title: Transseptal left heart catheterization as an aid in the diagnosis of cor triatriatum.
abstract: A case of cor triatriatum is described in which transseptal left heart catheterization was useful in making the diagnosis by allowing easy access to the accessory chamber for pressure measurements and angiography.
mesh_terms: D000790:Angiocardiography; D006328:Cardiac Catheterization; D002675:Child, Preschool; D003310:Cor Triatriatum / Q000175:diagnosis*; D004452:Echocardiography; D005260:Female; D006801:Humans