Central Sensitization in Chronic Whiplash Patients
Central Sensitization in Chronic Whiplash Patients: Metabolite Concentrations in the Anterior Cingulate Cortex and Periacueductal Gray Matter
研究概览
详细说明
Persistent chronic pain is a common symptom of whiplash leading to reduced quality of life. Little information is available regarding changes in brain processing areas and change in central sensitization to noxious input during the chronic phase of whiplash. Metabolite concentrations in the anterior cingulate cortex and periaqueductal gray matter may be predictors of neuropathic pain and these changes may explain the development of central sensitization in people with chronic whiplash.
Until now, there is not any study that show this approach.
研究类型
注册 (预期的)
联系人和位置
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
Patients who have suffered whiplash syndrome. By one hand, patients with chronic pain (minimun 8 weeks) and 2 points or more of pain intensity. By the other hand, patiens without pain (2 points or less of pain intensity).
By last, subjects without whiplash syndrome.
描述
Inclusion Criteria:
- Whiplash syndrome
- Chronic pain
- Age between 18 to 65 years
- 4 months to 2 years after the whiplash syndrome
Exclusion Criteria:
- Neurological disease
- Claustrophobia
学习计划
研究是如何设计的？
设计细节
- 观测模型：队列
- 时间观点：横截面
队列和干预
团体/队列 |
干预/治疗 |
|---|---|
|
Whiplash-Pain
Subjects with chronic whiplash syndrome and pain.
The inclusion criteria for pain include the presence of daily pain during the previous 8 weeks.
Specifically, pain will be diagnosed based on the pain intensity measured on the 0 to 10 numerical rating scale.
The minimum will be 2 points.
Subjects will be recruited between the 4 months until 2 years after the whiplash.
|
Spectroscopy is a noninvasive method to assess brain chemistry. The signal of the hydrogen atom attached to a certain molecule or metabolite has a particular frequency associated with a given metabolite. The utility of Spectroscopy is based on the fact thet the nuclei of atoms have magnetic properties that can be used to obtain chemical information regarding both the type of molecule and it is concentration. The subjects will be scanned on a 3-T Siemens system and an 12-channel phased-array coil will be used to provide an optimum signal-to-noise ratio for spectroscopy data.
Questionnaires are important to assess the chronic pain and their impact in the quality of life.
For this reason, we will assess the Brief Pain Inventory (BPI), it is used to evaluate the subject's perception of pain severity and its interference.
Moreover, we will assess neuropathic pain symptoms with the NPSI to detect paresthesia/dysaesthesia, evoked pain and paroxysmal pain.
The catastrophizing score will be measured with the Pain Catastrophizing Helplessness Subscale.
Also,we will assess the disability after whiplash using the Neck Disability Index.
Conditioned Pain Modulation over the tenar eminence.
The test will be a heat tonic stimulus which evoke a 3-pain intensity.
The conditioning stimulus will be a cold water immersion (12ºC)
|
|
Whiplash-no Pain
Subjects with chronic whiplash syndrome and pain.
The inclusion criteria for pain include the ausence of daily pain during the previous 8 weeks.
Specifically, pain will be diagnosed based on the pain intensity measured on the 0 to 10 numerical rating scale.
The maximun will be 2 points.
Subjects will be recruited between the 4 months until 2 years after the whiplash.
|
Spectroscopy is a noninvasive method to assess brain chemistry. The signal of the hydrogen atom attached to a certain molecule or metabolite has a particular frequency associated with a given metabolite. The utility of Spectroscopy is based on the fact thet the nuclei of atoms have magnetic properties that can be used to obtain chemical information regarding both the type of molecule and it is concentration. The subjects will be scanned on a 3-T Siemens system and an 12-channel phased-array coil will be used to provide an optimum signal-to-noise ratio for spectroscopy data.
Questionnaires are important to assess the chronic pain and their impact in the quality of life.
For this reason, we will assess the Brief Pain Inventory (BPI), it is used to evaluate the subject's perception of pain severity and its interference.
Moreover, we will assess neuropathic pain symptoms with the NPSI to detect paresthesia/dysaesthesia, evoked pain and paroxysmal pain.
The catastrophizing score will be measured with the Pain Catastrophizing Helplessness Subscale.
Also,we will assess the disability after whiplash using the Neck Disability Index.
Conditioned Pain Modulation over the tenar eminence.
The test will be a heat tonic stimulus which evoke a 3-pain intensity.
The conditioning stimulus will be a cold water immersion (12ºC)
|
|
Non-injured
Subjects without whiplash syndrome.
The inclusion criteria are defined as a absence of previous or actual symptoms or signs of neck pain.
|
Spectroscopy is a noninvasive method to assess brain chemistry. The signal of the hydrogen atom attached to a certain molecule or metabolite has a particular frequency associated with a given metabolite. The utility of Spectroscopy is based on the fact thet the nuclei of atoms have magnetic properties that can be used to obtain chemical information regarding both the type of molecule and it is concentration. The subjects will be scanned on a 3-T Siemens system and an 12-channel phased-array coil will be used to provide an optimum signal-to-noise ratio for spectroscopy data.
Questionnaires are important to assess the chronic pain and their impact in the quality of life.
For this reason, we will assess the Brief Pain Inventory (BPI), it is used to evaluate the subject's perception of pain severity and its interference.
Moreover, we will assess neuropathic pain symptoms with the NPSI to detect paresthesia/dysaesthesia, evoked pain and paroxysmal pain.
The catastrophizing score will be measured with the Pain Catastrophizing Helplessness Subscale.
Also,we will assess the disability after whiplash using the Neck Disability Index.
Conditioned Pain Modulation over the tenar eminence.
The test will be a heat tonic stimulus which evoke a 3-pain intensity.
The conditioning stimulus will be a cold water immersion (12ºC)
|
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Metabolite concentrations
大体时间：Baseline at 0 min
|
The metabolite concentrations will be measured by magnetic resonance (spectroscopy)
|
Baseline at 0 min
|
|
Conditioned Pain Modulation
大体时间：Baseline at 0 min
|
Conditioned Pain Modulation will be measured by a Pathway system (Medoc Ltd)
|
Baseline at 0 min
|
|
Brief Pain Inventory
大体时间：Baseline at 0 min
|
Brief Pain Inventory (BPI), it is used to evaluate the subject's perception of pain severity and its interference.
|
Baseline at 0 min
|
|
Neurophatic Pain Symptoms Inventory
大体时间：Baseline at 0 min
|
Neurophatic Pain Symptoms Inventory (NPSI), it is used to detect paresthesia/dysaesthesia, evoked pain and paroxysmal pain.
|
Baseline at 0 min
|
|
Pain Catastrophizing Helplessness Subscale
大体时间：Baseline at 0 min
|
Pain Catastrophizing Helplessness Subscale it is used to assess the catastrophizing score
|
Baseline at 0 min
|
|
Neck Disability Index
大体时间：Baseline at 0 min
|
Neck Disability Index (NDI), it is used to assess the disability after whiplash syndrome
|
Baseline at 0 min
|
合作者和调查者
调查人员
- 首席研究员：Diego Serrano-Muñoz, MsC、Hospital Nacional de Parapléjicos, Toledo
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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