TY - RPRT TI - Dramatic decrease in the pulmonary artery systolic pressure and disappearance of the interatrial shunt with sildenafil treatment in a patient with primary pulmonary hypertension with atrial septal aneurysm and a severe right to left shunt through the patent foramen ovale. AU - Osman Karakaya AU - Nihal Ozdemir AU - Cihangir Kaymaz AU - Irfan Barutcu PY - 2006 DO - 10.1016/j.ijcard.2005.05.076 UR - https://pubmed.ncbi.nlm.nih.gov/16507322/ ID - 16507322 ER -