Familial hypercholesterolemia (FH) is a disorder characterized genetically by elevated blood low-density lipoprotein (LDL) cholesterol (LDL-C) levels, a risk factor for CVD [5,6,7,8], and the proprotein convertase subtilisin kexin 9 (PCSK9) is one of the key molecules in the pathophysiology of FH [9]. This evidence concerns the gene PCSK9 and familial hyperaldosteronism.