View clinical trials related to Dystonic Disorders.
Filter by:The ASK CHILDREN study is intended to aid in future development of various neurologic devices (i.e. neuroprostheses). The ASK CHILDREN study seeks to use study information obtained to identify more efficient strategies in the evaluation and review of neuroprostheses regulated by the Agency.
The purpose of this experimental pilot study is to test the effect of normalization of the head position on the sense of balance at patients with cervical dystonia under routine botulinum toxin treatment.
The purpose of this prospective, participant-blinded trial is to determine the changes in sleep architecture in a cohort of subjects who have undergone deep brain stimulation (DBS) surgery for treatment of movement disorders such as moderate to advanced Parkinson's disease (PD), tremor, or dystonia. Our preliminary observational data suggest that unilateral subthalamic nucleus (STN) DBS improves subjective sleep quality in PD patients 6 months after the procedure. The cause of this improvement in sleep quality is unknown, and this study proposes the use of polysomnography (PSG) to test whether the improvement in sleep is independent of improvement in night-time mobility associated with DBS treatment of the motor symptoms of PD, tremor, or dystonia.
Background: - New studies in human genetics have revealed information about genetic connections to memory and motor behavior. Researchers are interested in investigating the role of genetics in motor learning, in conjunction with related studies taking place in the Human Motor Control Section of the National Institute of Neurological Diseases and Stroke (NINDS). Participants in motor learning studies conducted at NINDS will be asked to provide blood samples for further evaluation. Objectives: - To create a repository of blood samples from patients and healthy subjects who are participating in NINDS motor learning studies. Eligibility: - Individuals between 18 and 100 years of age who are or will be participating in motor learning research studies at the National Institutes of Health. Design: - Blood draws for genetic testing will usually be done on the same day as the motor learning study. Participants will provide one blood sample for research. - No treatment will be provided under this study....
Botulinum toxin injection in the contracting muscles has proven to be a safe and effective method of relieving pain and lessening dystonic posturing. The current hypothesis is that botulinum toxin works on altering sensory input in the central nervous system in addition to its effects on the neuromuscular junction. Magnetoencephalography (MEG)of brain has been used in dystonia such as writer's cramp and musician's hand dystonia. However, no study has investigated the correlation of central signal changes via magnetoencephalography before and after treatment with botulinum in torticollis patients. Prior studies using somatosensory potentials indicated the possibility of differential activation of precentral cortex in patients with cervical dystonia. Cervical dystonia may result from a disorder of both cortical excitability and intracortical inhibition. The investigators hypothesis is that botulinum injection modulates central inhibition which improves clinical outcome for torticollis.
Deep brain stimulation (DBS) involves placing electrodes into the brain. Through these electrodes, artificial electrical signals are chronically delivered into deep brain regions in order to alter abnormal brain activity. The artificial electrical signals are generated by a battery that is inserted under the skin of the chest. DBS is used to treat several disorders of movement, including dystonia. In dystonia, the electrodes are inserted into a brain region called the globus pallidus. Globus pallidus stimulation can be very effective therapy for dystonia. However not all patients are equally responsive and therapeutic outcomes can be frustratingly variable. The reason for this variability is unclear. Such variability in response may need to be met by tailoring stimulation to individual patients. Another issue with deep brain stimulation is battery life. Eventually, batteries become depleted and need to be replaced. Such battery replacements require an operation, hospital stay and the risk of introducing infection. The high electrical energy that has been used to treat dystonia means that batteries are typically replaced every year or two. The artificial electrical signals of deep brain stimulation are delivered with three parameters; frequency (Hertz - Hz), voltage (volts) and pulse width (microseconds). It has recently been reported that lower frequency stimulation, at 60Hz rather than 130Hz, can be used effectively to treat dystonia. Such 60Hz stimulation may be more effective for some patients than others. The lower energy demands of 60Hz stimulation would also greatly improve battery life (potentially doubling battery life). The aim of this study is to assess if 60Hz stimulation is more effective in ameliorating the dystonia of patients who have responded poorly to 130Hz pallidal stimulation. The current status of the evidence is one of clinical equipoise (uncertainty) and therefore suits a double blinded randomised trial.
The purpose of this study is to determine how common fatigue and sleepiness are in patients with dystonia.
1. to examine the non-inferiority of Dysport in the clinical efficacy and safety in comparison with Botox®, assuming a bioequivalence ratio of 2.5:1 units, in the treatment of Cervical dystonia. 2. double blind, randomised, multi center, crossover study
Foot dystonia is frequently observed in patients suffering from Parkinson'disease. It is characterized by an abnormal involuntary movement which is very uncomfortable (difficult to walk) and painful for the patient. Botulinum toxin injections seem to be efficient to treat this dystonia. However studies on this topic are few and very imprecise (many muscle injected, especially the Flexor digitorum longus, different doses used, heterogeneous population with many types of dystonia included, open studies).
Theta-burst transcranial magnetic stimulation (TBS) is a type of repetitive transcranial magnetic stimulation (rTMS) method that reduces the excitability of a small region of brain for less than one hour. Since dystonia and spasticity may be associated with increased excitability of motor cortex, we expect that by reducing the excitability of motor cortex with TBS we will temporarily improve these symptoms and hopefully open avenues in the future for the use of TBS as a new, non-invasive therapeutic intervention to aid in physical therapy and symptom amelioration of dystonia and spasticity. We will test for motor improvement during the hour immediately following TBS using tests of muscle function and quality of limb movement.