Impact of the diastolic dysfunction in the left atrial strain in patients with ischemic heart disease. A cross-sectional study

Abstract: Introduction: Left atrial strain (LAS) has been related to the grade of diastolic dysfunction. However, only a few reports exist about its relationship among patients with ischemic heart disease (IHD). Objective: To compare the LAS value among patients with normal and abnormal diastolic function. Material and methods: A cross-sectional, retrospective, observational, analytic, single-center study (Hospital Civil de Guadalajara). All patients with an ischemic heart disease diagnosis (acute and chronic) were included between June 2017 and July 2019. Results: Two hundred forty-eight patients were included. Among the study population, 58% had diastolic dysfunction. LAS was lower in the diastolic dysfunction group on the reservoir (39% vs 23%), conduit (22 vs 11%) and pump phases (16 vs 23%). As diastolic dysfunction progressed, the reservoir (39 vs 30% vs 22 vs 16%) and conduit (22 vs 12% vs 12 vs 9%) phases of left atrial strain decreased, and during the pump phase an improvement was noticed between grade 1 diastolic dysfunction compared with a normal diastolic function (16 vs 18% vs 11 vs 6%). We used the ROC curve to determine the cut-off value to predict diastolic dysfunction, and the cut-off was < 31.6%. The LAS also correlated with proBNP concentrations. Conclusion: As diastolic dysfunction progress, the three phases of LAS present a linear decline in IHD.

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Bibliographic Details
Main Authors: Miranda-Aquino,Tomás, Hernández-del Río,Jorge Eduardo, Pérez-Topete,Silvia Esmeralda, González-Padilla,Christian, Lomelí-Sánchez,Óscar Sergio, Cid-Porras,Carlos del, Machuca-Hernández,Michel, Esturau-Santaló,Ramón Miguel
Format: Digital revista
Language:English
Published: Asociación Nacional de Cardiólogos de México A.C. 2021
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S2954-38352021000400170
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