Surgical Treatment of High Perianal Fistulas

NCT ID: NCT01997645

Last Updated: 2013-11-28

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

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

140 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-11-30

Brief Summary

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Perianal fistula is a chronic phase of anorectal infection that occurs predominantly in the third and fourth decade of life. According to Parks classification fistulas have been divided into intersphincteric, transsphincteric, suprasphincteric and extrasphincteric. Simple fistulotomy can be performed with satisfactory outcomes in low fistula tracts but in high (transsphincteric) fistulas it may affect anal continence seriously.

Therefore sphincter preserving procedures should be preferred in these cases. Rectal advancement mucosal flap (RAF) is one of the methods used in surgical fistula eradication with high success rate in cryptoglandular fistulas. However, this technique is technically demanding and results can be expert depended with wide spread of healing rates (24-100%) in individual studies as referred in recent systematic review.

Ligation of the intersphincteric fistula tract (LIFT) has been presented in 2007 as a simple sphincter preserving technique. The success rate varies between 40-95% with low overall incontinence rate (6%).

The aim of the study is to compare the efficacy of the LIFT and RAF procedure for treatment of high perianal fistulas.

Detailed Description

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Conditions

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Anal Fistula Rectal Fistula

Keywords

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Anal fistula Rectal fistula Intersphincteric fistula Perianal fistula

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Rectal advanced mucosal flap

Procedure will be performed in general anesthesia without mechanical bowel preparation. Antibiotic prophylaxis (Metronidazole 1g) will be applied intravenously 60 minutes prior the surgery.

In RAF procedure, internal opening will identified and after infiltration with saline-adrenalin solution (1/100000) the mucosal flap will be mobilized proximally. The external tract and internal opening will be excised and the defect will be sutured. After that, the flap will be advanced from both sides with absorbable suture and overlapped over the internal opening. External openings will be left open.

Group Type ACTIVE_COMPARATOR

RAF

Intervention Type PROCEDURE

Ligation of intersphincteric fistula tract

Procedure will be performed in general anesthesia without mechanical bowel preparation. Antibiotic prophylaxis (Metronidazole 1g) will be applied intravenously 60 minutes prior the surgery.

Before LIFT procedure the fistula tract will be identified with small probe. The intersphincteric space will be reached by dissection from small (2-4cm) incision. The fistula tract will be divided and ligated on both sides with Polydioxanone (PDS) suture. The external and internal openings will be left open to drain.

Group Type ACTIVE_COMPARATOR

LIFT

Intervention Type PROCEDURE

Interventions

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LIFT

Intervention Type PROCEDURE

RAF

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Patients aged 18 years old or older
* Diagnosis of simple intersphincteric or transsphincteric fistula
* Patients able to comply with the study protocol as per investigator criteria
* Signed and dated informed consent by the patient

Exclusion Criteria

* Recurrent anal fistula
* Suprasphincteric, low subcutaneous fistula
* Multiple fistulas
* Posttraumatic fistula
* Perianal hidradenitis
* Fistula arises from other than cryptoglandular origin
* Previous anal surgery except of abscess
* Inflammatory Bowel Disease
* History of fecal incontinence
* Rectal prolapse
* Malignant disease and life expectancy of less than 1 year, or chemotherapy and radiotherapy less than six months prior enrolment
* HIV infection
* Pregnancy
* Participation in another clinical trial less than one month prior to enrolment, or involvement in another trial
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital Hradec Kralove

OTHER

Sponsor Role lead

Responsible Party

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Otakar Sotona

MD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Július Örhalmi, MD

Role: PRINCIPAL_INVESTIGATOR

University Hospital Hradec Kralove

Zuzana Šerclová, MD

Role: PRINCIPAL_INVESTIGATOR

Central MIlitary Hospital Prague

Karel Klos, MD

Role: PRINCIPAL_INVESTIGATOR

District Hospital Nový Jičín

Locations

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Department of Surgery, Charles University, Faculty of Medicine and University Hospital

