Severe infantile-onset cardiomyopathy associated with a homozygous deletion in desmin

Gerard Piñol-Ripoll, Alexey Shatunov, Ana Cabello, Pilar Larrodé, Iris de la Puerta, Juana Pelegrín, Feliciano J Ramos, Montse Olivé, Lev G Goldfarb

    Research output: Contribution to journalArticlepeer-review

    56 Citations (Scopus)

    Abstract

    Desminopathy is a genetically heterogeneous disorder with autosomal dominant pattern of inheritance in most affected families; the age of disease onset is on average 30 years. We studied a patient with a history of recurrent episodes of syncope from infancy who later developed second-degree AV block and restrictive cardiomyopathy; she subsequently suffered several episodes of ventricular tachyarrhythmia requiring implantation of bicameral defibrillator. Neurological examination revealed rapidly progressive bilateral facial weakness, winging of the scapulae, symmetric weakness and atrophy of the trunk muscles, shoulder girdle and distal muscles of both upper and lower extremities. Muscle biopsy demonstrated signs of myofibrillar myopathy with prominent subsarcolemmal desmin-reactive aggregates. Molecular analysis identified a homozygous deletion in DES resulting in a predicted in-frame obliteration of seven amino acids (p.R173_E179del) in the 1B domain of desmin. We describe the youngest known desminopathy patient with severe cardiomyopathy and aggressive course leading to the devastation of cardiac, skeletal and smooth musculature at an early age.

    Original languageEnglish
    Pages (from-to)418-22
    Number of pages5
    JournalNeuromuscular Disorders
    Volume19
    Issue number6
    DOIs
    Publication statusPublished - Jun 2009

    Keywords

    • Age of Onset
    • Cardiomyopathies
    • DNA Mutational Analysis
    • Defibrillators, Implantable
    • Desmin
    • Electrocardiography
    • Female
    • Heart
    • Homozygote
    • Humans
    • Infant
    • Muscles
    • Sequence Deletion
    • Case Reports
    • Journal Article
    • Research Support, N.I.H., Extramural
    • Research Support, N.I.H., Intramural
    • Research Support, Non-U.S. Gov't

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