Identifying Landmark Factors of Anal Fistulas
- Conditions
- Anal FistulasAnal Fistula
- Interventions
- Procedure: anal fistula surgery
- Registration Number
- NCT06421129
- Lead Sponsor
- Guanlin Liu
- Brief Summary
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.
- Detailed Description
The search function of the electronic medical record system and surgical records were used to screen patients. For the enrolled patients, the electronic medical record system, imaging report query system, medical order system, outpatient follow-up and telephone follow-up were used to collect data Data were entered into Excel 2021 (Microsoft Corp., Redmond, WA, USA) and checked for errors before conducting statistical analyses using R software (version 4.2.2; The R Foundation, Vienna, Austria).
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 326
- Patients diagnosed with an anal fistula through clinical and radiological examinations; surgeries performed by physicians at our hospital who had at least a title of Associate Chief Physician, with operative records completed after surgery; patients with complete clinical data; and patients who completed post-operative outpatient follow-up and agreed to participate in telephone follow-up surveys.
- Patients who were assessed clinically as unable to tolerate surgery; patients who refused surgical treatment; and patients who failed to complete the outpatient follow-up, refused telephone follow-up, or were lost to follow-up.
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description good prognosis anal fistula surgery A good prognosis within 1-year post-surgery was defined as healing of the internal and external openings of the fistula, no recurrence of the fistula, no secondary perianal infection, no symptoms of incontinence, no persistent pain, and the ability of the patient to perform activities independently poor prognosis anal fistula surgery outcomes that did not meet good prognosis criteria indicated a poor prognosis
- Primary Outcome Measures
Name Time Method Age between 1 January 2020 and 1 February 2023 Electronic medical record collection
perianal and perirectal space involvement-Ischioanal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected.The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
History of underlying diseases between 1 January 2020 and 1 February 2023 Hypertension, heart disease and diabetes (Electronic medical record collection)
perianal and perirectal space involvement-perianal subcutaneous space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
fistula traversal through the internal and external sphincters between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the anal sphincters was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
perianal and perirectal space involvement-Intersphincteric anal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
Fistula origin between 1 January 2020 and 1 February 2023 Electronic medical record collection
perianal and perirectal space involvement-Anterior superficial anal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
perianal and perirectal space involvement-Deep anterior anal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
perianal and perirectal space involvement-Submucosal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
history of perianal abscess and fistula between 1 January 2020 and 1 February 2023 Electronic medical record collection
perianal and perirectal space involvement-Posterior superficial anal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
perianal and perirectal space involvement-Deep posterior anal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
perianal and perirectal space involvement-Ischiorectal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
perianal and perirectal space involvement-Pelvirectal space between 1 January 2020 and 1 February 2023 Preoperative imaging examination data, electronic medical and record-surgery records were collected. The extent of anal fistula invasion into the perianal and rectal spaces was assessed based on preoperative imaging examinations and observations made during surgery. All surgical procedures were performed and documented by Associate Chief Physicians in our department. In cases in which the intraoperative findings differed from the imaging results, the findings observed during surgery were considered definitive.
- Secondary Outcome Measures
Name Time Method Smoking history between 1 January 2020 and 1 February 2023 Electronic medical record collection
Alcohol history between 1 January 2020 and 1 February 2023 Electronic medical record collection
Sex between 1 January 2020 and 1 February 2023 Electronic medical record collection
Duration of preoperative symptoms between 1 January 2020 and 1 February 2023 Electronic medical record collection
Anesthesia method between 1 January 2020 and 1 February 2023 Electronic medical record collection
Trial Locations
- Locations (1)
The First Affiliated Hospital of China Medical University
🇨🇳Shenyang, Liaoning, China