Treatment of Anal Fistulas Advancement Flap

NCT ID: NCT01042821

Last Updated: 2010-01-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2005-05-31

Study Completion Date

2008-05-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This study comprises a prospective study of 40 patients with transphincteric anal fistula. The patients were classified into two groups: Group I: Fistulectomy, closure of internal sphincter and rectal advancement flap includes mucosa, submucosa, and circular muscle layer sutured 1cm below the level of internal opening. Group II: The same as group one but the flap includes only mucosa and submucosa.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

This study comprises a prospective study of 40 patients with transphincteric anal fistula. They were referred to our colorectal surgery unit, Mansoura University Hospital during the period from May 2005 to May 2008. Patients with acute sepsis, specific cause of fistula, strictured anorectum, and any degree of incontinence were excluded from the study.

All patient were evaluated by digital examination, procto-sigmoidoscopy, fistulography and MRI fistulography without contrast media, using a 1.5 Tesla super conducting magnet (Magnetom Symphony MRease VA12 Siemens medical system), (either STIR or SPIR in addition to T1 weighted or T2 weighted sequences). Axial, coronal and sometimes sagittal planes were used. Preoperative assessment of anal sphincter dysfunction was done by conventional manometry using a standard low compliance water perfusions system and eight-channels catheters with pressure transducer connected to 5.5 mm manometric probe with spirally located ports at 0.5cm interval, which measured along the length of the anal canal, as well as inflatable rectal balloon. The protocol of performance is stationary pull through technique with recording the functional length of the anal canal (FL), mean maximum resting pressure in the anal canal (MRP), mean maximum squeeze pressure in the anal canal (MSP). Pressure was recorded using a computerized recording device (MMS ;Holland) which included menu-driven software to aid with data acquisition. Data were analyzed with the use of a complied software package that automatically produced numeric reports and graphs.

The patients were then classified into 2 groups. After carefully explaining the purpose of the study, an informed consent was taken from every patient. Group I: Fistulectomy, closure of internal sphincter with loose vicryl 3(0) suture and rectal advancement flap (the length 5cm of the flap is twice its width) includes mucosa, submucosa, circular muscle layer sutured 1cm below the level of internal opening. Group II: The same as group one but the flap includes only mucosa and submucosa.

Surgical technique:

Fleet enema was used for preoperative bowel preparation in all cases. Operation was done under general anesthesia in the lithotomy position. Prophylactic antibiotics were used with ciprofloxacin 500 mg and metronidazole 500 mg preoperatively and twice daily for 5 days. Examination under anaesthesia (EUA) was firstly performed and the extent of the disease was established by cannulating the fistulas with probes and by laying open all primary tracts, extensions, and abscesses. All the incisions and dissections were made by electrocautery. The standard procedure was to perform core fistulectomy and traversing the external sphincter until the internal sphincter was exposed the track was then transected. The crypt-bearing tissue around the internal opening of the fistula is excised, if there is difficulty in excising the main tract, the granulation tissue of the remaining tract is scraped with a curette. Advancement flap was constructed in both group.

1. Group I: - The flap comprised mucosa, submucosa and circular muscle fibers. It is raised from the dentate line and mobilized 4-6 cm cephaled and advanced to the new dendentate line (1 cm below the dentate line) and sutured with absorbable sutures (vicryl; ethicone 3/0). Also the defect is closed with absorbable sutures.
2. Group II: - The flap comprised mucosa, submucosa only.

Rectal pack was removed after 24 hours. The patients were allowed to drink freely for 5 days, then normal diet and laxatives. The external fistulectomy wound was dressed daily. Histopatho;ogical examination of all excised fistulous tract was done.

1\. Follow up of our patients had been done for about 12 months with clinical assessment of the patients as regard. Incidence of any postoperative complications as bleeding, haematoma, ecchymosis, and disruption. Incidence of any degree of postoperative incontinence according to Cliveland clinic incontinence Score (Rockwood et al., 1999). Recurrence was defined as a discharge or abscess arising in the same area or by obvious evidence of fistulation.

