Pilot Study: Spike-timing-dependent Plasticity for Respiratory Function After Spinal Cord Injury
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 10
- 试验地点
- 2
- 主要终点
- Change in Maximum Voluntary Contractions (MVCs)
研究概览
简要总结
The purpose of this research study is to learn more about the connections between the brain, nerves, and diaphragm after experiencing a cervical spinal cord injury (SCI).The main question it aims to answer is:
Changes in respiratory function and recovery using stimulation and respiratory exercise training in spinal cord-injured individuals.
Participants will complete a maximum of 55 study visits. They will be asked to complete about 40 treatment sessions which include multiple stimulation sessions over the scalp and neck, followed by about 60 minutes of respiratory training. Assessment sessions will be completed prior at baseline, after 20 sessions and after 40 sessions of study treatment.
详细描述
The purpose of this study is to test a strategy to potentiate functional recovery of respiratory function in individuals with spinal cord injury (SCI). Respiratory function is often impaired in individuals with high cervical spinal cord injury (SCI, C1-C5) leading to reduced quality of life and mortality. Currently, research has shown Spike-timing-dependent plasticity (STDP) targeting cortico-motoneuronal connections effectively promote recovery in upper and lower limbs, including functions such as grasping and locomotion. The overall goal of our proposal is to develop a non-invasive protocol using
STDP that can be used to strengthen synaptic plasticity and voluntary motor output in the diaphragm muscle in humans with high cervical SCI. To assess the effect of STDP on respiratory function in humans with high cervical SCI, we propose a pilot study of efficacy trial with the specific aim below:
The overall objective of this project is to investigate the efficacy of spike-timing-dependent plasticity (STDP) on respiratory function in humans with high cervical SCI.
Specific Aim: Examine the effect of STDP in respiratory function in humans with chronic high cervical SCI.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male and females between ages 18-85 years
- •SCI at least 6 months post-injury
- •Spinal Cord injury at C1-C5
- •Demonstrate respiratory deficit following spinal cord injury as following: (1) Individuals using mechanical ventilation, and (2) individuals with pulmonary function testing (PFT) deficits corresponding to having a vital capacity (VC) < 80% (predicted)
- •Must have a family member or caregiver who is trained and willing to operate the mechanical ventilator during study visits.
排除标准
- •Any illness or condition that based on the research team's assessment, will compromise with the participant's ability to comply with the protocol, patient safety, or the validity of the data collected during this study.
- •Any debilitating disease prior to the SCI that caused exercise intolerance.
- •Individuals entirely dependent on the support of a diaphragmatic pacer (24 hours per day).
- •Premorbid, ongoing major depression or psychosis, altered cognitive status.
- •History of head injury or stroke
- •Vascular, traumatic, tumoral, infectious, or metabolic lesion of the brain, even without a history of seizure, and without anticonvulsant medication
- •History of seizures or epilepsy
- •Receiving drugs acting primarily on the central nervous system, which lower the seizure threshold
- •Pregnant females
- •If a woman of childbearing age is unsure of the pregnancy, and does not want to take the pregnancy test
- •Ongoing cord compression or a syrinx in the spinal cord or who suffer from a spinal cord disease such as spinal stenosis, spina bifida, MS, or herniated disk
- •Metal plate in skull
- •Individuals with scalp shrapnel, cochlear implants, or aneurysm clips
- •Individuals taking Bupropion, Dolutegravir, Lacosamide, Trilaciclib, or PR Interval prolonging drugs
结局指标
主要结局
Change in Maximum Voluntary Contractions (MVCs)
时间窗: MVCs measured at baseline, 7 weeks (20 sessions), and 14 weeks (40 sessions) of STDP stimulation and respiratory training for the participants during study procedures.
Individuals will perform a maximum voluntary contraction (MVC) of diaphragm muscle through surface electrodes secured to the skin over the chest and belly region.
Change in Motor evoked potentials (MEPs)
时间窗: MEPs measured at baseline, 7 weeks (20 sessions), and 14 weeks (40 sessions) of STDP stimulation and respiratory training for the participants during study procedures.
Transcranial magnetic stimuli (TMS) will be delivered to the optimal scalp position for activation of the diaphragm muscle. The optimal scalp position will be determined by moving the coil in small steps along the diaphragm representation of the primary motor cortex to find the region where the largest MEP can be evoked with the minimum intensity in the targeted muscles.
次要结局
- Change in Cervicomedullary electric potentials (CMEPs)(CMEPs measured at baseline, 7 weeks (20 sessions), and 14 weeks (40 sessions) of STDP stimulation and respiratory training for the participants during study procedures.)
- Change in Pulmonary function tests(Change in pulmonary function tests measured at baseline, 7 weeks (20 sessions), and 14 weeks (40 sessions) of STDP stimulation and respiratory training for the participants during study procedures.)
- Change in the Diaphragm ultrasound imaging(Change in the diaphragm ultrasound imaging measured at baseline, 7 weeks (20 sessions), and 14 weeks (40 sessions) of STDP stimulation and respiratory training for the participants during study procedures.)
研究者
Monica Perez
Scientific Chair, Arms and Hands Lab
Shirley Ryan AbilityLab