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Updated: Sep 6, 2025

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Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
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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.
Acta Neurochirurgica
|July 5, 2022
Summary
Optic system prolapse into an empty sella is a rare complication. Endoscopic endonasal chiasmopexy offers a direct, extradural approach to safely lift the optic system, minimizing manipulation and fibrosis.
Area of Science:
- Neurosurgery
- Ophthalmology
- Endocrinology
Background:
- Optic system prolapse into an empty sella is an uncommon complication following pituitary tumor management.
- This condition necessitates specialized diagnostic and therapeutic approaches.
Purpose of the Study:
- To detail the technical aspects of endoscopic endonasal chiasmopexy for managing optic chiasm prolapse.
- To outline the indications and diagnostic considerations for this rare complication.
Main Methods:
- Description of the technical nuances of endoscopic endonasal chiasmopexy.
- Discussion of diagnostic criteria for optic chiasm prolapse.
Main Results:
- Endoscopic endonasal chiasmopexy provides a direct surgical corridor to address optic system prolapse.
- The procedure can often be performed extradurally, preserving the optic chiasm.
Conclusions:
- Endoscopic endonasal chiasmopexy is an effective technique for treating optic system prolapse.
- Extradural approach protects the optic chiasm from direct manipulation and reduces postoperative scarring.

