{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T12:22:27Z","timestamp":1789647747524,"version":"4.0.0"},"reference-count":35,"publisher":"Oxford University Press (OUP)","issue":"8","license":[{"start":{"date-parts":[[2024,7,26]],"date-time":"2024-07-26T00:00:00Z","timestamp":1721952000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003748","name":"Swedish Society for Medical Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003748","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004359","name":"Swedish Research Council","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003793","name":"Swedish Heart-Lung Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003793","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Southern Healthcare Region\u2019s Research"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,8,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Aims<\/jats:title>\n                  <jats:p>Short-term ambulatory electrocardiogram (ECG) monitoring is often used to assess premature atrial complex (PAC) and premature ventricular complex (PVC) frequency, but the diagnostic reliability is unknown. The objective of this study was to study the day-to-day variability of PAC and PVC frequency.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods and results<\/jats:title>\n                  <jats:p>We used 14-day full-disclosure mobile cardiac telemetry recordings without atrial fibrillation in 8245 US patients aged 17\u2013103 years to calculate the diagnostic reliability of shorter ambulatory ECG recordings compared with 14-day averages. Over 14 days, 1853 patients had \u2265500 PACs\/day, 410 patients had \u22655000 PACs\/day, and 197 patients had \u226510 000 PACs\/day; 1640 patients had \u2265500 PVCs\/day, 354 patients had \u22655000 PVCs\/day, and 175 patients had \u226510 000 PVCs\/day. After 3 days, the estimated daily PAC frequency differed by \u226550% from the 14-day mean in 25% of patients; for PVCs, the corresponding duration was 7 days. Ten days of monitoring were needed to estimate PAC and PVC frequency within \u00b120% of the overall 14-day frequency in 80% of patients. For daily PAC and PVC frequencies \u226510 000, single-day estimation had a specificity of 99.3% [95% confidence interval (CI) 99.1\u201399.5] at a sensitivity of 76.6 (95% CI 70.1\u201380.4%) for PACs and a 99.6% (95% CI 99.4\u201399.7%) specificity at 79.4 (95% CI 72.7\u201385.2) sensitivity for PVCs. After 7 days, the sensitivity increased to 88.8% (95% CI 83.6\u201392.9) for PACs and 86.9% (95% CI 80.9\u201391.5%) for PVCs.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>While there is substantial daily variability across most PAC and PVC levels, findings of \u226510 000 PACs or PVCs are highly specific and do not need to be confirmed with longer recordings.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/europace\/euae198","type":"journal-article","created":{"date-parts":[[2024,7,25]],"date-time":"2024-07-25T23:12:32Z","timestamp":1721949152000},"source":"Crossref","is-referenced-by-count":6,"title":["Diagnostic reliability of monitoring for premature atrial and ventricular complexes"],"prefix":"10.1093","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8066-1655","authenticated-orcid":false,"given":"Alexandra","family":"M\u00e5neheim","sequence":"first","affiliation":[{"name":"Department of Clinical Sciences, Lund University , Malm\u00f6 ,","place":["Sweden"]},{"name":"Department of Clinical Sciences, Sk\u00e5ne University Hospital , Carl Bertil Laurells gata 9, 214 28 Malm\u00f6 ,","place":["Sweden"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3946-5529","authenticated-orcid":false,"given":"Johan","family":"Economou Lundeberg","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, Lund University , Malm\u00f6 ,","place":["Sweden"]},{"name":"Department of Clinical Sciences, Sk\u00e5ne University Hospital , Carl Bertil Laurells gata 9, 214 28 Malm\u00f6 ,","place":["Sweden"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7506-3899","authenticated-orcid":false,"given":"Anders P","family":"Persson","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, Lund University , Malm\u00f6 ,","place":["Sweden"]},{"name":"Department of Clinical Sciences, Sk\u00e5ne University Hospital , Carl Bertil Laurells gata 9, 214 28 Malm\u00f6 ,","place":["Sweden"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-8730-4916","authenticated-orcid":false,"given":"Albin","family":"Edegran","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, Lund University , Malm\u00f6 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Medicine, Cardiology Division\/Pauley Heart Center, Virginia Commonwealth University , Richmond, VA ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8618-9152","authenticated-orcid":false,"given":"Gunnar","family":"Engstr\u00f6m","sequence":"additional","affiliation":[{"name":"Department of Clinical Sciences, Lund University , Malm\u00f6 ,","place":["Sweden"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1216-7580","authenticated-orcid":false,"given":"Jeff S","family":"Healey","sequence":"additional","affiliation":[{"name":"Population Health Research Institute (PHRI) , Hamilton, ON ,","place":["Canada"]},{"name":"Division of Cardiology, McMaster University , Hamilton, ON ,","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2249-8220","authenticated-orcid":false,"given":"Linda 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