NCT04319861

Anal Fistula Plug, a Retrospective Study

Long-term Clinical Results With the Use of an Anal Fistula Plug for the Treatment of Trans-sphincteric Anal Fistulas

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 207 (actual)
• Sponsor: Zhen Jun Wang · Academic / Other
• Sex: All
• Age: 15 Years – 69 Years
• Healthy volunteers: Not accepted

Summary

In this study, we retrospectively reviewed clinical data of patients who were treated with an anal fistula plug for trans-sphincteric anal fistulas, and evaluated the long-term therapeutic effect of an anal fistula plug and the risk factors impacting anal fistula healing. In addition, we assessed the effects of post-operative changes on anal function, as well as the risk factors affecting anal function.

Detailed description

Treatment of anal fistulas, especially involving significant anal sphincters, continues to represent a challenge for surgeons. Surgery has been the mainstay of treatment, and the ideal goal of anal fistula treatment is to obliterate the fistulous tract, while preserving the anal sphincter and avoiding fecal incontinence. The anal fistula plug is a sphincter-sparing procedure that uses biological substances to close an anorectal fistula. Several studies have preliminarily shown that the anal fistula plug had advantages of simple and repeatable application, preservation of sphincter integrity, minimal patient discomfort, and subsequent surgical options if needed. The healing rate of anal fistula plug varied widely, which range from 14% to 88%, and no significant effect on anal function in the short term. Therefore, long-term observation and a large sample size are needed to evaluate the long-term healing rate of an anal fistula plug, and the effect on anal function. The aim of this study is to assess the long-term therapeutic effect of an anal fistula plug in patients with trans-sphincteric fistula-in-ano, as well as the impact on anal function.

Conditions

• Healing Rate
• Recurrence
• Complication

Interventions

Type	Name	Description
PROCEDURE	Anal fistula plug procedure	A fistula probe was used to identify fistula tracts, and internal and external openings. Gentle mechanical debridement was performed with a blunt curette to remove the necrotic tissue with care not to enlarge the track, then hydrogen peroxide and sterile saline were used to repeatedly to irrigate the fistula. The anal fistutla plug was filled into the fistula, and sutured with a figure-of-eight 2-to-0 Vicryl suture to ensure the plug was fixed in the internal opening of the fistula, avoiding the anal fistula plug being extruded. Trimming the plug at the external fistula and the external opening was left open to ensure adequate drainage.

Timeline

• Start date: 2008-08-01
• Primary completion: 2018-11-20
• Completion: 2019-01-31
• First posted: 2020-03-24
• Last updated: 2020-03-24

Locations

1 site across 1 country: China