SCN5A and Myocardial fibrosis: Only few patients had some evidence for myocardial fibrosis or fatty infiltration, and the proportion of such patients did not differ statistically significantly between the groups: fibrosis in 3 of 40 SCN5A-mut-positive and 3 of 98 SCN5A-mut-negative patients (p = 0.1); fatty infiltration in 1 of 40 SCN5A-mut-positive and 2 of 98 SCN5A-mut-negative patients (p = 0.9).