Atrial Septal Defect, Sinus Venosus Type, also known as asd, sinus venosus type, is related to heart septal defect and atrial heart septal defect. An important gene associated with Atrial Septal Defect, Sinus Venosus Type is CITED2 (Cbp/P300 Interacting Transactivator With Glu/Asp Rich Carboxy-Terminal Domain 2). Affiliated tissues include heart, and related phenotypes are left-to-right shunt and fatigue