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- W2999649232 abstract "Abstract Hereditary amyloidosis represents 10% of all amyloid deposit diseases. Cardiac involvement clinically presents as heart failure. As advanced imaging methods have become available, subclinical detection of cardiac involvement has become a must in those patients since it changes the prognosis of the disease. The objective of the present paper was to determine if echocardiographic parameters of auricular and ventricular mechanics better predict cardiac involvement compared to the classic echocardiographic parameters suggestive of amyloid deposit in the heart. This was a prospective, observational and descriptive study of a cohort of 30 patients with diagnosis of hereditary TTR+ amyloidosis without known cardiac involvement. We performed 2 and 3D echocardiography with left auricular and ventricular mechanics by strain method. Each patient was evaluated at the beginning of the study and at a 1-year follow-up visit. The grade of diastolic disfunction increased from a normal diastole in 67% of patients to only 53% at 1-year follow-up. The antero-posterior diameter of the left atrium increased (p = 0.04), the E/e’ Index also increased (p = 0.01), both suggestive of increased left ventricular filling pressures. The LVEF, as a classic parameter of left ventricular function remained normal in 97% of patients during follow-up. No differences were found in terms of systolic ventricular mechanics; however, diastolic mechanics were altered. Untwist was increased (p = 0.02) and the reservoir auricular function was decreased from 34 to 30% (p = 0.03). Table. Echocardiographic strain and 3D echocardiography can show changes early in patients with cardiac involvement in patients with hereditary TTR+ amyloidosis. Statistically significant results Variable Basal 1 year follow-up P Left atrial anteroposterior diameter (mm) 32.8 ± 5 35.1 ± 5.6 0.004 Ventricular mass (gr/m2SC) 70.7 (61-90.8) 82.6 (69.2-113.7) <0.0001 Left ventricular telediastolic volume (ml) 37.2 ± 11 41.6 ± 11.6 0.03 Mitral A velocity (ms) 113.7 ± 28.6 130.5 ± 19.5 0.03 Lateral e mitral velocity (cm/s) 13.8 ± 5.5 12.4 ± 4.8 0.04 Mitral E/e’ index 7.9 ± 5.2 9.5 ± 5.5 0.01 Untwist 110.8 ± 49.9 127.5 ± 62.6 0.02 Reservoir auricular strain (%) 34.8 ± 8.6 30.8 ± 9.4 0.03 Telesystolic left atrial volume (ml) 25.9 ± 8.8 27.4 ± 11 0.01 Telediastolic left atrial volume (ml) 42.5 ± 12.9 40.7 ± 13.7 0.03 Left atrial ejection fraccion (%) 0.42 ± 0.20 0.34 ± 0.18 0.03 Table 1. Statistically significant results." @default.
- W2999649232 created "2020-01-23" @default.
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- W2999649232 date "2020-01-01" @default.
- W2999649232 modified "2023-09-24" @default.
- W2999649232 title "P778 Evaluation of left auricular and ventricular subclinical function by strain imaging in a cohort of hereditary TTR + amyloidosis" @default.
- W2999649232 doi "https://doi.org/10.1093/ehjci/jez319.437" @default.
- W2999649232 hasPublicationYear "2020" @default.
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