LMNA and cardiomyopathy: Significant interstitial myocardial fibrosis, which was seen in our patient in the period of fast progressing heart failure, is consistent with observations of other authors in patients with cardiomyopathy associated with defects of the LMNA gene (Fatkin et al. 1999; van Tintelen et al. 2007; Holmström et al. 2011).