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1. AB1415 GUSELKUMAB INDUCTION RESTORES INTESTINAL IMMUNE HOMEOSTASIS AND PROMOTES EPITHELIAL REPAIR IN MODERATELY TO SEVERELY ACTIVE ULCERATIVE COLITIS

Author

Sridhar, S., primary, Hart, A., additional, Venkat, S., additional, Ruane, D., additional, Horowitz, D., additional, Lee, T., additional, Waterworth, D., additional, Huang, K. H. G., additional, Germinaro, M., additional, Vetter, M., additional, Cua, D., additional, Freeman, T. C., additional, Sisk, C., additional, Mcrae, B., additional, Verstockt, B., additional, Rubin, D. T., additional, Sands, B. E., additional, and Branigan, P., additional

Published
2024
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2. OP0036 EFFICACY, SAFETY, AND PHARMACOKINETICS OF ANTI-CD40 ANTIBODY ABIPRUBART (KPL-404) IN PATIENTS WITH RHEUMATOID ARTHRITIS: A PHASE 2, RANDOMIZED, PLACEBO-CONTROLLED 12-WEEK-TREATMENT PROOF-OF-CONCEPT STUDY

Author

Jenkins, E., primary, Louw, I., additional, Balog, A., additional, Van Duuren, E., additional, Horowitz, D. L., additional, Jaworski, J., additional, Kivitz, A., additional, Ujfalussy, I., additional, Pirello, J., additional, Tessari, E., additional, Wang, S., additional, and Paolini, J. F., additional

Published
2024
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3. OP23 Guselkumab induction restores intestinal immune homeostasis and promotes epithelial repair in moderately to severely active Ulcerative Colitis

Author

Sridhar, S, primary, Hart, A, additional, Venkat, S, additional, Ruane, D, additional, Horowitz, D, additional, Lee, T, additional, Waterworth, D, additional, Huang, K H G, additional, Germinaro, M, additional, Vetter, M, additional, Cua, D, additional, Freeman, T C, additional, Sisk, C, additional, McRae, B, additional, Verstockt, B, additional, Rubin, D T, additional, Sands, B E, additional, and Branigan, P, additional

Published
2024
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4. 77 JNJ-77242113 treatment induces strong systemic pharmacodynamic response versus placebo in patients with plaque psoriasis: Results from the phase 2, FRONTIER 1 study

Author

Pinter, A., primary, Eyerich, K., additional, Paller, A., additional, Kannan, A., additional, Strawn, D., additional, Horowitz, D., additional, Bhagat, S., additional, Richards, D., additional, Ruane, D., additional, McRae, B., additional, Yang, Y.-W., additional, Miller, M., additional, DeKlotz, C., additional, and Bissonnette, R., additional

Published
2023
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7. POS0236 SAFETY AND EFFICACY OF NEUROSTIMULATION WITH A MINIATURIZED VAGUS NERVE STIMULATION DEVICE IN PATIENTS WITH MULTIDRUG-REFRACTORY RHEUMATOID ARTHRITIS: 24-WEEK FOLLOW-UP OF A RANDOMIZED CONTROLLED FIRST-IN-HUMAN TRIAL

Author

Gaylis, N., primary, Genovese, M. C., additional, Sikes, D., additional, Kivitz, A., additional, Horowitz, D. M., additional, Peterfy, C., additional, Levine, Y., additional, Evangelista, M., additional, and Chernoff, D., additional

Published
2022
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13. Determination of the optical constants of ZnSe films by spectroscopic ellipsometry

Author

Dahmani, R., Salamanca-Riba, L., Nguyen, N.V., Chandler-Horowitz, D., and Jonker, B.T.

Subjects
Thin films -- Electric properties, Zinc compounds -- Research, Physics
Abstract

Spectroscopic ellipsometry is used to analyze edge region of thin single-crystal films of ZnSe at room temperature and the results are compared with those of the bulk samples. Pseudo dielectric function of ZnSe thin films is calculated. Interfacial strains do not affect the optical properties of this thick film.

Published
1994

14. Monitoring Inflammation (Including Fever) in Acute Brain Injury

Author

Provencio J. J., Badjatia N., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Provencio, J, Badjatia, N, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Puppo, C, Riker, R, Robertson, C, Schmidt, J, and Taccone, F

Subjects
medicine.medical_specialty, Neurology, Critical Care, Fever, Monitoring, medicine.medical_treatment, Inflammation, Targeted temperature management, Critical Care and Intensive Care Medicine, C-reactive protein, Predictive Value of Tests, White blood cell, Neurocritical care, medicine, Humans, Brain injury, Intensive care medicine, Immunity, Cellular, biology, business.industry, Shivering, Neurointensive care, Prognosis, medicine.anatomical_structure, Brain Injuries, Inflammatory cascade, biology.protein, Neurology (clinical), Inflammation Mediators, medicine.symptom, business, Biomarkers
Abstract

Inflammation is an important part of the normal physiologic response to acute brain injury (ABI). How inflammation is manifest determines if it augments or hinders the resolution of ABI. Monitoring body temperature, the cellular arm of the inflammatory cascade, and inflammatory proteins may help guide therapy. This summary will address the utility of inflammation monitoring in brain-injured adults. An electronic literature search was conducted for English language articles describing the testing, utility, and optimal methods to measure inflammation in ABI. Ninety-four articles were included in this review. Current evidence suggests that control of inflammation after ABI may hold promise for advances in good outcomes. However, our understanding of how much inflammation is good and how much is deleterious is not yet clear. Several important concepts emerge form our review. First, while continuous temperature monitoring of core body temperature is recommended, temperature pattern alone is not useful in distinguishing infectious from noninfectious fever. Second, when targeted temperature management is used, shivering should be monitored at least hourly. Finally, white blood cell levels and protein markers of inflammation may have a limited role in distinguishing infectious from noninfectious fever. Our understanding of optimal use of inflammation monitoring after ABI is limited currently but is an area of active investigation.

Published
2014
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15. Intracranial Pressure and Cerebral Perfusion Pressure Monitoring in Non-TBI Patients: Special Considerations

Author

Helbok R., Olson D. W. M., Le Roux P. D., Vespa P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Helbok, R, Olson, D, Le Roux, P, Vespa, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, and Taccone, F

Subjects
Ventriculostomy, medicine.medical_specialty, Neurology, Subarachnoid hemorrhage, Critical Care, Intracranial Pressure, Traumatic brain injury, medicine.medical_treatment, Critical Care and Intensive Care Medicine, medicine, Humans, Cerebral perfusion pressure, Intracranial pressure, Coma, Intracerebral hemorrhage, Brain Diseases, integumentary system, business.industry, Patient Selection, musculoskeletal, neural, and ocular physiology, Prognosis, medicine.disease, Neurophysiological Monitoring, humanities, nervous system diseases, Brain edema, Coma, CPP, ICP, Intracerebral hemorrhage, Subarachnoid hemorrhage, Ventriculostomy, Cerebrovascular Circulation, Anesthesia, Neurology (clinical), medicine.symptom, business
Abstract

