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Related Experiment Video

Updated: Jan 22, 2026

Measurements of Motor Function and Other Clinical Outcome Parameters in Ambulant Children with Duchenne Muscular Dystrophy
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Association between pulmonary function and left ventricular volume and function in duchenne muscular dystrophy.

Arshjot Khokhar1, Athira Nair2, Vishal Midya3

  • 1Penn State College of Medicine, Hershey, Pennsylvania, USA.

Muscle & Nerve
|June 29, 2019
PubMed
Summary

Duchenne muscular dystrophy (DMD) patients show similar rates of decline in respiratory function and left ventricular (LV) function. This suggests that pulmonary and cardiac issues in DMD progress in parallel.

Keywords:
Duchenne muscular dystrophyforced vital capacityleft ventricular ejection fractionleft ventricular end-diastolic volumepulmonary function test

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Area of Science:

  • Cardiology
  • Pulmonology
  • Neuromuscular Disorders

Background:

  • Duchenne muscular dystrophy (DMD) involves the absence of dystrophin, affecting skeletal muscles and heart.
  • Progressive respiratory and left ventricular (LV) insufficiencies are observed in DMD patients.

Purpose of the Study:

  • To investigate if respiratory and LV functional declines in DMD are parallel and interrelated.
  • To compare the rate of decline in pulmonary function tests (PFTs) and LV echocardiographic estimates.

Main Methods:

  • Retrospective chart review of 27 patients diagnosed with DMD.
  • Comparison of annual decline rates in PFT measures (e.g., FEV1, FVC) and LV parameters (e.g., LVEDV, LVEF).

Main Results:

  • No significant difference was found in the annual rates of decline between PFTs and LV estimates.
  • Strong intercorrelations were observed among PFT measures of ventilatory function.
  • Weak but statistically significant correlations were found between PFTs and LV estimates.

Conclusions:

  • The comparable rates of decline in PFTs and LV indices support the hypothesis of concurrently progressive deterioration in respiratory and cardiac functions in DMD.
  • Findings suggest an interconnected progression of pulmonary and left ventricular dysfunction in Duchenne muscular dystrophy.