Data from the sarcomeric human cardiomyopathy (SHARE) registry showed that overall clinical outcomes may be worse in patients with MYH7 variants.[35] However, they found that the incidence of cardiac arrest was higher in patients with MYBPC3 variants.[35] Interestingly, variant position was significantly associated with LVMI in patients with MYBPC3 variants, although with poor overall correlation. Here, MYBPC3 is linked to cardiac arrest.