Imaging of the Neural Correlates of Arousal and Awareness (IMAGINA)
Lesional Coma
About this trial
This is an interventional other trial for Lesional Coma focused on measuring coma, prognosis, diagnosis, functional imaging, PET-MRI, electrophysiology, eye-tracking
Eligibility Criteria
Inclusion Criteria:
Patients 1 Patients presenting either vascular or traumatic lesions or anoxic coma 2. For acute patients: Patients with no response to simple command 48h after sedation's cessation (coma, early vegetative state or MCS "minus") ; for chronic patients : patients without functional communication (including MCS "plus").
3. For acute patients: inclusion between 7 days (to reduce the effect of early oedema) and 30 days after the coma (to control the homogeneity of our cohort); for chronic patients: more than 3 months after anoxic coma or more than one year after 4. Patients included between 18 and 75 years old, to limit the risk of care withdrawal for poor previous medical condition 5. Patients evaluated by a global electrophysiological assessment at beside in ICU in a short delay before or after PET-MRI
Volunteers Healthy subjects:
- Lack of neurological and / or psychiatric history, in particular without a history of head trauma with loss of consciousness lasting more than 30 min;
- Participant between 18 and 75 years old matched in age and sex a posteriori with the patients
- Subjects affiliated (or beneficiaries) to a social security scheme
- Not subject to a legal protection measure;
- Having given their free and informed consent to participate in the study in writing.
- Subject having agreed to be registered in the national file of people who lend themselves to biomedical research
Exclusion Criteria:
Patients
- Patient with an associated anoxic encephalopathy if the N20 response of SEP are not bilaterally abolished
- Patients with contra-indication to MRI
- Patients with hypersensibility to the active molecules (FDG) or to one of this excipient
- Pregnant women
- Minor patients
- Patients under legal protection
- Patients not affiliated to French health care system
- Patients in poor medical condition (hemodynamic, respiratory instability)
- Patients moribund or with previous decision of care withdrawal
- Absence of relatives to give written consent
Volunteers Healthy subjects:
1. Subjects benefiting (or having benefited in the last month) from a medicinal treatment for somatic purposes having a cerebral or psychic impact (e.g. antihistamine); 2. Subjects with present or past dependence on alcohol or any other addictive substance according to DSM-IV-TR criteria, with the exception of nicotine and caffeine; 3.Subjects already participating in another biomedical research project or having participated for less than a year in a study using ionizing radiation; 4;Subjects with an inability to understand or carry out the study (language barrier, obvious lack of motivation, etc.) judged by the investigator 5.Minor patient; Patient under guardianship or curatorship; Patient not affiliated with French social security.
6.Pregnant woman or woman of childbearing age without proof of the absence of a current pregnancy
Sites / Locations
- Hôpital Neurologique Pierre Wertheimer
Arms of the Study
Arm 1
Other
Comatose or post-comatose patients