Evidence map›Paper›PMID 32010269›Full record

ArticleExperimental and therapeutic medicine2020

Botulinum toxin A treatment for post-herpetic neuralgia: A systematic review and meta-analysis.

Xin-Long Li, Xu Zeng, Shan Zeng, Hai-Ping He, Zhen Zeng, Li-Lei Peng, Li-Gang Chen

Open access · diamondAbstract read
In one paragraph

Article in Experimental and therapeutic medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 3 pooled it
1.6field-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

6 citing papers in PubMed, 3 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. [Adjunctive agents for nerve blocks/local injections in the treatment of zoster-associated pain: A systematic review based on levels of evidence].Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2026
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Review
  6. 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 at 1 institution in 1 country.

Xin-Long LiDepartment of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Xu ZengDepartment of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Shan ZengDepartment of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Hai-Ping HeDepartment of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Zhen ZengDepartment of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Li-Lei PengDepartment of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Li-Gang ChenDepartment of Neurosurgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Affiliated Hospital of Southwest Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The present meta-analysis study aimed to investigate the safety and efficacy of local administration of botulinum toxin (BTX-A) vs. lidocaine in the treatment of post-herpetic neuralgia. A systematic search of the Cochrane Library, PubMed, Embase, Chinese National Knowledge Infrastructure, Wanfang, Chongqing VIP Information Co. and Chinese Biomedical Literature Database was performed to identify randomized controlled trials (RCTs) comparing BTX-A and lidocaine in the treatment of post-herpetic neuralgia. The primary outcomes were Visual Analogue Scale (VAS) pain scores at 1, 2 and 3 months after treatment and the effective rate. Secondary outcomes were scores on the McGill pain questionnaire and adverse event rate. A total of 7 RCTs comprising 752 patients were included. The VAS pain score was significantly lower at 1 month [mean difference (MD)=-2.31; 95% CI: -3.06, -1.56; P<0.00001)], 2 months (MD=-2.18; 95% CI: -2.24, -2.11; P<0.00001) and 3 months (MD=-1.93; 95% CI: -3.05, -0.82; P=0.0007) after treatment, the effective rate was significantly higher (odds ratio=2.9; 95% CI: 1.71, 4.13; P<0.0001) and scores on the McGill pain questionnaire were significantly lower (MD=-10.93; 95% CI: -21.02, -0.83; Z=2.12; P=0.03) in patients who received BTX-A for post-herpetic neuralgia compared to those who received lidocaine. There was no difference in the adverse event rate between treatments. In conclusion, BTX-A has potential as a safe and effective treatment option for post-herpetic neuralgia. Further large and well-designed RCTs are required to confirm this conclusion.

Indexed as

botulinum toxin-aefficacymeta-analysispost-herpetic neuralgiasafety

Identifiers

PMID32010269
PMCPMC6966161
OpenAlexW2993256728

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.