20
Treatment
6.9. Individuals Who Are Genotype-Positive, Phenotype-
Negative
COR LOE
Recommendations
1 B-NR
1. In individuals who are genotype-positive, phenotype-negative
for HCM, serial clinical assessment, electrocardiography,
and cardiac imaging are recommended at periodic intervals
depending on age (every 1 to 2 years in children and
adolescents and every 3 to 5 years in adults) and change in
clinical status (Figure 1, Figure 2, Table 6).
2a B-NR
2. In individuals who are genotype-positive, phenotype-negative
for HCM, participation in competitive sports of any intensity
is reasonable.
3: No
benefit
B-NR
3. In individuals who are genotype-positive, phenotype-negative
for HCM, ICD is not recommended for primary prevention.
