ArticleEchocardiography (Mount Kisco, N.Y.)2026
Left Atrial Strain for Risk Stratification of Later-Detected Atrial Fibrillation After Acute Ischemic Stroke.
Article in Echocardiography (Mount Kisco, N.Y.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeAtrial fibrillation (AF) may be detected after acute ischemic stroke (AIS) even when it is not identified during the initial stroke evaluation. This study evaluated the association between left atrial strain (LAS) parameters measured by routine echocardiography and later-detected AF after AIS.
methodsThis retrospective study included 490 patients with AIS without prior or concurrent AF who underwent speckle-tracking LAS analysis. Later-detected AF was defined as AF newly documented more than 7 days after the index stroke. Clinical and echocardiographic parameters were compared according to later-detected AF status, and associations were evaluated using logistic regression. Exploratory receiver operating characteristic (ROC) analysis assessed the discriminatory ability of the LAS parameters.
resultsOver a median follow-up of 30.6 months, later-detected AF was observed in 23 patients (4.7%). Patients with later-detected AF had lower LA reservoir strain (LASr) and less negative LA contractile strain (LASct) than those without AF (LASr: 22.4% ± 5.3% vs. 29.1% ± 8.9%; LASct: -11.3% ± 4.2% vs. -16.3% ± 5.5%; both p < 0.001). In multivariable models adjusted for CHA
conclusionLASr and LASct were associated with later-detected AF after AIS and may help identify patients who may warrant closer rhythm surveillance when extended monitoring is limited.
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