[Clinicoelectroneuromyographic study of neuromuscular syndromes combined with connective tissue pathology].

An electroneuromyographic examination of 132 patients with pseudohypertrophic and myosclerotic forms of myodystrophies, collagenoses, mucopolysaccharidoses, Marfan's disease, and Chernogubov-Ehlers-Danlos' disease was carried out. A relationship between the duration of the M-response potential and the state of the interstitial connective tissue of the skeletal muscles was revealed. This duration appeared to be longer in cases of proliferation, sclerosis, and fibrosis of the interstitial tissue, and shorter in cases of a deficiency of the collagen fibres and increase of their elasticity.