Clinical neuropharmacology · 2021
Botulinum Toxin Monotherapy for the Treatment of Essential Tremor: Life Quality Effect.
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Demiryurek Bekir Enes
Аннотация
AIM: This study aims to evaluate the effectiveness of botulinum toxin therapy, as a monotherapy, and its effect on quality of life in patients with essential tremor (ET) who are resistant to medical treatment or cannot tolerate optimum drug doses in the population.
METHOD: This retrospective research was conducted between February 2019 and December 2019 with 15 adult patients (9 men and 6 women) in the 50-to-70 age group, who had a definite diagnosis of ET as evaluated by the same clinician. With the help of electroneuromyography, intramuscular onabotulinum toxin A (BoNT-A) injection was administered to the related muscles, not exceeding 100 U in total. Demographic characteristics and duration of disease of all patients were recorded. The tremor severity of patients before the injection, 1 month after the injection, and 3 months after the injection was assessed by the Fahn-Tolosa-Marín Tremor Rating Scale (FTM-TRS), applied by the same clinician during the face-to-face interviews, in addition to the Questionnaire for Essential Tremor (QUEST), which was filled out by participants.
RESULTS: The first month and third month mean QUEST and FTM-TRS scores were statistically lower than that before the procedure in patients with ET after BoNT-A injection (P = 0.001, P = 0.001, P = 0.001, and P = 0.001). In addition, the mean FTM-TRS and QUEST scores for the first month after the procedure were significantly lower than the mean FTM-TRS and QUEST scores for the third month (P = 0.005 and P = 0.007).
CONCLUSION: We believe that our study is valuable because there is no research on the effect of BoNT-A administration on ET treatment in the our country population and because the effect of BoNT-A treatment on quality of life in patients with ET was evaluated using the ET-specific QUEST scale.
METHOD: This retrospective research was conducted between February 2019 and December 2019 with 15 adult patients (9 men and 6 women) in the 50-to-70 age group, who had a definite diagnosis of ET as evaluated by the same clinician. With the help of electroneuromyography, intramuscular onabotulinum toxin A (BoNT-A) injection was administered to the related muscles, not exceeding 100 U in total. Demographic characteristics and duration of disease of all patients were recorded. The tremor severity of patients before the injection, 1 month after the injection, and 3 months after the injection was assessed by the Fahn-Tolosa-Marín Tremor Rating Scale (FTM-TRS), applied by the same clinician during the face-to-face interviews, in addition to the Questionnaire for Essential Tremor (QUEST), which was filled out by participants.
RESULTS: The first month and third month mean QUEST and FTM-TRS scores were statistically lower than that before the procedure in patients with ET after BoNT-A injection (P = 0.001, P = 0.001, P = 0.001, and P = 0.001). In addition, the mean FTM-TRS and QUEST scores for the first month after the procedure were significantly lower than the mean FTM-TRS and QUEST scores for the third month (P = 0.005 and P = 0.007).
CONCLUSION: We believe that our study is valuable because there is no research on the effect of BoNT-A administration on ET treatment in the our country population and because the effect of BoNT-A treatment on quality of life in patients with ET was evaluated using the ET-specific QUEST scale.