Evidence map›Paper›PMID 40485051›Full record

ArticleColorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland2025

Impact of perineal healing on oncological outcome following surgery for squamous cell carcinoma of the anus.

Naseer Baloch, A Kiasat, Mikael Machado, Jonas Nygren, Per J Nilsson

Abstract read
In one paragraph

Article in Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Surgery in squamous cell carcinoma of the anus.ESMO gastrointestinal oncology · 2026
    Review
  2. Impact of perineal healing on oncological outcome following surgery for squamous cell carcinoma of the anus.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2025
    Article
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

5 authors.

Naseer BalochDivision of Coloproctology, Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden.ORCID https://orcid.org/0009-0002-6494-6762
A KiasatDivision of Coloproctology, Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden.
Mikael MachadoDepartment of Clinical Sciences at Danderyds Hospital, Karolinska Institutet, Stockholm, Sweden.
Jonas NygrenDepartment of Clinical Sciences at Danderyds Hospital, Karolinska Institutet, Stockholm, Sweden.
Per J NilssonDivision of Coloproctology, Department of Pelvic Cancer, Karolinska University Hospital, Stockholm, Sweden.ORCID https://orcid.org/0000-0003-0438-5887

Funding

Grant support from the foundation for surgical cooperation, Stockholm, Sweden
6 · The paper itself

Abstract

aimPerineal wound complications are common following salvage surgery in anal cancer. It is not fully known if healing disorders have an impact on oncological outcomes. The aim of this study is to investigate survival in relation to perineal healing status at 3 months after surgery.

methodA retrospective cohort study including all patients with squamous cell anal cancer operated on between January 2005 and June 2020 in Stockholm, Sweden was undertaken. Data collection was by registers and supplemented by chart review. All patients were followed until death or 31 December 2020. Perineal healing status at 3 months was used as a landmark. Association between healing status and recurrence free (RFS) and overall survival (OS) were evaluated using the Cox proportional hazard regression model.

resultsThe final study population comprised 122 patients (78 women). At the landmark date, 73 patients (60%) had a healed perineum and 49 (40%) an unhealed perineum. The R0 resection rate was 92% (112 patients). Follow-up ranged between 6 and 185 months. Five-year OS and RFS for all patients was 62% and 56%, respectively. OS was 71% vs. 48% and RFS was 65% vs. 43% for patients with healed versus unhealed wound at the landmark date, respectively. Healing status was significantly associated with OS in univariable analysis (HR 0.52, p = 0.021) and RFS showed a trend (p = 0.054) in the same direction. In a multivariable analysis adjusting for age, gender and T-stage a statistically significant difference was found concerning OS (HR = 0.47, 95% CI 0.26-0.85) and a trend in the same direction for RFS (HR = 0.60, 95% CI 0.34-1.06).

conclusionThe hypothesis that an unhealed perineal wound following salvage surgery for patients with squamous cell anal carcinoma not only constitutes a surgical but also an oncological problem is strengthened by this study.

Indexed as

Anus NeoplasmsCarcinoma, Squamous CellPerineumPostoperative ComplicationsWound HealingAdultAgedAged, 80 and overFemaleHumansMaleMiddle AgedNeoplasm Recurrence, LocalProctectomyProportional Hazards ModelsRetrospective Studiesanal cancercohort studyrecurrencesurgerysurvival

Identifiers

PMID40485051
PMCPMC12146502

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.