Effect of modified incision drainage combined with thread-drawing and precise minimally invasive surgery in the treatment of anal fistula on anal defecation function and complications / 中国医师进修杂志

ABSTRACT

Objective:To compare the effects of modified incision drainage combined with thread-drawing and precise minimally invasive surgery in the treatment of anal fistula on anal defecation function and complications.Methods:A total of 105 patients with anal fistula who were diagnosed and treated in Xin′an International Hospital from December 2018 to December 2020 were collected. The patients were divided into the observation group (58 cases) and the control group (47 cases) according to surgical methods. The observation group received modified incision drainage combined with thread-drawing surgery. The control group received precise minimally invasive anal fistula surgery. The treatment outcome, anal defecation function and complications were compared between the two groups.Results:The operation time, intraoperative blood loss, first defecation time after operation, normal eating time after operation in the two groups had no significant differences ( P>0.05). The hospital stay in the observation group was significantly longer than that in the control group (5.29 ± 1.53) d vs. (4.02 ± 1.16) d, there was statistical differences ( P<0.05). After operation, the resting pressure of the anal canal, resting rectal pressure, length of the tube high pressure belt, the maximum systolic pressure of the anal canal between the two groups had no significant differences ( P>0.05). The excellent and good rate of anal defecation function and complication rate between the two groups had no significant differences ( P>0.05). Conclusions:Modified incision drainage combined with thread-hanging surgery in the treatment of anal fistula is equivalent with precision minimally invasive surgery. Both can effectively improve the anal defecation function. The postoperative safety is good and there is no recurrence. However, the hospital stay of patients with precision minimally invasive surgery for anal fistula is relatively shorter.