The effect of intracranial pressure (ICP) and the role of ICP monitoring are best studied in traumatic brain injury (TBI). However, a variety of acute neurologic illnesses e.g., subarachnoid hemorrhage, intracerebral hemorrhage, ischemic stroke, meningitis/encephalitis, and select metabolic disorders, e.g., liver failure and malignant, brain tumors can affect ICP. The purpose of this paper is to review the literature about ICP monitoring in conditions other than TBI and to provide recommendations how the technique may be used in patient management. A PubMed search between 1980 and September 2013 identified 989 articles; 225 of which were reviewed in detail. The technique used to monitor ICP in non-TBI conditions is similar to that used in TBI; however, indications for ICP monitoring often are intertwined with the presence of obstructive hydrocephalus and hence the use of ventricular catheters is more frequent. Increased ICP can adversely affect outcome, particularly when it fails to respond to treatment. However, patients with elevated ICP can still have favorable outcomes. Although the influence of ICP-based care on outcome in non-TBI conditions appears less robust than in TBI, monitoring ICP and cerebral perfusion pressure can play a role in guiding therapy in select patients.

Published
2014
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16. International Multidisciplinary Consensus Conference on Multimodality Monitoring: ICU Processes of Care

Author

McNett M. M., Horowitz D. A., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Hutchinson P., Kumar M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Mcnett, M, Horowitz, D, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Hutchinson, P, Kumar, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, and Taccone, F

Subjects
medicine.medical_specialty, Consensus, Internationality, Critical Care, Population, MEDLINE, Benchmark, Critical Care and Intensive Care Medicine, law.invention, Clinical Protocols, Ambulatory care, law, Intensive care, Critical care nursing, Health care, Neurocritical care, Humans, Medicine, Mortality, Intensive care medicine, education, Outcome, education.field_of_study, business.industry, Process Assessment, Health Care, Neurointensive care, medicine.disease, Quality, Neurophysiological Monitoring, Intensive care unit, Brain Injuries, Neurology (clinical), Medical emergency, business
Abstract

There is an increased focus on evaluating processes of care, particularly in the high acuity and cost environment of intensive care. Evaluation of neurocritical-specific care and evidence-based protocol implementation are needed to effectively determine optimal processes of care and effect on patient outcomes. General quality measures to evaluate intensive care unit (ICU) processes of care have been proposed; however, applicability of these measures in neurocritical care populations has not been established. A comprehensive literature search was conducted for English language articles from 1990 to August 2013. A total of 1,061 articles were reviewed, with 145 meeting criteria for inclusion in this review. Care in specialized neurocritical care units or by neurocritical teams can have a positive impact on mortality, length of stay, and in some cases, functional outcome. Similarly, implementation of evidence-based protocol-directed care can enhance outcome in the neurocritical care population. There is significant evidence to support suggested quality indicators for the general ICU population, but limited research regarding specific use in neurocritical care. Quality indices for neurocritical care have been proposed; however, additional research is needed to further validate measures.

Published
2014
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17. Monitoring Nutrition and Glucose in Acute Brain Injury

Author

Badjatia N., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Badjatia, N, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, and Taccone, F

Subjects
Blood Glucose, medicine.medical_specialty, Neurology, Critical Care, Population, Critical Care and Intensive Care Medicine, Enteral Nutrition, medicine, Humans, education, Adverse effect, Intensive care medicine, Neurophysiological Monitoring, Blood glucose monitoring, education.field_of_study, medicine.diagnostic_test, business.industry, Neurointensive care, Calorimetry, Indirect, Anthropometry, Nutrition Assessment, Parenteral nutrition, Brain Injuries, Neurology (clinical), Energy Metabolism, Brain injury, Energy expenditure, Glucose, Monitoring, Nitrogen balance, Nutritional assessment, business
Abstract

The metabolic response to injury is well described; however, very little is understood about optimal markers to measure this response. This summary will address the current evidence about monitoring nutritional status including blood glucose after acute brain injury (ABI). An electronic literature search was conducted for English language articles describing the testing, utility, and optimal methods to measure nutritional status and blood glucose levels in the neurocritical care population. A total of 45 articles were included in this review. Providing adequate and timely nutritional support can help improve outcome after ABI. However, the optimal content and total nutrition requirements remain unclear. In addition, how best to monitor the nutritional status in ABI is still being elucidated, and at present, there is no validated optimal method to monitor the global response to nutritional support on a day-to-day basis in ABI patients. Nitrogen balance may be monitored to assess the adequacy of caloric intake as it relates to protein energy metabolism, but indirect calorimetry, anthropometric measurement, or serum biomarker requires further validation. The adverse effects of hyperglycemia in ABI are well described, and data indicate that blood glucose should be carefully controlled in critically ill patients. However, the optimal frequency or duration for blood glucose monitoring after ABI remains poorly defined. There are significant knowledge gaps about monitoring nutritional status and response to nutritional interventions in ABI; these need to be addressed and hence few recommendations can be made. The optimal frequency and duration of blood glucose monitoring need further study.

Published
2014
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18. Multimodality Monitoring: Informatics, Integration Data Display and Analysis

Author

Schmidt J. M., De Georgia M., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Taccone F., Schmidt, J, De Georgia, M, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, and Taccone, F

Subjects
Information management, Telemedicine, Decision support system, Critical Care, business.industry, Critical care, Data display, Data integration, Decision support, Informatics, Neuromonitoring, Critical Care and Intensive Care Medicine, computer.software_genre, Neurophysiological Monitoring, Health informatics, Data science, Data warehouse, Systems Integration, Intensive care, Informatics, Data Display, Humans, Medicine, Medical Informatics Applications, Neurology (clinical), business, computer, Data integration
Abstract

The goal of multimodality neuromonitoring is to provide continuous, real-time assessment of brain physiology to prevent, detect, and attenuate secondary brain injury. Clinical informatics deals with biomedical data, information, and knowledge including their acquisition, storage, retrieval, and optimal use for clinical decision-making. An electronic literature search was conducted for English language articles describing the use of informatics in the intensive care unit setting from January 1990 to August 2013. A total of 64 studies were included in this review. Clinical informatics infrastructure should be adopted that enables a wide range of linear and nonlinear analytical methods be applied to patient data. Specific time epochs of clinical interest should be reviewable. Analysis strategies of monitor alarms may help address alarm fatigue. Ergonomic data display that present results from analyses with clinical information in a sensible uncomplicated manner improve clinical decision-making. Collecting and archiving the highest resolution physiologic and phenotypic data in a comprehensive open format data warehouse is a crucial first step toward information management and two-way translational research for multimodality monitoring. The infrastructure required is largely the same as that needed for telemedicine intensive care applications, which under the right circumstances improves care quality while reducing cost.

