Laparoscopic ISR in the treatment of low rectal cancer: oncological efficacy and anal function

Abstract

Objective To investigate the efficacy of laparoscopic internal and external resection of the sphincter (ISR) in the treatment of low rectal cancer and its influence on anal function. Methods Seventy-eight patients with low rectal cancer in Beijing Fengtai Integrated Traditional Chinese Medicine and Western Medicine Hospital were retrospectively analyzed, including forty-two cases of laparoscopic ISR (observation group) and thirty-six cases of open ISR (control group). The operation related indexes, oncological efficacy, anal function classification, postoperative complication rate and postoperative survival rate were compared between the two groups. Results There was no significant difference in the operation time between the two groups (t=1.208, P>0.05). The intraoperative blood loss in the observation group was significantly lower than that in the control group, and the ventilation time, fasting time and length of stay were significantly shorter than those in the control group (P 0.05). Two Wexner score, frequency of defecation, urgency of defecation, bowel control reduce, Kirwan anal function grading were not statistically significant between the two groups (P>0.05). The incidence of postoperative complications in the observation group was significantly lower than that in the control group (χ2=5.520, P 0.05). Conclusions The effect of laparoscopic ISR and open ISR on the efficacy of oncology, survival rate and anorectal function in patients with low rectal cancer is comparable, but the former is less traumatic, reduces intraoperative bleeding, promotes rehabilitation, reduces complications, and has more clinical application value. Key words: Rectal neoplasms; Laparoscopes; ISR; Oncologic efficacy; Anal function