RT Journal Article SR Electronic T1 Oncological Safety of Ultrasonically Activated Surgical Devices During Gastric Cancer Surgery JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 3163 OP 3167 DO 10.21873/anticanres.14298 VO 40 IS 6 A1 TAKESHI KUBOTA A1 KATSUTOSHI SHODA A1 SOICHIRO OGAWA A1 TATSUYA MATSUMOTO A1 HIDEMASA KUBO A1 MASAYUKI YUBAKAMI A1 TAKUMA OHASHI A1 TOSHIYUKI KOSUGA A1 HIROTAKA KONISHI A1 ATSUSHI SHIOZAKI A1 TOMOHIRO ARITA A1 HIROKI SHIMIZU A1 YUSUKE YAMAMOTO A1 RYO MORIMURA A1 HISASHI IKOMA A1 YOSHIAKI KURIU A1 HITOSHI FUJIWARA A1 KAZUMA OKAMOTO A1 EIGO OTSUJI YR 2020 UL http://ar.iiarjournals.org/content/40/6/3163.abstract AB Background/Aim: Ultrasonically activated surgical devices (USADs) have become indispensable instruments for gastrointestinal surgery. In this study, we investigated the oncological safety of the use of USADs. Materials and Methods: We harvested and cultivated the splashes and mist scattered from an USAD when cutting MKN45-derived cancer nodules. Seven days later, we observed viable cancer cells and the total number of cells was counted. The histopathology of the nodules cut by the USAD was also examined. Results: The existence of viable cancer cells was confirmed by ex vivo cell culture. The number of viable cancer cells was reduced by slow grasping of the USAD. The surface of cancerous tissue cut by the USAD was partially heat-denatured, however, there were some parts in which cancerous tissue was exposed on the surface. Conclusion: Surgeons should recognize the possibility that cancer cells may be scattered by USAD use.