Published
2014
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19. OnPLS-Based Multi-Block Data Integration : A Multivariate Approach to Interrogating Biological Interactions in Asthma

Author

Reinke, SN, Galindo-Prieto, B, Skotare, T, Broadhurst, DI, Singhania, A, Horowitz, D, Djukanovic, R, Hinks, TSC, Geladi, P, Trygg, J, and Wheelock, CE

Subjects
Adult, Data Analysis, Male, Proteomics, Systems Biology, T-Lymphocytes, Genomics, Middle Aged, Article, Asthma, Analytical Chemistry, Young Adult, Multivariate Analysis, Analytisk kemi, Humans, Metabolomics, Female
Abstract

Integration of multiomics data remains a key challenge in fulfilling the potential of comprehensive systems biology. Multiple-block orthogonal projections to latent structures (OnPLS) is a Multi projection method that simultaneously models multiple data matrices, reducing feature space without relying on a priori biological knowledge. In order to improve the interpretability of OnPLS models, the associated multi-block variable influence on orthogonal projections (MB-VIOP) method is used to identify variables with the highest contribution to the model. This study combined OnPLS and MB-VIOP with interactive visualization methods to interrogate an exemplar multiomics study, using a subset of 22 individuals from an asthma cohort. Joint data structure in six data blocks was assessed: transcriptomics; metabolomics; targeted assays for sphingolipids, oxylipins, and fatty acids; and a clinical block including lung function, immune cell differentials, and cytokines. The model identified seven components, two of which had contributions from all blocks (globally joint structure) and five that had contributions from two to five blocks (locally joint structure). Components 1 and 2 were the most informative, identifying differences between healthy controls and asthmatics and a disease sex interaction, respectively. The interactions between features selected by MB-VIOP were visualized using chord plots, yielding putative novel insights into asthma disease pathogenesis, the effects of asthma treatment, and biological roles of uncharacterized genes. For example, the gene ATP6 V1G1, which has been implicated in osteoporosis, correlated with metabolites that are dysregulated by inhaled corticoid steroids (ICS), providing insight into the mechanisms underlying bone density loss in asthma patients taking ICS. These results show the potential for OnPLS, combined with MB-VIOP variable selection and interaction visualization techniques, to generate hypotheses from multiomics studies and inform biology.

Published
2018

22. An Impaired Innate Immune Response In Airway Smooth Muscle Cells From Chronic Cough Patients

Author

Rossios, C, Pavlidis, S, Gibeon, D, Horowitz, D, Branigan, P, Loza, M, Baribaud, F, Rao, N, Chung, F, Adcock, IM, and Commission of the European Communities

Subjects
Science & Technology, Critical Care Medicine, General & Internal Medicine, Respiratory System, 11 Medical And Health Sciences, Life Sciences & Biomedicine, respiratory tract diseases
Abstract

Chronic cough is associated with airway inflammation and remodelling. Abnormal airway smooth muscle cell (ASMC) function may underlie mechanisms of chronic cough. Our objective was to examine the transcriptome and focused secretome of ASMCs from chronic cough patients and healthy non-cough volunteers. ASMC gene expression profiling was performed at baseline and/or after stimulation with polyinosinic:polycytidylic acid (poly(I:C)) to mimic viral infection. Supernatants were collected for multiplex analysis. Our results showed no significant differentially expressed genes (DEGs, false discovery rate (FDR) 1.5 fold-change, FDR

Published
2017

23. International Multidisciplinary Consensus Conference on Multimodality Monitoring: ICU Processes of Care

Author

Mcnett, M, Horowitz, D, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Hutchinson, P, Kumar, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, McNett M. M., Horowitz D. A., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Hutchinson P., Kumar M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Mcnett, M, Horowitz, D, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Hutchinson, P, Kumar, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, McNett M. M., Horowitz D. A., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Hutchinson P., Kumar M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

There is an increased focus on evaluating processes of care, particularly in the high acuity and cost environment of intensive care. Evaluation of neurocritical-specific care and evidence-based protocol implementation are needed to effectively determine optimal processes of care and effect on patient outcomes. General quality measures to evaluate intensive care unit (ICU) processes of care have been proposed; however, applicability of these measures in neurocritical care populations has not been established. A comprehensive literature search was conducted for English language articles from 1990 to August 2013. A total of 1,061 articles were reviewed, with 145 meeting criteria for inclusion in this review. Care in specialized neurocritical care units or by neurocritical teams can have a positive impact on mortality, length of stay, and in some cases, functional outcome. Similarly, implementation of evidence-based protocol-directed care can enhance outcome in the neurocritical care population. There is significant evidence to support suggested quality indicators for the general ICU population, but limited research regarding specific use in neurocritical care. Quality indices for neurocritical care have been proposed; however, additional research is needed to further validate measures.

Published
2014

24. Multimodality Monitoring Consensus Statement: Monitoring in Emerging Economies

Author

Figaji, A, Puppo, C, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Figaji A., Puppo C., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Riker R., Robertson C., Schmidt J. M., Taccone F., Figaji, A, Puppo, C, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Figaji A., Puppo C., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

The burden of disease and so the need for care is often greater at hospitals in emerging economies. This is compounded by frequent restrictions in the delivery of good quality clinical care due to resource limitations. However, there is substantial heterogeneity in this economically defined group, such that advanced brain monitoring is routinely practiced at certain centers that have an interest in neurocritical care. It also must be recognized that significant heterogeneity in the delivery of neurocritical care exists even within individual high-income countries (HICs), determined by costs and level of interest. Direct comparisons of data between HICs and the group of low- and middle-income countries (LAMICs) are made difficult by differences in patient demographics, selection for ICU admission, therapies administered, and outcome assessment. Evidence suggests that potential benefits of multimodality monitoring depend on an appropriate environment and clinical expertise. There is no evidence to suggest that patients in LAMICs where such resources exist should be treated any differently to patients from HICs. The potential for outcome benefits in LAMICs is arguably greater in absolute terms because of the large burden of disease; however, the relative cost/benefit ratio of such monitoring in this setting must be viewed in context of the overall priorities in delivering health care at individual institutions.

Published
2014

25. Multimodality Monitoring: Informatics, Integration Data Display and Analysis

Author

Schmidt, J, De Georgia, M, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Taccone, F, Schmidt J. M., De Georgia M., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Taccone F., Schmidt, J, De Georgia, M, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Taccone, F, Schmidt J. M., De Georgia M., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., and Taccone F.

Abstract

The goal of multimodality neuromonitoring is to provide continuous, real-time assessment of brain physiology to prevent, detect, and attenuate secondary brain injury. Clinical informatics deals with biomedical data, information, and knowledge including their acquisition, storage, retrieval, and optimal use for clinical decision-making. An electronic literature search was conducted for English language articles describing the use of informatics in the intensive care unit setting from January 1990 to August 2013. A total of 64 studies were included in this review. Clinical informatics infrastructure should be adopted that enables a wide range of linear and nonlinear analytical methods be applied to patient data. Specific time epochs of clinical interest should be reviewable. Analysis strategies of monitor alarms may help address alarm fatigue. Ergonomic data display that present results from analyses with clinical information in a sensible uncomplicated manner improve clinical decision-making. Collecting and archiving the highest resolution physiologic and phenotypic data in a comprehensive open format data warehouse is a crucial first step toward information management and two-way translational research for multimodality monitoring. The infrastructure required is largely the same as that needed for telemedicine intensive care applications, which under the right circumstances improves care quality while reducing cost.

