{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T12:12:08Z","timestamp":1780402328831,"version":"3.54.1"},"reference-count":38,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2020,6,1]],"date-time":"2020-06-01T00:00:00Z","timestamp":1590969600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Brief paroxysmal atrial fibrillation (BPAF) is defined as episodes of atrial fibrillation (AF) lasting less than 30\u2009seconds and can be a sign of atrial cardiomyopathy. We aimed to evaluate left atrial (LA) function in patients with BPAF.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This cross\u2010sectional prospective study consecutively recruited 42 patients with BPAF on 24 to 48\u2009hour electrocardiography Holter monitoring. We selected 50 volunteers as the control group after 24\u2009hours electrocardiography Holter monitoring. Two\u2010dimensional speckle\u2010tracking echocardiography was performed to evaluate the longitudinal deformation variables of LA function.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Strain rate during LA reservoir phase was lower (<jats:italic>P<\/jats:italic> =\u2009.018) in patients with BPAF (2.0 \u00b1\u20090.4 second<jats:sup>\u22121<\/jats:sup>) than in controls (2.2 \u00b1\u20090.5 second<jats:sup>\u22121<\/jats:sup>). This difference remained significant after adjustments for left ventricular ejection fraction, LA maximal volume, and diabetes (<jats:italic>\u03b2<\/jats:italic> =\u20090.222, <jats:italic>P<\/jats:italic> =\u2009.036). Strain during LA reservoir, conduit, and contraction phases and strain rate during the conduit and contraction phases were not significantly different between the two groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The reservoir function of the LA evaluated by two\u2010dimensional speckle\u2010tracking echocardiography was lower in subjects than that without BPAF.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jcu.22874","type":"journal-article","created":{"date-parts":[[2020,6,1]],"date-time":"2020-06-01T13:38:39Z","timestamp":1591018719000},"page":"476-485","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Decreased longitudinal systolic strain rate of the left atrial myocardium as one of the earliest markers of atrial cardiomyopathy in subjects with brief paroxysmal atrial fibrillation"],"prefix":"10.1002","volume":"48","author":[{"given":"Kaveh","family":"Hosseini","sequence":"first","affiliation":[{"name":"Cardiology Department, Tehran Heart Center Tehran University of Medical Sciences  Tehran I.R. 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