Ehlers-Danlos Syndrome, Cardiac Valvular Type, also known as cardiac-valvular ehlers-danlos syndrome, is related to contractures, pterygia, and spondylocarpotarsal fusion syndrome 1a and brittle bone disorder. An important gene associated with Ehlers-Danlos Syndrome, Cardiac Valvular Type is COL1A2 (Collagen Type I Alpha 2 Chain). Affiliated tissues include skin and heart, and related phenotypes are abnormal heart valve morphology and mitral regurgitation