Published
2014

26. Monitoring Inflammation (Including Fever) in Acute Brain Injury

Author

Provencio, J, Badjatia, N, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Provencio J. J., Badjatia N., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Provencio, J, Badjatia, N, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Provencio J. J., Badjatia N., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Inflammation is an important part of the normal physiologic response to acute brain injury (ABI). How inflammation is manifest determines if it augments or hinders the resolution of ABI. Monitoring body temperature, the cellular arm of the inflammatory cascade, and inflammatory proteins may help guide therapy. This summary will address the utility of inflammation monitoring in brain-injured adults. An electronic literature search was conducted for English language articles describing the testing, utility, and optimal methods to measure inflammation in ABI. Ninety-four articles were included in this review. Current evidence suggests that control of inflammation after ABI may hold promise for advances in good outcomes. However, our understanding of how much inflammation is good and how much is deleterious is not yet clear. Several important concepts emerge form our review. First, while continuous temperature monitoring of core body temperature is recommended, temperature pattern alone is not useful in distinguishing infectious from noninfectious fever. Second, when targeted temperature management is used, shivering should be monitored at least hourly. Finally, white blood cell levels and protein markers of inflammation may have a limited role in distinguishing infectious from noninfectious fever. Our understanding of optimal use of inflammation monitoring after ABI is limited currently but is an area of active investigation.

Published
2014

27. Monitoring Nutrition and Glucose in Acute Brain Injury

Author

Badjatia, N, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Badjatia N., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Badjatia, N, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Badjatia N., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

The metabolic response to injury is well described; however, very little is understood about optimal markers to measure this response. This summary will address the current evidence about monitoring nutritional status including blood glucose after acute brain injury (ABI). An electronic literature search was conducted for English language articles describing the testing, utility, and optimal methods to measure nutritional status and blood glucose levels in the neurocritical care population. A total of 45 articles were included in this review. Providing adequate and timely nutritional support can help improve outcome after ABI. However, the optimal content and total nutrition requirements remain unclear. In addition, how best to monitor the nutritional status in ABI is still being elucidated, and at present, there is no validated optimal method to monitor the global response to nutritional support on a day-to-day basis in ABI patients. Nitrogen balance may be monitored to assess the adequacy of caloric intake as it relates to protein energy metabolism, but indirect calorimetry, anthropometric measurement, or serum biomarker requires further validation. The adverse effects of hyperglycemia in ABI are well described, and data indicate that blood glucose should be carefully controlled in critically ill patients. However, the optimal frequency or duration for blood glucose monitoring after ABI remains poorly defined. There are significant knowledge gaps about monitoring nutritional status and response to nutritional interventions in ABI; these need to be addressed and hence few recommendations can be made. The optimal frequency and duration of blood glucose monitoring need further study.

Published
2014

28. International Multidisciplinary Consensus Conference on Multimodality Monitoring: Cerebral Metabolism

Author

Hutchinson, P, O'Phelan, K, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Hutchinson P., O'Phelan K., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Hutchinson, P, O'Phelan, K, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Hutchinson P., O'Phelan K., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Microdialysis is a powerful technique, which enables the chemistry of the extracellular space to be measured directly. Applying this technique to patients in neurointensive care has increased our understanding of the pathophysiology of traumatic brain injury and spontaneous hemorrhage. In parallel, it is important to determine the place of microdialysis in assisting in the management of patients on an individual intention to treat basis. This is made possible by the availability of analyzers which can measure the concentration of glucose, pyruvate, lactate, and glutamate at the bedside. Samples can then be stored for later analysis of other substrate and metabolites e.g., other amino acids and cytokines. The objective of this paper is to review the fundamental literature pertinent to the clinical application of microdialysis in neurointensive care and to give recommendations on how the technique can be applied to assist in patient management and contribute to outcome. A literature search detected 1,933 publications of which 55 were used for data abstraction and analysis. The role of microdialysis was evaluated in three conditions (traumatic brain injury, subarachnoid hemorrhage, and intracerebral hemorrhage) and recommendations focused on three fundamental areas (relationship to outcome, application of microdialysis to guide therapy, and the ability of microdialysis to predict secondary deterioration).

Published
2014

29. Clinical Monitoring Scales in Acute Brain Injury: Assessment of Coma, Pain, Agitation, and Delirium

Author

Riker, R, Fugate, J, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Robertson, C, Schmidt, J, Taccone, F, Riker R. R., Fugate J. E., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Robertson C., Schmidt J. M., Taccone F., Riker, R, Fugate, J, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Robertson, C, Schmidt, J, Taccone, F, Riker R. R., Fugate J. E., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Serial clinical examination represents the most fundamental and basic form of neurological monitoring, and is often the first and only form of such monitoring in patients. Even in patients subjected to physiological monitoring using a range of technologies, the clinical examination remains an essential tool to follow neurological progress. Key aspects of the clinical examination have now been systematized into scoring schemes, and address consciousness, pain, agitation, and delirium (PAD). The Glasgow Coma Scale has been the traditional tool to measure consciousness, but the full outline of unresponsiveness (FOUR) score has recently been validated in a variety of settings, and at present, both represent clinically useful tools. Assessment of PAD in neurologically compromised patients present special challenges. For pain, the Numeric Rating Scale is the preferred initial approach, with either the Behavioral Pain Scale or the Critical Care Pain Observation Tool in subjects who are not able to respond. The Nociception Coma Scale-Revised may be useful in patients with severe disorders of consciousness. Conventional sedation scoring tools for critical care, such as the Richmond Area Sedation Scale (RASS) and Sedation–Agitation Scale (SAS) may provide reasonable tools in some neurocritical care patients. The use of sedative drugs and neuromuscular blockers may invalidate the use of some clinical examination tools in others. The use of sedation interruption to assess neurological status can result in physiological derangement in unstable patients (such as those with uncontrolled intracranial hypertension), and is not recommended.

Published
2014

30. Monitoring of Brain and Systemic Oxygenation in Neurocritical Care Patients

Author

Oddo, M, Bosel, J, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Oddo M., Bosel J., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Oddo, M, Bosel, J, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Oddo M., Bosel J., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Maintenance of adequate oxygenation is a mainstay of intensive care, however, recommendations on the safety, accuracy, and the potential clinical utility of invasive and non-invasive tools to monitor brain and systemic oxygenation in neurocritical care are lacking. A literature search was conducted for English language articles describing bedside brain and systemic oxygen monitoring in neurocritical care patients from 1980 to August 2013. Imaging techniques e.g., PET are not considered. A total of 281 studies were included, the majority described patients with traumatic brain injury (TBI). All tools for oxygen monitoring are safe. Parenchymal brain oxygen (PbtO2) monitoring is accurate to detect brain hypoxia, and it is recommended to titrate individual targets of cerebral perfusion pressure (CPP), ventilator parameters (PaCO2, PaO2), and transfusion, and to manage intracranial hypertension, in combination with ICP monitoring. SjvO2 is less accurate than PbtO2. Given limited data, NIRS is not recommended at present for adult patients who require neurocritical care. Systemic monitoring of oxygen (PaO2, SaO2, SpO2) and CO2 (PaCO2, end-tidal CO2) is recommended in patients who require neurocritical care.

