The β1-AAb impedes the atrial conduction properties
(A) Typical sketch map of pacing in a S1-S2 mode at 3 Hz. (B) Measurements of AERP at the ex vivo level per left atrium for at least two times among three groups, (n=4) per group. (C) Pacing-induced CV recording of three groups. (D) Calculation of CV under pacing at 3 Hz, (n=4) per group. (E) Synchronous detection of CV heterogeneity in three groups. (F) Quantitation of CV heterogeneity using S1-S2 protocol, (n=4) per group. *P<0.05 indicates statistical significance.