Object Using strict biochemical remission criteria, the authors assessed surgical outcomes after endoscopic transsphenoidal resection of growth hormone (GH)–secreting pituitary adenomas and identified preoperative factors that significantly influence the rate of remission. Methods A retrospective review of a prospectively maintained database was performed. The authors reviewed cases in which an endoscopic resection of GH-secreting pituitary adenomas was performed. The cohort consisted of 26 patients who had been followed for 3–60 months (mean 24.5 months). The thresholds of an age-appropriate, normalized insulin-like growth factor–I concentration, a nadir GH level after oral glucose load of less than 1.0 μg/l, and a random GH value of less than 2.5 μg/l were required to establish biochemical cure postoperatively. Results Overall, in 57.7% of patients undergoing a purely endoscopic transsphenoidal pituitary adenectomy for acromegaly, an endocrinological cure was achieved. The mean clinical follow-up duration was 24.5 months. In patients with microadenomas (4 cases) the cure rate was 75%, whereas in patients harboring macroadenomas (22 cases) the cure rate was 54.5%. Cavernous sinus invasion (Knosp Grades 3 and 4) was associated with a significantly lower remission rate (p = 0.0068). Hardy Grade 3 and 4 tumors were also less likely to achieve biochemical cure (p = 0.013). The overall complication rate was 11.5% including 2 incidents of transient diabetes insipidus and 1 postoperative CSF leak, which were treated nonoperatively. Conclusions A purely endoscopic transsphenoidal approach to GH-secreting pituitary adenomas leads to similar outcome for noninvasive macroadenomas compared with traditional microsurgical techniques. Furthermore, this approach may often provide maximal visualization of the tumor, the pituitary gland, and the surrounding neurovascular structures.

Background The American Association of Endocrine Surgeons (AAES) initiated a fellowship match in 2007. The profile of applicants who successfully match into an endocrine surgery (ES) fellowship has not previously been characterized. Methods An IRB-approved, web-based, survey was distributed to recent and current ES fellows. Results The survey response rate was 62% (56/90). The overall mean age was 33 years old (SD ± 3), 54% were female and 37% self-identified as non-white. Only 5% entered their surgical training with the aim of specializing in ES. During residency, respondents were exposed to high volumes of index ES cases. Sixty-two percent had dedicated research time. At the time of fellowship application, the median number of publications was 5 (range, 0-25), and 30% of respondents had additional advanced degrees. Conclusion Entering ES fellows have diverse backgrounds, with strong academic credentials. These data help inform the career mentoring of aspiring ES applicants.

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