Published
2014

31. Monitoring of Cerebral Blood Flow and Ischemia in the Critically Ill

Author

Miller, C, Armonda, R, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Miller C., Armonda R., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Miller, C, Armonda, R, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Miller C., Armonda R., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Secondary ischemic injury is common after acute brain injury and can be evaluated with the use of neuromonitoring devices. This manuscript provides guidelines for the use of devices to monitor cerebral blood flow (CBF) in critically ill patients. A Medline search was conducted to address essential pre-specified questions related to the utility of CBF monitoring. Peer-reviewed recommendations were constructed according to the GRADE criteria based upon the available supporting literature. Transcranial Doppler ultrasonography (TCD) and transcranial color-coded duplex sonography (TCCS) are predictive of angiographic vasospasm and delayed ischemic neurological deficits after aneurysmal subarachnoid hemorrhage. TCD and TCCS may be beneficial in identifying vasospasm after traumatic brain injury. TCD and TCCS have shortcomings in identifying some secondary ischemic risks. Implantable thermal diffusion flowmetry (TDF) probes may provide real-time continuous quantitative assessment of ischemic risks. Data are lacking regarding ischemic thresholds for TDF or their correlation with ischemic injury and clinical outcomes.TCD and TCCS can be used to monitor CBF in the neurocritical care unit. Better and more developed methods of continuous CBF monitoring are needed to limit secondary ischemic injury in the neurocritical care unit.

Published
2014

32. Intracranial Pressure Monitoring: Fundamental Considerations and Rationale for Monitoring

Author

Chesnut, R, Videtta, W, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Armonda, R, Badjatia, N, Boesel, J, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Chesnut R., Videtta W., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Armonda R., Badjatia N., Boesel J., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Chesnut, R, Videtta, W, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Armonda, R, Badjatia, N, Boesel, J, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Chesnut R., Videtta W., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Armonda R., Badjatia N., Boesel J., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Traumatic brain injury (TBI) is a major cause of death and disability worldwide. In large part critical care for TBI is focused on the identification and management of secondary brain injury. This requires effective neuromonitoring that traditionally has centered on intracranial pressure (ICP). The purpose of this paper is to review the fundamental literature relative to the clinical application of ICP monitoring in TBI critical care and to provide recommendations on how the technique maybe applied to help patient management and enhance outcome. A PubMed search between 1980 and September 2013 identified 2,253 articles; 244 of which were reviewed in detail to prepare this report and the evidentiary tables. Several important concepts emerge from this review. ICP monitoring is safe and is best performed using a parenchymal monitor or ventricular catheter. While the indications for ICP monitoring are well established, there remains great variability in its use. Increased ICP, particularly the pattern of the increase and ICP refractory to treatment is associated with increased mortality. Class I evidence is lacking on how monitoring and management of ICP influences outcome. However, a large body of observational data suggests that ICP management has the potential to influence outcome, particularly when care is targeted and individualized and supplemented with data from other monitors including the clinical examination and imaging.

Published
2014

33. Monitoring of Cerebral Autoregulation

Author

Czosnyka, M, Miller, C, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Czosnyka M., Miller C., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Czosnyka, M, Miller, C, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Czosnyka M., Miller C., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Pressure autoregulation is an important hemodynamic mechanism that protects the brain against inappropriate fluctuations in cerebral blood flow in the face of changing cerebral perfusion pressure (CPP). Static autoregulation represents how far cerebrovascular resistance changes when CPP varies, and dynamic autoregulation represents how fast these changes happen. Both have been monitored in the setting of neurocritical care to aid prognostication and contribute to individualizing CPP targets in patients. Failure of autoregulation is associated with a worse outcome in various acute neurological diseases. Several studies have used transcranial Doppler ultrasound, intracranial pressure (ICP with vascular reactivity as surrogate measure of autoregulation), and near-infrared spectroscopy to continuously monitor the impact of spontaneous fluctuations in CPP on cerebrovascular physiology and to calculate derived variables of autoregulatory efficiency. Many patients who undergo such monitoring demonstrate a range of CPP in which autoregulatory efficiency is optimal. Management of patients at or near this optimal level of CPP is associated with better outcomes in traumatic brain injury. Many of these studies have utilized the concept of the pressure reactivity index, a correlation coefficient between ICP and mean arterial pressure. While further studies are needed, these data suggest that monitoring of autoregulation could aid prognostication and may help identify optimal CPP levels in individual patients.

Published
2014

34. The International Multi-disciplinary Consensus Conference on Multimodality Monitoring: Future Directions and Emerging Technologies

Author

Vespa, P, Menon, D, Le Roux, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Vespa P., Menon D., Le Roux P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Vespa, P, Menon, D, Le Roux, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Vespa P., Menon D., Le Roux P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

Neuromonitoring has evolved rapidly in recent years and there now are many new monitors that have revealed a great deal about the ongoing pathophysiology of brain injury and coma. Further evolution will include the consolidation of multi-modality monitoring (MMM), the development of next-generation informatics tools to identify complex physiologic events and decision support tools to permit targeted individualized care. In this review, we examine future directions and emerging technologies in neuromonitoring including: (1) device development, (2) what is the current limitation(s) of MMM in its present format(s), (3) what would improve the ability of MMM to enhance neurocritical care, and (4) how do we develop evidence for use of MMM?

Published
2014

35. Intracranial Pressure and Cerebral Perfusion Pressure Monitoring in Non-TBI Patients: Special Considerations

Author

Helbok, R, Olson, D, Le Roux, P, Vespa, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Helbok R., Olson D. W. M., Le Roux P. D., Vespa P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Helbok, R, Olson, D, Le Roux, P, Vespa, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Helbok R., Olson D. W. M., Le Roux P. D., Vespa P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

The effect of intracranial pressure (ICP) and the role of ICP monitoring are best studied in traumatic brain injury (TBI). However, a variety of acute neurologic illnesses e.g., subarachnoid hemorrhage, intracerebral hemorrhage, ischemic stroke, meningitis/encephalitis, and select metabolic disorders, e.g., liver failure and malignant, brain tumors can affect ICP. The purpose of this paper is to review the literature about ICP monitoring in conditions other than TBI and to provide recommendations how the technique may be used in patient management. A PubMed search between 1980 and September 2013 identified 989 articles; 225 of which were reviewed in detail. The technique used to monitor ICP in non-TBI conditions is similar to that used in TBI; however, indications for ICP monitoring often are intertwined with the presence of obstructive hydrocephalus and hence the use of ventricular catheters is more frequent. Increased ICP can adversely affect outcome, particularly when it fails to respond to treatment. However, patients with elevated ICP can still have favorable outcomes. Although the influence of ICP-based care on outcome in non-TBI conditions appears less robust than in TBI, monitoring ICP and cerebral perfusion pressure can play a role in guiding therapy in select patients.

