1. to acquire by force of arms; win in war: to conquer a foreign land. 2. to overcome by force; subdue; vanquish: to conquer an enemy. 3. to gain or win by effort, personal appeal, etc.: conquered the hearts of the audience. 4. to gain a victory over; surmount; master; overcome: to conquer one's fear.
1 If your heart isn't working efficiently, you may feel aortic regurgitation symptoms including fatigue and short of breath.  Aortic regurgitation can develop suddenly or over decades. It has a variety of causes, such as rheumatic fever or infection.
This is called mitral regurgitation. People with severe mitral regurgitation can develop symptoms such as shortness of breath, fatigue and leg swelling. Rarely, heart surgery is needed to repair the damaged valve. In most people with mitral valve prolapse, the cause is unknown.