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Ganos, C; Aguirregomozcorta, M; Batla, A; Stamelou, M; Schwingenschuh, P; Münchau, A; Edwards, MJ; Bhatia, KP.
Psychogenic paroxysmal movement disorders--clinical features and diagnostic clues.
Parkinsonism Relat Disord. 2014; 20(1):41-46 [OPEN ACCESS]
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Autor/innen der Med Uni Graz:
Schwingenschuh Petra
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Abstract:
The diagnosis of psychogenic paroxysmal movement disorders (PPMD) can be challenging, in particular their distinction from the primary paroxysmal dyskinesias (PxD) remains difficult. Here we present a large series of 26 PPMD cases, describe their characteristics, contrast them with primary PxD and focus on their distinguishing diagnostic features. Mean age at onset was 38.6 years, i.e. much later than primary PxD. Women were predominantly affected (73%). Most subjects (88.4%) had long attacks, and unlike primary PxD there was a very high within-subject variability for attack phenomenology, duration and frequency. Dystonia was the most common single movement disorder presentation, but 69.2% of the patients had mixed or complex PxD. In 50% of PPMD cases attack triggers could be identified but these were unusual for primary PxD. 42.3% of patients employed unusual strategies to alleviate or stop the attacks. Response to typical medication used for primary PxD was poor. Precipitation of the disorder due to physical or emotional life events and stressors were documented in 57.6% and 65.3% of the cases respectively. Additional interictal psychogenic signs were documented in 34.6% and further medically unexplained somatic symptoms were present in 50% of the cases. 19.2% of patients had a comorbid organic movement disorder and 26.9% had pre-existing psychiatric comorbidities. Although the phenotypic presentation of PPMD can be highly diverse, certain clinical characteristics help in distinguishing this condition from the primary forms of PxD. Recognition is important as multidisciplinary treatment approaches led to significant improvement in most cases. Copyright © 2013 The Authors. Published by Elsevier Ltd.. All rights reserved.
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Paroxysmal dyskinesias
Psychogenic movement disorders
PKD
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PED
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