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Congress: ECR25
Poster Number: C-27022
Type: Poster: EPOS Radiologist (scientific)
Authorblock: M. Bevilacqua, F. De Litteris, V. Rende, G. Grazzini, S. Pradella, V. Miele; Florence/IT
Disclosures:
Martina Bevilacqua: Nothing to disclose
Federica De Litteris: Nothing to disclose
Valeria Rende: Nothing to disclose
Giulia Grazzini: Nothing to disclose
Silvia Pradella: Nothing to disclose
Vittorio Miele: Nothing to disclose
Keywords: Cardiac, MR, Comparative studies, Image verification
Purpose Atrial fibrillation (AF) is one of the arrhythmias with the highest socioeconomic burden and acts as an accelerant for other cardiac dysfunctions1. AF can be considered a progressive disease in all respects and can lead over time to tachycardia-mediated cardiomyopathy, characterised by reduced left ventricular ejection fraction (LVEF) and congestive heart failure. However, many patients with AF present with symptoms of dyspnoea but have a normal LVEF.Left ventricular (LV) myocardial strain is a measure of ventricular performance that has been...
Read more Methods and materials We retrospectively included 65 patients aged >65 years (mean age 82 years) with an history of AF on oral anticoagulant therapy who underwent non-contrast-enhanced CMR on a 3T machine between January 2021 and September 2022. Of the 65 patients, 10 were excluded due to poor image quality and artifacts. Therefore, the left ventricular strain values of 55 patients (38 male sex, 17 female sex) were examined using feature tracking analysis on dedicated software.Circumferential and radial strain values were evaluated from...
Read more Results Of the 55 patients, 43 (78.2%) showed reduced left ventricular circumferential strain values and 46 (83.6%) showed reduced left ventricular radial strain values, both with statistical significance (p-value 0.0087 for LV circumferential strain and p-value 0.0041 for LV radial strain, respectively) compared to the corresponding strain values in healthy controls. 45 patients (81.8%) showed reduced left ventricular longitudinal strain values compared to the LV longitudinal strain values of the healthy controls, without statistical significance (p-value 0.0832).
Read more Conclusion The study shows that the presence of AF correlates with reduced left ventricular strain values, whereas LVEF was reduced in only 50% of the AF group. Although based on a limited sample, the results support the role of left ventricular strain assessment as a sensitive and early marker of ventricular impairment in patients with AF, but further research is needed.
Read more References 1. 2024 ESC Guidelines for the management of atrial fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS).2. Agner BFR, Katz MG, Williams ZR, Dixen U, Jensen GB, Schwarz KQ. Left Ventricular Systolic Function Assessed by Global Longitudinal Strain is Impaired in Atrial Fibrillation Compared to Sinus Rhythm. 2018;10(4).3. Rajiah PS. Myocardial Strain Evaluation with Cardiovascular MRI: Physics, Principles, and Clinical Applications. 42(4).
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