Comparison of the clinical efficacy of laparoscopic extralevator abdominoperineal excision (ELAPE) and non-ELAPE for low rectal cancer

This study was performed to retrospectively analyze and compare the related clinical indicators between extralevator abdominoperineal excision (ELAPE) and non-ELAPE under laparoscopic for low rectal cancer. From June 2018 to September 2021, a total of 80 patients with low rectal cancer who underwent either of the above two types of surgeries at our Hospital were enrolled. Patients were divided into the ELAPE group and non-ELAPE group based on the different surgical methods. Preoperative general indicators, intraoperative indicators, postoperative complications, positive circumferential resection margin rate, local recurrence rate, hospital stay length, hospital expenses, and other related indicators were compared between the two groups. There were no significant differences in the comparison of preoperative indexes between the ELAPE group and non-ELAPE group, including age, preoperative BMI, and gender. Similarly, there were no significant differences in abdominal operation time, total operation time, and the number of intraoperative lymph nodes dissected between the two groups. However, the perineal operation time, intraoperative blood loss, intraoperative perforation rate, and positive circumferential resection margin rate were significantly different between the two groups. In the comparison of postoperative indexes, perineal complications, postoperative hospital stay length, and IPSS score were significantly different between the two groups. The use of ELAPE in treating T3-4NxM0 phase low rectal cancer was superior to non-ELAPE in reducing intraoperative perforation rate, positive circumferential resection margin rate, local recurrence rate, etc.