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2.
Brain ; 147(4): 1321-1330, 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38412555

RESUMO

The pathophysiological underpinnings of critically disrupted brain connectomes resulting in coma are poorly understood. Inflammation is potentially an important but still undervalued factor. Here, we present a first-in-human prospective study using the 18-kDa translocator protein (TSPO) radioligand 18F-DPA714 for PET imaging to allow in vivo neuroimmune activation quantification in patients with coma (n = 17) following either anoxia or traumatic brain injuries in comparison with age- and sex-matched controls. Our findings yielded novel evidence of an early inflammatory component predominantly located within key cortical and subcortical brain structures that are putatively implicated in consciousness emergence and maintenance after severe brain injury (i.e. mesocircuit and frontoparietal networks). We observed that traumatic and anoxic patients with coma have distinct neuroimmune activation profiles, both in terms of intensity and spatial distribution. Finally, we demonstrated that both the total amount and specific distribution of PET-measurable neuroinflammation within the brain mesocircuit were associated with the patient's recovery potential. We suggest that our results can be developed for use both as a new neuroprognostication tool and as a promising biometric to guide future clinical trials targeting glial activity very early after severe brain injury.


Assuntos
Lesões Encefálicas , Coma Pós-Traumatismo da Cabeça , Humanos , Coma/complicações , Coma Pós-Traumatismo da Cabeça/complicações , Estudos Prospectivos , Imageamento por Ressonância Magnética/métodos , Encéfalo/metabolismo , Lesões Encefálicas/complicações , Hipóxia/complicações , Receptores de GABA/metabolismo
3.
Intensive Care Med ; 49(6): 633-644, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37178149

RESUMO

PURPOSE: Severe traumatic brain injury (TBI) leads to acute coma and may result in prolonged disorder of consciousness (pDOC). We aimed to determine whether right median nerve electrical stimulation is a safe and effective treatment for accelerating emergence from coma after TBI. METHODS: This randomised controlled trial was performed in 22 centres in China. Participants with acute coma at 7-14 days after TBI were randomly assigned (1:1) to either routine therapy and right median nerve electrical stimulation (RMNS group) or routine treatment (control group). The RMNS group received 20 mA, 300 µs, 40 Hz stimulation pulses, lasting 20 s per minutes, 8 h per day, for 2 weeks. The primary outcome was the proportion of patients who regained consciousness 6 months post-injury. The secondary endpoints were Glasgow Coma Scale (GCS), Full Outline of Unresponsiveness scale (FOUR), Coma Recovery Scale-Revised (CRS-R), Disability Rating Scale (DRS) and Glasgow Outcome Scale Extended (GOSE) scores reported as medians on day 28, 3 months and 6 months after injury, and GCS and FOUR scores on day 1 and day 7 during stimulation. Primary analyses were based on the intention-to-treat set. RESULTS: Between March 26, 2016, and October 18, 2020, 329 participants were recruited, of whom 167 were randomised to the RMNS group and 162 to the control group. At 6 months post-injury, a higher proportion of patients in the RMNS group regained consciousness compared with the control group (72.5%, n = 121, 95% confidence interval (CI) 65.2-78.7% vs. 56.8%, n = 92, 95% CI 49.1-64.2%, p = 0.004). GOSE at 3 months and 6 months (5 [interquartile range (IQR) 3-7] vs. 4 [IQR 2-6], p = 0.002; 6 [IQR 3-7] vs. 4 [IQR 2-7], p = 0.0005) and FOUR at 28 days (15 [IQR 13-16] vs. 13 [interquartile range (IQR) 11-16], p = 0.002) were significantly increased in the RMNS group compared with the control group. Trajectory analysis showed that significantly more patients in the RMNS group had faster GCS, CRS-R and DRS improvement (p = 0.01, 0.004 and 0.04, respectively). Adverse events were similar in both groups. No serious adverse events were associated with the stimulation device. CONCLUSION: Right median nerve electrical stimulation is a possible effective treatment for patients with acute traumatic coma, that will require validation in a confirmatory trial.


