View clinical trials related to Dystonic Disorders.
Filter by:Cervical dystonia is the most common form of focal dystonia in adults (50-82%). It manifests itself by a abnormal attitude of the head, intermittent or permanent, due to involuntary contraction of the cervical muscles which appears or is accentuated on the occasion of voluntary movement and maintenance posture. The distribution of dystonic muscles is specific to each patient explaining the diversity of patterns encountered. The therapeutic management of DC is essentially local and symptomatic. It is based on the realization of injections of neuro botulinum toxin (BoNT) targeting target (dystonic) muscles responsible for involuntary movements or posture abnormal. Identifying the muscles involved is a step prerequisite for therapeutic intervention.The obliquus capitis inferior (OCI) also known as Lower Oblique belongs to the group of suboccipital muscles.It is the only suboccipital muscle that does not attach to the skull. Its unilateral contraction causes ipsilateral rotation of C1 therefore of the head. The length of the transverse process of the atlas gives it considerable rotary efficiency. It is described as the cephalic rotation starter muscle. It would perform the 30 first degrees of rotation. The rotation of the whole column cervical would then be continued by the synergistic action of the muscle contralateral sternocleidomatoid and Spl. ipsilateral. The level of joint complex C1-C2 the amplitude of rotation corresponds to approximately 50% of the total rotation of the cervical spine. In order to better understand the part played by the OCI muscle in the disorganization of posture and cervical movements in the axial plane (plane of rotation) in the rotary DC, the investigators want biomechanically analyze its function in pathological situation. The physiology of this muscle is richly documented in healthy subjects. But does this knowledge apply in DC? Acquisition of imagery by the "Cone Beam" or CBCT system (Cone Beam Computed Tomography) before and 5 weeks after the injection of BoNT, will allow the analysis of the displacement of each vertebrate.
Cervical dystonia (CD) is a common movement disorder. Despite the optimization of botulinum toxin injection (BoNT-A) parameters including muscle selection and dosing, a significant proportion of patients report low levels of satisfaction, and a few of them develop resistance to therapy. The only options for such patients would be invasive therapy such as pallidotomy or pallidal deep brain stimulation. Currently, studies are going on the effectiveness of noninvasive neurostimulation in different neurological disorders. Transcranial Direct Current Stimulation (tDCS) or transcranial pulsed current stimulation (tPCS) are known to be safe non-invasive intervention with almost no side effects that can be used to provide complementary treatment. To detect the dysfunctional regions five min resting state quantitative EEG (qEEG) eyes closed will be recorded and analyzed each time before and after noninvasive stimulation. The investigators will evaluate the efficacy of acute noninvasive stimulation in those CD patients who are already on 3 monthly BoNT-A therapy but the effect of BoNT-A is wearing off in 8 weeks. Kinematics (static and dynamic movements) of neck movements will be recorded using established technology before and after stimulation.
To generate pilot data to investigate the potential to use in vivo iron- and neuromelanin-quantification as imaging tools for the diagnostic evaluation of movement disorders with predominant dystonia / parkinsonism. To this end we are planning to compare the MR imaging neuromelanin and iron-pattern and content in midbrain, striatum and further brain structures in clinically similar entities and respective, sex- and age-matched healthy controls.
The aim of this study is to observe the efficacy of Deep Brain Stimulation in the treatment of Parkinson's disease,Essential Tremors and Dystonia in our locality.
The investigators will study the relationship between the basal ganglia and the cerebellum in dystonia by associating cerebellar stimulations with functional magnetic resonance imaging analysis.
Botox acts on nerve endings, yet there are no nerve endings inside the muscle, where they are typically injected. All nerves terminate on the fascia, where ASIS device can precisely deliver Botox by creating that subdermal bloodless space, between the skin and muscle. Thus enhancing and prolonging Botox's efficacy, at the same time prevent it's unnecessary adverse reactions and distant spread, especially since Botox has no reason to travel to the rest of the body any way.