Surgery and Radiosurgery for Acromegaly: A Review of Indications, Operative Techniques, Outcomes, and Complications

Table 1

Preoperative factors correlating with surgical outcomes in acromegaly [7, 15].

Favorable outcomes	Unfavorable outcomes
Older age	Younger age
Preoperative GH level of <45 ng/mL	Preoperative GH level of >45 ng/mL
Noninvasive tumor	Invasive Tumor
Micoradenoma (≤10 mm)	Macroadenoma (>10 mm)
Densely granulated GH adenoma	Acidophil stem cell tumor