Neuromuscular disorders associated with apical hypertrophic cardiomyopathy

Josef Finsterer1, Claudia Stöllberger

  • 1Krankenanstalt Rudolfstiftung, Vienna, Austria. fifigs1@yahoo.de

Acta Cardiologica
|March 26, 2009
PubMed

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.
Abstract

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