Fatal congenital hypertrophic cardiomyopathy

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Fatal congenital hypertrophic cardiomyopathy due to glycogen storage disease

ORPHA:439854Disease

Also called Fatal congenital hypertrophic cardiomyopathy due to glycogenosis · Fatal congenital hypertrophic cardiomyopathy due to GSD

What it is

A rare glycogen storage disease characterized by fetal or neonatal onset of severe cardiomyopathy with non-lysosomal glycogen accumulation and fatal outcome in infancy. Patients present with massive cardiomegaly, severe cardiac and respiratory complications, and failure to thrive. Non-specific facial dysmorphism, bilateral cataracts, macroglossia, hydrocephalus, enlarged kidneys, and skeletal muscle involvement have been reported in some cases.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Antenatal, Neonatal
Inheritance
Not applicable
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Gene

PRKAG2Disease-causing germline mutation(s)

ICD-10 codes

E74.0filed under a broader ICD-10 category — shared with 36 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references

GARD 10728MESH C564888MONDO 0009867OMIM 261740UMLS C1849813

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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