Abstract
The endoscopic transnasal approach has become a procedure of choice for the surgical
management of pituitary lesions. However, in conventional endoscopic transnasal surgery,
the surgeon may become disorientated to the actual operating position. In our series,
31 patients have undergone an endoscopic transnasal approach to the pituitary lesions
with the use of the navigation system InstaTrakTM for real-time imaging. This image guidance system proved valuable for anatomic localization
during pituitary surgery. We have reduced the average surgical time, and improved
patient outcome. As consequence, complications during surgery should decrease and
safety should increase. Intraoperative image guidance is expected to have major advantageous
effects on pituitary surgery by allowing the surgeon to remove pathology more efficiently.
As this system is improved technically and surgeons become more proficient in its
use, there should be better postoperative outcomes.
Key words
Endoscopy - Transnasal Approach - Pituitary Lesions - Navigation System
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G. Ohhashi,M.D.
Department of Neurological Surgery ·
Jikei University
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Tokyo 105-8461, Japan
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