Published
2014

36. Electrophysiologic Monitoring in Acute Brain Injury

Author

Claassen, J, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Claassen J., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Claassen, J, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, Claassen J., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., and Taccone F.

Abstract

To determine the optimal use and indications of electroencephalography (EEG) in critical care management of acute brain injury (ABI). An electronic literature search was conducted for articles in English describing electrophysiological monitoring in ABI from January 1990 to August 2013. A total of 165 studies were included. EEG is a useful monitor for seizure and ischemia detection. There is a well-described role for EEG in convulsive status epilepticus and cardiac arrest (CA). Data suggest EEG should be considered in all patients with ABI and unexplained and persistent altered consciousness and in comatose intensive care unit (ICU) patients without an acute primary brain condition who have an unexplained impairment of mental status. There remain uncertainties about certain technical details, e.g., the minimum duration of EEG studies, the montage, and electrodes. Data obtained from both EEG and EP studies may help estimate prognosis in ABI patients, particularly following CA and traumatic brain injury. Data supporting these recommendations is sparse, and high quality studies are needed. EEG is used to monitor and detect seizures and ischemia in ICU patients and indications for EEG are clear for certain disease states, however, uncertainty remains on other applications.

Published
2014

37. Excitonic transitions in β-FeSi[sub 2] epitaxial films and single crystals.

Author

Birdwell, A.G., Shaffner, T.J., Chandler-Horowitz, D., Buh, G.H., Rebien, M., Henrion, W., Stauß, P., Behr, G., Malikova, L., Pollak, F.H., Littler, C.L., Glosser, R., and Collins, S.

Subjects
REFLECTANCE, EPITAXY, THIN films, CRYSTALS, MATERIALS at low temperatures, EXCITON theory
Abstract

Photoreflectance spectra were obtained from an epitaxial film and a bulk single crystal of β-FeSi[sub 2] at low temperatures (T<=180 K). A model based on the results of low-temperature absorption [M. Rebien et al., Appl. Phys. Lett. 74, 970 (1999)] was used to describe the main features of the spectra. In agreement with the absorption results, transitions corresponding to the ground state and first excited state of the free exciton were observed in both the epitaxial film and single crystal. However, additional subband gap features are revealed in the photoreflectance spectra of the thin film. It is suggested that these may be related to impurity transitions or an impurity transition plus a bound exciton resonance. From the analysis of the spectra taken on the thin film, over a temperature range of 12–180 K, we extract a free exciton binding energy of (0.009±0.002) eV and a direct energy gap at T=0 K of (0.934±0.002) eV. © 2004 American Institute of Physics. [ABSTRACT FROM AUTHOR]

Published
2004
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41. Electrophysiologic monitoring in acute brain injury

Author

Claassen J., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Claassen, J, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, and Taccone, F

Subjects
medicine.medical_specialty, Neurology, Critical Care, Traumatic brain injury, Ischemia, Electroencephalography, Critical Care and Intensive Care Medicine, EEG-fMRI, law.invention, Brain Ischemia, law, Seizures, medicine, Humans, Evoked potential, medicine.diagnostic_test, business.industry, Patient Selection, medicine.disease, Intensive care unit, Heart Arrest, Bispectral index, Electroencephalography, Evoked potential, Ischemia, Prognosis, Quantitative EEG, Seizure, Bispectral index, Anesthesia, Brain Injuries, Emergency medicine, Neurology (clinical), business
Abstract

To determine the optimal use and indications of electroencephalography (EEG) in critical care management of acute brain injury (ABI). An electronic literature search was conducted for articles in English describing electrophysiological monitoring in ABI from January 1990 to August 2013. A total of 165 studies were included. EEG is a useful monitor for seizure and ischemia detection. There is a well-described role for EEG in convulsive status epilepticus and cardiac arrest (CA). Data suggest EEG should be considered in all patients with ABI and unexplained and persistent altered consciousness and in comatose intensive care unit (ICU) patients without an acute primary brain condition who have an unexplained impairment of mental status. There remain uncertainties about certain technical details, e.g., the minimum duration of EEG studies, the montage, and electrodes. Data obtained from both EEG and EP studies may help estimate prognosis in ABI patients, particularly following CA and traumatic brain injury. Data supporting these recommendations is sparse, and high quality studies are needed. EEG is used to monitor and detect seizures and ischemia in ICU patients and indications for EEG are clear for certain disease states, however, uncertainty remains on other applications.

Published
2014

42. Monitoring of brain and systemic oxygenation in neurocritical care patients

Author

Oddo M., Bosel J., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Oddo, M, Bosel, J, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, Taccone, F, and Participants in the International Multidisciplinary Consensus Conference on Multimodality Monitoring

Subjects
medicine.medical_specialty, Neurology, Critical Care, Intracranial Pressure, business.industry, Traumatic brain injury, Neurointensive care, Reproducibility of Results, Brain Hypoxia, Oxygenation, Critical Care and Intensive Care Medicine, medicine.disease, Prognosis, Neurophysiological Monitoring, Brain oxygen, Carbon dioxide, Jugular oxygen saturation, Near-infrared spectroscopy, Neurocritical care, Systemic oxygenation, Oxygen monitoring, Intensive care, Brain Injuries, Medicine, Humans, Neurology (clinical), Oximetry, Cerebral perfusion pressure, business, Intensive care medicine
Abstract

Maintenance of adequate oxygenation is a mainstay of intensive care, however, recommendations on the safety, accuracy, and the potential clinical utility of invasive and non-invasive tools to monitor brain and systemic oxygenation in neurocritical care are lacking. A literature search was conducted for English language articles describing bedside brain and systemic oxygen monitoring in neurocritical care patients from 1980 to August 2013. Imaging techniques e.g., PET are not considered. A total of 281 studies were included, the majority described patients with traumatic brain injury (TBI). All tools for oxygen monitoring are safe. Parenchymal brain oxygen (PbtO2) monitoring is accurate to detect brain hypoxia, and it is recommended to titrate individual targets of cerebral perfusion pressure (CPP), ventilator parameters (PaCO2, PaO2), and transfusion, and to manage intracranial hypertension, in combination with ICP monitoring. SjvO2 is less accurate than PbtO2. Given limited data, NIRS is not recommended at present for adult patients who require neurocritical care. Systemic monitoring of oxygen (PaO2, SaO2, SpO2) and CO2 (PaCO2, end-tidal CO2) is recommended in patients who require neurocritical care.

