Evidence map›Paper›PMID 32440198›Full record

ArticleJournal of pain research2020

Efficacy and Safety of Percutaneous Ozone Injection Around Gasserian Ganglion for the Treatment of Trigeminal Neuralgia: A Multicenter Retrospective Study.

Lei Gao, Ruo-Wen Chen, John P Williams, Tong Li, Wei-Jiang Han, Qian-Nan Zhao, Yong Wang, Jian-Xiong An

Open access · goldAbstract read
In one paragraph

Article in Journal of pain research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 34% 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, 11 citations in OpenAlex.

  1. Efficacy and safety of a modified ozone-mediated neurolysis in treatment for patients with resistant hypertension.Hypertension research : official journal of the Japanese Society of Hypertension · 2026
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  3. Review
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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 4 institutions in 2 countries.

Lei GaoDepartment of Anesthesiology, Weifang Medical University, Weifang City 261000, Shangdong, People's Republic of China.
Ruo-Wen ChenDepartment of Anesthesiology, Pain and Sleep Medicine, Aviation General Hospital of China Medical University and Beijing Institute of Translational Medicine, Chinese Academy of Sciences, Beijing, 100012, People's Republic of China.
John P WilliamsDepartment of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA.ORCID 0000-0002-8838-1471
Tong LiDepartment of Pain, Lanzhou Maternity and Child Healthcare Hospital, Lanzhou, 730030, People's Republic of China.
Wei-Jiang HanDepartment of Pain, Xishuangbanna Dai Nationality Autonomous Prefecture People's Hospital, Xishuangbanna, 666100, People's Republic of China.
Qian-Nan ZhaoDepartment of Anesthesiology, Pain and Sleep Medicine, Aviation General Hospital of China Medical University and Beijing Institute of Translational Medicine, Chinese Academy of Sciences, Beijing, 100012, People's Republic of China.
Yong WangDepartment of Anesthesiology, Pain and Sleep Medicine, Aviation General Hospital of China Medical University and Beijing Institute of Translational Medicine, Chinese Academy of Sciences, Beijing, 100012, People's Republic of China.ORCID 0000-0003-2596-7456
Jian-Xiong AnDepartment of Anesthesiology, Weifang Medical University, Weifang City 261000, Shangdong, People's Republic of China.
Aviation General Hospital · CNWeifang Medical University · CNGansu Provincial Maternal and Child Health Hospital · CNUniversity of Pittsburgh · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOzone injection around Gasserian ganglion (OIAGG) has been reported to be an effective treatment for trigeminal neuralgia (TN); however, there remain areas for improvement. To overcome one of these limitations, a multicenter examination of application would be extremely helpful.

objectiveThe goal of this report was to assess the efficacy of OIAGG for refractory TN across multiple centers and to explore factors predictive of successful treatment.

designA multicenter, retrospective study.

settingThe study was conducted across 3 pain centers across China. PATIENTS AND

methodsA total of 103 subjects from 3 pain centers were enrolled in the study. An ozone-oxygen mixture gas at a concentration of 30 µg/mL was injected into the area around the Gasserian ganglion performed under C-arm X-ray guidance. Primary outcome measures included a pain assessment using a visual analog scale (VAS) and the Barrow Neurological Institute (BNI) pain intensity scale. Clinical assessment of patients for these outcome measures was performed at pretreatment, post-treatment, 6 months, 1 year and 2 years after the OIAGG.

resultsSuccessful pain relief was defined as a score within BNI grades I-IIIa. The pain relief rates at post-treatment, 6 months, 1 year and 2 years after the procedure were 88.35%, 86.87%, 84.46% and 83.30%, respectively. The VAS at each observation time point was significantly different from the preoperative levels (P<0.05). Logistic regression analysis showed that previous nerve damage had a significant effect on the treatment results. No significant complications or side effects were found during or after treatment.

conclusionThis multicenter research confirms our previous single center results that OIAGG is both effective and safe for patients with TN.

Indexed as

Gasserian ganglionozone therapytrigeminal neuralgiatrigeminal post-herpetic neuralgia

Identifiers

PMID32440198
PMCPMC7210028
OpenAlexW3021509520

What OpenQuestion holds

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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.