Evidence map›Paper›PMID 32989543›Full record

Trial reportSurgical endoscopy2021

The efficacy of the submucosal injection of lidocaine during endoscopic submucosal dissection for colorectal neoplasms: a multicenter randomized controlled study.

Masami Ijiri, Takahiro Sasaki, Mikihiro Fujiya, Takuya Iwama, Yuki Murakami, Keitaro Takahashi, Kazuyuki Tanaka, Katsuyoshi Ando, Nobuhiro Ueno, Shin Kashima and 4 more

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Surgical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Submucosal Lidocaine Injection in Colonic Endoscopic Submucosal Dissection: A Single-Center, Double-Blind, Randomized Controlled Trial.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2026
    Trial
  2. Trial
  3. Review
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

14 authors.

Masami IjiriDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Takahiro SasakiDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Mikihiro FujiyaDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan. fjym@asahikawa-med.ac.jp.
Takuya IwamaDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Yuki MurakamiDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Keitaro TakahashiDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Kazuyuki TanakaDepartment of Gastroenterology, Asahikawa Kosei Hospital, Asahikawa, Hokkaido, Japan.
Katsuyoshi AndoDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Nobuhiro UenoDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Shin KashimaDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Kentaro MoriichiDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Hiroki TanabeDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.
Yusuke SaitoDepartment of Gastroenterology, Asahikawa City Hospital, Asahikawa, Hokkaido, Japan.
Toshikatsu OkumuraDivision of Gastroenterology and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, 2-1-1-1, Midorigaoka, Asahikawa, Hokkaido, 078-8510, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndoscopic submucosal dissection (ESD) is currently a common procedure although it requires a long procedural time. We conducted a prospective study to determine the efficacy and safety of lidocaine injection for shortening the procedural time and relieving bowel peristalsis during ESD.

methodsA multicenter randomized controlled study was conducted in three hospitals. Ninety-one patients who underwent colorectal ESD were enrolled. Patients were randomly divided into two groups using the envelope method: the lidocaine group and saline group. The primary endpoint was the procedural time, and the secondary endpoints were the procedural time in each part of the colon and the grade of bowel peristalsis and the incidence and amounts of antispasmodic drugs use and adverse events.

resultsThe patients' demographics were not markedly different between the two groups. The mean procedural time in the lidocaine group was not markedly different from that in the saline group. In contrast, at the proximal site, the procedural time in the lidocaine group (57 min) was significantly shorter in the saline group (80 min). The grade of bowel peristalsis in the lidocaine group (0.67) was significantly lower than in the saline group (1.17). Antispasmodic drug use was significantly rarer in the lidocaine group than in the saline group. The incidence of adverse events was not markedly different between the two groups.

conclusionsLocal lidocaine injection is a feasible option for preventing bowel peristalsis, particularly in the proximal colon, leading to a reduced procedural time for ESD and decreased antispasmodic drug use. University Hospital Medical Information Network Center (UMIN number: 000022843).

Indexed as

Colorectal NeoplasmsEndoscopic Mucosal ResectionDissectionHumansLidocaineProspective StudiesTreatment OutcomeLidocaine

Identifiers

PMID32989543
PMCPMC8346385

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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.