Left atrial strain parameters derived by echocardiography are impaired in patients with acute myocarditis and preserved systolic left ventricular function

Meindl, Christine and Paulus, Michael and Poschenrieder, Florian and Hamer, Okka W. and Zeman, Florian and Maier, Lars S. and Debl, Kurt (2023) Left atrial strain parameters derived by echocardiography are impaired in patients with acute myocarditis and preserved systolic left ventricular function. INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING, 39 (6). pp. 1157-1165. ISSN 1569-5794, 1875-8312

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Abstract

Purpose: Data derived by cardiac magnetic resonance (CMR) feature tracking suggest that not only left ventricular but also left atrial function is impaired in patients with acute myocarditis. Therefore, we investigated the diagnostic value of speckle tracking echocardiography of the left ventricle and left atrium in patients with acute myocarditis and normal left ventricular ejection fraction (LVEF). Methods and results: 30 patients with acute myocarditis confirmed by CMR according to the Lake Louise criteria and 20 healthy controls were analyzed including global longitudinal strain (GLS) and left atrial (LA) strain parameters. Although preserved LVEF was present in both groups, GLS was significantly lower in patients with acute myocarditis (GLS - 19.1 +/- 1.8% vs. GLS - 22.1 +/- 1.7%, p < 0.001). Further diastolic dysfunction measured by E/e' mean was significantly deteriorated in the myocarditis group compared to the control group (E/e' mean 6.4 +/- 1.6 vs. 5.5 +/- 1.0, p = 0.038). LA reservoir function (47.6 +/- 10.4% vs. 55.5 +/- 10.8%, p = 0.013) and LA conduit function (-33.0 +/- 9.6% vs. -39.4 +/- 9.5%, p = 0.024) were significantly reduced in patients with acute myocarditis compared to healthy controls. Also left atrial stiffness index (0.15 +/- 0.05 vs. 0.10 +/- 0.03, p = 0.003) as well as left atrial filling index (1.67 +/- 0.47 vs. 1.29 +/- 0.34, p = 0.004) were deteriorated in patients with myocarditis compared to the control group. Conclusion: In patients with acute myocarditis and preserved LVEF not only GLS but also LA reservoir function, LA conduit function and left atrial stiffness index as well as left atrial filling index were impaired compared to healthy controls indicating ventricular diastolic dysfunction and elevated LV filling pressures.

Item Type: Article
Uncontrolled Keywords: SPECKLE-TRACKING ECHOCARDIOGRAPHY; CARDIOVASCULAR MAGNETIC-RESONANCE; SIZE; Myocarditis; Left atrial strain imaging; Speckle tracking; Diastolic dysfunction
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Innere Medizin II
Medicine > Lehrstuhl für Röntgendiagnostik
Medicine > Zentren des Universitätsklinikums Regensburg > Zentrum für Klinische Studien
Depositing User: Dr. Gernot Deinzer
Date Deposited: 07 Mar 2024 16:14
Last Modified: 07 Mar 2024 16:14
URI: https://pred.uni-regensburg.de/id/eprint/58995

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