Emery–Dreifuss muscular dystrophy
muscular dystrophy that chiefly affects muscles used for movement (skeletal) and heart (cardiac) muscle
Emery–Dreifuss muscular dystrophy (EDMD) is a type of muscular dystrophy, a group of heritable diseases that cause progressive impairment of muscles. EDMD affects muscles used for movement (skeletal muscles), causing atrophy, weakness, and contractures. It almost always affects the heart, causing abnormal rhythms, heart failure, or sudden cardiac death. It is rare, affecting 0.39 per 100,000 (1 per 250,000) people. It is named after Alan Eglin H. Emery and Fritz E. Dreifuss.
Classification
Emery–Dreifuss muscular dystrophy can be sub-classified by pattern of inheritance: X-linked, autosomal dominant, and autosomal recessive.
Autosomal dominant: heart problems with weakness (and wasting) of skeletal muscles and Achilles tendon contractures.
X-linked: result of the EMD gene mutation, characterized by cardiac involvement.
Autosomal recessive: characterized by cardiac issues, such as arrhythmia.
Signs and symptoms
The classic triad of EDMD consists of early contractures, muscle weakness, and heart involvement, typically manifesting in adolescence.
Begin with the source’s own compact description: “Emery–Dreifuss muscular dystrophy” is muscular dystrophy that chiefly affects muscles used for movement (skeletal) and heart (cardiac) muscle. The dossier treats that line as a proposition to test through Emery, Dreifuss and muscular, not as a finished interpretation.
Why this record matters
The phrase “muscular dystrophy that chiefly affects muscles used for movement (skeletal) and heart (cardiac) muscle” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Aug 25, 2026. The linked authority identifier is Q1335642.
Official terminology may obscure informal participation, dissent or communities documented only indirectly. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Emery–Dreifuss muscular dystrophy” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.