Postoperative assessment of physioanatomical changes in the anal sphincter using anal manometry: 6 months post-operative after wound healing to measure MRP \& MSP.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Anal Fistula

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

partial rectal wall advancement flap

The flap comprised mucosa, submucosa and circular muscle fibers. It is raised from the dentate line and mobilized 4-6 cm cephaled and advanced to the new dendentate line (1 cm below the dentate line) and sutured with absorbable sutures (vicryl; ethicone 3/0). Also the defect is closed with absorbable sutures.

Group Type ACTIVE_COMPARATOR

partial rectal wall advancement flap

Intervention Type PROCEDURE

The flap comprised mucosa, submucosa and circular muscle fibers. It is raised from the dentate line and mobilized 4-6 cm cephaled and advanced to the new dendentate line (1 cm below the dentate line) and sutured with absorbable sutures (vicryl; ethicone 3/0). Also the defect is closed with absorbable sutures.

Group 2

The flap comprised mucosa, submucosa only

Group Type ACTIVE_COMPARATOR

mucosal advancement flap

Intervention Type PROCEDURE

Fistulectomy, closure of internal sphincter and rectal advancement flap includes mucosa and submucosal layer sutured 1cm below the level of internal opening

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

partial rectal wall advancement flap

The flap comprised mucosa, submucosa and circular muscle fibers. It is raised from the dentate line and mobilized 4-6 cm cephaled and advanced to the new dendentate line (1 cm below the dentate line) and sutured with absorbable sutures (vicryl; ethicone 3/0). Also the defect is closed with absorbable sutures.

Intervention Type PROCEDURE

mucosal advancement flap

Fistulectomy, closure of internal sphincter and rectal advancement flap includes mucosa and submucosal layer sutured 1cm below the level of internal opening

Intervention Type PROCEDURE

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Group 1 advancement flap

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patients with transphincteric anal fistula

Exclusion Criteria

* Patients with acute sepsis, specific cause of fistula, strictured anorectum, and any degree of incontinence
Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Mansoura University

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Mansoura university hospital

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Wael Khafagy, MD

Role: PRINCIPAL_INVESTIGATOR

Mansoura University Hospital

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Mansoura University Hospital

Al Mansurah, , Egypt

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Egypt

References

Explore related publications, articles, or registry entries linked to this study.

Ortiz H, Marzo J, Ciga MA, Oteiza F, Armendariz P, de Miguel M. Randomized clinical trial of anal fistula plug versus endorectal advancement flap for the treatment of high cryptoglandular fistula in ano. Br J Surg. 2009 Jun;96(6):608-12. doi: 10.1002/bjs.6613.

Reference Type RESULT
PMID: 19402190 (View on PubMed)

Dixon M, Root J, Grant S, Stamos MJ. Endorectal flap advancement repair is an effective treatment for selected patients with anorectal fistulas. Am Surg. 2004 Oct;70(10):925-7.

Reference Type RESULT
PMID: 15529853 (View on PubMed)

Christoforidis D, Pieh MC, Madoff RD, Mellgren AF. Treatment of transsphincteric anal fistulas by endorectal advancement flap or collagen fistula plug: a comparative study. Dis Colon Rectum. 2009 Jan;52(1):18-22. doi: 10.1007/DCR.0b013e31819756ac.

Reference Type RESULT
PMID: 19273951 (View on PubMed)

Chung W, Kazemi P, Ko D, Sun C, Brown CJ, Raval M, Phang T. Anal fistula plug and fibrin glue versus conventional treatment in repair of complex anal fistulas. Am J Surg. 2009 May;197(5):604-8. doi: 10.1016/j.amjsurg.2008.12.013.

Reference Type RESULT
PMID: 19393353 (View on PubMed)

Dubsky PC, Stift A, Friedl J, Teleky B, Herbst F. Endorectal advancement flaps in the treatment of high anal fistula of cryptoglandular origin: full-thickness vs. mucosal-rectum flaps. Dis Colon Rectum. 2008 Jun;51(6):852-7. doi: 10.1007/s10350-008-9242-3. Epub 2008 Mar 4.

Reference Type RESULT
PMID: 18317841 (View on PubMed)

Related Links

Access external resources that provide additional context or updates about the study.

http://www.mans.eun.eg/

Mansoura university hospital

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

anal fistula

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

PRP Use in Treatment of Fistula Ano
NCT04187651 ACTIVE_NOT_RECRUITING NA
Platelet- Rich Plasma Injection
NCT06887166 COMPLETED NA