Hradec Králové, , Czechia

Site Status RECRUITING

Departement of Surgery, District Hospital

Nový Jičín, , Czechia

Site Status RECRUITING

Departement of Surgery, Military University Hospital

Prague, , Czechia

Site Status RECRUITING

Countries

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Czechia

Central Contacts

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Július Örhalmi, MD

Role: CONTACT

Phone: +420606506391

Email: [email protected]

Facility Contacts

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Július Örhalmi, MD

Role: primary

Karel Klos, MD

Role: primary

Zuzana Šerclová, MD

Role: primary

References

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Marks CG, Ritchie JK. Anal fistulas at St Mark's Hospital. Br J Surg. 1977 Feb;64(2):84-91. doi: 10.1002/bjs.1800640203.

Reference Type BACKGROUND
PMID: 890252 (View on PubMed)

Parks AG, Gordon PH, Hardcastle JD. A classification of fistula-in-ano. Br J Surg. 1976 Jan;63(1):1-12. doi: 10.1002/bjs.1800630102.

Reference Type BACKGROUND
PMID: 1267867 (View on PubMed)

Malik AI, Nelson RL. Surgical management of anal fistulae: a systematic review. Colorectal Dis. 2008 Jun;10(5):420-30. doi: 10.1111/j.1463-1318.2008.01483.x.

Reference Type BACKGROUND
PMID: 18479308 (View on PubMed)

Garcia-Aguilar J, Belmonte C, Wong DW, Goldberg SM, Madoff RD. Cutting seton versus two-stage seton fistulotomy in the surgical management of high anal fistula. Br J Surg. 1998 Feb;85(2):243-5. doi: 10.1046/j.1365-2168.1998.02877.x.

Reference Type BACKGROUND
PMID: 9501826 (View on PubMed)

Soltani A, Kaiser AM. Endorectal advancement flap for cryptoglandular or Crohn's fistula-in-ano. Dis Colon Rectum. 2010 Apr;53(4):486-95. doi: 10.1007/DCR.0b013e3181ce8b01.

Reference Type BACKGROUND
PMID: 20305451 (View on PubMed)

Rojanasakul A, Pattanaarun J, Sahakitrungruang C, Tantiphlachiva K. Total anal sphincter saving technique for fistula-in-ano; the ligation of intersphincteric fistula tract. J Med Assoc Thai. 2007 Mar;90(3):581-6.

Reference Type BACKGROUND
PMID: 17427539 (View on PubMed)

Yassin NA, Hammond TM, Lunniss PJ, Phillips RK. Ligation of the intersphincteric fistula tract in the management of anal fistula. A systematic review. Colorectal Dis. 2013 May;15(5):527-35. doi: 10.1111/codi.12224.

Reference Type BACKGROUND
PMID: 23551996 (View on PubMed)

Sandborn WJ, Fazio VW, Feagan BG, Hanauer SB; American Gastroenterological Association Clinical Practice Committee. AGA technical review on perianal Crohn's disease. Gastroenterology. 2003 Nov;125(5):1508-30. doi: 10.1016/j.gastro.2003.08.025. No abstract available.

Reference Type BACKGROUND
PMID: 14598268 (View on PubMed)

Jorge JM, Wexner SD. Etiology and management of fecal incontinence. Dis Colon Rectum. 1993 Jan;36(1):77-97. doi: 10.1007/BF02050307.

Reference Type BACKGROUND
PMID: 8416784 (View on PubMed)

Dindo D, Demartines N, Clavien PA. Classification of surgical complications: a new proposal with evaluation in a cohort of 6336 patients and results of a survey. Ann Surg. 2004 Aug;240(2):205-13. doi: 10.1097/01.sla.0000133083.54934.ae.

Reference Type BACKGROUND
PMID: 15273542 (View on PubMed)

Other Identifiers

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FN HK CP 2013

Identifier Type: -

Identifier Source: org_study_id