Figure 5: Effects of age and frailty on patterns of atrial conduction.
From: Atrial structure, function and arrhythmogenesis in aged and frail mice
(A) Representative activation maps in atrial preparations from a young mouse and an aged mouse. The right atrium is on the right side of the image. Red colour indicates the earliest activation time in the right atrial posterior wall. Time interval between isochrones is 1.25 ms. (B and C), Summary of the effects of age on right atrial (B) and left atrial (C) conduction velocity. Data analyzed using Student’s t-test; n = 10 young and 40 aged mice. (D and E), Linear regression analysis of right atrial (D) and left atrial (E) conduction velocity as a function of FI score; n = 50 mice for panels D and E.
