[Electromyography in function disorders of the cricothyroid muscle following trauma and strumectomy].

32 patients with a disturbed function of the cricothyroid muscle were examined electromyographically and some also electroneurographically. Thyroid surgery had preceded in 22 patients and a traumatic lesion in 10 patients. Clinical observation showed that all patients suffered from an instability and lowering of the speaking voice as well as a reduction of vocal range.

[Diagnostic value of clinical study methods in syringomyelia].

Between 1968 and 1981 52 patients with syringomyelia were investigated clinically and with several additional procedures. The introduction of computerized axial tomography (CAT) has led to a change in diagnostic measurements in this disease. Therefore it has become necessary to evaluate the usefulness of additional investigations made in recent past.

[Posttraumatic syringomyelia].

Communications on posttraumatic syringomyelia, a late sequel of complete or incomplete paraplegia or even tetraplegia, are rather infrequently in German literature. The problems of this well known complication occurring several months, years or even decades after a severe spinal cord trauma are discussed by two own cases. Both patients suffering from paraplegia developed signs and symptoms of posttraumatic syringomyelia 6 months and 3 years respectively after the accident.

Neurological complications of Grönblad-Strandberg syndrome.

Neurological complications resulting from pronounced cerebrovascular changes were observed in a 59-year-old female suffering from Grönblad-Strandberg syndrome. In addition to typical skin changes of the pseudoxanthoma elasticum and ocular alterations (exudative macular degeneration and angioid streaks) there were an unusual number of disturbed endocrinological functions. The ophthalmological findings revealed characteristic breaks in Bruch's membrane, proliferation of chorioidal vessels into the subretinal space, hyperplasia of retinal pigment epithelium and disciform macular degeneration.

[Telemetric electromyography in kinesiological investigations in neurology].

Telemetrical electromyographical investigations were performed in 23 healthy subjects and 33 patients with various diseases of the extrapyramidal system. The comparison of our findings leads to electromyographic criteria in the differential diagnosis of these disorders. As the majority of previous investigations with this method centered on questions concerning functional anatomy, a number of modifications were introduced to apply telemetrical methods to neurological problems.

[Electromyographic study in extrapyramidal motor disorders].

Standardized patterns of examination were developed in order to differentiate the disorders of the extrapyramidal system by means of electromyography. Pathological muscle activity was registered by stationary electromyography during rest, maintained posture, directed movements and passive extremity-excursions. Telemetric electromyography using eight-channel-biotelemetry-equipment showed pathological patterns of innervation in movements which are connected with migration such as walking.

[Lesions of the peripheral nerves in Wilson's disease. Electrodiagnostic findings (author's transl)].

Electrodiagnostical studies were carried out on three patients with Wilson's disease. The motor nerve conduction velocity was low but not markedly decreased. Some values of the sensory conduction velocity were decreased; the sensory action potentials showed low amplitudes and contained large amounts of late phases.

[Idiopathic and sclerodermic facial hemiatrophy with generalized myopathy. Clinical, electromyographic and histologic examinations of six patients].

Six patients with facial hemiatrophy (H.f) were thoroughly examined by clinical and laboratory investigations. Two were found to have idiopathic and four facial hemiatrophy due to different types of localized scleroderma.

[Electromyographic studies on the effect of the cinnamamide derivative LCB-29 in spastic syndromes (author's transl)].

In ten patients with para- or tetraspastic syndromes of various etiology 5 different spastic phenomena demonstrating pathologically raised excitability of muscle regulation functions were registered electromyographically before and 1 h after i.v. administration of N-(hydroxy-2-ethyl)-cinnamamide (LCB-29).

[Brachial plexus injuries caused by motor-cycle accidents- catamneses (author's transl)].

During the last eight years we examined 45 patients, mostly juvenile, with brachial plexus injuries arising from motor-cycle and moped accidents. The neurological findings, radiological picture on the myelogramme, sanguineous fluid, different electrodiagnostic examinations and sweat secretion tests provided information on the location of the lesion and the defects to be expected at a later date. However, no method permitted determination of the total extent of the damage.