Margerey (J Path Bact 1949; 61:203-208) studied 250 mitral valves and postulated that the mechanism of formation is intimal damage due to mechanical trauma at the leaflet coaptation. The damaged area is covered by fibrin, which subsequently becomes uplifted, or partially detached from the valve surface.
Irving, TX Current Weather and Forecast. Irving, TX Weather Forecast. 3:20 PM CDT SAT APR 15 2017. TONIGHT - Partly cloudy this evening - then becoming mostly cloudy. Lows in the mid 60s. South winds 5 to 10 mph.
Irving is located in northeast Texas. Irving is part of Dallas County. Irving has 67.02 square miles of land area and 1.00 square miles of water area. As of 2010, the total Irving population is 216,290, which has grown 12.88% since 2000. The population growth rate is much lower than the state average rate of 20.59% and is higher than the national average rate of 9.71%.