INTRODUCTION

• Functional tricuspid regurgitation is characterized as tricuspid valve leakage during systole in the presence of structurally normal leaflets and chordae. However, its progression leads to right ventricular dilation and dysfunction. Historically, Right ventricle has been considered as a neglected cardiac chamber that does not contribute significantly to overall cardiac function. Yet, in recent years, many studies showed up that Right ventricular function has been an independent predictor of Morbi-mortality in many cardiovascular diseases
• Due to the asymmetric complex architecture of Right ventricle, the assessment of Right ventricular function by conventional echocardiography has many limitations that are overcame by Three-dimensional echocardiography and strain (two-dimensional speckle tracking echocardiography)
AIM OF THE WORK


• The aim of this study was to evaluate additional value of Right ventricular strain and Three-dimensional Right ventricular ejection fraction to assess right ventricular dysfunction in patients' native valvular disease with moderate and severe functional tricuspid regurgitation