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Efficacy Of Minimally Invasive Approach In The Surgical Treatment Of Complex Perianal Fistula

Efficacy Of Minimally Invasive Approach In The Mucosal Advancement Flap Technique For The Surgical Treatment Of Previously Untreated Complex Perianal Fistula

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06484660
Enrollment
40
Registered
2024-07-03
Start date
2021-08-01
Completion date
2026-12-31
Last updated
2026-07-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Fistula Perianal

Keywords

Perianal Fistula, Mucosal Advancement Flap, Minimally Invasive Approach

Brief summary

The goal of this clinical trial is to study whether the minimally invasive approach in the mucosal advancement flap technique for the treatment of complex perianal fistula improves the healing rate compared to non-minimally invasive surgery. The main question it aims to answer is: \- Does the healing rate of patients undergoing minimally invasive approach in the mucosal advancement flap technique improve compared to patients undergoing non-minimally invasive surgery? Researchers will also compare minimally invasive approach in the mucosal advancement flap technique to the non-minimally invasive approach in terms of postoperative pain, fecal incontinence and healing time. Quality of life and global morbidity will also be analyzed. Participants will: * Undergo surgical treatment of complex perianal fistula performed by mucosal advancement flap performed by a minimally invasive technique. * Attend control visits and fill in symptom forms one week, one month, three months and six months after the surgical procedure.

Interventions

PROCEDUREMinimally Invasive Approach In The Mucosal Advancement Flap Technique

Surgical treatment of complex perianal fistula. Less tissue damage. Electrocoagulation source with 75% lower power. Better de-epithelialization of the intra-sphinteric tract. More precise closure of orifice. More consistent mucosal flap

Sponsors

Hospital Son Llatzer
Lead SponsorOTHER
Fundació d'investigació Sanitària de les Illes Balears
CollaboratorOTHER_GOV

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age older than 18. * Present with a complex perianal fistula not surgically treated with curative intention. * Present only one main fistulous tract. * Mucosal advancement flap as the chosen technique for the treatment of the fistula. * Patient has given informed consent to participate in the study.

Exclusion criteria

* Non-cryptoglandular internal fistulous orifice (IFO). * Extrasphincteric fistula. * Coexistence of anal fissure. * Coexistence of hemorrhoids tributary to surgery. * Coexistence of anal or rectal prolapse. * Coexistence of inflammatory bowel disease. * Coexistence of anal or colorrectal cancer.

Design outcomes

Primary

MeasureTime frameDescription
Healing ratesix monthsHealing will be measured if 4 criteria are present: no supuration or pain for more than a week, no open external fistulous orifice, no palpable trajectory, no internal fistulous orifice and no tract or collections in 3D endoanal ultrasound.

Secondary

MeasureTime frameDescription
Postoperative painone weekPain measured in visual analogic scale (VAS). Scale: 0 to 10. Higher scores mean a worse outcome.
Global morbidityone monthClavien Dindo Scale. Scale: 1 to 5. Higher scores mean worse complications.
Quality of life scoresix monthsSF 36 questionnaire. 36 items. Higher scores mean a better quality of life.
Fecal incontinencesix monthsMeasured in Wexner scale. Score 0 to 20. Higher scores mean a worse outcome.

Countries

Spain

Contacts

CONTACTIgnacio Fernández_Hurtado
ifernandez@hsll.es+34871202000

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 8, 2026