Objective To evaluate the safety and efficacy of botulinum toxin type A injection around internal anal sphincter and sector resection combined with epluchage and drainage by a small incision in treatment for stage Ⅱ and Ⅲ anal fissure，explore its surgical procedures and key points，and introduce a new surgical treatment for anal fissure. Methods The patients according to the inclusive criteria were divided into trial group and control group in randomized，parallel，controlled clinical trial method．The botulinum toxin type A injection around internal anal sphincter and sector resection combined with epluchage and drainage by a small incision was performed in the trial group, the anal fissure resection and part internal anal sphinctor latero-resection was perfermed in the control group. The safety index （including anal stenosis，incontinence，acute urinary retention，postoperative pain，and rectal anal tube pressure） and validity indicators （including cure rate，operation time，wound healing，wound healing grade，and scar size） were compared before and after operation between two groups．Results No anal stenosis and acute urinary retention occurred in the two groups. The anal incontinence score was not significantly different between two groups （P＞0.05）．The postoperative pain score in the trial group was significantly lower than that in the control group （24 h，the first defecation，and on week one after operation，all P＜0.01）．The difference of rectal anal canal pressure was not statistically significant between two groups （P＞0.05）．The cure rate was higher （P＜0.05），operation time and wound healing time were shorter （P＜0.01），wound healing was better （P＜0.05），scar area was smaller （P＜0.01） in the trial group as compared with the control group．Conclusions Comparing with the control group，high cure rate，short wound healing time，small size of scar，short operation time and minimal invasion are seen in the trial group．The shape and function of the anus are better reserved than that of the control group，this technique has a good clinical efficacy and safety．
ObjectiveTo evaluate the safety of shearing fracture ligation combining procedure for prolapse and hemorrhoids （PPH） in treatment for mixed hemorrhoids via a multicenter clinical study. MethodsTwo hundred and fortysix patients with mixed hemorroids were included from four a level of firstclass hospitals, which were averagely divided into shearing fracture ligation combining PPH group, PPH group, and shearing fracture ligation group according to the order of admission. The occurrence status of rectovaginal fistula, urethrorectal fistula, postoperative bleeding, acute urinary retention, anorectal stenosis, and anal incontinence were observed. And the anal function was evaluated by the anorectal pressure measurement. ResultsNo rectovaginal fistula or urethrorectal fistula happened among three groups. No anorectal stenosis happened in the shearing fracture ligation combining PPH group or the PPH group. The score of anorectal stenosis and anal incontinence in these two groups were lower than those in the shearing fracture ligation group (Plt;0.05). The rate of postoperative bleeding in the shearing fracture ligation combining PPH group was lower than that in the shearing fracture ligation group (Plt;0.05). There were acute urinary retentions happened among three groups, but without significant differences among them (Pgt;0.05). The anal canal resting pressure after operation was lower than that before operation among three groups (Plt;0.01), which in the shearing fracture ligation combining PPH group was lower than that in the shearing fracture ligation group after operation (Plt;0.05). There were no significant differences of the rectum feeling capacity or maximum rectum capacity between the shearing fracture ligation combining PPH group and PPH group before and after operation (Pgt;0.05), but compared with the level before operation in the shearing fracture ligation group, the rectum feeling capacity obviously decreased after operation (Plt;0.05), the maximum rectum capacity obviously increased (Plt;0.05). There were no significant differences of the maxinum anal canal systolic blood pressure between before and after operation in three groups and among three groups (Pgt;0.05). ConclusionsThe operation of shearing fracture ligation combined with PPH can protect the tissue of rectal cushion, remain the normal anatomy structure of anal canal. It has better clinical effect and is much safer than other methods.