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Updated: Feb 1, 2026

Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
Fruitful first experience with an 8K ultra-high-definition endoscope for laparoscopic colorectal surgery
Seiji Ohigashi1, Takashi Taketa1, Gen Shimada1
1Department of Gastrointestinal Surgery, St. Luke's International Hospital, Tokyo, Japan.
Abstract:
We performed laparoscopic surgery for three cases of colorectal cancer using an 8K ultra-high-definition endoscopic system, which offers 16-fold higher resolution than the current 2K high-definition endoscope. The weight of the camera has been successfully reduced to 370 g. To maximize the advantages of the 8K ultra-high-definition endoscope, surgery was performed by darkening the room and placing a large 85-in. display as close to the surgeon as possible. As a result, the autonomic nerve was preserved, and the membrane structure could be clearly observed. Moreover, we were able to feel the stereoscopic effect near the 3-D image. This suggests the possibility of improved curability and function preservation with the 8K endoscope. Although there are some disadvantages that need to be overcome, the 8K ultra-high-definition endoscope will surely contribute to further progress in laparoscopic surgery.
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