{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T14:58:29Z","timestamp":1780498709350,"version":"3.54.1"},"reference-count":14,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2021,12,6]],"date-time":"2021-12-06T00:00:00Z","timestamp":1638748800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100007155","name":"Medical Research Council Canada","doi-asserted-by":"publisher","award":["Clinical Research Training Fellowship MR\/M01827X\/1"],"award-info":[{"award-number":["Clinical Research Training Fellowship MR\/M01827X\/1"]}],"id":[{"id":"10.13039\/501100007155","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007155","name":"Medical Research Council Canada","doi-asserted-by":"publisher","award":["MRC Centre for Neuromuscular Diseases grant MR\/K00"],"award-info":[{"award-number":["MRC Centre for Neuromuscular Diseases grant MR\/K00"]}],"id":[{"id":"10.13039\/501100007155","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012621","name":"University College London Hospitals Biomedical Research Centre","doi-asserted-by":"publisher","award":["BRC401\/NS\/MH\/101410"],"award-info":[{"award-number":["BRC401\/NS\/MH\/101410"]}],"id":[{"id":"10.13039\/501100012621","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010269","name":"Wellcome Trust","doi-asserted-by":"publisher","award":["Fellowship 209583"],"award-info":[{"award-number":["Fellowship 209583"]}],"id":[{"id":"10.13039\/100010269","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Muscle and Nerve"],"published-print":{"date-parts":[[2022,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aims<\/jats:title><jats:p>The aim of this study was to evaluate the sensitivity of the long exercise test (LET) in the diagnosis of periodic paralysis (PP) and assess correlations with clinical phenotypes and genotypes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>From an unselected cohort of 335 patients who had an LET we analyzed 67 patients with genetic confirmation of PP and\/or a positive LET.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>32\/45 patients with genetically confirmed PP had a significant decrement after exercise (sensitivity of 71%). Performing the short exercise test before the LET in the same hand confounded results in four patients. Sensitivity was highest in patients with frequent (daily or weekly) attacks (8\/8, 100%), intermediate with up to monthly attacks (15\/21, 71%) and lowest in those with rare attacks (9\/16, 56%) (<jats:italic>p<\/jats:italic>\u00a0=\u00a0.035, Mann\u2013Whitney <jats:italic>U<\/jats:italic>\u2010test). Patients with a positive LET without confirmed PP mutation comprised those with typical PP phenotype and a group with atypical features.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>In our cohort, the LET is strongly correlated with the frequency of paralytic attacks suggesting a role as a functional marker. A negative test in the context of frequent attacks makes a diagnosis of PP unlikely but it does not rule out the condition in less severely affected patients.<\/jats:p><\/jats:sec>","DOI":"10.1002\/mus.27465","type":"journal-article","created":{"date-parts":[[2021,11,25]],"date-time":"2021-11-25T08:15:33Z","timestamp":1637828133000},"page":"581-585","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["The long exercise test as a functional marker of periodic paralysis"],"prefix":"10.1002","volume":"65","author":[{"given":"Ana","family":"Ribeiro","sequence":"first","affiliation":[{"name":"Department of Clinical Neurophysiology King's College Hospital  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Karen J.","family":"Suetterlin","sequence":"additional","affiliation":[{"name":"Queen Square Centre for Neuromuscular Diseases University College London  London UK"},{"name":"Department of Clinical Neurophysiology Royal Victoria Infirmary  Newcastle Upon Tyne UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iwona","family":"Skorupinska","sequence":"additional","affiliation":[{"name":"Queen Square Centre for Neuromuscular Diseases University College London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. Veronica","family":"Tan","sequence":"additional","affiliation":[{"name":"Department of Neurology and Neurophysiology, St Thomas' Hospital, Guy's and St Thomas' NHS Foundation Trust and Department of Academic Neurosciences Kings College London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jasper M.","family":"Morrow","sequence":"additional","affiliation":[{"name":"Queen Square Centre for Neuromuscular Diseases University College London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3810-306X","authenticated-orcid":false,"given":"Emma","family":"Matthews","sequence":"additional","affiliation":[{"name":"Queen Square Centre for Neuromuscular Diseases University College London  London UK"},{"name":"Atkinson\u2010Morley Neuromuscular Centre St George's University Hospitals NHS Foundation Trust  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael G.","family":"Hanna","sequence":"additional","affiliation":[{"name":"Queen Square Centre for Neuromuscular Diseases University College London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7161-6185","authenticated-orcid":false,"given":"Doreen","family":"Fialho","sequence":"additional","affiliation":[{"name":"Department of Clinical Neurophysiology King's College Hospital  London UK"},{"name":"Queen Square Centre for Neuromuscular Diseases University College London  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,12,6]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.26009"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.0000000000004894"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.0b013e31828cf8d0"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880090805"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/1097-4598(200007)23:7<1089::AID-MUS12>3.0.CO;2-Q"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.20241"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/ana.22238"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1212\/01.WNL.0000143383.91137.00"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1097\/WNP.0000000000000405"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880180418"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.2003.013870"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.26157"},{"issue":"1","key":"e_1_2_10_14_1","first-page":"37","article-title":"Genetic neurological channelopathies: molecular genetics and clinical phenotypes","volume":"87","author":"Spillane J","year":"2016","journal-title":"J Neurol Neurosurg Psychiatry"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1007\/s13760-018-0895-y"}],"container-title":["Muscle &amp; Nerve"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/mus.27465","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/mus.27465","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/mus.27465","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,25]],"date-time":"2023-08-25T20:08:54Z","timestamp":1692994134000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/mus.27465"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,12,6]]},"references-count":14,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2022,5]]}},"alternative-id":["10.1002\/mus.27465"],"URL":"https:\/\/doi.org\/10.1002\/mus.27465","archive":["Portico"],"relation":{},"ISSN":["0148-639X","1097-4598"],"issn-type":[{"value":"0148-639X","type":"print"},{"value":"1097-4598","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,12,6]]},"assertion":[{"value":"2021-02-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-11-16","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2021-12-06","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}