(A). A Langendorff perfused heart and 32 multi-electrode arrays was placed on the right atria. (B). Layout of 32 multi-electrode arrays.(C). representative examples of right atrium waveforms and activation during sinus rhythm from a sham rat (left) and a SP (sterile pericarditis) rat on postoperative day 3 (right) analysed by multielectrode array. In contrast to the atrial activation patterns in sham rats, the maps from SP rats were characterized by inhomogeneous conduction.

References:

Huang Z, Chen X, Qian C, et al. Signal transducer and activator of transcription 3/microRNA-21 feedback loop contributes to atrial fibrillation by promoting atrial fibrosis in a rat sterile pericarditis model[J]. Circulation: Arrhythmia and Electrophysiology, 2016, 9(7): e003396.

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