Psychiatric symptoms are common in neurodevelopmental movement disorders, including some types of dystonia. However, research has mainly focused on motor manifestations and underlying circuits. Myoclonus-dystonia is a rare and homogeneous neurodevelopmental condition serving as an illustrative paradigm of childhood-onset dystonias, associated with psychiatric symptoms.
View Article and Find Full Text PDFBackground: Movement disorders are frequent in patients with inborn errors of metabolism (IEMs) but poorly recognized, particularly by nonmovement disorder specialists. We propose an easy-to-use clinical screening tool to help recognize movement disorders.
Objective: The aim is to develop a user-friendly rapid screening tool for nonmovement disorder specialists to detect moderate and severe movement disorders in patients aged ≥4 years with IEMs.
Background: Though uncommon, primary movement disorders can occur in pregnancy, the most common being restless legs syndrome and chorea gravidarum [1]. New onset dystonia in pregnancy has been reported four times previously with a resolution of symptoms within six months of delivery [2345]. Exacerbation of pre-existing movement disorders and the onset of de novo movement disorders during pregnancy support the hypothesis that female sex hormones play an important role in the regulation of basal ganglia circuitry.
View Article and Find Full Text PDFAutosomal dominant epilepsy with auditory features (OMIM 600512) is characterised by focal seizures with distinctive auditory auras and/or ictal aphasia. We describe a 17-year-old girl with recurrent attacks of ictal aphasia and rare nocturnal convulsions. She had a four-generation paternal family history of epilepsy.
View Article and Find Full Text PDFLong-term effects of continuous subcutaneous apomorphine infusion (CSAI) on health-related quality of life (HRQoL) and predictors of CSAI discontinuation are poorly known. Data from consecutive advanced Parkinson's disease patients treated in routine care were retrospectively collected over 24 months after CSAI initiation, with a focus on the 39-item Parkinson's disease questionnaire (PDQ-39). We determined predictors of CSAI discontinuation and HRQoL improvement using multiple regression analysis.
View Article and Find Full Text PDFBackground: Neurophobia is a chronic disease of medical students and junior doctors. Early detection is needed to facilitate prevention and management as this fear can negatively impact patient care.
Methods: We conducted a two-part mono-centric study at the faculty of Medicine, Sorbonne University, in Paris.
Objective: Progressive myelopathy causes severe handicap in men with adrenomyeloneuropathy (AMN), an X-linked disorder due to ABCD1 pathogenic variants. At present, treatments are symptomatic but disease-modifying therapies are under evaluation. Given the small effect size of clinical scales in AMN, biomarkers with higher effect size are needed.
View Article and Find Full Text PDFChildhood-onset movement disorders represent a heterogenous group of conditions. Given the complexity of these disorders, the transition of care from pediatric to adult medicine is an important consideration. We performed a scoping review of the literature on transitional care in chronic neurological disease, exploring key transitional issues and proposed transitional care models.
View Article and Find Full Text PDFTremor Other Hyperkinet Mov (N Y)
October 2021
Background: Abnormal temporal discrimination in cervical dystonia is hypothesized to be attributable to disrupted processing in the superior colliculus. The fast, luminance-based, retinotectal pathway, projects to the superior colliculus; chromatic stimuli responses, by the retino-geniculo-calcarine pathway, are up to 30 ms longer.
Objectives: We sought to interrogate visual processing and reaction times in patients with cervical dystonia compared with healthy controls.
Annu Int Conf IEEE Eng Med Biol Soc
July 2019
Understanding the neuronal network dynamics underlying the third most common movement disorder, cervical dystonia, can be achieved using dynamic causal modelling. Current literature establishes structures of the midbrain network for covert attentional orienting as dysfunctional in patients with cervical dystonia. One of these structures is the superior colliculus, for which it is hypothesised that deficient GABAergic activity therein causes cervical dystonia.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
July 2019
Cervical Dystonia (CD) is a neurological movement disorder characterized by intermittent muscle contractions in the head and neck. The pathophysiology and neural networks underpinning this condition are incompletely understood. There is increasing evidence that isolated focal dystonias are due to network-wide functional alterations.
View Article and Find Full Text PDFBackground: Abnormal sensory processing, including temporal discrimination threshold, has been described in various dystonic syndromes.
Objective: To investigate visual sensory processing in DYT-SGCE and identify its structural correlates.
Methods: DYT-SGCE patients without DBS (DYT-SGCE-non-DBS) and with DBS (DYT-SGCE-DBS) were compared to healthy volunteers in three tasks: a temporal discrimination threshold, a movement orientation discrimination, and movement speed discrimination.
Objective: To characterize the full spectrum, relative frequency, and prognosis of the neurologic manifestations in Zika virus (ZIKV) postnatal infection.
Methods: We conducted an observational study in consecutive ZIKV-infected patients presenting with neurologic manifestations during the French West Indies 2016 outbreak.
Results: Eighty-seven patients, including 6 children, were enrolled.
An abnormal temporal discrimination threshold in cervical dystonia (CD) is considered to be a mediational endophenotype; in unaffected relatives it is hypothesized to indicate non-manifesting gene carriage. The pathogenesis underlying this condition remains unknown. Investigation of the neural networks involved in disordered temporal discrimination may highlight its pathomechanisms.
View Article and Find Full Text PDFBackground: "JUMP" is a multidisciplinary program based at the Pitie-Salpêtrière Hospital Paris that transitions young adults with chronic neurological conditions from paediatric to adult healthcare. Transitional care programs have been shown to improve medical, educational and psychosocial outcomes for adolescent patients.
Methods: Demographic details and health-related variables of all patients referred to the JUMP program were collected.
Basic examination and diagnostic skills in neurology are important for every graduating medical student. However, a majority of medical students consider neurology as complex and difficult to master. We evaluate the impact a learner-friendly, innovative simulation-based training programme has on long-term retention and delayed recall of neurological semiology amongst third-year medical students from the University Pierre et Marie Curie in Paris, France.
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