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 continues to monitor the State of Texasâ implementation of legislation requiring a study and report on seismic activity in our state.ity of Irving leaders invite all community members to the Imagine Irving Open House from 6 to 8 p.m. Oct. 28 at South Irving Library, 601 Schulze Drive.