Volume 28, Issue 1 (1-2014)                   Med J Islam Repub Iran 2014 | Back to browse issues page

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Miri S, Ghoreyshi E, Shahidi G A, Parvaresh M, Rohani M, Saffari M. Deep brain stimulation of globuspallidusinternus for DYT1 positive primary generalized dystonia. Med J Islam Repub Iran 2014; 28 (1) :119-123
URL: http://mjiri.iums.ac.ir/article-1-2276-en.html
Iran University of Medical Sciences, Department of Neurology, Rasool-Akram Hospital, Tehran, Iran. , mohammadroohani@gmail.com
Abstract:   (4108 Views)

  Background : Deep brain stimulation (DBS) of the globuspallidusinternus (GPi) is recommended as a promising technique for the management of the primary generalized dystonia (PGD) with DYT1 gene mutation. We present the first report of DBS results in Iranian patients with DYT1 positive PGD.

  Methods : Nine patients who suffered from severely disabling DYT1 positive PGD consecutively were recruited for the study between 2008 and 2010. The patients underwent bilateral deep brain stimulation of the GPi in a single procedure. The mean follow up duration was 8.8 ± 2.2 months. The efficacy of the intervention was evaluated by comparing pre- and post operative scores of patients with Burke-Fahn-Marsden's dystonia Scale (BFMDS). Statistical analysis was performed using SPSS 11.0 software.

  Results: Of 9 patients six were female with the mean age of 15.2 ± 5.5 years old (range: 8- 25 years old). The mean for Burke-Fahn-Marsden's Dystonia Rating Scale (BFMDRS) score was 47.22 ± 14.1 before surgery and 12.3 ± 8.2 after follow up, which significantly improved (P=0.0001).The mean stimulation parameters at the last visit were at a frequency of 152.2 ± 32.4 Hz (range 130- 230 Hz), a voltage of 2.6 ± 0.7 V (range 1.1- 4), and a pulse width of 60 μsec. No complication was observed during follow up.

  Conclusion: Bilateral DBS of the GPi has an encouraging result for the management of DYT1 positive PGD and is recommended as a safe technique for the treatment of these patients. Shorter pulse width in stimulation parameters is suggested for DYT1 dystonia patients.

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Type of Study: Original Research | Subject: Neurology

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