الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The term ”functional regurgitation” of the tricuspid valve is used to describe the regurgitation resulting from a diseased valve on the left side of the heart resulting in changes in the pulmonary circulation followed by changes in the right ventricle, thus changing its capacity and dimensions, which negatively affects the tricuspid valve and causes annular dilatation resulting in secondary tricuspid valve regurgitation.
Since 1950, researchers have been increasingly interested in distinguishing between functional regurgitation and organic regurgitation of the tricuspid valve. The prevailing belief among researchers was that secondary regurge did not require surgical intervention, as treatment of the cause would result in improved secondary changes. But the results in most situations were contrary to what was expected. This continued until 1974, when Carpentier and his assistants repaired the tricuspid valve in the same surgery in which mitral valve was dealt with surgically and achieved good results in improving the efficiency of the tricuspid valve.
Following this shift in surgical treatment of tricuspid valve regurgitation, valves repair generally and tricuspid valve repair specially has evolved.
The present study aims to compare the early results after de Vega’s repair versus the early results after ring annuloplasty of functional tricuspid regurgitation.
Tricuspid valve regugitation can be diagnosed clinically. It is also possible to determine the severity of the regurgitation and study the condition of the leaflets and the right ventricle by an echocardiography.
Many researchers see the need to repair the valve annulus to prevent further deterioration of the condition of the valve and its direct effects on the functions of the left ventricle, and there have been rapid developments in valve repair techniques.