Assuntos
Lesões Encefálicas Traumáticas , Coma Pós-Traumatismo da Cabeça , Humanos , Coma Pós-Traumatismo da Cabeça/terapia , Coma/etiologia , Coma/terapia , Nervo Mediano , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/terapia , Escala de Coma de Glasgow , Estimulação Elétrica
4.
Neuroimage Clin ; 37: 103361, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36871404

RESUMO

OBJECTIVE: We aimed to explore the pathogenesis of traumatic coma related to functional connectivity (FC) within the default mode network (DMN), within the executive control network (ECN) and between the DMN and ECN and to investigate its capacity for predicting awakening. METHODS: We carried out resting-state functional magnetic resonance imaging (fMRI) examinations on 28 traumatic coma patients and 28 age-matched healthy controls. DMN and ECN nodes were split into regions of interest (ROIs), and node-to-node FC analysis was conducted on individual participants. To identify coma pathogenesis, we compared the pairwise FC differences between coma patients and healthy controls. Meanwhile, we divided the traumatic coma patients into different subgroups based on their clinical outcome scores at 6 months postinjury. Considering the awakening prediction, we calculated the area under the curve (AUC) to evaluate the predictive ability of changed FC pairs. RESULTS: We found a massive pairwise FC alteration in the patients with traumatic coma compared to the healthy controls [45% (33/74) pairwise FC located in the DMN, 27% (20/74) pairwise FC located in the ECN, and 28% (21/74) pairwise FC located between the DMN and ECN]. Moreover, in the awake and coma groups, there were 67% (12/18) pairwise FC alterations located in the DMN and 33% (6/18) pairwise FC alterations located between the DMN and ECN. We also indicated that pairwise FC that showed a predictive value of 6-month awakening was mainly located in the DMN rather than in the ECN. Specifically, decreased FC between the right superior frontal gyrus and right parahippocampal gyrus (in the DMN) showed the highest predictive ability (AUC = 0.827). CONCLUSION: In the acute phase of severe traumatic brain injury (sTBI), the DMN plays a more prominent role than the ECN and the DMN-ECN interaction in the emergence of traumatic coma and the prediction of 6-month awakening.


Assuntos
Lesões Encefálicas Traumáticas , Coma Pós-Traumatismo da Cabeça , Humanos , Coma/diagnóstico por imagem , Coma/etiologia , Função Executiva , Rede de Modo Padrão , Imageamento por Ressonância Magnética/métodos , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico/métodos
6.
Crit Care Med ; 48(8): e639-e647, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32697504

RESUMO

OBJECTIVES: Recovery from coma might critically depend on the structural and functional integrity of frontoparietal networks. We aimed to measure this integrity in traumatic brain injury and anoxo-ischemic (cardiac arrest) coma patients by using an original multimodal MRI protocol. DESIGN: Prospective cohort study. SETTING: Three Intensive Critical Care Units affiliated to the University in Toulouse (France). PATIENTS: We longitudinally recruited 43 coma patients (Glasgow Coma Scale at the admission < 8; 29 cardiac arrest and 14 traumatic brain injury) and 34 age-matched healthy volunteers. Exclusion criteria were disorders of consciousness lasting more than 30 days and focal brain damage within the explored brain regions. Patient assessments were conducted at least 2 days (5 ± 2 d) after complete withdrawal of sedation. All patients were followed up (Coma Recovery Scale-Revised) 3 months after acute brain injury. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Functional and structural MRI data were recorded, and the analysis was targeted on the posteromedial cortex, the medial prefrontal cortex, and the cingulum. Univariate analyses and machine learning techniques were used to assess diagnostic and predictive values. Coma patients displayed significantly lower medial prefrontal cortex-posteromedial cortex functional connectivity (area under the curve, 0.94; 95% CI, 0.93-0.95). Cardiac arrest patients showed specific structural disturbances within posteromedial cortex. Significant cingulum architectural disturbances were observed in traumatic brain injury patients. The machine learning medial prefrontal cortex-posteromedial cortex multimodal classifier had a significant predictive value (area under the curve, 0.96; 95% CI, 0.95-0.97), best combination of subregions that discriminates a binary outcome based on Coma Recovery Scale-Revised). CONCLUSIONS: This exploratory study suggests that frontoparietal functional disconnections are specifically observed in coma and their structural counterpart provides information about brain injury mechanisms. Multimodal MRI biomarkers of frontoparietal disconnection predict 3-month outcome in our sample. These findings suggest that fronto-parietal disconnection might be particularly relevant for coma outcome prediction and could inspire innovative precision medicine approaches.


