Spectrum of movement disorders associated with glutaric aciduria type 1: A study of 16 patients

✍ Scribed by Cyril Gitiaux; Emmanuel Roze; Kiyoka Kinugawa; Constance Flamand-Rouvière; Nathalie Boddaert; Emmanuelle Apartis; Vassili Valayannopoulos; Guy Touati; Jacques Motte; David Devos; Karine Mention; Dries Dobbelaere; Diana Rodriguez; Agathe Roubertie; Brigitte Chabrol; François Feillet; Marie Vidailhet; Nadia Bahi-Buisson

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 129 KB
• Volume: 23
• Category: Article
• ISSN: 0885-3185
• DOI: 10.1002/mds.22313

✦ Synopsis

Abstract

Glutaric aciduria type 1 (GA1) is an autosomal recessive neurometabolic disorder due to glutaryl CoA dehydrogenase deficiency. Comprehensive descriptions of GA1‐associated movement disorders are rare. In order to refine the description of the motor phenotype, we prospectively studied 16 consecutive pediatric and adult GA1 patients, focusing on the movement disorders and their time course. In most patients, generalized dystonia, superimposed on baseline axial hypotonia, remained the predominant feature throughout the disease course. With aging, it tended to evolve from mobile to fixed dystonia and to be associated with akinetic‐rigid parkinsonism. Prominent orofacial involvement was a consistent feature in GA1 patients with movement disorders, resulting in speech disorders with features of combined hyperkinetic dysarthria and speech apraxia. The types and outcome of movement disorders in this setting should be taken into consideration during rehabilitation and for patient selection and evaluation in therapeutic trials. © 2008 Movement Disorder Society