Fig. 3From: Fibrosis independent atrial fibrillation in older patients is driven by substrate leukocyte infiltration: diagnostic and prognostic implications to patients undergoing cardiac surgerya H&E stain of normal human atrium. Scale bar represents 200 µm. b Sirius red stain showing collagen fibers stained red, and myocardial fibers stained green. Scale bar represents 100 µm. c graph showing fibrosis was positively correlated with patient age. d table representing salient differences between patients in SR and AFib. e CD45 MFI MoΦ shows no correlation to percent fibrosis. f CD45 MoΦ show statistically significant correlation to hospital length of stayBack to article page