title: [Late results of ventrolateral thalamotomy in parkinsonism and their mathematical prognosis].
abstract: Among 63 patients with idiopathic parkinsonism treated by ventrolateral thalamotomy 29 had a long survival period (over 8 years) 34 patients died. The mean postoperative survival period was 4.4 years, the mean survival period from time of the manifestation of the first symptoms was 9.6 years. In 10 of 29 patients the disease did not advance (in 8 with the tremor-rigid and in 2 with the rigid form of parkinsonism). From the late-term postoperative results the authors created a model of prognosis of the duration of the effect of the operation on basis of the patients' preoperative condition and the immediate and early results of the operation.
authors.forename: T K
authors.initials: TK
authors.lastname: Asser
authors.forename: A E
authors.initials: AE
authors.lastname: Kaasik
mesh_terms: D000328:Adult; D004564:Electrocoagulation; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D008959:Models, Neurological; D010300:Parkinson Disease / Q000401:mortality / Q000601:surgery*; D011379:Prognosis; D013238:Stereotaxic Techniques; D013787:Thalamic Nuclei / Q000601:surgery*; D013997:Time Factors
vernacular_title: Otdalennye rezul'taty ventrolateral'noĭ talamotomii pri parkinsonizme i ikh matematicheskoe prognozirovanie.