Atrial Dyssynchrony Measured by Strain Echocardiography as a Marker of Proarrhythmic Remodeling and Oxidative Stress in Cardiac Surgery Patients

Figure 2

(a) Longitudinal strain echocardiography in a four-chamber view with the Omega () adaptation for the analysis technique of time activation between lateral walls. Yellow and blue dots show the measured segment of the lateral wall. (b) Measurement technique to determine differences between the activation time of two segments at the lateral atrial walls, from one maximal deflection strain rate contraction of a curve to the same point in the other curve. (c) Schematic visualization in a four-chamber view with an example of the determination of time difference in activation between the lateral wall of the right and left atria. (d) Example of strain rate from right and left atrial walls in synchronic and dyssynchronic patients.

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