{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T03:27:58Z","timestamp":1791084478559,"version":"4.1.0"},"reference-count":34,"publisher":"Oxford University Press (OUP)","issue":"7","license":[{"start":{"date-parts":[[2024,6,25]],"date-time":"2024-06-25T00:00:00Z","timestamp":1719273600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Gentofte University Hospital Department of Cardiovascular Research"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,7,2]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Aims<\/jats:title>\n                  <jats:p>The treatment of atrial fibrillation (AF) in hypertrophic cardiomyopathy (HCM) can be challenging since AF aggravates symptoms and increases the risk of stroke. Which factors contribute to the development of AF and stroke in HCM remains unknown. The aim of this study was to determine the incidence of AF and stroke in HCM patients and identify the risk factors.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods and results<\/jats:title>\n                  <jats:p>Using Danish national registries, all HCM patients from 2005 to 2018 were included. The association between HCM, incident AF, and stroke was investigated using multivariable Cox proportional hazards analysis. Cumulative incidences were calculated using the Aalen\u2013Johansen estimator. Among the 3367 patients without prevalent AF, 24% reached the endpoint of incident AF with death as a competing risk. Median follow-up time was 4 years. Atrial fibrillation incidence was equal between sexes and increased for patients with ischaemic heart disease [IHD; hazard ratio (HR) 1.33, 95% confidence interval (CI) 1.08\u20131.63], hypertension (HT) (HR 1.36, 95% CI 1.14\u20131.67), and obstructive HCM (HR 1.27, 95% CI 1.05\u20131.52). Seven per cent developed stroke, with no difference detected stratifying for the presence of AF. Sub-analysis revealed that when AF was treated with oral anticoagulants (OACs), stroke was less likely (HR 0.4, 95% CI 0.18\u20130.86, P = 0.02). However, 34% of patients were not receiving adequate anticoagulation following AF diagnosis.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>Obstructive HCM, HT, and IHD were associated with increased risk of AF. Prevalent AF alone was not predictive of stroke; however, AF patients treated with OAC were significantly less likely to develop stroke, suggesting that this development is driven by the protective effect of OAC. Despite this, 34% of patients did not receive OAC.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/europace\/euae177","type":"journal-article","created":{"date-parts":[[2024,6,25]],"date-time":"2024-06-25T17:08:32Z","timestamp":1719335312000},"source":"Crossref","is-referenced-by-count":8,"title":["Understanding the incidence of atrial fibrillation and stroke in hypertrophic cardiomyopathy patients: insights from Danish nationwide registries"],"prefix":"10.1093","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8374-4202","authenticated-orcid":false,"given":"Christopher R","family":"Z\u00f6rner","sequence":"first","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4887-2193","authenticated-orcid":false,"given":"Anne-Marie","family":"Schjerning","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"},{"name":"Department of Cardiology, Rigshospitalet , Copenhagen , Denmark"},{"name":"The Danish Heart Foundation , Copenhagen , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1144-4603","authenticated-orcid":false,"given":"Morten Kvistholm","family":"Jensen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Aarhus University Hospital , Aarhus , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6855-1496","authenticated-orcid":false,"given":"Alex H\u00f8rby","family":"Christensen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"},{"name":"Department of Cardiology, Rigshospitalet , 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\/0000-0003-3895-9316","authenticated-orcid":false,"given":"Jacob","family":"Tfelt-Hansen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Rigshospitalet , Copenhagen , Denmark"},{"name":"Department of Forensic Medicine, University of Copenhagen , Copenhagen , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2645-0774","authenticated-orcid":false,"given":"Jacob","family":"T\u00f8nnesen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0345-4345","authenticated-orcid":false,"given":"Lise Da","family":"Riis-Vestergaard","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-6763-3991","authenticated-orcid":false,"given":"Charlotte","family":"Middelfart","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4593-3854","authenticated-orcid":false,"given":"Peter Vibe","family":"Rasmussen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0548-402X","authenticated-orcid":false,"given":"Gunnar","family":"Gislason","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Herlev-Gentofte University Hospital , Copenhagen , Denmark"},{"name":"The Danish Heart 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