Published
2014

43. Intracranial pressure monitoring: fundamental considerations and rationale for monitoring

Author

Chesnut R., Videtta W., Vespa P., Le Roux P., Menon D. K., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Armonda R., Badjatia N., Boesel J., Chou S., Claassen J., Czosnyka M., De Georgia M., Figaji A., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Puppo C., Riker R., Robertson C., Schmidt J. M., Taccone F., Chesnut, R, Videtta, W, Vespa, P, Le Roux, P, Menon, D, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Armonda, R, Badjatia, N, Boesel, J, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Figaji, A, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Puppo, C, Riker, R, Robertson, C, Schmidt, J, and Taccone, F

Subjects
medicine.medical_specialty, Neurology, Critical Care, Intracranial Pressure, Traumatic brain injury, Physical examination, Critical Care and Intensive Care Medicine, medicine, Humans, Brain injury, Cerebral perfusion pressure, Coma, Intracranial pressure, Multimodality monitoring, Cerebral perfusion pressure, Intensive care medicine, Neurophysiological Monitoring, Intracranial pressure, integumentary system, medicine.diagnostic_test, business.industry, musculoskeletal, neural, and ocular physiology, Patient Selection, medicine.disease, Prognosis, nervous system diseases, Brain Injuries, Intracranial pressure monitoring, Observational study, Neurology (clinical), business
Abstract

Traumatic brain injury (TBI) is a major cause of death and disability worldwide. In large part critical care for TBI is focused on the identification and management of secondary brain injury. This requires effective neuromonitoring that traditionally has centered on intracranial pressure (ICP). The purpose of this paper is to review the fundamental literature relative to the clinical application of ICP monitoring in TBI critical care and to provide recommendations on how the technique maybe applied to help patient management and enhance outcome. A PubMed search between 1980 and September 2013 identified 2,253 articles; 244 of which were reviewed in detail to prepare this report and the evidentiary tables. Several important concepts emerge from this review. ICP monitoring is safe and is best performed using a parenchymal monitor or ventricular catheter. While the indications for ICP monitoring are well established, there remains great variability in its use. Increased ICP, particularly the pattern of the increase and ICP refractory to treatment is associated with increased mortality. Class I evidence is lacking on how monitoring and management of ICP influences outcome. However, a large body of observational data suggests that ICP management has the potential to influence outcome, particularly when care is targeted and individualized and supplemented with data from other monitors including the clinical examination and imaging.

Published
2014

44. Multimodality monitoring consensus statement: monitoring in emerging economies

Author

Figaji A., Puppo C., Le Roux P., Menon D. K., Vespa P., Citerio G., Bader M. K., Brophy G. M., Diringer M. N., Stocchetti N., Videtta W., Armonda R., Badjatia N., Boesel J., Chesnut R., Chou S., Claassen J., Czosnyka M., De Georgia M., Fugate J., Helbok R., Horowitz D., Hutchinson P., Kumar M., McNett M., Miller C., Naidech A., Oddo M., Olson D., O'Phelan K., Provencio J., Riker R., Robertson C., Schmidt J. M., Taccone F., Figaji, A, Puppo, C, Le Roux, P, Menon, D, Vespa, P, Citerio, G, Bader, M, Brophy, G, Diringer, M, Stocchetti, N, Videtta, W, Armonda, R, Badjatia, N, Boesel, J, Chesnut, R, Chou, S, Claassen, J, Czosnyka, M, De Georgia, M, Fugate, J, Helbok, R, Horowitz, D, Hutchinson, P, Kumar, M, Mcnett, M, Miller, C, Naidech, A, Oddo, M, Olson, D, O'Phelan, K, Provencio, J, Riker, R, Robertson, C, Schmidt, J, and Taccone, F

Subjects
medicine.medical_specialty, Consensus, Critical Care, media_common.quotation_subject, Developing country, Context (language use), Critical Care and Intensive Care Medicine, Multimodality, Resource (project management), Clinical Protocols, Health care, medicine, Developing countries, Low- and middle-income countries, Multimodality monitoring, Neurocritical care, Traumatic brain injury, Humans, Quality (business), Intensive care medicine, Emerging markets, Developing Countries, media_common, business.industry, Patient Selection, Neurointensive care, medicine.disease, Neurophysiological Monitoring, Brain Injuries, Neurology (clinical), Medical emergency, business
Abstract

The burden of disease and so the need for care is often greater at hospitals in emerging economies. This is compounded by frequent restrictions in the delivery of good quality clinical care due to resource limitations. However, there is substantial heterogeneity in this economically defined group, such that advanced brain monitoring is routinely practiced at certain centers that have an interest in neurocritical care. It also must be recognized that significant heterogeneity in the delivery of neurocritical care exists even within individual high-income countries (HICs), determined by costs and level of interest. Direct comparisons of data between HICs and the group of low- and middle-income countries (LAMICs) are made difficult by differences in patient demographics, selection for ICU admission, therapies administered, and outcome assessment. Evidence suggests that potential benefits of multimodality monitoring depend on an appropriate environment and clinical expertise. There is no evidence to suggest that patients in LAMICs where such resources exist should be treated any differently to patients from HICs. The potential for outcome benefits in LAMICs is arguably greater in absolute terms because of the large burden of disease; however, the relative cost/benefit ratio of such monitoring in this setting must be viewed in context of the overall priorities in delivering health care at individual institutions.

