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Biomedical subjects

G Pfeiffer

Publications and source records attributed to G Pfeiffer.

80 records · Page 5Linked to original sources

Neurophysiology of orthostatic tremor. Influence of transcranial magnetic stimulation.

A 74-year-old patient suffers from painful muscle cramps when he stands since 30 years. He has no visible tremor but 16 Hz burst activity on EMG, indicating orthostatic tremor. Previous diagnosis was hysteria, stiff person syndrome or dystonia. This shows that EMG during standing should be part of the examination of patients with stiff muscles or muscle cramps. Tremor was not strictly orthostatic. It appeared in back muscles while sitting, when the patient supported a weight with outstretched arms. Phase between muscles differed between normal standing and standing on heels. Subthreshold transcranial magnetic stimulation modulated timing of the tremor bursts and inhibited them at higher intensity stimulation.

Aged↗

[Psychological effect of corrective surgery in female patients with structural and functional abnormalities of the jaws].

20 young women (16 to 31 years of age) who underwent orthognatic surgery between 1979 and 1984 were subjected to an evaluation of their dental, orthognatic and psychological catamneses. The psychological results concerning operation motivation, preoperative stress and information, early postoperative condition and subjective assessment of the operative result are reported and discussed. Proposals are made to improve pre- and postoperative treatment of these patients.

Adolescent↗