Central Sensitization in Chronic Whiplash Patients
Central Sensitization in Chronic Whiplash Patients: Metabolite Concentrations in the Anterior Cingulate Cortex and Periacueductal Gray Matter
연구 개요
상세 설명
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.
연구 유형
등록 (예상)
연락처 및 위치
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
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.
설명
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
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 관찰 모델: 보병대
- 시간 관점: 단면
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
|---|---|
|
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)
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Metabolite concentrations
기간: Baseline at 0 min
|
The metabolite concentrations will be measured by magnetic resonance (spectroscopy)
|
Baseline at 0 min
|
|
Conditioned Pain Modulation
기간: Baseline at 0 min
|
Conditioned Pain Modulation will be measured by a Pathway system (Medoc Ltd)
|
Baseline at 0 min
|
|
Brief Pain Inventory
기간: 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
기간: 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
기간: Baseline at 0 min
|
Pain Catastrophizing Helplessness Subscale it is used to assess the catastrophizing score
|
Baseline at 0 min
|
|
Neck Disability Index
기간: Baseline at 0 min
|
Neck Disability Index (NDI), it is used to assess the disability after whiplash syndrome
|
Baseline at 0 min
|
공동 작업자 및 조사자
수사관
- 수석 연구원: Diego Serrano-Muñoz, MsC, Hospital Nacional de Parapléjicos, Toledo
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (예상)
연구 완료 (예상)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
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