Assuntos
Coma Pós-Traumatismo da Cabeça/patologia , Coma/patologia , Lobo Frontal/patologia , Lobo Parietal/patologia , Adulto , Idoso , Estudos de Casos e Controles , Coma/diagnóstico por imagem , Coma/etiologia , Coma/fisiopatologia , Coma Pós-Traumatismo da Cabeça/diagnóstico por imagem , Coma Pós-Traumatismo da Cabeça/fisiopatologia , Feminino , Lobo Frontal/diagnóstico por imagem , Lobo Frontal/fisiopatologia , Escala de Coma de Glasgow , Parada Cardíaca/complicações , Humanos , Estudos Longitudinais , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neuroimagem , Lobo Parietal/diagnóstico por imagem , Lobo Parietal/fisiopatologia , Estudos Prospectivos , Adulto Jovem
7.
Neuroimage Clin ; 28: 102503, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33395992

RESUMO

BACKGROUND: It is not currently possible to predict which patients will develop chronic disorders of consciousness (DoC) after severe traumatic brain injury (TBI). Although the ascending arousal network (AAN) supports human consciousness, it is unknown which AAN pathways must be preserved for patients to recover consciousness. METHODS: Sixteen patients with acute traumatic coma and 16 matched healthy controls were scanned with high angular resolution diffusion imaging (HARDI). All patients recovered consciousness (Recovery Cohort). Nine were scanned longitudinally: first in the ICU (Acute), then at ≥5 months post-injury (Follow-up). Six separate patients with post-traumatic DoC were scanned ≥5 months post-injury (Chronic DoC Cohort). For each AAN pathway, we computed the median relative change in Acute-to-Follow-up Connectivity Probability (CP) in the Recovery Cohort. We then used Wilcoxon tests with Bonferroni correction to compare CP in each AAN pathway in the Recovery Cohort at Follow-up versus the Chronic DoC Cohort. In an exploratory analysis, we used principal component analysis (PCA) to determine whether linear combinations of AAN CP values could separate the Chronic DoC Cohort from the Recovery Cohort and the healthy controls. RESULTS: In the Recovery Cohort, the largest relative AAN CP changes were in the brainstem-to-thalamus (median [IQR] = 0.7 [0.09, 0.9]) and forebrain-to-occipital lobe (-0.8 [-0.9, -0.8]) pathways. The AAN connections that differed in the cross-sectional analysis between the Recovery Cohort at Follow-up and the Chronic DoC Cohort included brainstem-to-hypothalamus (W = 53, PBonf = 0.02), brainstem-to-temporal lobe (W = 52, PBonf = 0.04), and thalamus-to-temporal lobe (W = 54, PBonf = 0.009). Plotting the first two principal components of AAN connectivity resulted in a linear separation of Chronic DoC patients from other study groups. CONCLUSIONS: We provide evidence for a longitudinal increase in brainstem-thalamic connectivity during recovery of consciousness after traumatic coma. Cross-sectional analyses revealed that brainstem-hypothalamus, brainstem-temporal lobe, and thalamus-temporal lobe connectivity differed between patients who recovered consciousness and those with a chronic DoC. These observations provide the basis for further investigation into AAN connectivity as a biomarker for recovery of consciousness after traumatic coma.


Assuntos
Coma Pós-Traumatismo da Cabeça , Nível de Alerta , Estado de Consciência , Transtornos da Consciência , Estudos Transversais , Humanos
8.
Rehabilitacion (Madr) ; 53(3): 155-161, 2019.
Artigo em Espanhol | MEDLINE | ID: mdl-31370942

RESUMO

INTRODUCTION: The aim of this study was to assess the results and adverse effects of bromocriptine in patients with traumatic brain injury-vegetative state (TBI-VS) or traumatic brain injury-minimally conscious state (TBI-MCS). METHODS: We conducted a retrospective review of 10 patients, six with TBI-VS and four with TBI-MCS. All patients received bromocriptine at a starting dose of 2.5mg twice daily. Bromocriptine was titrated up to 7.5 or 12.5mg twice daily according to response and was maintained for at least 4 weeks. Various assessment scales were used in the following stages: before bromocriptine administration, at 4 weeks post bromocriptine prescription, and at hospital discharge. The assessment scales used were the Coma Recovery Scale-Revised (CRS-R), Disability Rating Scale, Glasgow Coma Scale, Barthel Scale, and Marshall Scale. RESULTS: Of the 10 patients, four with TBI-MCS and four with TBI-VS achieved a score of 23 points at discharge in the CRS-R, thus emerging from VS or MCS and regaining functional status. There were only two patients who emerged from VS but remained in MCS (8 to 11 and 5 to 10 points in CRS-R). CONCLUSIONS: Considering the poor prognosis for recovery in these patients, bromocriptine use has a positive risk-benefit ratio at a dosage of at least 7.5mg twice daily for 4 weeks.


