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.
The City of Irving, located between Dallas and Fort Worth, is the 13th most populous city in Texas and the 94th in the United States.The city, home to approximately 217,700 residents, encompasses an area of 68 square miles, including Dallas-Fort Worth International Airport.ighlights. The City of Irving is one of five cities in the state and 89 in the nation with a AAA rating from both Standard and Poorâs (S&P) and Moodyâsâratings that it has maintained since 2007 and during the worst recession in U.S. history.