Evidence mapPaperPMID 42038501Full record

ReviewFrontiers in surgery2026

Pathophysiological mechanisms and clinical management of type 2 diabetes mellitus complicated with anal fistula.

Linhui Li, Shuangxi Zhang

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

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

2 authors.

Linhui LiDepartment of Anorectal Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.
Shuangxi ZhangDepartment of Anorectal Diseases, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The comorbidity of type 2 diabetes mellitus (T2DM) and anal fistula is a prevalent global clinical challenge. Anal fistula is the second most common anorectal disease, with an incidence 1.81-2.01 times higher in diabetic patients than in the general population. Diabetic patients face elevated risks of postoperative infection, delayed healing, and recurrence, closely linked to poor preoperative glycemic control. Current strategies are mostly extrapolated from general population guidelines, failing to address the unique metabolic, immune, and microcirculatory abnormalities in this group, leading to suboptimal outcomes. Methods: This narrative review followed PRISMA 2020 guidelines. We systematically searched PubMed, Embase, Cochrane Library, and CNKI for literature (2018-June 2024) on T2DM complicated with cryptoglandular anal fistula, including clinical studies, high-quality animal experiments, and systematic reviews. Exclusion criteria: type 1/gestational diabetes, Crohn's-related fistulas, case reports ( Results: ① Sphincter-preserving surgeries (LIFT, VAAFT, TROPIS, EAF) reduce incontinence risk; TROPIS achieved 87.6% long-term healing in diabetics, while EAF is well-established for complex fistulas. ② Regenerative therapies (CGF, MSCs) promote healing; autologous MSC-based therapies yielded 68.4%-84.6% healing for complex fistulas, with superior safety/operability vs. allogeneic products. ③ Preoperative HbA1c < 7.0% reduced infection to 8.2%, with perioperative glucose targets of 140-180 mg/dL optimal; once-weekly insulin icodec improved compliance. Conclusions: Individualized multidisciplinary strategies tailored to fistula complexity and glycemic status are essential. Future large-scale RCTs in diabetic patients are needed to validate novel biomaterials and anti-inflammatory agents to optimize outcomes.

Indexed as

anal fistulablood glucose controlpathophysiological mechanismregenerative medicinesphincter-preserving surgerytype 2 diabetes mellitus (T2DM)

Identifiers

PMID42038501
PMCPMC13106358

What Socratic holds

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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 Socratic graph.