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Clinical Trial Summary

BACKGROUND: Currently, the lateral internal sphincterotomy is the treatment of choice for a chronic anal fissure. However, the length of the internal sphincter incision varies, due to lack of standardization. Insufficient length increases the risk of recurrence.

OBJECTIVE: To compare a new ultra-modified internal sphincterotomy technique to the closed lateral sphincterotomy for treating chronic anal fissures, based on internal anal sphincter function and postoperative complications.

DESIGN: Prospective, randomized, controlled trial (block randomization method) SETTING: Pamukkale University hospital in Denizli-Turkey PARTICIPANTS: 200 patients with chronic anal fissures INTERVENTION: Patients were randomly assigned to receive either Sungurtekin technique (n = 100; ultra-modified group), or the closed lateral internal sphincterotomy (n = 100; closed-lateral group). Follow-up was 2 years.

MAIN OUTCOME MEASURES: The primary outcome was chronic anal fissure healing. The secondary outcomes were complications, visual analog scale pain scores, sphincter pressures, and incontinence scores.


Clinical Trial Description

Although the lateral internal sphincterotomy is the treatment of choice for CAF, it has several drawbacks. First, the lower portion of the internal sphincter is nested in the lowermost part of the anus. Thus, an incision from the fissure base up to the dentate line removes support to the inner sphincter structure on the incision site. In our opinion; this is the main cause of different levels of incontinence developing in the postoperative period. Second, the internal sphincter muscle is shorter in women than in men. Therefore, women are at higher risk of postoperative anal incontinence than men. Third, because the lateral internal sphincterotomy is not standardized, the length of the internal sphincter incision varies, depending on the surgeon's discretion and competency. Fourth, an incision that is too short increases in the risk of recurrence.

The investigators believe that this observation could be explained by the fact that the length of the incision required for a lateral internal sphincterotomy procedure has not been standardized ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04428697
Study type Interventional
Source Pamukkale University
Contact
Status Active, not recruiting
Phase N/A
Start date May 1, 2013
Completion date August 1, 2020

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