ArticleScientific reports2025
Ultrasound assessment of low type intersphincteric perianal fistulas in Yemen.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- Perianal Fistulae Medical Imaging Maps: A Pictorial Diagnostic Review.Diagnostics (Basel, Switzerland) · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A perianal fistula is an abnormal tract connection between the anal canal and the surrounding skin of the perineum, with underdiagnosis in specific populations. The aim of this study was to diagnose and describe the intersphincteric perianal fistulas (number, site, number of internal and external openings, and length) using transcutaneous ultrasound (TCUS) imaging. This was a retrospective study included patients who underwent TCUS for clinically diagnosed of low-type intersphincteric perianal fistulas during April 2017-December 2022. A total of 581 perianal fistulas from 549 patients were included in this study. The mean age of the patients was 36.14 ± 13.37-year (range from 1 to 80 years). The majority were in the young adult age group, from 21 to 40 years (56.47%), 84% were male and 16% female. The patients predominantly had one fistula (94.35%) with one external opening (EO) (79.10%), and one internal opening (IO) (99.65%). The left quadrants (1-6 O'clock around the anus) were the most common sites of the EO (60.5%). The IO was 11-20 mm above the anal verge in 58.5% of fistulas and ≤ 10 mm in 27.4%. The length of the fistular tract was 21-30 mm in 30.1%, 11-20 mm in 27.4%, and 31-40 mm in 25.0%. The perianal fistulas in the left posterior quadrant had a significantly shorter fistular tract compared to those in the other three quadrants. There was no significant variation in the IO distance from anal verge between fistulas in the different anal quadrants. The solitary tract, IO and EO with the short length, and small distance of IO from the anal verge improve surgical outcomes and decrease complications and recurrence of the perianal fistulas. TCUS, when performed by an experienced operator, can be effectively utilized for the diagnosis and surgical planning of low-type perianal fistulas, with the offer of that it is a non-invasive, well-tolerated, and radiation-free imaging method.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.