[Application of natural orifice transluminal endoscopic surgery and laparoscopic single-site surgery techniques in colorectal surgery].

The research on natural orifice transluminal endoscopic surgery (NOTES) and laparoscopic single-site surgery (LESS) are current worldwide focuses international areas of minimally invasive surgery. NOTES needs further investigation, and as the most available of no scar techniques, LESS provides a transition. Currently, both laparoscopy-assisted NOTES colorectal resection and totally NOTES colorectal resection have been reported, however, the techniques are still mainly under animal investigation. Multiple LESS colorectal resections have been reported worldwide, and the feasibility has been proved by those reports. What's more, whether LESS colorectal resection can fulfil the requirements of radical tumor resection needs further investigation.