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.