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Published on: August 8, 2022
Neuromuscular disorders associated with apical hypertrophic cardiomyopathy
Josef Finsterer1, Claudia Stöllberger
1Krankenanstalt Rudolfstiftung, Vienna, Austria. fifigs1@yahoo.de
Insights
Apical hypertrophic cardiomyopathy (AHC) is rarely linked to neuromuscular disorders (NMDs). Patients with AHC and NMDs have similar outcomes to those with AHC alone, suggesting potential underdiagnosis of NMDs in AHC patients.
Area of Science:
- Cardiology
- Neurology
- Genetics
Background:
- Cardiomyopathy frequently occurs in patients with neuromuscular disorders (NMDs).
- Apical hypertrophic cardiomyopathy (AHC) is a specific form of cardiomyopathy.
Purpose of the Study:
- To determine the frequency of AHC in patients with NMDs.
- To identify specific NMDs associated with AHC.
- To compare patient outcomes between AHC with and without NMDs.
Main Methods:
- A comprehensive literature review was conducted using Medline (PubMed).
- Search terms included AHC, apical hypertrophy, NMD, myopathy, muscular dystrophy, skeletal muscle, and cardiac involvement.
Main Results:
- AHC is infrequently associated with NMDs.
- AHC has been documented in various NMDs, including limb girdle muscular dystrophy, glycogen storage disease, mitochondrial disorders, and metabolic myopathies.
- Patient outcomes for AHC with NMDs did not differ significantly from those with AHC alone.
Conclusions:
- The association between AHC and NMDs is rare.
- Specific NMDs linked to AHC include limb girdle muscular dystrophy, glycogen storage disease, metabolic myopathy, and myopathy of unknown significance.
- The rarity may stem from insufficient systematic neurologic evaluations in AHC patients and vice versa.
Background:
Cardiomyopathy is a frequent manifestation of neuromuscular disorders.
Aims And Objectives:
The aim of this study was to investigate how often apical hypertrophic cardiomyopathy (AHC) is associated with neuromuscular disorders (NMDs), which types of NMDs are associated with AHC, and if the outcome of patients with NMD and AHC is different from those with AHC but without a NMD.
Method:
Literature review by means of a Medline (PubMed) search for the terms AHC, apical hypertrophy, NMD, myopathy, muscular dystrophy, skeletal muscle, and cardiac involvement.
Results:
AHC is only rarely associated with NMDs. So far,AHC has been described in patients with limb girdle muscular dystrophy, glycogen storage disease, mitochondrial disorder, metabolic myopathy, myopathy of unknown significance, eosinophilia-myalgia syndrome, or arthrogryposis multiplex congenita. The outcome of these patients was not at variance from those with AHC but without a NMD.
Conclusions:
AHC is only rarely associated with NMDs, such as limb girdle muscular dystrophy, glycogen storage disease, metabolic myopathy, myopathy of unknown significance, or eosinophilia-myalgia syndrome. The rare association of NMDs with AHC might be due to absence of systematic neurologic investigations of patients with AHC and vice versa.
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Disorders of the Skeletal Muscle
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...

