Microscopic versus Endoscopic Transsphenoidal Surgery for Pituitary Adenomas: Comparative Outcomes Analysis during the Transition of Methods of a Single Surgeon

Introduction: The transition from microscopic to a fully endoscopic transsphenoidal surgery requires a surgeon to assess how the change in surgical technique will affect the extent of tumor resection (EOR), neurologic and endocrine outcomes, as well as the perioperative complication rate. We compared a single surgeon's experience transitioning from one technique to the other, and examined the operative outcomes and EOR between microscopic versus endoscopic transsphenoidal surgery.