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• W4226277781 abstract "Abstract Funding Acknowledgements Type of funding sources: Public Institution(s). Main funding source(s): Helse Nord Background The 2016 guidelines of the American Society of Echocardiography (ASE) and European Association of Cardiovascular Imaging (EACVI) for evaluation of left ventricular (LV) diastolic dysfunction do not adjust assessment of high filling pressures for patients with aortic stenosis (AS). However, most of the studies on this patient group indicate age independent specific diastolic features in AS. Purpose The aim of this study is to identify disease-specific range and distribution of diastolic functional parameters and their ability to identify high N-terminal prohormone of brain natriuretic peptide (NT-proBNP) levels as a marker for high filling pressures. Methods In this study, 169 patients who underwent surgical aortic valve replacement (SAVR) or transcatheter aortic valve replacement (TAVR) were prospectively enrolled. Resting echocardiography was performed including Doppler of the mitral inflow, pulmonary venous flow, tricuspid regurgitant flow and tissue Doppler in the mitral ring and indexed volume-estimates of the left atrium (LAVI). Echocardiography, and NT-proBNP levels were assessed before TAVR/SAVR and at two postoperative visits at 6 and 12 months. Results Pre- and postoperative values were septal e´; 5.1 ± 3.9, 5.2 ± 1.6 cm/s; lateral e´ 6.3 ± 2.1; 7.7 ± 2.7 cm/s; E/e´19 ± 8; 16 ± 7 cm/s; E velocity 96 ± 32; 95 ± 32 cm/s; LAVI 39 ± 8; 36 ± 8 ml/m2, pulmonary artery pressure (PAP) 39 ± 8; 36 ± 8 mmHg, respectively. The scoring recommended by ASE/EACVI detected elevated NT pro-BNP with a specificity of 25%. Adjusting thresholds according to the cut-off values of the table increased prediction of NT-proBNP levels ≥ 500 ng/L with substantially increased specificity (&gt;85%). Conclusion Diastolic echocardiographic parameters in AS indicate persistent impaired relaxation and NT-proBNP indicate elevated filling pressures in most of the patients, improving only modestly 6-12 months after TAVR and SAVR. Applying the 2016 ASE/EACVI recommendations for detection of elevated filling pressures to patients with AS, elevated NT pro-BNP levels could not be reliably detected. However, adjusting thresholds of the echocardiographic parameters increased specificities to useful diagnostic levels. Abstract Table Cut-off values for high ProBNP Abstract Figure. Examples for diastolic parameters in AS" @default.
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• W4226277781 date "2022-02-01" @default.
• W4226277781 modified "2023-10-17" @default.
• W4226277781 title "Echocardiographic assessment of diastolic dysfunction in elderly patients with severe aortic stenosis before and after aortic valve replacement" @default.
• W4226277781 doi "https://doi.org/10.1093/ehjci/jeab289.160" @default.
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