Evidence map›Paper›PMID 33767287›Full record

ArticleScientific reports2021

Clinical features of cluster headache without cranial autonomic symptoms: results from a prospective multicentre study.

Min Kyung Chu, Byung-Su Kim, Pil-Wook Chung, Byung-Kun Kim, Mi Ji Lee, Jeong Wook Park, Jin-Young Ahn, Dae Woong Bae, Tae-Jin Song, Jong-Hee Sohn and 10 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Scientific reports, 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
0.8field-weighted citation impact, top 32% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
  2. Review
  3. 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

20 authors at 16 institutions in 1 country.

Min Kyung ChuDepartment of Neurology, Severance Hospital, College of Medicine, Yonsei University, Seoul, Korea.
Byung-Su KimDepartment of Neurology, Bundang Jesaeng General Hospital, Daejin Medical Center, Seongnam, Korea.
Pil-Wook ChungDepartment of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Byung-Kun KimDepartment of Neurology, Eulji Hospital, Eulji University, Seoul, Korea.
Mi Ji LeeDepartment of Neurology, Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Jeong Wook ParkDepartment of Neurology, Uijeongbu St. Mary's Hospital, The Catholic University of Korea College of Medicine, Uijeongbu, Korea.
Jin-Young AhnDepartment of Neurology, Seoul, Medical Center, Seoul, Korea.
Dae Woong BaeDepartment of Neurology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea.
Tae-Jin SongDepartment of Neurology, College of Medicine, Ewha Womans University Seoul Hospital, Seoul, Korea.
Jong-Hee SohnDepartment of Neurology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Korea.
Kyungmi OhDepartment of Neurology, Korea University College of Medicine, Seoul, Korea.
Daeyoung KimDepartment of Neurology, Chungnam National University College of Medicine, Daejeon, Korea.
Jae-Moon KimDepartment of Neurology, Chungnam National University College of Medicine, Daejeon, Korea.
Soo-Kyoung KimDepartment of Neurology, Gyeongsang National University College of Medicine, Jinju, Korea.
Yun-Ju ChoiDr. Choi's Neurology Clinic, Jeonju, Korea.
Jae Myun ChungDepartment of Neurology, Inje University College of Medicine, Seoul, Korea.
Heui-Soo MoonDepartment of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Chin-Sang ChungDepartment of Neurology, Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Kwang-Yeol ParkDepartment of Neurology, Chung-Ang University Hospital, Seoul, Korea.
Soo-Jin ChoDepartment of Neurology, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Keun Jae Bong-gil 7, Hwaseong, 18450, Gyeonggi-do, Korea. downc@naver.com.
Bundang Jesaeng Hospital · KRChungnam National University · KRSungkyunkwan University · KRChung-Ang University Hospital · KREwha Womans University · KRGyeongsang National University · KRHallym University Chuncheon Sacred Heart Hospital · KRHallym University Dongtan Sacred Heart Hospital · KRInje University · KRKangbuk Samsung Hospital · KRKorea University · KRSamsung Medical Center · KRSeoul Medical Center · KRSeverance Hospital · KRThe Catholic University of Korea St. Vincent's Hospital · KRThe Catholic University of Korea Uijeongbu St. Mary's Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although cranial autonomic symptoms (CAS) are typical in cluster headache (CH), some individuals with CH show no CAS during their headache attacks. Probable cluster headache (PCH) is a subtype of CH that fulfils all but one criterion of CH. This study aimed to investigate the frequency and clinical features of CH and PCH without CAS in comparison to those with CAS. We analysed data from the Korea Cluster Headache Registry, a prospective multicentre registry involving data from 16 hospitals. Of the 216 participants with CH and 26 with PCH, 19 (8.8%) and 7 (26.9%), respectively, did not have CAS. Participants with CH without CAS exhibited less severe anxiety (General Anxiety Disorder-7 score, median [interquartile range], 2.0 [1.0-6.0] vs 8.0 [3.0-12.0], p = 0.001) and depression (Patient Health Questionnaire-9 score, 3.0 [1.0-7.0] vs 7.0 [3.0-11.0], p = 0.042) than those with CAS. Among participants with PCH, headache intensity was less severe in participants without CAS than in those with CAS (numeric rating scale, 8.0 [7.0-8.0] vs 9.5 [8.0-10.0], p = 0.015). In conclusion, a significant proportion of participants with CH and PCH did not have CAS. Some clinical features of CH and PCH differed based on the presence of CAS.

Indexed as

RegistriesAdultAutonomic Nervous SystemCluster HeadacheFemaleHumansMaleProspective StudiesRepublic of Korea

Identifiers

PMID33767287
PMCPMC7994319
OpenAlexW3116542083

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.