The goal of this observational study is to understand the effects of anatomical factors, etiology, and complexity of anal fistula on the prognosis of patients undergoing anal fistula surgery within one year post-operation.The main question it aims to answer is: Which factors are indicative of the prognosis of anal fistula surgery? Which factors are landmark factors of anal fistulas? Participants who have already undergone anal fistula surgery at our hospital will receive outpatient and telephone follow-up to assess their prognosis.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
history of perianal abscess and fistula
Timeframe: between 1 January 2020 and 1 February 2023
Age
Timeframe: between 1 January 2020 and 1 February 2023
History of underlying diseases
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-perianal subcutaneous space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Posterior superficial anal space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Deep posterior anal space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Anterior superficial anal space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Deep anterior anal space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Submucosal space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Intersphincteric anal space
Timeframe: between 1 January 2020 and 1 February 2023
Fistula origin
Timeframe: between 1 January 2020 and 1 February 2023
fistula traversal through the internal and external sphincters
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Ischioanal space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Ischiorectal space
Timeframe: between 1 January 2020 and 1 February 2023
perianal and perirectal space involvement-Pelvirectal space
Timeframe: between 1 January 2020 and 1 February 2023