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J Korean Neurosurg Soc. 2013 Oct;54(4):317-22. doi: 10.3340/jkns.2013.54.4.317. Epub 2013 Oct 31.

Feasibility of endoscopic endonasal approach for recurrent pituitary adenomas after microscopic trans-sphenoidal approach.

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  • 1Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.

Abstract

OBJECTIVE:

The surgical approach for recurrent pituitary adenoma after trans-sphenoidal approach (TSA) is challenging. We report the outcomes of the endoscopic TSA for recurrent pituitary adenoma after microscopic TSA.

METHODS:

From February 2010 to February 2013, endoscopic TSA was performed for removal of 30 recurrent pituitary adenomas after microscopic TSA. Twenty-seven (90%) patients had a clinically non-functioning pituitary adenoma. Twenty-four (80%) patients suffered from a visual disturbance related to tumor growth. The clinical features and surgical outcomes were retrospectively analyzed for the ophthalmological, endocrinological, and oncological aspects.

RESULTS:

The mean tumor volume was 11.7 cm(3), and gross total resection was achieved in 50% of patients. The volumetric analysis based on the postoperative MR showed that the mean extent of resection rates were 90%. Vision was improved in 19 (79%) of 24 patients with visual symptoms, and endocrinological cure was achieved in all of three functioning pituitary adenomas; however, the post-operative follow-up endocrinological examination revealed a new endocrinological deficit in one patient. Two patients required antibiotics management for post-operative meningitis.

CONCLUSION:

The endoscopic TSA can be an effective treatment option for recurrent pituitary adenoma after microscopic TSA with acceptable outcome.

KEYWORDS:

Endoscopy; Pituitary adenoma; Revision surgery

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