Assuntos
Lesões Encefálicas Traumáticas/complicações , Bromocriptina/uso terapêutico , Fármacos do Sistema Nervoso Central/uso terapêutico , Transtornos da Consciência/tratamento farmacológico , Adolescente , Adulto , Bromocriptina/administração & dosagem , Fármacos do Sistema Nervoso Central/administração & dosagem , Coma Pós-Traumatismo da Cabeça/tratamento farmacológico , Esquema de Medicação , Humanos , Pessoa de Meia-Idade , Estado Vegetativo Persistente/tratamento farmacológico , Estudos Retrospectivos , Medição de Risco , Índices de Gravidade do Trauma , Adulto Jovem
9.
Eur J Trauma Emerg Surg ; 45(3): 455-460, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29427061

RESUMO

PURPOSES: This study aimed to clarify the prognosis of polytrauma patients presenting to the emergency department (ED) with a Glasgow Coma Scale score (GCS) of 3. METHODS: A trauma registry system has been established at our institution since 2009. The current study reviewed patients in the registry who presented to the ED with a GCS of 3 from January 2011 to December 2015. Surviving and non-surviving patients were compared to identify the prognostic factors of patient survival. The study also aimed to determine the factors contributing to patients who survived with a GCS > 13 at discharge. RESULTS: During the study period, 145 patients were enrolled in the study, 119 of whom (82.1%) did not survive the traumatic insult. Of the 26 survivors, 13 (9.0%) had a GCS of 14 or 15 at discharge. The multiple logistic regression revealed that a lack of bilateral dilated and fixed pupils (BFDP) (OR 5.967, 95% CI 1.780-19.997, p = 0.004) and a GCS > 3 after resuscitation (OR 6.875, 95% CI 2.135-22.138, p = 0.001) were independent prognostic factors of survival. Based on the multiple logistic regression, an age under 40 years (OR 16.405, 95% CI 1.520-177.066, p = 0.021) and a GCS > 3 after resuscitation (OR 12.100, 95% CI 1.058-138.352, p = 0.045) were independent prognostic factors of a GCS > 13 at discharge. CONCLUSION: Aggressive resuscitation still provided benefit to polytrauma patients presenting with a GCS of 3, especially those with a rapid response to the resuscitation. Young patients with a deep coma on arrival had a higher probability of functional recovery after resuscitation in the ED.


Assuntos
Coma Pós-Traumatismo da Cabeça/fisiopatologia , Traumatismo Múltiplo/fisiopatologia , Distúrbios Pupilares/epidemiologia , Escala Resumida de Ferimentos , Traumatismos Abdominais/epidemiologia , Traumatismos Abdominais/terapia , Adulto , Fatores Etários , Idoso , Coma Pós-Traumatismo da Cabeça/epidemiologia , Traumatismos Craniocerebrais/epidemiologia , Traumatismos Craniocerebrais/fisiopatologia , Traumatismos Craniocerebrais/terapia , Extremidades/lesões , Feminino , Escala de Coma de Glasgow , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Mortalidade , Traumatismo Múltiplo/epidemiologia , Traumatismo Múltiplo/terapia , Prognóstico , Recuperação de Função Fisiológica , Reflexo Pupilar , Ressuscitação , Estudos Retrospectivos , Taiwan/epidemiologia , Traumatismos Torácicos/epidemiologia , Traumatismos Torácicos/terapia
10.
BMJ Open ; 8(10): e021488, 2018 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-30341115

