TNNI3K and Paroxysmal supraventricular tachycardia: Podliesna et al. studied the genes of three independent PSVT family members accompanied by conduction block, dilated cardiomyopathy, and sudden death-related diseases or not, with the same gene mutations in the cardiac troponin I-interacting kinase (TNNI3K) gene (c.2302G>A, p. Glu768Lys) which led to increased conduction indices by increased troponin I interaction kinase activity in a series of signal path changes [29, 30].