title: [Essential tremor: a follow-up study].
abstract: 41 patients who had been diagnosed as having essential tremor at least two years previously have been controlled. In 39 cases this diagnosis was confirmed. One patient was completely symptom-free after bilateral thalamotomy and another patient was now considered to have Parkinson's disease which had been discussed already four years before. 61% of the patients gave a positive family history for essential tremor, only two had non-first degree relatives suffering from Parkinson's disease. The present study does not provide any evidence for a correlation between essential tremor and Parkinson's disease. However, it should be noted that discrete other "extrapyramidal" signs may occasionally be found in patients having essential tremor.
authors: Neurologische Universitätsklinik, Bern.
authors: I M
authors: IM
authors: Taddei
authors: H P
authors: HP
authors: Ludin
mesh_terms: D000328:Adult; D000368:Aged; D001480:Basal Ganglia Diseases / Q000175:diagnosis / Q000235:genetics*; D005260:Female; D005500:Follow-Up Studies; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination; D010300:Parkinson Disease / Q000235:genetics; D014202:Tremor / Q000175:diagnosis / Q000235:genetics*
vernacular_title: Der essentielle Tremor: eine katamnestische Untersuchung.