RESUMO

INTRODUCTION: Ventilator-associated pneumonia (VAP) is the first cause of healthcare-associated infections in intensive care units (ICUs) and brain injury is one of the main risk factors for early-onset VAP. Antibiotic prophylaxis has been reported to decrease their occurrence in brain-injured patients, but a lack of controlled randomised trials and the risk of induction of bacterial resistance explain the low level of recommendations. The goal of this study is to determine whether a single dose of ceftriaxone within the 12 hours postintubation after severe brain injury can decrease the risk of early-onset VAP. METHODS AND ANALYSIS: The PROPHY-VAP is a French multicentre, randomised, double-blind, placebo-controlled, clinical trial. Adult brain-injured patients (n=320) with a Glasgow Coma Scale ≤12, requiring mechanical ventilation for more than 48 hours, are randomised to receive either a single dose of ceftriaxone 2 g or a placebo within the 12 hours after tracheal intubation. The primary endpoint is the proportion of patients developing VAP from the 2nd to the 7th day after mechanical ventilation. Secondary endpoints include the proportion of patients developing late VAP (>7 days after tracheal intubation), the number of ventilator-free days, VAP-free days and antibiotic-free days, length of stay in the ICU, proportion of patients with ventilator-associated events and mortality during their ICU stay. ETHICS AND DISSEMINATION: The initial research project was approved by the Institutional Review Board of OUEST III (France) on 20 October 2014 (registration No 2014-001668-36) and carried out according to the principles of the Declaration of Helsinki and the Clinical Trials Directive 2001/20/EC of the European Parliament relating to the Good Clinical Practice guidelines. The results of this study will be presented in national and international meetings and published in an international peer-reviewed journal. TRIAL REGISTRATION NUMBER: NCT02265406; Pre-results.


Assuntos
Antibacterianos/uso terapêutico , Ceftriaxona/uso terapêutico , Protocolos de Ensaio Clínico como Assunto , Coma Pós-Traumatismo da Cabeça/complicações , Pneumonia Associada à Ventilação Mecânica/tratamento farmacológico , Pneumonia Associada à Ventilação Mecânica/etiologia , Adulto , Idoso , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pneumonia Associada à Ventilação Mecânica/prevenção & controle , Ensaios Clínicos Controlados Aleatórios como Assunto
11.
Trials ; 18(1): 311, 2017 07 10.
Artigo em Inglês | MEDLINE | ID: mdl-28693604

RESUMO

BACKGROUND: Traumatic brain injury (TBI) has become the most common cause of death and disability in persons between 15 and 30 years of age, and about 10-15% of patients affected by TBI will end up in a coma. Coma caused by TBI presents a significant challenge to neuroscientists. Right median nerve electrical stimulation has been reported as a simple, inexpensive, non-invasive technique to speed recovery and improve outcomes for traumatic comatose patients. METHODS/DESIGN: This multicentre, prospective, randomised (1:1) controlled trial aims to demonstrate the efficacy and safety of electrical right median nerve stimulation (RMNS) in both accelerating emergence from coma and promoting long-term outcomes. This trial aims to enrol 380 TBI comatose patients to partake in either an electrical stimulation group or a non-stimulation group. Patients assigned to the stimulation group will receive RMNS in addition to standard treatment at an amplitude of 15-20 mA with a pulse width of 300 µs at 40 Hz ON for 20 s and OFF for 40 s. The electrical treatment will last for 8 h per day for 2 weeks. The primary endpoint will be the percentage of patients regaining consciousness 6 months after injury. The secondary endpoints will be Extended Glasgow Outcome Scale, Coma Recovery Scale-Revised and Disability Rating Scale scores at 28 days, 3 months and 6 months after injury; Glasgow Coma Scale, Glasgow Coma Scale Motor Part and Full Outline of Unresponsiveness scale scores on day 1 and day 7 after enrolment and 28 days, 3 months and 6 months after injury; duration of unconsciousness and mechanical ventilation; length of intensive care unit and hospital stays; and incidence of adverse events. DISCUSSION: Right median nerve electrical stimulation has been used as a safe, inexpensive, non-invasive therapy for neuroresuscitation of coma patients for more than two decades, yet no trial has robustly proven the efficacy and safety of this treatment. The Asia Coma Electrical Stimulation (ACES) trial has the following novel features compared with other major RMNS trials: (1) the ACES trial is an Asian multicentre randomised controlled trial; (2) RMNS therapy starts at an early stage 7-14 days after the injury; and (3) various assessment scales are used to evaluate the condition of patients. We hope the ACES trial will lead to optimal use of right median nerve electrical treatment. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02645578 . Registered on 23 December 2015.


