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• W4381114205 abstract "Abstract Funding Acknowledgements Type of funding sources: None. Background Left atrial reverse remodeling has been defined relying on changes in left atrial volume following specific procedures. Little is known about functional assessment of the left atrium by left atrial strain and left atrial emptying fraction (LAEF) following edge-to-edge mitral repair. Purpose The aim of this study is to assess left atrial function by speckle tracking echocardiography and changes in LAEF, as markers of atrial reverse remodeling, in patient with mitral regurgitation treated with edge-to-edge repair technique. Methods A total of 35 patients diagnosed with severe functional or organic mitral regurgitation who underwent trans-catheter edge-to-edge mitral valve repair were selected. Demographic, clinical and echocardiographic data were collected at the time of enrollment and after a minimum follow-up of six months. The primary endpoint was to assess if left atrial speckle tracking echocardiographic parameters (LASr, LAScd, LASct) and changes in LAEF were reliable indicators of left atrial reverse remodeling, defined as a reduction in indexed left atrial volume ≥ 15% with respect to basal assessment. Collaterally, we tried to identify clinical and standard echocardiographic parameters significantly related to atrial reverse remodeling. Changes between baseline and follow-up parameters were assessed using paired t-test. Results LASr, LASct and LAEF improved significantly in patients with left atrial remodeling during follow-up (LASr: 15,8%±8,43 vs 19,7%±12,22 - P 0,047; LASct: −6,4%±6,21 vs − 9,9%±8,52 - P 0,036; LAEF: 35,5%±14,17 vs 44,1%±15,17 - P 0,003). Collaterally, among all demographics, clinical and echocardiographic data, the absence of coronary artery disease, a systolic dominant pulmonary vein flow, as assessed with pulse-wave-Doppler after the repair, therapy with ACEi/ARB, lower increases in mitral valve pressure gradient after the procedure and lower pulmonary artery systolic pressure at discharge significantly correlated with reverse atrial remodeling. Conclusions In patients with mitral regurgitation treated with edge-to-edge repair, the assessment of left atrial function by speckle tracking echocardiography and left atrial emptying fraction correlates with atrial reverse remodeling, after a minimum follow-up of six months from the procedure. Further studies are needed to better clarify the impact of left atrial remodeling on strong clinical outcomes in patient with mitral regurgitation treated with edge-to-edge repair technique and the role of functional parameters in the definition of the optimal candidate and timing for the repair." @default.
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• W4381114205 date "2023-06-01" @default.
• W4381114205 modified "2023-09-27" @default.
• W4381114205 title "Left atrial function assessed by speckle tracking echocardiography as a marker of atrial reverse remodeling in patients with mitral regurgitation treated with transcatheter edge-to-edge repair" @default.
• W4381114205 doi "https://doi.org/10.1093/ehjci/jead119.363" @default.
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