Abstract:Abstract: Objective To investigate the influence of Miles operation, minimally invasive double stapler and pull down for anterior resection on clinical effects and safety of patients with ultralow rectal cancer. Methods 210 patients with ultralow rectal cancer were chosen from June 2014 to June 2017 and divided according to operation scheme into 3 groups including A group (70 patients) with Miles operation, B group (70 patients) with double stapler for anterior resection and C group (70 patients) with pull down for anterior resection; and the operation-related clinical index, good and excellent rate of anal function with follow-up, meaning sense normal rate with follow-up and postoperative complications incidence of 3 groups were compared. Results The intraoperative blood loss volume, intraoperative lymph node dissection number and hospital stay of B group and C group were significant better than that in A group (P < 0.05). The operation time of B group and C group were significant longer than that in A group (P < 0.05). The good and excellent rate of anal function in 3 months and 6 months after operation of C group were significant higher than that in B group (P < 0.05). The meaning sense normal rate in 3 months and 6 months after operation of C group were significant higher than that in B group (P < 0.05). There was no significant difference in the postoperative complications incidence among the 3 groups (P > 0.05). Conclusion Minimally invasive anterior resection in treatment of patients with ultralow rectal cancer possess advantages in reducing surgical trauma degree and speeding up rehabilitation process and may increase the operation time; compared with minimally invasive double stapler, minimally invasive pull down for anterior resection in the treatment of patients with ultralow rectal cancer can efficiently protect anal function, improve the quality of daily life and the safety is worth recognition.