Assuntos
Lesões Encefálicas Traumáticas/terapia , Coma Pós-Traumatismo da Cabeça/terapia , Terapia por Estimulação Elétrica/métodos , Nervo Mediano , Adolescente , Adulto , Idoso , Lesões Encefálicas Traumáticas/diagnóstico , Lesões Encefálicas Traumáticas/fisiopatologia , China , Protocolos Clínicos , Coma Pós-Traumatismo da Cabeça/diagnóstico , Coma Pós-Traumatismo da Cabeça/fisiopatologia , Cuidados Críticos , Avaliação da Deficiência , Terapia por Estimulação Elétrica/efeitos adversos , Feminino , Escala de Coma de Glasgow , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recuperação de Função Fisiológica , Projetos de Pesquisa , Respiração Artificial , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
12.
Neurocrit Care ; 27(2): 229-236, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28054286

RESUMO

INTRODUCTION: The Glasgow Coma Scale (GCS) has some limitations when evaluating the unconscious patient. This study aims to validate the Persian version of the FOUR (Full Outline of Unresponsiveness) score as a proposed substitute. METHODS: Two nurses, two nursing students, and two physicians scored the prepared Persian version of the FOUR and GCS in 84 patients with acute brain injury. The inter-rater agreement for the FOUR and the GCS scores was evaluated by the weighted kappa (κ w). The outcome prediction power of the scales was assessed by the area under the curve (AUC) in the ROC curve. RESULTS: The inter-rater agreement of the FOUR was excellent (κ w = 0.923, 95 % CI, 0.874-0.971) and comparable with the one of the GCS (κ w = 0.938, 95 % CI, 0.889-0.987). The area under the curve (AUC) for predicting in-hospital mortality (modified Rankin Scale: 6) was 0.835 for the FOUR (95 % CI, 0.739-0.907) and 0.772 for the GCS (95 % CI, 0.668-0.856) (P = 0.01). AUC for predicting poor outcome (modified Rankin Scale: 3-6) for the total FOUR score was 0.983 (95 % CI, 0.928-0.999), which is comparable with 0.987 for the total GCS score (95 % CI, 0.934-1.000). CONCLUSIONS: The researchers conclude that the Persian version of the FOUR score is a reliable and valid scale to assess unconscious patients with traumatic brain injury and can be substituted for the GCS.


Assuntos
Lesões Encefálicas Traumáticas/diagnóstico , Coma Pós-Traumatismo da Cabeça/diagnóstico , Índice de Gravidade de Doença , Índices de Gravidade do Trauma , Adulto , Idoso , Lesões Encefálicas Traumáticas/complicações , Coma Pós-Traumatismo da Cabeça/etiologia , Feminino , Escala de Coma de Glasgow/normas , Humanos , Unidades de Terapia Intensiva , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Reprodutibilidade dos Testes
14.
J Neurotrauma ; 32(20): 1584-9, 2015 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-25664378

RESUMO

The right median nerve as a peripheral portal to the central nervous system can be electrically stimulated to help coma arousal after traumatic brain injury (TBI). The present study set out to examine the efficacy and safety of right median nerve electrical stimulation (RMNS) in a cohort of 437 comatose patients after severe TBI from August 2005 to December 2011. The patients were enrolled 2 weeks after their injury and assigned to the RMNS group (n=221) receiving electrical stimulation for 2 weeks or the control group (n = 216) treated by standard management according to the date of birth in the month. The baseline data were similar. After the 2-week treatment, the RMNS-treated patients demonstrated a more rapid increase of the mean Glasgow Coma Score, although statistical significance was not reached (8.43 ± 4.98 vs. 7.47 ± 5.37, p = 0.0532). The follow-up data at 6-month post-injury showed a significantly higher proportion of patients who regained consciousness (59.8% vs. 46.2%, p = 0.0073). There was a lower proportion of vegetative persons in the RMNS group than in the control group (17.6% vs. 22.0%, p = 0.0012). For persons regaining consciousness, the functional independence measurement (FIM) score was higher among the RMNS group patients (91.45 ± 8.65 vs. 76.23 ± 11.02, p < 0.001). There were no unique complications associated with the RMNS treatment. The current study, although with some limitations, showed that RMNS may serve as an easy, effective, and noninvasive technique to promote the recovery of traumatic coma in the early phase.


