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Modified LIFT Versus Standard LIFT for Transsphincteric Anal Fistula

21. maj 2026 opdateret af: Tugberk Tok

Modified LIFT Via a Lateral Approach Versus Standard LIFT for Transsphincteric Anal Fistula: A Prospective Randomized Study

This study evaluated two sphincter-preserving surgical techniques for transsphincteric anal fistula: standard ligation of the intersphincteric fistula tract (LIFT) and modified LIFT via a lateral approach. Adult patients with MRI-confirmed transsphincteric anal fistula were randomly assigned to one of the two procedures. The main outcome was wound healing time. Other outcomes included early recurrence or persistence of the fistula, postoperative pain, and fecal continence during 12 weeks of follow-up.

Studieoversigt

Detaljeret beskrivelse

This was a prospective, single-center, randomized, parallel-group comparative surgical study conducted at the Department of General Surgery, Kayseri City Training and Research Hospital, Türkiye. The study included adult patients aged 18 to 75 years with magnetic resonance imaging-confirmed transsphincteric anal fistula who met the eligibility criteria and provided written informed consent.

Participants were randomly assigned in a 1:1 ratio to undergo either standard ligation of the intersphincteric fistula tract (LIFT) or modified LIFT via a lateral approach. All patients were evaluated by the same surgical team, and postoperative follow-up was performed at weeks 1, 4, 8, and 12.

The study compared early clinical outcomes between the two procedures, including wound healing time, early recurrence or persistence, postoperative pain, and fecal continence. The study was approved by the Kayseri City Hospital Clinical Research Ethics Committee before patient enrollment.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

40

Fase

  • Ikke anvendelig

Kontakter og lokationer

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Studiesteder

    • Kayseri
      • Kayseri, Kayseri, Tyrkiet (Türkiye), 38300
        • Kayseri City Training and Research Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Age 18 to 75 years
  • Diagnosis of transsphincteric anal fistula confirmed by pelvic magnetic resonance imaging
  • Presence of clinical findings consistent with perianal fistula, such as perianal discharge, palpable swelling, or history of perianal abscess drainage
  • Ability and willingness to provide written informed consent
  • Eligibility for surgical treatment with either standard LIFT or modified LIFT via a lateral approach

Exclusion Criteria:

  • Previous definitive surgery for perianal fistula other than abscess drainage
  • Perianal Crohn disease
  • Horseshoe fistula
  • Colorectal cancer
  • Malnutrition
  • Recurrent anal fistula
  • Previous radiotherapy or chemotherapy
  • Chronic medication use that could impair wound healing, such as steroids or colchicine
  • Refusal or inability to provide written informed consent

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Modified LIFT via a Lateral Approach
Participants assigned to this arm underwent modified LIFT via a lateral approach. The fistula tract was approached from the external opening, dissected and mobilized toward the internal sphincter level, excised at this level, and the remaining defect and internal opening were closed while preserving sphincter integrity.
Modified LIFT via a lateral approach was performed. The fistula tract was approached from the external opening, dissected and mobilized toward the internal sphincter level, excised at that level, and the remaining defect and internal opening were closed.
Aktiv komparator: Standard LIFT
Participants assigned to this arm underwent standard ligation of the intersphincteric fistula tract (LIFT). The intersphincteric plane was approached, and the fistula tract was identified, ligated, and divided according to the standard LIFT technique.
Standard ligation of the intersphincteric fistula tract was performed. The intersphincteric plane was approached, and the fistula tract was identified, ligated, and divided according to the standard LIFT technique.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Wound Healing Time
Tidsramme: Up to 12 weeks after surgery
Time from surgery to complete clinical epithelialization of the perianal wound without discharge.
Up to 12 weeks after surgery

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Early Recurrence or Persistence of Anal Fistula
Tidsramme: Postoperative weeks 1, 4, 8, and 12
Presence of persistent or recurrent fistula-related symptoms or clinical findings during postoperative follow-up.
Postoperative weeks 1, 4, 8, and 12
Postoperative Pain Assessed Using the Visual Analog Scale
Tidsramme: Postoperative weeks 1, 4, 8, and 12
Postoperative pain will be assessed using the Visual Analog Scale. The score ranges from 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain. Higher scores indicate worse pain.
Postoperative weeks 1, 4, 8, and 12
Fecal Continence Assessed Using the Wexner Fecal Incontinence Score
Tidsramme: Postoperative weeks 1, 4, 8, and 12
Fecal continence will be assessed using the Wexner Fecal Incontinence Score. The score ranges from 0 to 20, where 0 indicates perfect continence and 20 indicates complete fecal incontinence. Higher scores indicate worse continence.
Postoperative weeks 1, 4, 8, and 12

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Ledende efterforsker: Tuğberk Tok, MD, Kayseri City Training and Research Hospital
  • Studieleder: Yusuf Sevim, MD, Kayseri City Training and Research Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. januar 2024

Primær færdiggørelse (Faktiske)

1. maj 2024

Studieafslutning (Faktiske)

30. august 2024

Datoer for studieregistrering

Først indsendt

18. maj 2026

Først indsendt, der opfyldte QC-kriterier

18. maj 2026

Først opslået (Faktiske)

22. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

26. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

21. maj 2026

Sidst verificeret

1. maj 2026

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

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INGEN

IPD-planbeskrivelse

Individual participant data will not be publicly shared due to ethical, institutional, and privacy restrictions. De-identified data may be available from the corresponding investigator upon reasonable request, subject to institutional approval.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Kliniske forsøg med Transsfinkterisk anal fistel

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