IMR Press / RCM / Volume 23 / Issue 6 / DOI: 10.31083/j.rcm2306194
Open Access Original Research
Associations between Mitral Annular and Left Atrial Volume Changes in Healthy Adults–Detailed Analysis from the Three-Dimensional Speckle-Tracking Echocardiographic MAGYAR-Healthy Study
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1 Department of Medicine, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary
*Correspondence: nemes@in2nd.szote.u-szeged.hu (Attila Nemes)
Academic Editor: Vasileios Panoulas
Rev. Cardiovasc. Med. 2022, 23(6), 194; https://doi.org/10.31083/j.rcm2306194
Submitted: 24 January 2022 | Revised: 25 March 2022 | Accepted: 28 April 2022 | Published: 27 May 2022
Copyright: © 2022 The Author(s). Published by IMR Press.
This is an open access article under the CC BY 4.0 license.
Abstract

Background: Three-dimensional (3D) speckle-tracking echocardiography (3DSTE) is one of the newest development in non-invasive imaging offering simultaneous 3D evaluation of atria and valvular annuli. 3DSTE was used to analyze correlations between left atrial (LA) volume changes and mitral annular (MA) dimensions and functional properties in healthy adult subjects. Methods: A total of 297 healthy subjects were enrolled in this retrospective cohort study, from which insufficient quality of images was responsible for the exclusion of 98 cases (33%). The remaining study population consisted of 199 healthy adults without valvular regurgitation/stenosis in sinus rhythm (mean age: 33.5 ± 12.7 years, 104 males, body mass index: 24.7 ± 1.2 kg/m2, systolic and diastolic blood pressure: 118.2 ± 3.4 mmHg and 78.3 ± 4.5 mmHg, respectively). Two-dimensional Doppler echocardiography and 3DSTE were performed in all cases. Results: Larger LA volumes were associated with more dilated MA dimensions with its reduced function. Elevated LA stroke volumes could be demonstrated only in systole and end-diastole, while increased LA emptying fraction was present only in end-diastole. Reduced MA fractional area change was associated with larger diastolic LA volumes, smaller early diastolic LA stroke volume, in addition all LA emptying fractions were smaller as well. Correlations could be demonstrated between LA and MA parameters. Conclusions: 3DSTE is suitable not only for chamber quantifications, but also for the assessment of valvular annular dimensions. Strong relationship exists between LA volumes and MA dimensions and functional properties.

Keywords
healthy
mitral annulus
left atrium
three-dimensional
echocardiography
Figures
Fig. 1.
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