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  • Title: Endoscopic endonasal transsphenoidal surgery for pituitary tumors.
    Author: Shen CC, Wang YC, Hua WS, Chang CS, Sun MH.
    Journal: Zhonghua Yi Xue Za Zhi (Taipei); 2000 Apr; 63(4):301-10. PubMed ID: 10820909.
    Abstract:
    BACKGROUND: The traditional transsphenoidal approach for pituitary surgery can be performed via transnasal, transseptal, or sublabial routes through unilateral or bilateral nostrils. It requires wide mucosal and septal dissection and postoperative nasal packing. Endoscopic surgery has been widely used because it allows excellent visualization with minimal invasion. Recently, it has also been applied to pituitary surgery. METHODS: From January, 1997 to February, 1999, 40 patients with pituitary adenomas underwent the transsphenoidal approach using a rigid endoscope via one nostril. Among the 40 cases, 18 were prolactinomas, seven were growth hormone-secreting adenomas and 15 were nonfunctional adenomas. RESULTS: After surgery, complete resolution or improvement of symptoms and restoration of normal hormone levels were achieved in 16 patients with prolactinomas, five with growth hormone-secreting adenomas and 12 with nonfunctional macroadenomas. One patient with a recurrent microprolactinoma needed a second operation to remove the cavernous portion of the tumor. Another male patient with a macroprolactinoma who experienced galactorrhea and gynecomastia showed improvement of clinical symptoms after the operation. Two patients with residual growth hormone-secreting macroadenomas in the cavernous sinus needed Sandostatin treatment. Three patients with nonfunctional macroadenomas underwent nearly total resection leaving residual tumor in the cavernous sinus, which then required adjuvant radiotherapy. No complications related to this approach were encountered in the patients during the follow-up period. CONCLUSIONS: Endonasal transsphenoidal endoscopic surgery can be employed for treating pituitary tumors without septal or sublabial complications. Postoperative suffering was reduced and hospitalization was shortened by this mini-invasive procedure. This surgical procedure can be used for both microadenomas and macroadenomas.
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