{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T17:29:18Z","timestamp":1750440558530,"version":"3.37.3"},"reference-count":25,"publisher":"Oxford University Press (OUP)","issue":"9","license":[{"start":{"date-parts":[[2022,9,30]],"date-time":"2022-09-30T00:00:00Z","timestamp":1664496000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,12,31]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Hand arm vibration syndrome (HAVS) is a condition caused by hand transmitted vibration from the use of hand-held vibrating tools or workpieces. The disease affects the vascular, neurological and musculoskeletal systems. The vascular component of HAVS is a form of secondary Raynaud\u2019s phenomenon. Other causes of disease must be excluded before attributing the cause to hand transmitted vibration.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aims<\/jats:title><jats:p>To evaluate the prevalence, and utility of testing for, cryoglobulins and cold agglutinins in patients with HAVS symptoms.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective cohort study of 1183 patients referred for HAVS clinical assessment at St. Michael\u2019s Hospital, Toronto, Canada, between 2014 and 2020. The standard operating procedure at the clinic includes a detailed clinical and exposure history, physical examination, objective investigations and blood tests. Data were retrieved from patient chart review and laboratory investigation results for all cases with cryoglobulin and cold agglutinin testing.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 1183 patients had a serum cryoglobulin measurement. Eleven patients (1%) were positive. Seven positive results were \u2018low titre\u2019 (1% positive) and the other four results were 2%, 6%, 9% and 18%. The patient with a 9% positive cryoglobulin titre had previously diagnosed Sj\u00f6gren\u2019s syndrome. There were no positive cold agglutinin tests in the 795 patients tested.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Routine testing for cryoglobulins and cold agglutinins in patients with HAVS symptoms is not recommended because test positivity rates are negligible. Testing may be considered if the clinical history or routine blood investigations suggest evidence of underlying cryoglobulinaemia or cold agglutinin disease.<\/jats:p><\/jats:sec>","DOI":"10.1093\/occmed\/kqac083","type":"journal-article","created":{"date-parts":[[2022,9,30]],"date-time":"2022-09-30T19:49:50Z","timestamp":1664567390000},"page":"609-613","source":"Crossref","is-referenced-by-count":1,"title":["Cryoglobulins and cold agglutinins for hand arm vibration syndrome"],"prefix":"10.1093","volume":"72","author":[{"given":"Y","family":"Alsaidi","sequence":"first","affiliation":[{"name":"Division of Occupational Medicine, Department of Medicine, University of Toronto and St. Michael\u2019s Hospital , Toronto , Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4414-6330","authenticated-orcid":false,"given":"A","family":"Thompson","sequence":"additional","affiliation":[{"name":"Division of Occupational Medicine, Department of 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