Evidence map›Paper›PMID 28251361›Full record

SynthesisLangenbeck's archives of surgery2017

German S3 guidelines: anal abscess and fistula (second revised version).

Andreas Ommer, Alexander Herold, Eugen Berg, Alois Fürst, Stefan Post, Reinhard Ruppert, Thomas Schiedeck, Oliver Schwandner, Bernhard Strittmatter

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Langenbeck's archives of surgery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
9.7field-weighted citation impact, top 1% of its field
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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 119 citations in OpenAlex.

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  9. Anal fistulas: do classification systems predict surgical outcomes?Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery · 2026
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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

9 authors at 8 institutions in 1 country.

Andreas OmmerEnd- und Dickdarm-Zentrum Essen, Rüttenscheider Strasse 66, 45130, Essen, Germany. aommer@online.de.ORCID http://orcid.org/0000-0002-8875-8777
Alexander HeroldDeutsches End- und Dickdarmzentrum, Mannheim, Germany.
Eugen BergProsper-Hospital Recklinghausen, Recklinghausen, Germany.
Alois FürstCaritas-Krankenhaus Regensburg, Regensburg, Germany.
Stefan PostUniversitätsklinikum Mannheim, Mannheim, Germany.
Reinhard RuppertKlinikum Neuperlach, Munich, Germany.
Thomas SchiedeckKlinikum Ludwigsburg, Ludwigsburg, Germany.
Oliver SchwandnerKrankenhaus Barmherzige Brüder, Regensburg, Germany.
Bernhard StrittmatterPraxisklinik, 2000, Freiburg, Germany.
Caritas-Krankenhaus St. Josef · DEHeidelberg University · DEKlinikum Ludwigsburg · DEKrankenhaus Barmherzige Brüder · DEMünchen Klinik Neuperlach · DEOrthopädische Praxis · DEProsper Hospital · DERWE (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe incidence of anal abscess and fistula is relatively high, and the condition is most common in young men.

methodsThis is a revised version of the German S3 guidelines first published in 2011. It is based on a systematic review of pertinent literature.

resultsCryptoglandular abscesses and fistulas usually originate in the proctodeal glands of the intersphincteric space. Classification depends on their relation to the anal sphincter. Patient history and clinical examination are diagnostically sufficient in order to establish the indication for surgery. Further examinations (endosonography, MRI) should be considered in complex abscesses or fistulas. The goal of surgery for an abscess is thorough drainage of the focus of infection while preserving the sphincter muscles. The risk of abscess recurrence or secondary fistula formation is low overall. However, they may result from insufficient drainage. Primary fistulotomy should only be performed in case of superficial fistulas. Moreover, it should be done by experienced surgeons. In case of unclear findings or high fistulas, repair should take place in a second procedure. Anal fistulas can be treated only by surgical intervention with one of the following operations: laying open, seton drainage, plastic surgical reconstruction with suturing of the sphincter (flap, sphincter repair, LIFT), and occlusion with biomaterials. Only superficial fistulas should be laid open. The risk of postoperative incontinence is directly related to the thickness of the sphincter muscle that is divided. All high anal fistulas should be treated with a sphincter-saving procedure. The various plastic surgical reconstructive procedures all yield roughly the same results. Occlusion with biomaterial results in lower cure rate.

conclusionIn this revision of the German S3 guidelines, instructions for diagnosis and treatment of anal abscess and fistula are described based on a review of current literature.

Indexed as

AbscessAnus DiseasesGermanyHumansPractice Guidelines as TopicRectal FistulaAnal abscessAnal fistulaDiagnosticFecal incontinenceFistula-in-anoOperative treatment

Identifiers

PMID28251361
OpenAlexW2594853742

What OpenQuestion holds

Textmetadata
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.