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Central Sensitization in Chronic Whiplash Patients

28 dicembre 2016 aggiornato da: University of Castilla-La Mancha

Central Sensitization in Chronic Whiplash Patients: Metabolite Concentrations in the Anterior Cingulate Cortex and Periacueductal Gray Matter

The purpose of this study is to determine whether the metabolite concentrations within the anterior cingulate cortex and periaqueductal gray matter predict the intensity and interference of neuropathic pain after the development of chronic whiplash syndrome.

Panoramica dello studio

Descrizione dettagliata

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.

Tipo di studio

Osservativo

Iscrizione (Anticipato)

30

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 65 anni (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Metodo di campionamento

Campione non probabilistico

Popolazione di studio

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.

Descrizione

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

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Modelli osservazionali: Coorte
  • Prospettive temporali: Trasversale

Coorti e interventi

Gruppo / Coorte
Intervento / Trattamento
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)

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Metabolite concentrations
Lasso di tempo: Baseline at 0 min
The metabolite concentrations will be measured by magnetic resonance (spectroscopy)
Baseline at 0 min
Conditioned Pain Modulation
Lasso di tempo: Baseline at 0 min
Conditioned Pain Modulation will be measured by a Pathway system (Medoc Ltd)
Baseline at 0 min
Brief Pain Inventory
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: Baseline at 0 min
Pain Catastrophizing Helplessness Subscale it is used to assess the catastrophizing score
Baseline at 0 min
Neck Disability Index
Lasso di tempo: Baseline at 0 min
Neck Disability Index (NDI), it is used to assess the disability after whiplash syndrome
Baseline at 0 min

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Investigatori

  • Investigatore principale: Diego Serrano-Muñoz, MsC, Hospital Nacional de Parapléjicos, Toledo

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 gennaio 2017

Completamento primario (Anticipato)

1 marzo 2017

Completamento dello studio (Anticipato)

1 maggio 2017

Date di iscrizione allo studio

Primo inviato

15 dicembre 2016

Primo inviato che soddisfa i criteri di controllo qualità

28 dicembre 2016

Primo Inserito (Stima)

29 dicembre 2016

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

29 dicembre 2016

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 dicembre 2016

Ultimo verificato

1 dicembre 2016

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • GFSM-HNP

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

Descrizione del piano IPD

To publish in impact journals

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

prodotto fabbricato ed esportato dagli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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