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Cardiovascular and metabolic science
On-line version ISSN 2954-3835Print version ISSN 2683-2828
Abstract
HERNANDEZ-DEL RIO, Jorge Eduardo et al. Triplane left atrial strain. Cardiovasc. metab. sci [online]. 2022, vol.33, n.1, pp.8-16. Epub May 22, 2023. ISSN 2954-3835. https://doi.org/10.35366/104032.
Left atrial strain, assessed by two-dimensional echocardiography with speckle tracking, has emerged as an important part of the evaluation of the atrial function in different pathologies. The objective was to compare the percentage of myocardial deformation of the left atrium evaluated by monoplanar, biplanar and triplanar measurement. The study was a Cross-sectional, prospective, observational, analytical and single-center, atrial deformation was examined using the syngo® Velocity Vector Imaging technology software. It was predetermined to use the apical 4, 2 and 3-chamber views to calculate myocardial deformation. Patients older than 18 without cardiovascular risk factors, without previous chronic, infectious, or congenital diseases were included. A total of 126 healthy patients were collected, of which 71 (56%) were male, the mean age of the population was 38 years (± 16). Intraobserver and interobserver variability were adequate. The different values of the left atrium were compared. For the reservoir strain, only a significant difference was found between the apical 3-chamber and apical 2-chamber values reported; in pump strain, there were no significant differences in values obtained; for the conduit strain, again the apical 3-chamber view was the lowest, finding a significant difference with the apical 4c, apical 2c and biplane views. The concordance of the reservoir strain of each apical view was independently related to the biplane and triplane views, finding that both apical 2c and 4c views had a good concordance with both biplane and triplane views. However, the apical 3c view had a lower concordance. The same was found for pump strain and conduit strain, being Apical 2c and 4c views superior.
Conclusion:
The 3-chamber view has different left atrial strain values than the other apical views, and the concordance of all other values of left atrium examination are similar; hence it is not further significant to perform a biplane or triplane examination. Based on the information obtained, the 3-chamber view should not be used, and a monoplane evaluation can be used, either the 4-chamber or 2-chamber views with similar concordance among them.
Keywords : Left atrial; strain deformation; triplane.
