Does the organization of atrial electrical activity measured by entropy differ between paroxysmal and persistent atrial fibrillation?
Entropy measurements reveal distinct patterns of atrial electrical disorganization between paroxysmal and persistent AF, with paroxysmal AF showing greater left atrial disorganization.
Recent studies on atrial fibrillation (AF) have identified different activation patterns in paroxysmal and persistent AF. In this study, bipolar intra-atrial registers from 28 patients (14 paroxysmal AF and 14 persistent AF) were analyzed in order to find out regional differences in the organization in both types of arrhythmias. The organization of atrial electrical activity was assessed in terms of nonlinear parameters, such as entropy measurements. Results showed differences between the atrial chambers with a higher disorganization in the left atrium in paroxysmal AF patients and a more homogenous behavior along the atria in persistent AF patients.
Cervigón et al. (Thu,) studied this question.
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