Evidence map›Paper›PMID 41180805›Full record

ArticleJournal of the anus, rectum and colon2025

Effects of Reduction of Early Postoperative Anal Pain following Hemorrhoid Surgery with Epidural Anesthesia: A Pilot Study.

Ryota Koyama, Gentaro Ishiyama, Akihiko Nishio, Takuro Kyuno, Aya Sato, Emi Akizuki, Yuji Ishiyama

Abstract read
In one paragraph

Article in Journal of the anus, rectum and colon, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

7 authors.

Ryota KoyamaDepartment of Anorectal Surgery, Sapporo Ishiyama Hospital, Sapporo, Japan.
Gentaro IshiyamaDepartment of Anorectal Surgery, Sapporo Ishiyama Hospital, Sapporo, Japan.
Akihiko NishioDepartment of Anorectal Surgery, Sapporo Ishiyama Hospital, Sapporo, Japan.
Takuro KyunoDepartment of Anorectal Surgery, Sapporo Ishiyama Hospital, Sapporo, Japan.
Aya SatoDepartment of Anorectal Surgery, Sapporo Ishiyama Hospital, Sapporo, Japan.
Emi AkizukiDepartment of Anorectal Surgery, Sapporo Ishiyama Hospital, Sapporo, Japan.
Yuji IshiyamaDepartment of Anorectal Surgery, Sapporo Ishiyama Hospital, Sapporo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: Hemorrhoids commonly occur worldwide, and surgical intervention is required in severe cases. However, a method for postoperative pain control is yet to be established. In this study, we developed a caudal epidural anesthesia tube placement method and demonstrated its meaningful outcomes. Methods: We postoperatively analyzed 85 patients who underwent hemorrhoid surgery at the Sapporo Ishiyama Hospital. Using a computer-generated method, patients were assigned to the caudal epidural tube placement group (E group; n = 47) or without tube placement group (N group; n = 38) and compared using a numeric rating scale (NRS). Results: Goligher classification grade ≥3 severe hemorrhoids were found in 93% of patients in the study. Anal cushion lifting (ACL), a surgical technique requiring no hemorrhoid resection with or without excision (e.g., Milligan-Morgan hemorrhoidectomy), was used. Swelling was observed in 15% of overall patients, but it was controlled with conservative treatment. Postoperative bleeding occurred in one patient in the N group. The mean duration of caudal epidural tube placement was 33.7 h, and there were no adverse events such as infection. The NRS results showed that the E group had a significantly lower mean NRS score at postoperative 24 and 48 h compared with the N group. No apparent rebound pain after tube removal occurred, and the transition to an oral analgesic was smooth and successful. Conclusions: Our novel method may contribute to the pain management during early periods following hemorrhoidectomy.

Indexed as

anorectal surgerycaudal epidural anesthesiacaudal epidural block

Identifiers

PMID41180805
PMCPMC12574802

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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 OpenQuestion graph.