Fig. 8: Sample atrial electromechanical assessment in patients with atrial fibrillation. | Nature Communications

Fig. 8: Sample atrial electromechanical assessment in patients with atrial fibrillation.

From: Non-invasive electromechanical assessment during atrial fibrillation identifies underlying atrial myopathy alterations with early prognostic value

Fig. 8

a Analysis of a 52-year-old man with an atrial fibrillation (AF) episode lasting 61 days. Electromechanical dissociation (EMD) was not documented either on transthoracic echocardiography (TTE) or transesophageal echocardiography (TEE) sequences. Cardioversion to sinus rhythm was documented 12 h after flecainide orally. Representative movies of tissue Doppler imaging (TDI) sequences and atrial wall tracking on the left atrial (LA) wall are shown in Suppl. Movie 1 (TTE images) and Suppl. Movie 2 (TEE images). b Analysis of a 54-year-old woman with an AF episode lasting 153 days. Atrial EMD was detected on TTE and TEE sequences. Pharmacological cardioversion with flecainide orally failed to cardioverter the AF episode within the first 24 h. Light red tracings on digital lead II recordings show subtracted QRS-T complexes. Light red tracings on lead II recordings from the surface ECG show the original signal. A4C apical 4-chamber view, LA left atrium, LV left ventricle, RA Right atrium, RV right ventricle.

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