Evidence map›Paper›PMID 41526421›Full record

Trial reportScientific reports2026

The efficacy and safety of 5% lidocaine patch for postoperative pain in unilateral inguinal herniorrhaphy: prospective randomized controlled pilot study.

Bon-Wook Koo, Jung-Hyun Bang, In-Sun Park, Jin-Hee Kim, Hong-Min Ahn, Heung-Kwon Oh, Pyung-Bok Lee

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Bon-Wook KooDepartment of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 137-82 Gumi-ro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, South Korea.
Jung-Hyun BangDepartment of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 137-82 Gumi-ro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, South Korea.
In-Sun ParkDepartment of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 137-82 Gumi-ro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, South Korea.
Jin-Hee KimDepartment of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 137-82 Gumi-ro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, South Korea.
Hong-Min AhnDepartment of Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea.
Heung-Kwon OhDepartment of Surgery, Seoul National University Bundang Hospital, Seongnam, South Korea.
Pyung-Bok LeeDepartment of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, 137-82 Gumi-ro, Bundang-gu, Seongnam, Gyeonggi-do, 463-707, South Korea. 01202@snubh.org.

Funding

SK Chemical Cooperation 02-2014-036
6 · The paper itself

Abstract

Postoperative pain is a major concern in day surgery (DS), particularly after open inguinal herniorrhaphy. Reducing pain is important to decrease hospital stays and promote faster recovery. This study evaluated the lidocaine patch’s efficacy in managing acute postoperative pain following unilateral inguinal herniorrhaphy. In a randomized, double-blind trial, 32 patients were assigned to either the lidocaine or placebo patch groups, and pain was assessed using a visual analogue scale (VAS) during rest, movement, and coughing. The lidocaine group reported significantly lower pain during coughing at discharge compared to the placebo group (3 ± 1.7 vs. 4.6 ± 2.7; p = 0.03), although opioid use did not differ significantly between groups. Overall, the lidocaine patch showed potential for reducing postoperative pain. However, given the limited sample size and the exploratory nature of this pilot study, these results should be interpreted with caution and validated in future large-scale, adequately powered clinical trials.

Indexed as

Anesthetics, LocalHernia, InguinalHerniorrhaphyLidocainePostoperative PainAdultAgedDouble-Blind MethodFemaleHumansMaleMiddle AgedPain MeasurementPilot ProjectsProspective StudiesTransdermal PatchAnesthetics, LocalLidocaine

Identifiers

PMID41526421
PMCPMC12847908

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Registered trials

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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.