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Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Endoscopic extracapsular dissection for resection of pituitary macroadenomas: technical note
Roukoz Chamoun1, Masayoshi Takashima2, Daniel Yoshor1
1Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, United States.
Summary
Endoscopic extracapsular resection offers a safe and effective technique for pituitary macroadenoma removal. This method allows for complete tumor resection while preserving normal gland function.
Area of Science:
- Neurosurgery
- Endoscopic Surgery
- Pituitary Surgery
Background:
- Transsphenoidal surgery has evolved with endoscopic techniques.
- Limited attention has been given to the dissection technique for pituitary tumor removal itself.
- Extracapsular dissection is an advanced technique for pituitary tumor removal.
Purpose of the Study:
- To describe and illustrate the technique for endoscopic extracapsular resection of pituitary macroadenomas.
- To highlight the benefits of extracapsular dissection in pituitary macroadenoma surgery.
Main Methods:
- Adoption of an extracapsular dissection technique for endoscopic resection of pituitary macroadenomas.
- Careful dural opening without disrupting the macroadenoma pseudocapsule.
- Inferior and lateral dissection of the pseudocapsule, followed by internal debulking and circumferential extension of the extracapsular dissection.
Main Results:
- Endoscopic visualization facilitates direct-vision identification and dissection of the pseudocapsule.
- Extracapsular dissection allows for complete macroadenoma resection.
- Preservation of the normal pituitary gland and diaphragma is achieved.
Conclusions:
- Endoscopic transsphenoidal approach enables extracapsular dissection for many pituitary macroadenomas.
- Preliminary experience suggests a high rate of complete resection.
- The technique appears to be associated with no increase in complications.
