Journal of the neurological sciences · 2017
Long-term clinical outcome of bilateral pallidal stimulation for intractable craniocervical dystonia (Meige syndrome). Report of 6 patients.
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Sobstyl Michał, Brzuszkiewicz-Kuźmicka Grażyna, Zaczyński Artur, Pasterski Tomasz, Aleksandrowicz Marta, Ząbek Mirosław
Аннотация
BACKGROUND: The aim of the present study was to report the short-term as well long-term results of bilateral pallidal stimulation in 6 consecutive patients for severe debilitating craniocervical dystonia (Meige syndrome) using Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS).
METHODS: We evaluated 6 consecutive patients with the diagnosis of intractable long-standing craniocervical dystonia. The formal objective assessment included the motor and disability BFMDRS scores. The BFMDRS assessment was performed before and after it roughly annually up to 60months when bilateral pallidal stimulation was switched on and compared to baseline BFMDRS scores. We present short-term (3months postoperatively) follow-up as well long-term (from 6 to 60months) results. Baseline BFMDRS scores and subsequent follow-up BFMDRS scores were compared with the use of a Wilcoxon signed-rank test for matched pairs. A two-tailed probability level of 5% (p<0.05) was considered significant.
RESULTS: Bilateral GPi DBS improved the BFMDRS total movement score by 65% at short-term follow-up and by 53% at long-term follow-up when compared to baseline scores. Subscores for eyes at short-term follow-up were reduced by 78%, for mouth by 58%, and for speech/swallowing by 49%. This improvements for individual subscores were maintained at long-term follow-up and were as follows for eyes by 67%, mouth by 50% and speech/swallowing by 39%. The BFMDRS disability score was reduced by 48% at short-term follow-up and by 55% at long-term follow-up when compared to baseline scores.
CONCLUSION: Our results showed that bilateral GPi DBS in craniocervical dystonia is effective and safe. Phasic dystonic movements like blepharospasm or oromandibular dystonia responded very fast and favorable to pallidal stimulation reducing disabilities.
METHODS: We evaluated 6 consecutive patients with the diagnosis of intractable long-standing craniocervical dystonia. The formal objective assessment included the motor and disability BFMDRS scores. The BFMDRS assessment was performed before and after it roughly annually up to 60months when bilateral pallidal stimulation was switched on and compared to baseline BFMDRS scores. We present short-term (3months postoperatively) follow-up as well long-term (from 6 to 60months) results. Baseline BFMDRS scores and subsequent follow-up BFMDRS scores were compared with the use of a Wilcoxon signed-rank test for matched pairs. A two-tailed probability level of 5% (p<0.05) was considered significant.
RESULTS: Bilateral GPi DBS improved the BFMDRS total movement score by 65% at short-term follow-up and by 53% at long-term follow-up when compared to baseline scores. Subscores for eyes at short-term follow-up were reduced by 78%, for mouth by 58%, and for speech/swallowing by 49%. This improvements for individual subscores were maintained at long-term follow-up and were as follows for eyes by 67%, mouth by 50% and speech/swallowing by 39%. The BFMDRS disability score was reduced by 48% at short-term follow-up and by 55% at long-term follow-up when compared to baseline scores.
CONCLUSION: Our results showed that bilateral GPi DBS in craniocervical dystonia is effective and safe. Phasic dystonic movements like blepharospasm or oromandibular dystonia responded very fast and favorable to pallidal stimulation reducing disabilities.