Assuntos
Lesões Encefálicas/complicações , Coma Pós-Traumatismo da Cabeça/terapia , Terapia por Estimulação Elétrica/métodos , Nervo Mediano , Adulto , Coma Pós-Traumatismo da Cabeça/etiologia , Terapia por Estimulação Elétrica/efeitos adversos , Feminino , Seguimentos , Escala de Coma de Glasgow , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
15.
J Neurotrauma ; 32(5): 353-8, 2015 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-25233298

RESUMO

A multicenter randomized controlled trial of patients with severe traumatic brain injury who received therapeutic hypothermia or fever control was performed from 2002 to 2008 in Japan (BHYPO). There was no difference in the therapeutic effect on traumatic brain injury between the two groups. The efficacy of hypothermia treatment and the objective of the treatment were reexamined based on a secondary analysis of the BHYPO trial in 135 patients (88 treated with therapeutic hypothermia and 47 with fever control). This analysis was performed to examine clinical outcomes according to the CT classification of the Traumatic Coma Data Bank on admission. Clinical outcomes were evaluated with the Glasgow Outcome Scale and mortality at 6 months after injury. Good recovery and moderate disability were defined as favorable outcomes. Favorable outcomes in young patients (≤50 years old) with evacuated mass lesions significantly increased from 33.3% with fever control to 77.8% with therapeutic hypothermia. Patients with diffuse injury III who were treated with therapeutic hypothermia, however, had significantly higher mortality than patients treated with fever control. It was difficult to control intracranial pressure with hypothermia for patients with diffuse injury III, but hypothermia was effective for young patients with an evacuated mass lesion.


Assuntos
Lesões Encefálicas/terapia , Coma Pós-Traumatismo da Cabeça/terapia , Hipotermia Induzida/métodos , Adulto , Lesões Encefálicas/classificação , Lesões Encefálicas/diagnóstico por imagem , Coma Pós-Traumatismo da Cabeça/classificação , Coma Pós-Traumatismo da Cabeça/diagnóstico por imagem , Feminino , Escala de Resultado de Glasgow , Humanos , Masculino , Pessoa de Meia-Idade , Recuperação de Função Fisiológica , Tomografia Computadorizada por Raios X
16.
J Neurol ; 262(2): 307-15, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25381459

RESUMO

Patients with unresponsive wakefulness syndrome (UWS) or in minimally conscious state (MCS) after brain injury show significant fluctuations in their behavioural abilities over time. As the importance of event-related potentials (ERPs) in the detection of traces of consciousness increases, we investigated the retest reliability of ERPs with repeated tests at four different time points. Twelve healthy controls and 12 inpatients (8 UWS, 4 MCS; 6 traumatic, 6 non-traumatic) were tested twice a day (morning, afternoon) for 2 days with an auditory oddball task. ERPs were recorded with a 256-channel-EEG system, and correlated with behavioural test scores in the Coma Recovery Scale-revised (CRS-R). The number of identifiable P300 responses varied between zero and four in both groups. Reliabilities varied between Krippendorff's α = 0.43 for within-day comparison, and α = 0.25 for between-day comparison in the patient group. Retest reliability was strong for the CRS-R scores for all comparisons (α = 0.83-0.95). The stability of auditory information processing in patients with disorders of consciousness is the basis for other, even more demanding tasks and cognitive potentials. The relatively low ERP-retest reliability suggests that it is necessary to perform repeated tests, especially when probing for consciousness with ERPs. A single negative ERP test result may be mistaken for proof that a UWS patient truly is unresponsive.


Assuntos
Coma Pós-Traumatismo da Cabeça/fisiopatologia , Potenciais Evocados P300/fisiologia , Potenciais Evocados Auditivos/fisiologia , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Adulto Jovem
17.
Funct Neurol ; 29(3): 201-5, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25473741

RESUMO

In this report, we describe the case of a patient who has remained in a comatose state for more than one year after a traumatic and hypoxic brain injury. This state, which we refer to as long-lasting coma (LLC), may be a disorder of consciousness with significantly different features from those of conventional coma, the vegetative state, or brain death. On the basis of clinical, neurophysiological and neuroimaging data, we hypothesize that a multilevel involvement of the ascending reticular activating system is required in LLC. This description may be useful for the identification of other patients suffering from this severe disorder of consciousness, which raises important ethical issues.


