Diaphragm Ultrasound in Neuromuscular Disorders

Muscular dystrophies are neurologic disease with higher morbidity and mortality. Cardiac function and respiratory muscles can be affected, in addition with skeletal muscle deficiency . Lung function is classically assessed with functionnal pulmonary tests (FPT) . Ultrasound recently emerged as a non-invasive tool to assess diaphragm function. The aims of the study are: * to provide the spectrum of diaphragm ultrasound in patients with muscular dystrophies * to assess the correlation between diaphragm ultrasound and FPT * to assess the correlation between diaphragm ultrasound and cardiac function