Evidence map›Paper›PMID 42149263›Full record

ArticleTechniques in coloproctology2026

Efficacy and safety of freshly collected autologous adipose tissue for complex anal fistulas in non-IBD patients: a prospective cohort study.

N Sorensen, S Buntzen, L Pedersen, O Thorlacius-Ussing

Abstract read
In one paragraph

Article in Techniques in coloproctology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

N SorensenDepartment of Gastrointestinal Surgery, Aalborg University Hospital, Hobrovej 18-22, 9000, Aalborg, Denmark. ns@rn.dk.ORCID http://orcid.org/0000-0002-8477-1667
S BuntzenDepartment of Gastrointestinal Surgery, Aalborg University Hospital, Hobrovej 18-22, 9000, Aalborg, Denmark.
L PedersenDepartment of Gastrointestinal Surgery, Aalborg University Hospital, Hobrovej 18-22, 9000, Aalborg, Denmark.
O Thorlacius-UssingDepartment of Gastrointestinal Surgery, Aalborg University Hospital, Hobrovej 18-22, 9000, Aalborg, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundComplex cryptoglandular anal fistulas present a treatment challenge, with many surgical options associated with recurrence, variable healing rates, and risk of incontinence. Freshly collected autologous adipose tissue (FCAAT) has been proposed as a minimally invasive, one-step alternative. This study aimed to assess clinical healing and clinical improvement and to evaluate the safety of the procedure.

methodsThis prospective cohort study included 31 patients without inflammatory bowel disease (IBD) with complex single-tract cryptoglandular anal fistulas treated with FCAAT between May 2019 and December 2023 and followed until August 2024. The surgical procedure involved liposuction, processing of adipose tissue, closure of the internal opening, and local injection along the fistula tract in a one-step procedure. Primary outcomes were clinical healing and clinical improvement; secondary outcomes were adverse events.

resultsThe patient cohort presented with advanced disease. Median disease duration was 20 months, and one-third of patients had undergone previous attempts at surgical closure. Clinical healing was achieved in 23 patients (74%), with an additional four patients (13%) demonstrating clinical improvement. Five of 27 responders (19%) healed more than 3 months post-procedure. Common adverse events included proctalgia in 8 patients (22%), donor site pain 5 (14%), and minor graft site hematomas in 4 (11%). One Clavien-Dindo IIIa event (graft site bleeding) was managed with a single suture; all other complications were minor and resolved conservatively.

conclusionFCAAT is a safe and effective one-step treatment for complex anal fistulas in non-IBD patients, offering a high healing rate with predominantly minor complications. A delayed effect was observed in some patients.

Indexed as

Adipose TissueRectal FistulaAdultAgedFemaleHumansLipectomyMaleMiddle AgedProspective StudiesTransplantation, AutologousTreatment OutcomeWound HealingAdipose tissue/transplantationAnal fistula/surgeryAutologous stem cellsFecal incontinence/preventionProspective studies

Identifiers

PMID42149263
PMCPMC13350112

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.