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Carnitine palmitoyl transferase II deficiency, severe infantile form

Synonyms
CARNITINE PALMITOYLTRANSFERASE II DEFICIENCY WITH HYPOKETOTIC HYPOGLYCEMIA; CARNITINE PALMITOYLTRANSFERASE II DEFICIENCY, HEPATOCARDIOMUSCULAR; CPT II DEFICIENCY, HEPATIC; CPT II deficiency, infantile; CPT2 DEFICIENCY, INFANTILE; Carnitine palmitoyltransferase II deficiency, infantile
Modes of inheritance
Autosomal recessive inheritance (Orphanet)

Summary

Excerpted from the GeneReview: Carnitine Palmitoyltransferase II Deficiency
Carnitine palmitoyltransferase II (CPT II) deficiency is a disorder of long-chain fatty-acid oxidation. The three clinical presentations are lethal neonatal form, severe infantile hepatocardiomuscular form, and myopathic form (which is usually mild and can manifest from infancy to adulthood). While the former two are severe multisystemic diseases characterized by liver failure with hypoketotic hypoglycemia, cardiomyopathy, seizures, and early death, the latter is characterized by exercise-induced muscle pain and weakness, sometimes associated with myoglobinuria. The myopathic form of CPT II deficiency is the most common disorder of lipid metabolism affecting skeletal muscle and the most frequent cause of hereditary myoglobinuria. Males are more likely to be affected than females.
Full text of GeneReview (by section):
Summary
Diagnosis
Clinical Characteristics
Genetically Related (Allelic) Disorders
Differential Diagnosis
Management
Genetic Counseling
Resources
Molecular Genetics
Chapter Notes
References
Authors:
Thomas Wieser
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Available tests

97 tests are in the database for this condition.

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Clinical tests (97 available)

Biochemical Genetics Tests

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: CPT1, CPTASE, IIAE4, CPT2
    Summary: carnitine palmitoyltransferase 2

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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Reviews

Clinical resources

Practice guidelines

  • ACMG ACT, 2022
    American College of Medical Genetics and Genomics, Newborn Screening ACT Sheet, Increased C16 and/or C18:1 Acylcarnitine, Carnitine Palmitoyltransferase II (CPT II) Deficiency and Carnitine Acylcarnitine Translocase (CACT) Deficiency, 2022
  • ACMG Algorithm, 2022
    American College of Medical Genetics and Genomics, Algorithm, C16 +/- C18:1 Elevated: CPT II or CACT, 2022

Molecular resources

Consumer resources

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