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• W4381114291 abstract "Abstract Funding Acknowledgements Type of funding sources: None. Introduction Both aortic regurgitation (AR) and mitral regurgitation (MR) produce left ventricular (LV) volume overload (1). Current prognostic assessment of AR does not include the presence and magnitude of MR. Therefore, in patients with concomitant AR and MR we might be underestimating the future need of valve replacement surgery. Cardiac magnetic resonance (CMR) is a very precise tool to quantify LV volumes together with aortic and mitral regurgitant volumes. Combining data from cine and phase contrast sequences it is possible to obtain a set parameter: total regurgitant fraction (TRF). Purpose To describe the prognostic value of TRF in patients with concomitant AR and MR. Methods Patients with concomitant AR and MR with CMR studies were retrospectively recruited in three tertiary hospitals. Cases of at least moderate AR and any grade of MR were included in the analysis. Patients with indication of aortic valve surgery (symptoms, severe LV dilatation or reduced LV eyection fraction) in the moment of the CMR were excluded. Aortic regurgitant fraction (ARF) was calculated from the phase constrast data as the ratio of AR volume and LV forward volume. Mitral regurgitant Fraction (MRF) was calculated from the cine sequences as the ratio of the MR volume and the LV stroke volume (LVSV) . TRF was calculated as the ratio of mitral plus aortic regurgitant volumes and the LVSV (MRV+ARV/LVSV) Results 35 cases were analyzed, with a mean follow up period of 40 months. 9 patients developed indications of aortic valve surgery. TRF had an area under curve (AUC) to predict aortic valve surgery of 0.82, in opposite to aortic regurgitant fraction (ARF) which had an AUC of 0.75 (Figure 1) The optimum cutoff value of TRF and ARF to predict the need of surgery in our series were 38% and 27%, respectively. After 3 years of follow up 53% of patients with TRF &gt; 38% had to be intervened (Figure 2A). In contrast, 32% of patients with ARF &gt;27% had to be intervened (Figure 2B) Conclusion MR presence increases volume overload in patients with moderate or severe AR. TRF is a promising parameter to predict the need of aortic valve surgery in this patients" @default.
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• W4381114291 date "2023-06-01" @default.
• W4381114291 modified "2023-09-27" @default.
• W4381114291 title "Total regurgitant fraction to predict aortic valve surgery in patients with concomitant aortic and mitral regurgitation" @default.
• W4381114291 doi "https://doi.org/10.1093/ehjci/jead119.239" @default.
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