Definition. Aortic valve regurgitation â or aortic regurgitation â is a condition that occurs when your heart's aortic valve doesn't close tightly. Aortic valve regurgitation allows some of the blood that was just pumped out of your heart's main pumping chamber (left ventricle) to leak back into it.efinition. Aortic valve regurgitation â or aortic regurgitation â is a condition that occurs when your heart's aortic valve doesn't close tightly. Aortic valve regurgitation allows some of the blood that was just pumped out of your heart's main pumping chamber (left ventricle) to leak back into it.
Prosper, Texas. Prosper is an affluent suburban town located in Collin and Denton counties within the state of Texas, United States. The town is located within the Dallas-Fort Worth metropolitan area. As of the 2010 census, the population was 9,423; As of 2017, the estimated population was 21,685.
Montgomery County is a county in the U.S. state of Texas. As of the 2010 census, its population was 455,746. A 2013 estimate places the population at 499,137. The county seat is Conroe. The county was created by an act of the Congress of the Republic of Texas on December 14, 1837 and is named for the town of Montgomery. Between 2000 and 2010, its population grew by 55%, the 24th-fastest rate of growth of any county in the United States.