It has been demonstrated that the Frank–Starling mechanism is also operative in the LA. LA output increases as atrial diameter increases, which contributes to maintaining a normal stroke volume. w4 ...

Background: Cardiac resynchronization therapy (CRT) is associated overall with reduction in mitral regurgitation (MR). However, an important subset of patients have newly developed significant MR ...

Atrial fibrillation is a cardiac arrhythmia in which the upper chambers of the heart the atria beat irregularly and, often, rapidly. The condition occurs as a consequence of uncoordinated ...

Acknowledgments This work was supported by the projects TEC2010–20633 from the Spanish Ministry of Science and Innovation and PII2C09–0224–5983 and PPII11–0194–8121 from Junta de ...

Atrial Fibrillation: Should We Screen All to Reduce Stroke? Leading US organizations don’t yet recommend universal screening for AF, despite it being blamed for 1 in 7 strokes.

Dilation and Evacuation (D&E) Abortion A D&E involves using suction and surgical instruments to empty a woman’s uterus. Doctors may recommend this type of procedure if it’s been 16 weeks or ...

1 Introduction Secondary or functional tricuspid regurgitation (TR) is caused by annular dilation and leaflet maladaptation, primarily driven by right heart remodeling. This condition often arises ...

A 27-year-old woman was referred for a fetal echocardiogram at 32 weeks' gestation to evaluate a pericardial effusion seen on a routine antenatal ultrasonogram. She has no significant medical history ...

Circ Res. 2004; 94: 1458–1465. Link Google Scholar 26 Tang M, Zhang S, Sun Q, Huang C. Alterations in electrophysiology and tissue structure of the left atrial posterior wall in a canine model of ...

Sequential analysis of atrial electromechanical coupling by tissue Doppler imaging (TDI) allows more precise analysis of atrial electromechanical abnormalities in different regions. 16 18 – 24 In the ...