Abstract
Background: Rectal cancer is a common malignant tumor in the gastrointestinal tract. This work compares the effects of transumbilical laparoscopic surgery (TULS) and laparoscopic-assisted surgery on the anus-preserving effect of low/ultralow rectal cancer. Materials and Methods: Eighty patients with rectal cancer admitted to our hospital from February 2011 to July 2016 were randomly selected and divided into the laparoscopic group and TULS group, 40 cases in each group, all underwent radical anorectal cancer radical surgery. Statistical analysis was performed on surgical-related indicators in the two groups. Results: Two patients converted to open surgery were excluded. Five patients were excluded because of radical abdomen perineal resection for rectal cancer. Six patients were converted to TULS from laparoscopic surgery. Sixty-seven patients in the experimental group successfully completed anus-sparing surgery, and none died during the operation. The compliance rate of the distance between the lower edge of the tumor and the incision edge of the specimen in the TULS group was better than that in the laparoscopic group (P < .05). There were no significant differences between the two groups in terms of surgical time, blood loss, number of lymph node dissections, functional time of voluntary defecation and postoperative complications, tumor-free recurrence rate at 3 years, and 3-year survival rate after surgery (P > .05). Conclusions: The TULS method is safe and feasible in low and ultralow rectal cancer surgery. It has more advantages than laparoscopic-assisted surgery for anus preservation.
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