Heart valve dysplasia Heart valve dysplasia Heart valve dysplasia is a congenital heart defect which affects the aortic, pulmonary, mitral, and tricuspid heart valves. Dysplasia of the mitral and tricuspid valves can cause leakage of blood or stenosis. Dysplasia of the mitral and tricuspid valves - also known as the atrioventricular (AV) valves - can appear as thickened, shortened, or notched valves. The chordae tendinae can be fused or thickened. The papillary muscles can be enlarged or atrophied. The cause is unknown, but genetics play a large role. Dogs and cats with tricuspid valve dysplasia often also have an open foramen ovale, an
Gold Is Where You Find It of Robin Hood", which was not ready for release. So he chose this screenplay, making it probably the first Western shot in the new process, and second Warner Bros. movie to be shot in new Technicolor. The film was shot near Weaverville, California. Gold Is Where You Find It Gold is Where You Find It is a 1938 American romantic drama film directed by Michael Curtiz and starring George Brent, Olivia de Havilland, and Claude Rains. Based on a story by Clements Ripley, with a screenplay by Warren Duff and Robert Buckner, the film is about the rivalry between farmers