M itral valve leaflets consist of thin, pliable, fibrous material. The two leaflets—anterior and posterior—open by unfolding against the ventricular wall and close by apposition when the pressure in the left ventricle becomes greater than that in the left atrium. Mitral stenosis occurs when the mitral valve leaflets become stiffened, calcified, and unable to open completely during diastole. Thi...

OBJECTIVES We sought to investigate the geometric changes of the mitral leaflets and annulus, clarify the maximum tenting site of the leaflets, and quantify the valve tenting in ischemic mitral regurgitation (MR) using three-dimensional (3D) echocardiography. BACKGROUND Although the understanding of the mechanisms of ischemic MR has advanced recently, the geometric changes of the mitral leafl...

BACKGROUND The package leaflet included in the packaging of all medicinal products plays an important role in the transmission of medicine-related information to patients. Therefore, in 2009, the European Commission published readability guidelines to try to ensure that the information contained in the package leaflet is understood by patients. OBJECTIVE The main objective of this study was t...

To design more effective tissue-engineered heart valve replacements, the replacement tissue may need to mimic the biaxial stress-strain behavior of native heart valve tissue. This study characterized the planar biaxial properties of tissue-engineered valve leaflets and native aortic valve leaflets. Fibrin-based valve equivalent (VE) and porcine aortic valve (PAV) leaflets were subjected to incr...

OBJECTIVE Facing the hypothesis of participation of mechanical stress as a cause of mitral bioprosthesis dysfunction, we decided to assess the relation of preservation of the texture of the mitral bioprosthesis leaflets with left ventricular function, in addition to the casual formation of thrombus in left atrium in patients with left ventricular dysfunction from the implant of mitral bioprosth...

ABSTRACT: This study checked the severity and incubation period of isolates Coryneporacassiicola (C.c) in soybean cultivars, as well verified whether position leaflets influences susceptibility plant to target spot. The experiment was conducted randomized block with 8 C.c cultivars factorial scheme, five repetitions each block. plants were inoculated suspension from 2x104 conidia mL-1. number l...

Correspondence to: Sanjiv Kaul, MD, Cardiovascular Division, Box 800158, Medical Center, University of Virginia, Charlottesville, VA 22908-0158, USA; [email protected] . . . . . . . . . . . . . . . . . . . . . . . I n order to appreciate the spatiotemporal relation between the mitral leaflets and mitral annular plane during the cardiac cycle, one has to begin with the ‘‘neutral’’ position of the ...