Related Experiment Video
Updated: Sep 6, 2025
Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
How I do it: endoscopic endonasal chiasmopexy for optic chiasm prolapse
Felipe Constanzo1,2, Jaime Pinto3,4, Thomas Schmidt3,5
1Department of Skull Base Surgery, Clinica Bio Bio, Avenida Alessandri 3515, Talcahuano, Concepcion, Chile. constanzo.md@gmail.com.
Background:
Prolapse of the optic system into an empty sella is an unusual complication of the management of pituitary tumors.
Method:
We described the technical nuances for an endoscopic endonasal chiasmopexy, the indications for the procedure, and the caveats on the diagnosis of optic chiasm prolapse.
Conclusion:
The endoscopic endonasal chiasmopexy provides a direct route to lift the optic system. In most cases, the procedure may be achieved extradurally, protecting the chiasm from manipulation and postoperative fibrosis.
