{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T22:27:12Z","timestamp":1782944832680,"version":"3.54.5"},"reference-count":94,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2019,10,11]],"date-time":"2019-10-11T00:00:00Z","timestamp":1570752000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Noninvasive Electrocardiol"],"published-print":{"date-parts":[[2020,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Little is known about ECG abnormalities in patients with heart failure and normal ejection fraction (HeFNEF) and how they relate to different etiologies or outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and Results<\/jats:title><jats:p>We searched the literature for peer\u2010reviewed studies describing ECG abnormalities in HeFNEF other than heart rhythm alone. Thirty five studies were identified and 32,006 participants. ECG abnormalities reported in patients with HeFNEF include atrial fibrillation (prevalence 12%\u201346%), long PR interval (11%\u201320%), left ventricular hypertrophy (LVH, 10%\u201330%), pathological Q waves (11%\u201318%), RBBB (6%\u201316%), LBBB (0%\u20138%), and long JTc (3%\u20134%). Atrial fibrillation is more common in patients with HeFNEF compared to those with heart failure and reduced ejection fraction (HeFREF). In contrast, long PR interval, LVH, Q waves, LBBB, and long JTc are more common in patients with HeFREF. A pooled effect estimate analysis showed that QRS duration \u2265120\u00a0ms, although uncommon (13%\u201319%), is associated with worse outcomes in patients with HeFNEF.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>There is high variability in the prevalence of ECG abnormalities in patients with HeFNEF. Atrial fibrillation is more common in patients with HeFNEF compared to those with HeFREF. QRS duration \u2265120\u00a0ms is associated with worse outcomes in patients with HeFNEF. Further studies are needed to address whether ECG abnormalities correlate with different phenotypes in HeFNEF.<\/jats:p><\/jats:sec>","DOI":"10.1111\/anec.12710","type":"journal-article","created":{"date-parts":[[2019,10,11]],"date-time":"2019-10-11T13:13:51Z","timestamp":1570799631000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Electrocardiographic characteristics in patients with heart failure and normal ejection fraction: A systematic review and meta\u2010analysis"],"prefix":"10.1111","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8810-0414","authenticated-orcid":false,"given":"Theodora","family":"Nikolaidou","sequence":"first","affiliation":[{"name":"Wythenshawe Hospital Manchester University NHS Foundation Trust Manchester UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nathan A.","family":"Samuel","sequence":"additional","affiliation":[{"name":"Department of Academic Cardiology Castle Hill Hospital University of Hull Hull UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carl","family":"Marincowitz","sequence":"additional","affiliation":[{"name":"Hull York Medical School University of Hull University of York York UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David J.","family":"Fox","sequence":"additional","affiliation":[{"name":"Wythenshawe Hospital Manchester University NHS Foundation Trust Manchester UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John G. 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