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Medical Science Monitor Basic Research


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Association of High Prolactin Level on Postoperative Day 1 and Tumor Invasion with Female Gonadal Dysfunction After Trans-Sphenoidal Surgery of Pituitary Adenomas

Xinmei Huang, Rui Zhang, Yueyue Wu, Li Sheng, Jiong Xu, Bingbing Zha, Jun Liu

(Department of Endocrinology, The Fifth People’s Hospital of Shanghai, Fudan University, Shanghai, China (mainland))

Med Sci Monit 2018; 24: CLR9265-9271

DOI: 10.12659/MSM.910348

BACKGROUND: The aim of this study was to evaluate the risk factors of gonadal dysfunction among Chinese women of reproductive age with pituitary adenomas (PAs) after trans-sphenoidal surgery.
MATERIAL AND METHODS: We retrospectively evaluated 317 women (16–44 years old) who underwent gonadal function and hormone testing before and after trans-sphenoidal surgery for PAs during 2003–2012. Gonadal function was assessed on the basis of menstrual status.
RESULTS: Three women were excluded because of pre-existing gynecological diseases. Before trans-sphenoidal surgery, 34 (10.7%) women were eugonadal and 283 (89.3%) women had gonadal dysfunction. After trans-sphenoidal surgery, 130/189 (68.7%) women with follow-up menstruation data were eugonadal, and 59/189 (31.2%) women exhibited gonadal dysfunction. In addition, 67.4% women of reproductive age with PAs and gonadal dysfunction were restored by trans-sphenoidal surgery (P<0.01). Postoperative gonadal dysfunction was independently associated with high prolactin level at day 1 after trans-sphenoidal surgery (odds ratio (OR)=1.024; 95% confidence interval (CI)=1.005–1.043; P=0.012) and tumor invasion (OR=5.752; 95%CI=1.618–20.447; P<0.01). Based on the receiver operating characteristic (ROC) curve, prediction of gonadal dysfunction in women of reproductive age after trans-sphenoidal surgery for PAs using prolactin >46.82 µg/L on postoperative day 1 had sensitivity of 88%, specificity of 95%, positive predictive value of 98%, and negative predictive value of 76%, and an area under the ROC curve of 0.701.
CONCLUSIONS: Gonadal dysfunction is very common in Chinese women of reproductive age with PAs and can be effectively restored by trans-sphenoidal surgery. Prolactin >46.82 µg/L at 1 day after trans-sphenoidal surgery and tumor invasion can predict postoperative gonadal dysfunction in these patients.

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