Evidence map›Paper›PMID 33150529›Full record

ArticleJournal of neurology2021

Central sensitization in migraine is related to restless legs syndrome.

Keisuke Suzuki, Shiho Suzuki, Yasuo Haruyama, Madoka Okamura, Tomohiko Shiina, Hiroaki Fujita, Gen Kobashi, Toshimi Sairenchi, Koji Uchiyama, Koichi Hirata

Abstract read
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In one paragraph

Article in Journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 20% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 20 citations in OpenAlex.

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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

10 authors at 1 institution in 1 country.

Keisuke SuzukiDepartment of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga, Mibu, Tochigi, 321-0293, Japan. keisuke@dokkyomed.ac.jp.ORCID http://orcid.org/0000-0003-0320-8993
Shiho SuzukiDepartment of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga, Mibu, Tochigi, 321-0293, Japan.
Yasuo HaruyamaDepartment of Public Health, Dokkyo Medical University School of Medicine, Tochigi, Japan.
Madoka OkamuraDepartment of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga, Mibu, Tochigi, 321-0293, Japan.
Tomohiko ShiinaDepartment of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga, Mibu, Tochigi, 321-0293, Japan.
Hiroaki FujitaDepartment of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga, Mibu, Tochigi, 321-0293, Japan.
Gen KobashiDepartment of Public Health, Dokkyo Medical University School of Medicine, Tochigi, Japan.
Toshimi SairenchiDepartment of Public Health, Dokkyo Medical University School of Medicine, Tochigi, Japan.
Koji UchiyamaLaboratory of International Environmental Health, Center for International Cooperation, Dokkyo Medical University, Tochigi, Japan.
Koichi HirataDepartment of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga, Mibu, Tochigi, 321-0293, Japan.
Dokkyo Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe hypothesized that, in migraine patients, central sensitization (CS) could be associated with comorbid restless legs syndrome (RLS).

methodsWe conducted a case-control study including 186 migraine patients and 186 age- and sex-matched healthy controls. Symptoms related to CS syndrome were assessed by the Central Sensitization Inventory (CSI). Individuals with CSI Part A (CSI-A) scores ≥ 40 were defined as having CS. For patients with migraine, the Brief Pain Inventory (BPI) and Patient Health Questionnaire (PHQ)-9 were administered. In the patient group, RLS and migraine were diagnosed through face-to-face interviews.

resultsAmong migraine patients, 26 (14.0%) suffered from chronic migraine. The mean disease duration was 23.7 ± 11.8 years. Migraine patients showed a higher rate of CS (21.0% vs. 8.6%) than healthy controls, with an adjusted odds ratio (AOR) of 3.039 (95% confidence interval (CI) 1.560-5.992; p = 0.001). Migraine patients in the CS group had higher rates of smoking, chronic migraine and RLS and higher BPI and PHQ-9 scores than migraine patients in the non-CS group. The use of acute and preventive treatment for migraine did not significantly differ between the CS and non-CS groups. Multivariable analysis identified the presence of RLS (AOR, 28.471; 95% CI 6.438-125.918; p < 0.001) and the BPI pain interference score (AOR, 1.398; 95% CI 1.061-1.843; p = 0.017) as the significant determinants of CS among migraine patients.

conclusionMigraine patients were 3 times more likely to have CS than healthy controls. Our study results showed an association between RLS and CS in migraine patients.

Indexed as

Migraine DisordersRestless Legs SyndromeCase-Control StudiesCentral Nervous System SensitizationComorbidityHumansPrevalenceCentral sensitizationCentral sensitization inventoryDepressive symptomsMigraineRestless legs syndrome

Identifiers

PMID33150529
OpenAlexW3095360411

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.