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LMNA mutations account for 6.2% of familial DCM in Norway and are associated with high penetrance, frequent arrhythmias, and a high rate of heart transplantation, emphasizing the need for early family screening.
LMNA mutation prevalence was 6.2% of familial DCM in Norway. Cardiac penetrance was high in young asymptomatic LMNA genotype-positive family members with frequent AV block and VT, highlighting the importance of early family screening and cardiological follow-up. Nearly 20% of the LMNA patients required heart transplantation.
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Hasselberg et al. (2017) studied this question.
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