Quality of life following DBS in the caudal zona incerta in patients with essential tremor

Background: Essential tremor (ET) is the most common movement disorder and oftenaffects the quality of life. There are only a few studies evaluating the quality of life after deepbrain stimulation (DBS). Findings: This is a prospective study of 16 patients undergoing deep brain stimulation in thecaudal Zona incerta (cZi). The quality of life was assessed with Quality of Life in EssentialTremor Questionnaire (QUEST) and SF-36 scores and the tremor was evaluated using theessential tremor rating scale (ETRS). Results: In the tremor rating hand tremor on the treated side improved by 95%, hand functionby 78% and activities of daily living improved by 74%. The QUEST score showedstatistically significant improvements in the psychosocial and activities of daily livingsubscores. The SF-36 score did not show any significant improvement. Conclusions: Although very good tremor reduction was achieved, the improvement in thequality of life scores was more modest. This could partly be explained by the quality of lifebeing affected by other factors than the tremor itself.

Av författaren/redakt...: Sandvik, Ulrika, ...; Hariz, Gun-Marie; Blomstedt, Patri ...

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Neurologi

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