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Updated: Jul 17, 2026
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Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas
Published on: January 17, 2018
Electromagnetic field system for transsphenoidal surgery on recurrent pituitary lesions - technical note
Takumi Abe1, Daisuke Tanioka, Koichi Sugiyama
1Department of Neurosurgery, Showa University School of Medicine, Shinagawa-ku, Tokyo 142-8666, Japan. takumi@med.showa-u.ac.jp
Surgical Neurology
|January 11, 2007
Summary
The EMF system simplifies difficult transsphenoidal reoperations by easily cutting and vaporizing scar and tumor tissue. This advanced cautery system minimizes damage to surrounding structures, improving surgical outcomes for recurrent pituitary lesions.
Area of Science:
- Neurosurgery
- Otolaryngology
- Medical Devices
Background:
- Transsphenoidal surgery for recurrent pituitary lesions is challenging due to scar tissue.
- A novel electrosurgical device, the EMF system, offers a potential solution for reoperation.
Observation:
- The EMF system utilizes 13.56 MHz current for precise tissue coagulation, cutting, and vaporization.
- Its slim, flexible handpieces allow access to deep, narrow surgical spaces.
Findings:
- The EMF system effectively cut and vaporized scar tissue in 18 patients undergoing transsphenoidal reoperation.
- It safely vaporized firm, fibrotic tumor tissue in 3 patients without damaging surrounding structures.
Implications:
- The EMF system facilitates easier and safer transsphenoidal reoperations, especially for firm tumors.
- This technology may reduce operative time through efficient tissue vaporization.
- It offers a valuable tool for managing complex recurrent pituitary lesions.
