Figure 4 | Scientific Reports

Figure 4

From: Association between interatrial septum adiposity and atrial fibrillation: transesophageal echocardiography imaging and autopsy study

Figure 4

Myocardial splitting by interatrial septum adipose tissue (IAS-AT). (A) Representative and magnified images of interatrial septum (IAS) sections in a patient without (a) and with (b) AF. Scale bar: 1 mm (upper), 100 µm (middle), 100 µm (bottom). (B) Representative SEM images in patients without (a) or with (b) AF. A, adipocyte; M, myocardium. Yellow arrowheads indicate collagen fibers neighboring adipocytes. (C) Quantitative analysis of the number of splitting myocardium pieces. Data are presented as the means ± SD. **p < 0.01, by Student’s t-test. n = 5 for Non AF, n = 5 for AF. (D) Positive correlation between interatrial septum adipose tissue (IAS-AT) percentage in sections and number of split myocardium pieces, by bivariate analysis. n = 10 for the group.

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