View clinical trials related to Quadriplegia.
Filter by:The Synchron motor neuroprosthesis (MNP) is intended to be used in subjects with severe motor impairment, unresponsive to medical or rehabilitative therapy and a persistent functioning motor cortex. The purpose of this research is to evaluate safety and feasibility. The MNP is a type of implantable brain computer interface which bypasses dysfunctional motor neurons. The device is designed to restore the transmission of neural signal from the cerebral cortex utilized for neuromuscular control of digital devices, resulting in a successful execution of non-mechanical digital commands.
This study aims to evaluate the safety of a wireless implantable neurodevice microsystem in tetraplegic patients, as well as the efficacy of the electrodes for long-term recording of neural activities and the successful control of an external device.
The purpose of this study is to establish the value of combined non-invasive stimulation (tDCS) and behavioral training (robotics) in SCI rehabilitation, and understand the mechanisms of this interaction and its relationship to functional outcome. The investigators hypothesize that supplementary tDCS will augment the functional improvement from robot-training, in chronic SCI.
The ability to maintain normal core body temperature (Tcore = 98.6°F) is impaired in persons with a cervical spinal cord injury (tetraplegia). Despite the known deficits in the ability of persons with spinal cord injury (SCI) to maintain Tcore, and the effects of hypothermia to impair mental function in able-bodied (AB) persons, there has been no work to date addressing these issues in persons with tetraplegia. Primary Aim: To determine if exposure of up to 2 hours to cool temperatures (64°F) causes Tcore to decrease in persons with tetraplegia, and if that decrease is associated with a decrease in cognitive function. Primary Hypotheses: Based on our pilot data: (1) 66% of persons with tetraplegia and none of the matched controls will demonstrate a decline of 1.8°F in Tcore; (2) 80% of persons with tetraplegia and 30% of controls will have a decline of at least one T-score in Stroop Interference scores (a measure of executive function). Secondary Aim: To determine the change in: (1) distal skin temperature, (2) metabolic rate, and (3) thermal sensitivity. Secondary Hypothesis: Persons with tetraplegia will have less of a percent change in average distal skin temperatures and metabolic rate, and report lower thermal sensitivity ratings compared with AB controls. Tertiary Aim: To determine if a 10 mg dose of an approved blood pressure-raising medicine (midodrine hydrochloride) will (1) reduce the decrease in Tcore and (2) prevent or delay the decline in cognitive performance in the group with tetraplegia compared to the exact same procedures performed on the day with no medicine (Visit 1) in that same group. Tertiary Hypothesis: Through administering a one-time dose of midodrine, the medicine-induced decreased blood flow to the skin will lessen the decline in Tcore and prevent or delay the associated decline in cognitive performance compared to the changes in Tcore and cognitive performance during cool temperature exposure without midodrine in the same group with tetraplegia.
This study is designed to assess the strategy of using spinal cord stimulation to improve the ability to move in spinal cord injured humans.
The purpose of this study is to evaluate the effectiveness of an implanted stimulator and sensor for providing hand and arm function for individuals with cervical level spinal cord injury.
People with high spinal lesions are at risk of respiratory complications because they have partial or complete paralysis of breathing muscles. Previous work has shown that tetraplegic lung volumes can be increased by using abdominal FES during expiration. The technique is attractive because it is non-invasive, painless in tetraplegia and completely reversible. It may provide a treatment for augmenting the patient’s breathing both in the acute presentation of spinal injury (when half of cervical injuries require ventilation) and in long term management of tetraplegia and high paraplegia. We propose a pilot study in a small group of subjects to see if the technique is feasible from both a clinical and engineering viewpoint. The aims of the study are: 1)To examine the effects of abdominal FES on lung mechanics and gas exchange in tetraplegic subjects. 2)To optimise the stimulation pattern and intensity via electronic stimulators and to design a trigger to allow the FES to follow the subject’s own breathing cycle automatically.
Incomplete spinal cord injury often results in difficulty walking. Training on a treadmill with body weight support may improve walking ability after spinal cord injury. The purpose of this study is to examine the effect of treadmill speed on spinal cord function and walking performance.