Improved treatment of severe brain injuries has resulted in increased survival rates. While some of these patients regain consciousness after a transient state of coma, others may develop a disorder of consciousness (DoC). Diagnosis of DoC currently relies on standardized behavioral assessment. The importance of accuracy in such diagnosis cannot be overstated, as it guides critical decisions on treatment (including pain management), and could underlie end-of-life decisions. Despite this importance, current behavioral diagnosis often fails, if because of the major sensory and motor deficits associated with DoC, or because of the heterogeneous etiology and pathophysiology associated with the condition. Finally, the need for accurate diagnosis and prognosis transcends the needs of the patients alone: caregiving of these patients is very stressful, principally for the large uncertainty associated with them. Thus, more accurate diagnosis and prognosis provide major relief for caregivers, and paradoxically, even if the news is not "good". For all these reasons it is critical to developing personalized diagnosis and prognosis prediction tools that permit a stratified analysis at the single-patient level. The PerBrain Project will benefit from the multidisciplinary partners' expertise, and the unique opportunity to perform longitudinal assessments in four clinical sites through both established and novel electrophysiological, neuroimaging, and physiological techniques. Based on the collected data, the investigators will develop a multimodal personalized diagnostic tool for DoC patients using state-of-the-art computational tools, such as machine learning, in order to better determine the current state (diagnosis) and future outcome (prognosis). The overall aim of this project will provide for a better understanding of the pathophysiological mechanisms in DoC, which will, in turn, allow personalized rehabilitation strategies, and improved single-patient predictions of state and prognosis.
Study Type
OBSERVATIONAL
Enrollment
150
CRS-R and GOSE
MRI, fMRI, EEG, TMS-EEG, Olfaction, Respiration, EKG
several questionnaires and an interview with the caregiver
Paris Brain Institute (ICM)
Paris, France
RECRUITINGUniversity Hospital of the Ludwig-Maximilians-University of Munich
Munich, Germany
RECRUITINGLoewenstein Hospital
Raanana, Israel
RECRUITINGDipartimento di Cura e Riabilitazione delle Gravi Cerebrolesioni Acquisite (GCA)
Milan, Italy
RECRUITINGPatients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients
Coma Recovery Scale Revised (CRS-R) \[0-23\] Higher score better outcome
Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury
Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients
Extended Glasgow Outcome Scale (GOSE) \[1-8\] Higher score better outcome
Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury
Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients
Quantitative high density EEG (64 Electrodes)
Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury
Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients
Standard EEG and transcranial magnetic stimulation (TMS-EEG)
Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury
Patients: Implementation of a hierarchical multi-modal personalized procedure to diagnose and track the change of the state of consciousness in brain-injured patients
Structural MRI and functional MRI (without contrast agent)
Time frame: Changes from T1: 1-2 Months from injury; T2: 4-7 Months from injury; T3: 9-12 months from injury
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Sociodemographic characteristics
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Brief Illness Perception Questionnaire (BIPQ) \[0-80\] Higher score more positive illness representation
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Euro-Qol 5 (EQ-5D61) \[0-15\] higher values indicating better perceived quality of life.
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Adult Carer Quality of Life Questionnaire (ACQoL24) \[0-120\] higher values better quality of life
Time frame: Changes from 0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Hospital Anxiety and Depression Scale (HADS) \[0-52\] higher scores indicating higher levels of anxiety and depression.
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Resilience (RS14) \[14-98\] higher scores relate to higher resilience levels.
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Sense of coherence (SOCS) \[13-91\] higher scores indicate higher sense of coherence.
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Treatment choices survey \[28-140\] higher score indicates a stronger agreement with the treatment and higher reason to take a given treatment decision
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: use of questionnaires to asses change in factors that impact well-being and treatment decisions of informal caregivers/family members confronted with multimodal technology-based tests for DoC patients
Semi-structured qualitative Interview based on a thematic grid for brochure development
Time frame: Changes from C0: before T1 (1-2 Months from injury); C1: between T1(1-2 Months from injury) and T2 (4-7 Months from injury); C2: between T2 (4-7 Months from injury) and T3 (9-12 Months from injury); C3: after T3 (9-12 Months from injury)
Caregivers: develop a brochure/guide to be applied in clinical practice for the effective communication of technology-based results
Working closely with Patient organizations/ patient representatives: Representatives of organizations ("Schädel- Hirnpatienten in Not e.V." in Germany) will be consulted in focus groups to jointly discuss the met and unmet needs and communication problems reported by caregivers in the study. Additionally, we will conduct a semi-structures interview with the caregivers. This information will help to devise with the research team effective communication strategies to be implemented in a brochure for the presentation of multimodal technology-based DOC testing.
Time frame: 12 months
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