Mitral Valve Prolapse 1, also known as mitral valve prolapse, myxomatous 1, is related to orthostatic intolerance and microphthalmia, syndromic 2, and has symptoms including angina pectoris, chest pain and edema. An important gene associated with Mitral Valve Prolapse 1 is DCHS1 (Dachsous Cadherin-Related 1). Affiliated tissues include heart and eye, and related phenotypes are high palate and high, narrow palate