Endocrinol Metab > Volume 24(3); 2009 > Article
Journal of Korean Endocrine Society 2009;24(3):181-188.
DOI: https://doi.org/10.3803/jkes.2009.24.3.181    Published online September 1, 2009.
Pituitary Hormonal Changes after Transsphenoidal Tumor Removal in Non-Functioning Pituitary Adenoma.
Min Suk Lee, Seung Jin Han, Eun Kyung Kim, Joo An Hwang, Yoon Sok Chung, Se Hyuk Kim, Kyung Gi Cho, Nae Jung Rim, Ho Sung Kim
1Department of Endocrinology and Metabolism, Ajou University School of Medicine, Korea.
2Department of Neurosurgery, Ajou University School of Medicine, Korea.
3Department of Diagnostic Radiology, Ajou University School of Medicine, Korea.
The present study investigated the rates and the potential predictors of either new pituitary loss or recovery of hormonal function after transsphenoidal removal of a non-functioning pituitary adenoma. METHODS: Patients who underwent transsphenoidal removal of a non-functioning pituitary adenoma from January 2003 to December 2007 at Ajou University Medical Center were included in this retrospective analysis. Patients were excluded if they had a history of previous pituitary tumor surgery, or did not have preoperative pituitary hormonal data. RESULTS: Of 42 patients included in the analysis, 36 patients had hypopituitarism, 21 patients had "stalk compression" hyperprolactinemia, and 2 patients had normal pituitary function. At long term follow-up (longer than 6 months), 13 patients showed postoperative pituitary hormonal recovery in at least 1 hormonal axis, while 6 patients had developed postoperative hormonal loss in at least 1 hormonal axis. On analysis, neither preoperative serum prolactin level nor tumor size was related to postoperative pituitary hormonal changes. CONCLUSION: More than 1/3 of patients who underwent transsphenoidal surgery showed postoperative pituitary hormonal recovery.
Key Words: non-functioning pituitary adenoma, pituitary hormone, pituitary surgery, postoperative outcome

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