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. 2025 Mar 31;12:1541651. doi: 10.3389/fcvm.2025.1541651

Table 3.

Genetic analysis.

NO. Sex Age at testing, years Type of CM Follow-up outcomes Gene Mutation Variant type Carrier
1 Boy 0.09 HCM Survive MYH7 Glu924Lys LP Mother
2 Girl 0.25 HCM Survive GAA Pro424fs P Mother
GAA Glu888Ter P Father
3 Boy 0.33 HCM Lost DSP GIn90Arg VUS Mother
RBM20 Arg102Gln VUS Mother
MYH6 Met1784Val VUS Mother
4 Girl 0.75 HCM Survive PKP2 Gly537Ala VUS Father
5 Boy 6.00 HCM Death PTPN11 Pro491Thr P None
6 Boy 7.00 HCM Survive MYH7 Leu863Pro LP None
7 Boy 8.00 HCM Death MYH7 Ala254Glu VUS None
8 Boy 12.00 HCM Survive LAMP2 Splicing P None
9 Girl 13.00 HCM Survive TNNI3 Arg186Gln P None
10 Boy 0.58 HCM Survive GAA Ser601Leu LP Mother
GAA Trp481Arg P Father
11 Boy 13.00 HCM Survive MYH7 Arg783His VUS Father
12 Boy 6.00 HCM Survive MYBPC3 Glu258Lys P Mother
13 Boy 13.00 HCM Survive MYH7 Met822Va P None
14 Boy 0.08 RCM death Undetected / / /
15 Boy 0.11 RCM death Undetected / / /
16 Girl 5.00 RCM Death TNNI3 Arg192His P None
PKP2 Ala749Asp VUS None
17 Boy 10.00 RCM Survive TNNI3 Arg192Cys P None
18 Boy 7.00 RCM Death MYH7 Leu863Pro LP None
19 Boy 5.00 RP-HCM Survive MYH7 Glu855del LP None
BMPR2 Ala935Val) VUS None
FHOD3 Ile1266Val VUS None
20 Girl 10.00 RCM survive Undetected / / /
21 Girl 10.00 RP-HCM Death KCNE3 Thr4Ala LP Mother
VCL Asp735Asn VUS Father
MYH7 Leu863Pro LP None
TTN Cys934Trp VUS Father
HCN4 Ala195Val VUS Mother
22 Boy 13.00 RP-HCM Lost MYH7 Arg783His VUS Father
TNNT2 Arg92Trp VUS Mother
MYL3 Arg94His VUS Mother

HCM, hypertrophic cardiomyopathy; RCM, restrictive cardiomyopathy; RP-HCM, hypertrophic cardiomyopathy with restrictive phenotype. BMPR2, bone morphogenetic protein receptor type 2; DSP, desmoplakin; FHOD3, formin homology 2 domain containing 3; GAA, acid alpha-glucosidase; HCN4, hyperpolarization activated cyclic nucleotide gated potassium channel 4 Gene; KCNE3, potassium voltage-gated channel subfamily E regulatory subunit 3; LAMP2, lysosomal associated membrane protein 2; MYBPC3, cardiac myosin binding protein C; MYH6, alpha-myosin heavy chain; MYH7, beta-myosin heavy chain; MYL3, myosin light chain 3; PKP2, plakophilin; PTPN11, protein tyrosine phosphatase non-receptor type 11; RBM20, RNA binding motif protein 20; TNNI3, troponin I3, cardiac type; TNNT2, troponin T2, cardiac type; TTN, titin; VCL, vinculin. P, pathogenic; LP, likely pathogenic; VUS, variant uncertain significance.