PAROXYSMAL DYSTONIA
\pˈaɹəksˌɪsmə͡l dɪstˈə͡ʊni͡ə], \pˈaɹəksˌɪsməl dɪstˈəʊniə], \p_ˈa_ɹ_ə_k_s_ˌɪ_s_m_əl d_ɪ_s_t_ˈəʊ_n_iə]\
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A persistent attitude or posture due to the co-contraction of agonists and antagonist muscles in one region of the body. It most often affects the large axial muscles of the trunk and limb girdles. Conditions which feature persistent or recurrent episodes of dystonia as a primary manifestation of disease are referred to as DYSTONIC DISORDERS. (Adams et al., Principles of Neurology, 6th ed, p77)
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