Application of nano-carbon and titanium clip combined labeling in robot-assisted laparoscopic transverse colon cancer surgery

Abstract Background: Robot-assisted laparoscopic transverse colon tumor surgery requires precise tumor localization. The purpose of this study was to evaluate the safety and efficacy of nano-carbon and titanium clip combination labeling methods in robot-assisted transverse colon tumor surgery. Methods: From January 2018 to January 2019, the clinical data of 16 patients who underwent preoperative nano-carbon and titanium clip combined with robot-assisted laparoscopic transverse colon cancer surgery were retrospectively analyzed. Results: Of the 16 patients, no signs of abdominal pain, fever, or diarrhea were observed after colonoscopy. Two titanium clips were seen on all of the 16 patients' abdominal plain films. Nano-carbon staining sites were observed during the operation, and no staining disappeared or abdominal cavity contamination. All patients underwent R0 resection. The average number of lymph nodes harvsted was 18.23±5.04 (range, 9-32). The average time to locate the lesion under the laparoscopic was 3.03±1.26 min(range, 1-6min), and the average operation time was 321.43±49.23 min (range, 240-400min). All were consistent with the surgical plan, and there was no intraoperative change of surgical procedure or conversion to open surgery. Conclusion: Preoperative colonoscopy combined with nano-carbon and titanium clip is safe and effective in robot-assisted transverse colon cancer surgery. A At the same time, the labeling method shows potential in shortening the operation time, ensuring sufficient safety margin and reducing complications.