Published
2014

45. Validated and longitudinally stable asthma phenotypes based on cluster analysis of the ADEPT study

Author

Loza, M. J., Djukanovic, R., Chung, K. F., Horowitz, D., Ma, K., Branigan, P., Barnathan, E. S., Susulic, V. S., Silkoff, P. E., Sterk, P. J., Baribaud, F., Strambu, I., Laviolette, M., Singh, D., Fitzgerald, J. M., Lam, S., Kelsen, S., Eich, A., Ludwig-Sengpiel, A., Hupp, G. C., Backer, V., Porsbjerg, C., Girodet, P. O., Berger, P., Leigh, R., Kline, J., Dransfield, M., Calhoun, W., Hussaini, A., Khatri, S., Chanez, P., Ian, A., Fleming Louis, J., David, G., Sile, H., Scott, K., Sally, M., Andrea, M., Stelios, P., Christos, R., Kirsty, R., Kai, S., Coen, W., Xian, Y., Nora, A., Ariane, W., Kees, v. D., Marianne, v. d. P., Wim, v. A., Sterk Peter, J., Barbara, S., Lara, R., Rene, L., Paul, B., Elisabeth, B., Koos, Z., Tamara, D., Simone, H., Annemiek, D., Pieter-Paul, H., Saeeda, L. -L., Hassan, A., Betrand, D. M., Diane, L., Antonios, A., Kjell, A., Charles, A., Philipp, B., Per, B., David, B., Sven-Erik, D., Ingrid, D., Cristina, G., James Anna, J., Roelinde, M., Shama, N., Anne, P., Stacey, R., Wheelock Craig, E., Hector, G., Maciej, K., Johan, K., Marcus, S., Bansal Aruna, T., Frederic, B., Navin, R., An, B., Inge, D. L., Martine, R., Behndig Annelie, F., Thomas, S., Jorge, B., De Jorge, A., Ann, B., Gunilla, H., Nordlund, Bjorn, Jon, K., Wilhelm, Z., Alix, B., Jorgen, O., van Marleen, G., de Maria, G. V., Lars, L., Ulf, N., Jeannette, B., Boedigheimer Michel, J., Richard, H., Xugang, H., Wen, Y., Hans, B., Klaus, B., Jonathan, T., Nadja, V., Grazyna, B., Jacek, M., Joost, B., Ben, N., Anthony, P., Doroteya, S., Armin, B., Jens, H., Norbert, K., Dominic, B., Schofield James, P. R., Skipp Paul, J., Leon, C., Bob, T., Caruso, Massimo, Rocha Joao Pedro, C. P., Julaiha, G., Andrew, M. -G., Adesimbo, S., Amphun, C., Romanas, C., Caroline, M., Pascal, C., Courtney, C., Jessica, E., Val, H., Kennington Erika, J., Leanne, M., Malayka, R. -A., Leanne, R., Jessica, S., Jenny, V., Samantha, W., Breda, F., Amanda, R., David, S., Chris, C., David, M., John, R., Sousa Ana, R., Julie, C., D'Amico, Arnaldo, Giorgio, P., Marco, S., Barbro, D., Ann-Sofie, L., Pim, B., Patrick, D., Kamran, T., Clair, B., Kerry, G., Aleksandra, D., Neil, F., Trevor, G., Scott, W., Rosalia, E., Davide, C., Magnus, E., Veit, E., Damijan, E., Klaus, F., Katja, N., Corinna, S., Frans, W., Kathrin, R., Kluglich, Matthias, Fowler Stephen, J., Murray Clare, S., Jorgen, V., Ashley, W., Urs, F., Martina, G., Gabriella, G., Ildiko, H., Marton, S., Lilla, T., Zsoka, W., Thomas, G., Neil, G., Yi-ke, G., John, H., Sian, W., Elisabeth, H., Nikos, L., Karin, S., Lorraine, H., Lisa, M., Jane, M., Sandy, P., Emma, R., Caroline, S., Tim, H., Uruj, H., Cecile, H., Matthews John, G., Peter, H., Graham, R., Juliette, K., Dyson, K., Hugo, K., Anton, V., Richard, K., Alan, K., Shaw Dominick, E., Maxim, K., Linn, K., Bart, L., Sarah, M., Pippa, P., Alexander, M., Maria, M., Peter, N., Montse, M., Philip, M., Paolo, M., Nadia, M., Giuseppe, S., Salvatore, V., Antonio, P., Laurie, P., Susanna, P., Ioannis, P., Anthony, R., Wolfgang, S., Kristiane, W., Florian, S., Smith Katherine, M., Paivi, S., John-Olof, T., von Christophe, G., Jonathan, W., Wilson Susan, J., Elizabeth, Y., AII - Amsterdam institute for Infection and Immunity, Pulmonology, Graduate School, Experimental Immunology, APH - Amsterdam Public Health, Epidemiology and Data Science, Medical Research Council (MRC), Commission of the European Communities, and National Institute for Health Research

Subjects
Oncology, Time Factors, AIRWAY INFLAMMATION, Respiratory System, Vital Capacity, Disease, Severity of Illness Index, 0302 clinical medicine, RESEARCH-PROGRAM, Forced Expiratory Volume, Observational study, Eosinophilic, Medicine and Health Sciences, 030212 general & internal medicine, Longitudinal Studies, Lung, SEVERE EOSINOPHILIC ASTHMA, INDUCED SPUTUM, Interleukin-13, Biological markers, Adept, Prognosis, ADEPT (Airways Disease Endotyping for Personalized Therapeutics) and U-BIOPRED (Unbiased Biomarkers for the Prediction of Respiratory Disease Outcome Consortium) investigators, Phenotype, 3. Good health, Cohort, Biomarker (medicine), Inflammation Mediators, Life Sciences & Biomedicine, medicine.drug, Pulmonary and Respiratory Medicine, medicine.medical_specialty, Genotype, QUESTIONNAIRE, 610 Medicine & health, 1102 Cardiovascular Medicine And Haematology, 03 medical and health sciences, Th2 Cells, Cluster analysis, Fuzzy Logic, Predictive Value of Tests, Internal medicine, medicine, Humans, Asthma, Science & Technology, IDENTIFICATION, business.industry, MEPOLIZUMAB, Research, Biology and Life Sciences, Reproducibility of Results, 1103 Clinical Sciences, medicine.disease, Cross-Sectional Studies, 030228 respiratory system, Gene Expression Regulation, Immunology, Interleukin-4, business, Mepolizumab
Abstract

Background Asthma is a disease of varying severity and differing disease mechanisms. To date, studies aimed at stratifying asthma into clinically useful phenotypes have produced a number of phenotypes that have yet to be assessed for stability and to be validated in independent cohorts. The aim of this study was to define and validate, for the first time ever, clinically driven asthma phenotypes using two independent, severe asthma cohorts: ADEPT and U-BIOPRED. Methods Fuzzy partition-around-medoid clustering was performed on pre-specified data from the ADEPT participants (n = 156) and independently on data from a subset of U-BIOPRED asthma participants (n = 82) for whom the same variables were available. Models for cluster classification probabilities were derived and applied to the 12-month longitudinal ADEPT data and to a larger subset of the U-BIOPRED asthma dataset (n = 397). High and low type-2 inflammation phenotypes were defined as high or low Th2 activity, indicated by endobronchial biopsies gene expression changes downstream of IL-4 or IL-13. Results Four phenotypes were identified in the ADEPT (training) cohort, with distinct clinical and biomarker profiles. Phenotype 1 was “mild, good lung function, early onset”, with a low-inflammatory, predominantly Type-2, phenotype. Phenotype 2 had a “moderate, hyper-responsive, eosinophilic” phenotype, with moderate asthma control, mild airflow obstruction and predominant Type-2 inflammation. Phenotype 3 had a “mixed severity, predominantly fixed obstructive, non-eosinophilic and neutrophilic” phenotype, with moderate asthma control and low Type-2 inflammation. Phenotype 4 had a “severe uncontrolled, severe reversible obstruction, mixed granulocytic” phenotype, with moderate Type-2 inflammation. These phenotypes had good longitudinal stability in the ADEPT cohort. They were reproduced and demonstrated high classification probability in two subsets of the U-BIOPRED asthma cohort. Conclusions Focusing on the biology of the four clinical independently-validated easy-to-assess ADEPT asthma phenotypes will help understanding the unmet need and will aid in developing tailored therapies. Trial registration NCT01274507 (ADEPT), registered October 28, 2010 and NCT01982162 (U-BIOPRED), registered October 30, 2013. Electronic supplementary material The online version of this article (doi:10.1186/s12931-016-0482-9) contains supplementary material, which is available to authorized users.

Published
2016
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