• Yan-Long Han, Dong-Ming Chen, Cheng Zhang, Miao Pan, Xiao-Peng Yang, and Yong-Gang Wu.
• Department of Neurosurgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi.
• Medicine (Baltimore). 2018 Nov 1; 97 (45): e13198.

BackgroundProlactinomas affect patients' quality of life and even endanger lives. The study aimed to investigate the effect of the endoscopic endonasal transsphenoidal approach (EETA) on 52 patients with prolactinomas.MethodsA total of 52 patients with prolactinomas who had previously undergone EETA in the People's Hospital of Xinjiang Uygur Autonomous Region between January 2013 and December 2017 were retrospectively analyzed. Factors affecting the extent of resection and postoperative remission rates were also investigated.ResultsAll the patients were pathologically diagnosed with prolactinomas. Compared with giant adenomas, the total removal rate of microadenomas and macroadenomas was significantly increased (P < .05). In addition, the total removal rate of patients with noninvasive prolactin adenomas was significantly higher than patients with invasive prolactinadenomas (P < .05). Furthermore, there were no significant differences in postoperative remission rates among patients with prolactin adenomas from different ethnic groups (P > .05). Also preoperative administration of bromocriptine and preoperative prolactin (PRL) levels did not significantly affect therapeutic outcomes postsurgery (P > .05). Postoperative menstruation was improved or normalized in 20 (38.5%) female patients, vision was improved or normalized in 15 (28.8%) patients, and headaches were improved or normalized in 22 (42.3%) patients. Sexual function was improved in 2 male patients following surgery. A total of 6 patients exhibited a recurrence following surgery. A number of patients suffered from postoperative complications, including transient diabetes insipidus in 5 (9.6%) patients and postoperative transient cerebrospinal fluid leakage in 2 (3.8%) patients.ConclusionThe results of this study demonstrated that tumor size, preoperative PRL levels, and invasion of adenomas represent independent factors that can affect the success of surgery. The results suggested that EETA represents a therapeutic strategy for the treatment of patients with prolactinoma with high remission rates and low complication rates. Therefore, EETA should be considered a primary treatment for patients with prolactinomas who are not responsive to treatment with medical therapy.

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