Active clinical trials for "Parkinson Disease"

Parkinson's disease is a progressive chronic neurodegenerative disease. In cases where drug treatment is insufficient and drug use is not possible due to drug side effects, highly effective and low-risk surgical treatment options could be used. In Parkinson's Disease; findings such as chest wall rigidity and weakness of the respiratory muscle strength occur. The aim of this study was to determine the effect of preop and postop DBS surgery on respiratory muscle strength, respiratory function and physical performance in patients with Parkinson's disease.

Parkinson's disease (PD) is one of the most common neurodegenerative disorders. The parkinsonian gait is characterized by reducted stride length and gait speed, postural disorders (with a high risk of falling) and a modification of stride duration variability. This variability can be assessed by its magnitude (SD and CV) and its temporal organization (long-range autocorrelations). Healthy human gait presents with an interdependency between consecutive cycles that can span over hundreds of strides (long-range autocorrelations). Numerous observations plead for a relation between long-range autocorrelations and functional abilities of the system. Complementary to drugs, rehabilitation becomes an important way to treat PD. The aim of our study is to assess by a controlled, randomized, single blinded clinical study, the effect of physical exercise on stride duration variability, neurological impairments and walking abilities of parkinsonian patients. Physical exercise program will include 30 sessions spread over 15 weeks following the guidelines. Long-range correlations analysis, including the study of Hurst and α exponents, will be performed on a minimum of 512 consecutive cycles. Finally, the functional assessment of the parkinsonian patient will be done according to International Classification of Functioning Disability and Health (ICF).

The goal of this study is to explore the effect of subthalamic nucleus (STN)-DBS surgery and stimulation in PD (Parkinson's disease) patients on regional cerebral blood (CBF) flow during cognitive task performance or at rest.

The purpose of this study is to determine whether motor cortex stimulation, a mildly invasive surgical procedure, is safe and effective in advanced stage Parkinsonian patients who display side effects with dopaminergic treatment.

The beneficial effects of rhythmical auditory stimulation (RAS) on spatio-temporal gait characteristics in Parkinson's disease (PD) are attested by clinical research. Nonetheless, it is still unclear which auditory information parameters (i.e. complexity, temporal regularity or adaptability to gait) maximize the effectiveness of RAS. Objectives: To evaluate the beneficial effects of RAS on spatio-temporal gait characteristics in PD patients with gait disorders according to: RAS complexity (i.e. metronome, amplitude modulated noise, music) RAS variability (i.e fixed, random, semi-random) RAS adapted in real-time to gait Variability study: To study the impact of RAS variability (i.e fixed, random, semi-random) in 20 PD patients and 20 healthy controls on spatio-temporal gait characteristics with metronome, amplitude noise and music. Adaptability studyTo study the impact of RAS adaptability (i.e fixed, random, adapted in real-time to gait) in 20 PD patients and 20 healthy controls on spatio-temporal gait characteristics with metronome, amplitude noise and music.

The goal of this study is to compare the surgical outcome of deep brain stimulation (DBS) surgery in patients who are deeply sedated, "asleep," or not sedated, "awake," during surgical implantation of the DBS electrode. The investigators hypothesize that the clinical outcome, neurophysiological findings, and surgical accuracy will be equivalent. There are 3 specific aims: 1) compare the activity of the neurons in the patients' brain in the asleep and awake groups using microelectrode recording, to see how this affects clinical outcome capability of microelectrode recordings and macrostimulation to identify the subthalamic nucleus in asleep patients. 2) Determine if intraoperative CT scans of the DBS electrode is sufficient for accurate DBS electrode placement. 3) Compare the clinical outcome on their Parkinson's disease between awake and asleep DBS patients.

The purpose of this study is to determine if the 9zest app for Parkinson's disease is feasible, safe, and efficacious when used independently by individuals with Parkinson's disease.

The purpose of this study is to investigate the beneficial effects of regular exercise and the impact of food supplement carnosine on cognitive, motoric and metabolic functions as well as on specific biologically active substances in volunteers with subjective (SCI) or mild (MCI) cognitive impairment, as well as in patients in early stages of Parkinson's disease. The investigators assume the immediate intervention-associated health benefit for volunteers.

Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has developed into a standard therapy in the refractory stage of Parkinson's disease (PD). Implanted micro- and macroelectrodes can be used to derive neural signals from the basal ganglia (BG). Cortical signals can be obtained by measurements of the electroencephalogram (EEG) or the electrocorticogram (ECoG). Both signal types can be used to characterize the motor system of the patient and make it possible to estimate the effectiveness of a currently performed DBS. However, the relationship between such neuronal features on the one hand and the DBS stimulation parameters or the observable clinical effects on the other hand is very individual and varies from patient to patient. The aim of the present study is to: (1) determine neuronal characteristics that are informative about the clinically relevant motor status of PD patients. (2) The investigation and description of the complex non-stationary dynamics of neuronal characteristics as a consequence of changing DBS stimulation parameters. (3) The study of the effect of changing DBS stimulation parameters on motor performance. The three objectives form an important building block for future adaptive closed-loop DBS strategies (aDBS). Here, the stimulation parameters are to be adapted in the single-trial and depending on the currently detected motor state of the patient. Since this is accessible only to a very limited extent, it is to be investigated whether information about the motor state can be obtained from the neural features.

Whether Subthalamic Nucleus (STN) Deep Brain Stimulation (DBS), a treatment commonly used to ameliorate the motor symptoms of Parkinson's disease (PD), affects on facial expressions is unclear. The purpose of this study was to investigate the potential effects of DBS and different frequencies on facial expressions of PD patients by volunteers via a web site: http://www.supporttoscience.com