prolapsed mitral valve syndrome is a common, benign disorder with prevalence of %0.3-6 in population. this syndrome also is known as barlows syndrome and flaapy mitral valve syndrome. prolapsed mitral valve is the dropping of one or two mitral valve leaflet(s) into the left atrium during ventricular systole. this malformation leads to incomplete closing of mitral valve and regurgitates the bloo...

In this note we study the systoles of convex hypersurfaces in $${\mathbb {R}}^{2n}$$ invariant under an anti-symplectic involution. We investigate a uniform upper bound ratio between systole and symmetric using symplectic capacities from Floer theory. discuss various concrete examples which can be understood explicitly.

The normal cardiac cycle consists of two phases, systole and diastole, which are repeated over time to maintain an adequate cardiac output. The systole has been traditionally regarded as the main capital phase, leaving at diastole as a secondary process and almost forgotten. However, today we know that diastole is a crucial stage in the functioning of the heart. Its dysfunction can lead even in...

Abstract Background Barlow's disease (BD) provides both diagnostic and therapeutic challenges. Annular dilation is typically seen in BD, however, data on regional deformation lacking. Purpose We hypothesized that mitral annulus dilates non-homogenously during ventricular systole BD. A method to calculate annular strain was developed applied a subset of BD patients healthy controls. Methods Ten ...

In a patient with severe tricuspid regurgitation and mild pulmonary stenosis due to carcinoid heart disease cross sectional echocardiography showed nodular thickening and coaptation of the tricuspid leaflets at the beginning of systole. The leaflets were, however, seen to be increasingly pulled apart as right ventricular systole proceeded. This finding, which is probably due to traction on the ...

Phasic right atrial and ventricular pressures and heart sounds were simultaneously recorded from dogs with normal and ectopic ventricular contractions. Heart sounds and electrocardiograms were recorded from humans. The first heart sound is significantly delayed in the absence of atrial systole. The time between onset of the ventricular pressure rise due to ventricular contraction and the beginn...