{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T18:49:55Z","timestamp":1792176595771,"version":"4.4.0"},"reference-count":36,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2024,8,1]],"date-time":"2024-08-01T00:00:00Z","timestamp":1722470400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Cephalalgia"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>To synthesize the available epidemiologic data on short-lasting unilateral neuralgiform headache attacks (SUNHA). This, in turn, might inform diagnostic work-up and clinical decision-making.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>EMBASE and PubMed were searched for observational studies reporting on the prevalence or relative frequency of SUNHA or its individual clinical features. Two investigators independently conducted title and abstract screening, full-text review, data extraction, and risk of bias assessment, and random-effects meta-analyses were performed to estimate the prevalence or relative frequency of SUNHA and its individual clinical features.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Fifteen clinic-based studies met our eligibility criteria. Of these, five studies reported estimates on the relative frequency of SUNHA among adults evaluated for headache or facial pain, yielding a pooled relative frequency as 0.32% (95% confidence interval\u00a0=\u00a00.17\u20130.62; I\n                      <jats:sup>2<\/jats:sup>\n                      <jats:sup>\u2009<\/jats:sup>\n                      =\u200989.9%). Most often, SUNHA presented as episodic, side-locked stabbing headache of severe pain intensity, predominantly affecting the ophthalmic and\/or maxillary branch of the trigeminal nerve. The most common cranial autonomic features were lacrimation, conjunctival injection, rhinorrhea and nasal congestion.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>SUNHA is a rare headache disorder with distinct clinical features. However, our findings must be interpreted with caution as a result of between-study heterogeneity and lack of population-based studies, underscoring the need for further epidemiologic research.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/03331024241271976","type":"journal-article","created":{"date-parts":[[2024,8,20]],"date-time":"2024-08-20T02:45:41Z","timestamp":1724121941000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["Epidemiology and clinical features of short-lasting unilateral neuralgiform headache attacks: A systematic review and  meta-analysis"],"prefix":"10.1177","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-9755-9419","authenticated-orcid":false,"given":"Johanne Gry","family":"Larsen","sequence":"first","affiliation":[{"name":"Department of Neurology, Danish Headache Center, Copenhagen University Hospital\u00a0\u2013\u00a0Rigshospitalet, Copenhagen, Denmark"},{"name":"Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-0921-8478","authenticated-orcid":false,"given":"Mikkel Johannes","family":"Henningsen","sequence":"additional","affiliation":[{"name":"Department of Neurology, Danish Headache Center, Copenhagen University Hospital\u00a0\u2013\u00a0Rigshospitalet, Copenhagen, Denmark"},{"name":"Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William Kristian","family":"Karlsson","sequence":"additional","affiliation":[{"name":"Department of Neurology, Danish Headache Center, Copenhagen University Hospital\u00a0\u2013\u00a0Rigshospitalet, Copenhagen, Denmark"},{"name":"Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rune H\u00e4ckert","family":"Christensen","sequence":"additional","affiliation":[{"name":"Department of Neurology, Danish Headache Center, Copenhagen University Hospital\u00a0\u2013\u00a0Rigshospitalet, Copenhagen, Denmark"},{"name":"Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark"},{"name":"Translational Research Center, Copenhagen University Hospital \u2013 Rigshospitalet, Copenhagen, Denmark"},{"name":"Harvard Medical School, Boston, MA, USA"},{"name":"Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7015-3369","authenticated-orcid":false,"given":"Haidar Muhsen","family":"Al-Khazali","sequence":"additional","affiliation":[{"name":"Department of Neurology, Danish Headache Center, Copenhagen University Hospital\u00a0\u2013\u00a0Rigshospitalet, Copenhagen, Denmark"},{"name":"Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark"},{"name":"Translational Research Center, Copenhagen University Hospital \u2013 Rigshospitalet, Copenhagen, Denmark"},{"name":"Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Faisal Mohammad","family":"Amin","sequence":"additional","affiliation":[{"name":"Department of Neurology, Danish Headache Center, Copenhagen University Hospital\u00a0\u2013\u00a0Rigshospitalet, Copenhagen, Denmark"},{"name":"Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H\u00e5kan","family":"Ashina","sequence":"additional","affiliation":[{"name":"Department of Neurology, Danish Headache Center, Copenhagen University Hospital\u00a0\u2013\u00a0Rigshospitalet, Copenhagen, Denmark"},{"name":"Translational Research Center, Copenhagen University Hospital \u2013 Rigshospitalet, Copenhagen, Denmark"},{"name":"Harvard Medical School, Boston, MA, USA"},{"name":"Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, MA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2024,8,19]]},"reference":[{"key":"bibr1-03331024241271976","doi-asserted-by":"publisher","DOI":"10.1177\/0333102417738202"},{"key":"bibr2-03331024241271976","doi-asserted-by":"publisher","DOI":"10.1177\/03331024221131343"},{"key":"bibr3-03331024241271976","doi-asserted-by":"publisher","DOI":"10.1111\/head.14658"},{"key":"bibr4-03331024241271976","doi-asserted-by":"publisher","DOI":"10.1038\/nrdp.2018.6"},{"key":"bibr5-03331024241271976","doi-asserted-by":"publisher","DOI":"10.1001\/jama.283.15.2008"},{"key":"bibr6-03331024241271976","unstructured":"Headache Classification Committee of the International Headache Society (IHS). The International Classification of Headache Disorders, first edition, https:\/\/ichd-3.org\/evolution-of-ihs-classification-1-3\/ (1988, accessed March 1, 2024)."},{"key":"bibr7-03331024241271976","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1111\/j.1468-2982.2003.00824.x","volume":"24","author":"Headache Classification Committee of the International Headache Society","year":"2004","journal-title":"Cephalalgia"},{"key":"bibr8-03331024241271976","doi-asserted-by":"publisher","DOI":"10.1177\/0333102413485658"},{"key":"bibr9-03331024241271976","unstructured":"University of Adelaide. Critical Appraisal tools for use in JBI Systematic Reviews \u2013 Checklist for Prevalence Studies. Adelaide, Joanna Briggs Institute, https:\/\/jbi.global\/sites\/default\/files\/2020-08\/Checklist_for_Prevalence_Studies.pdf (2020, accessed March 14, 2024)."},{"key":"bibr10-03331024241271976","unstructured":"Higgins JPT, Thomas J, Chandler J, et al. 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