Assuntos
Encéfalo/patologia , Encéfalo/fisiopatologia , Coma Pós-Traumatismo da Cabeça/diagnóstico , Encéfalo/metabolismo , Coma Pós-Traumatismo da Cabeça/etiologia , Eletroencefalografia , Glucose/metabolismo , Humanos , Hipóxia Encefálica/complicações , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
18.
J Craniofac Surg ; 25(4): 1280-3, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25006909

RESUMO

BACKGROUND: Posttraumatic hydrocephalus (PTH) is a frequent complication secondary to traumatic brain injury, especially among patients keeping chronic unconscious. And effects of shunt implantation on improving outcomes among these patients are still controversial. This study was aimed to assess the long-term outcomes following shunt implantation among patients who had PTH and kept chronic unconscious. METHODS: A prospective study was performed to include patients who had PTH and remained in severe conscious disturbance from March 2010 to December 2010. All of included patients would have shunt implantation and be closely followed up at least for 2 years to assess final outcomes. RESULTS: Fifteen patients having PTH were identified. Before shunt implantation, 2 patients kept vegetative state (Glasgow Outcome Scale [GOS] score 2), and 13 patients kept minimally consciousness with severe disability (GOS score 3). After shunt implantation, the shunt device was removed because of intracranial infection in 1 patient, and the other patient died because of allergic shock. Among the remaining 13 patients, finally 7 patients had improvement on GOS or Modified Barthel Index (MBI) score during the 2-year follow-up, but only 1 patient achieved a good outcome (GOS score 4, independent life). Among them, 5 patients' outcomes improved as assessed by GOS or MBI score during the first 3 months following shunt implantation. During the fourth to sixth month following shunt implantation, there were 2 patients who showed first rise on GOS or MBI score. Beyond 6 months, no patient showed initial improvement. And among patients who showed improvement, most of them kept improving during a certain time. CONCLUSIONS: A proportion of patients who had PTH and remained in severe conscious disturbance would benefit from shunt implantation, and the improvement may turn up late after this procedure.


Assuntos
Derivações do Líquido Cefalorraquidiano , Coma Pós-Traumatismo da Cabeça/cirurgia , Sedação Consciente , Hidrocefalia/cirurgia , Complicações Pós-Operatórias/cirurgia , Adulto , Idoso , Coma Pós-Traumatismo da Cabeça/diagnóstico , Feminino , Seguimentos , Escala de Resultado de Glasgow , Humanos , Hidrocefalia/diagnóstico , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico
19.
Zh Vopr Neirokhir Im N N Burdenko ; 78(1): 4-13; discussion 13, 2014.
Artigo em Inglês, Russo | MEDLINE | ID: mdl-24761591

RESUMO

In this paper, the relationship between brain lesion localization (verified by magnetic resonance imaging (MRI)) and the severity of traumatic brain injury (TBI) and its outcomes is presented. Magnetic resonance studies in different modes (T1, T2, FLAIR, DWI, DTI, T2 * GRE, SWAN) were performed in 162 patients with acute TBI. Statistical analysis was done using Statistica 6, 8 software and R programming language. A new advanced MRI-based classification of TBI was introduced implying the assessment of hemispheric and brainstem traumatic lesions level and localization. Statistically significant correlations were found between the Glasgow coma and outcome scales scores (p < 0.001), and the proposed MRI grading scale scores, which means a high prognostic value of the new classification. The knowledge of injured brain microanatomy coming from sensitive neuroimaging, in conjunction with the assessment of mechanisms, aggravating factors and clinical manifestation of brain trauma is the basis for the actual predictive model of TBI. The proposed advanced MRI classification contributes to this concept development.


Assuntos
Lesões Encefálicas/diagnóstico , Coma Pós-Traumatismo da Cabeça/diagnóstico , Imageamento por Ressonância Magnética/métodos , Adolescente , Adulto , Idoso , Lesões Encefálicas/classificação , Criança , Interpretação Estatística de Dados , Feminino , Escala de Coma de Glasgow , Humanos , Interpretação de Imagem Assistida por Computador , Masculino , Pessoa de Meia-Idade , Prognóstico
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