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Objective : Pituitary apoplexy is a rare clinical syndrome caused by pituitary hemorrhage, hemorrhagic infarction, or ischemic infarction within a pituitary tumor or surrounding structure. We analyzed surgical outcomes of pituitary apoplexy. Methods : From 1995 to 2004, we reviewed our experience of 29 cases with pituitary apoplexy. In all patients, pre- and postoperative clinical presentation were checked and endocrine study were performed. Results : The most frequent symptoms were visual disturbance (24 cases, 82.8%) and headache (22 cases, 75.9%). After surgery, headache improved in 86.4%, 88.9% among 18cases who had preoperative reduction in visual acuity and 75.0% among 12 cases who had preoperative reduction in visual field improved. In endocrine study, long-term steroid and thyroid hormone replacement therapy was necessary in 42.9% of 14 cases presenting preoperative hypopituitarism. Postoperative transient hypopituitarism developed in 5 cases (33.3%) and they all recovered in follow up study. Postoperative endocrinological recovery were in 77.9% of 9 cases with preoperative prolactinoma, 1 case in 2 cases with acromegaly and one case with Cushing disease. Postoperative complications were diabetes inspidus(DI) in 1 case (3.4%), cerebrospinal fluid(CSF) leakage in 2 cases (6.8%) and death in 1 case (3.4%) due to sepsis. Conclusion : We report good results through surgery of pituitary apoplexy in a clinical and endocrine outcomes. The surgery should be performed as soon as possible to be a suitable method for treating pituitary apoplexy.