title: An unusual cause of a prolonged activated coagulation time during cardiac surgery: congenital hypofibrinogenemia.
mesh_terms: D000328:Adult; D000347:Afibrinogenemia / Q000097:blood*; D006348:Cardiac Surgical Procedures; D002315:Cardiopulmonary Bypass; D006344:Heart Septal Defects, Atrial / Q000601:surgery*; D006801:Humans; D008297:Male; D014914:Whole Blood Coagulation Time