromechanical simulator and in 10 patients with aortic regurgitation.
S. A. Slordahl +5 more
core +1 more source
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco +7 more
wiley +1 more source
The effects of left ventricular load and contractility on mitral regurgitant orifice size and flow in the dog. [PDF]
Acute mitral regurgitation (MR) was produced in 12 dogs by closed chest partial valvulectomy and the relative contributions of MR pressure gradient (MRG), the time for regurgitant flow (VSI), and the MR orifice area (MRA) to mitral regurgitant volume (MRV) assessed.
D M, Borgenhagen +4 more
openaire +2 more sources
ABSTRACT Background Advanced heart failure (HF) remains a clinical challenge, and mitral transcatheter edge‐to‐edge repair (M‐TEER) has emerged as a potential bridging strategy. Aims To describe the clinical outcomes of M‐TEER in a single‐center cohort of patients with advanced HF and to identify anatomical and clinical features potentially associated ...
Pedro Castilhos de Freitas Crivelaro +8 more
wiley +1 more source
Time variation of mitral regurgitant flow in patients with dilated cardiomyopathy.
Angiographic results in patients with mitral regurgitation suggest that up to 50% of the regurgitant volume occurs during the preejection period. This contrasts markedly with the electromagnetic measurements of mitral regurgitant flow in anesthetized ...
A A Zelcer +5 more
core +1 more source

