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- W3000294003 abstract "Abstract Objectives to evaluate the relationship between left atrial (LA) peak strain and left ventricular (LV) diastolic function and determine whether LA strain could be used to detect elevated filling pressures in a population of patients with preserved LV ejection fraction (LVpEF). Background the assessment of diastolic function is complex and multiparameter. 2016 ASE and EACVI algorithm has simplified this approach, but there are still patients with discrepant values leading to an indeterminate diagnosis, specially in patients with preserved ejection fraction. Methods we prospectively included 129 patients in our cohort. Inclusion criteria were LVEF > 50% and sinus rhythm. Patients with atrial fibrillation, significant mitral valvulopathy or poor quality imaging were excluded. Two-dimensional speckle tracking was used to measure peak LA strain in all LA segments (using apical 4 chamber, 2 chamber and 3 chamber views). We evaluated the association of LA global peak strain and LA 4 chamber peak strain with the different categories of diastolic function according to the 2016 ASE and EACVI algorithm. Results Both LA global peak strain and 4 chamber LA peak strain showed a progressive decrease with worsening diastolic dysfunction (DD) severity (Table 1). A global LA peak strain cutoff value of 28,35% was very accurate to differentiate normal from elevated filling pressures (normal function or grade 1 DD from grades 2 and 3 DD). Diagnostic accuracy: 80.20%; area under the curve: 0,80 (0,72-0,88); A significant group of patients (21,1%) could not be categorized using 2016 algorithm. Conclusions Both LA global peak strain and 4 chamber LA peak strain demonstrated a progressive decrease with worsening DD severity. Global LA peak strain value of 28,35% was an accurate cutoff to differenciate patients with normal vs elevated filling pressures. LA strain values and diastolic function Total LA global peak STRAIN LA 4C STRAIN N (%) p-value p-value Total 129 30.90 %(11.77) 30.43 (12.36) Diastole <0.0001 <0.0001 Normal function 36 (28.13) 39.72% (9.59) 39.98 (10.59) Indeterminate Diastolic Function 23 (17.97) 31.07% (7.97) 30.19 (7.50) Indeterminate DD 4 (3.13) 30.68 % (6.72) 29.75 (7.31) grade 1 DD 22 (17.19) 32.69 % (12.54) 32.98 (14.46) grade 2 DD 36 (28.13) 23.90 % (9.32) 23.53 (9.49) grade 3 DD 7 (5.47) 15.43 % (5.72) 15.85 (7.32)" @default.
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- W3000294003 date "2020-01-01" @default.
- W3000294003 modified "2023-09-27" @default.
- W3000294003 title "P934 Left atrial strain association with left ventricular diastolic function" @default.
- W3000294003 doi "https://doi.org/10.1093/ehjci/jez319.567" @default.
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