Evidence map›Paper›PMID 28573171›Full record

ArticleEndoscopy international open2017

Topical lidocaine inhibits spasm during colonoscopy: a double-blind, randomized controlled trial (with video).

Daiki Nemoto, Kenichi Utano, Noriyuki Isohata, Shungo Endo, Kensuke Kumamoto, Taka-Aki Koshimizu, Alan Lefor, Kazutomo Togashi

Open access · goldAbstract read
In one paragraph

Article in Endoscopy international open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.5field-weighted citation impact, top 17% of its field
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

10 citing papers in PubMed, 11 citations in OpenAlex.

  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
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  6. Review
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  9. Feasibility of the lidocaine injection method during esophageal endoscopic submucosal dissection.JGH open : an open access journal of gastroenterology and hepatology · 2020
    Article
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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

8 authors at 2 institutions in 1 country.

Daiki NemotoAizu Medical Center Fukushima Medical University - Coloproctology, Aizuwakamatsu, Fukushima, Japan.
Kenichi UtanoAizu Medical Center Fukushima Medical University - Coloproctology, Aizuwakamatsu, Fukushima, Japan.
Noriyuki IsohataAizu Medical Center Fukushima Medical University - Coloproctology, Aizuwakamatsu, Fukushima, Japan.
Shungo EndoAizu Medical Center Fukushima Medical University - Coloproctology, Aizuwakamatsu, Fukushima, Japan.
Kensuke KumamotoAizu Medical Center Fukushima Medical University - Coloproctology, Aizuwakamatsu, Fukushima, Japan.
Taka-Aki KoshimizuJichi Medical University - Pharmacology, Shimotsuke, Tochigi, Japan.
Alan LeforJichi Medical University - Surgery, Shimotsuke, Tochigi, Japan.
Kazutomo TogashiAizu Medical Center Fukushima Medical University - Coloproctology, Aizuwakamatsu, Fukushima, Japan.
Fukushima Medical University · JPJichi Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND STUDY

aimsTopical peppermint oil prevents intestinal spasm, but can cause rebound spasm. Lidocaine hydrochloride, a local anesthetic, may work as an antispasmodic by blocking Na + channels. The aim of this study was to investigate the effect of topical lidocaine on the inhibition of colonic spasm during colonoscopy, compared with peppermint oil. PATIENTS AND

methodsA randomized, controlled double-blind trial was conducted in an academic endoscopy unit. Patients requiring endoscopic resection were randomly allocated to colonoscopy with topical administration of lidocaine (n = 30) or peppermint oil (n = 30). Similar vials containing different solutions were randomly numbered. Allocation was made based on the vial number. The solution used and the vial number were not revealed during the study. Two endoscopists performed all procedures using midazolam, without anticholinergic agents. When a pre-selected lesion was identified, the solution in the assigned vial was dispersed and the bowel observed for 5 minutes. The primary endpoint was the duration of spasm inhibition, and a secondary endpoint was the occurrence of rebound spasm stronger than before dispersion.

resultsThere were no significant differences in patient demographics. Spasm was inhibited in almost all patients in both groups, with a similar median duration (lidocaine 227 sec vs. peppermint 212.5 sec,

conclusionsThe inhibitory effect of lidocaine is not superior to peppermint oil. However, lidocaine significantly decreases the frequency of rebound spasms.

Identifiers

PMID28573171
PMCPMC5449199
OpenAlexW2617031212

What OpenQuestion holds

Textmetadata
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.