Anal Fistula, Anal Fistulas
Conditions
Keywords
anal fistula, perianal and rectal spaces, surgery
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).
Interventions
PROCEDUREanal fistula surgery
anal fistula surgery consists of;Fistulotomy and Fistulotomy with seton placement
Sponsors
Guanlin Liu
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* 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.
Exclusion criteria
* 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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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. |
| 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 |
| 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-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. |
| 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. |
| history of perianal abscess and fistula | between 1 January 2020 and 1 February 2023 | Electronic medical record collection |
| Age | between 1 January 2020 and 1 February 2023 | Electronic medical record collection |
| 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. |
| 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-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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Duration of preoperative symptoms | between 1 January 2020 and 1 February 2023 | Electronic medical record collection |
| Smoking history | 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 |
| 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 |
Countries
China
Outcome results
None listed