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1. Variation in Structure and Process of Care in Traumatic Brain Injury: Provider Profiles of European Neurotrauma Centers Participating in the CENTER-TBI Study

Author: Cnossen M. C., Polinder S., Lingsma H. F., Maas A. I. R., Menon D., Steyerberg E. W., Adams H., Alessandro M., Allanson J., Amrein K., Andaluz N., Andelic N., Andrea N., Andreassen L., Anke A., Antoni A., Ardon H., Audibert G., Auslands K., Azouvi P., Baciu C., Bacon A., Badenes R., Baglin T., Bartels R., Barzo P., Bauerfeind U., Beer R., Belda F. J., Bellander B. -M., Belli A., Bellier R., Benali H., Benard T., Berardino M., Beretta L., Beynon C., Bilotta F., Binder H., Biqiri E., Blaabjerg M., Borgen L. S., Bouzat P., Bragge P., Brazinova A., Brehar F., Brorsson C., Buki A., Bullinger M., Buckova V., Calappi E., Cameron P., Carbayo L. G., Carise E., Carpenter C., Castano-Leon A. M., Causin F., Chevallard G., Chieregato A., Citerio G., Coburn M. C., Coles J., Cooper J. D., Correia M., Covic A., Curry N., Czeiter E., Czosnyka M., Dahyot-Fizelier C., Damas F., Damas P., Dawes H., De Keyser V., Della Corte F., Depreitere B., Ding S., Dippel D., Dizdarevic K., Duliere G. -L., Dzeko A., Eapen G., Engemann H., Ercole A., Esser P., Ezer E., Fabricius M., Feigin V. L., Feng J., Foks K., Fossi F., Francony G., Frantzen J., Freo U., Frisvold S., Furmanov A., Gagliardo P., Galanaud D., Gao G., Geleijns K., Ghuysen A., Giraud B., Glocker B., Gomez P. A., Grossi F., Gruen R. L., Gupta D., Haagsma J. A., Hadzic E., Haitsma I., Hartings J. A., Helbok R., Helseth E., Hertle D., Hill S., Hoedemaekers A., Hoefer S., Hutchinson P. J., Haberg A. K., Jacobs B., Janciak I., Janssens K., Jiang J., Jones K., Kalala J. -P., Kamnitsas K., Karan M., Karau J., Katila A., Kaukonen M., Keeling D., Kerforne T., Ketharanathan N., Kettunen J., Kivisaari R., Kolias A. G., Kolumban B., Kompanje E., Kondziella D., Koskinen L. -O., Kovacs N., Kalovits F., Lagares A., Lanyon L., Laureys S., Lauritzen M., Lecky F., Ledig C., Lefering R., Legrand V., Lei J., Levi L., Lightfoot R., Lingsma H., Loeckx D., Lozano A., Luddington R., Luijten-Arts C., MacDonald S., MacFayden C., Maegele M., Majdan M., Major S., Manara A., Manhes P., Manley G., Martin D., Martino C., Maruenda A., Marechal H., Mastelova D., Mattern J., McMahon C., Melegh B., Menovsky T., Morganti-Kossmann C., Mulazzi D., Mutschler M., Muhlan H., Negru A., Nelson D., Neugebauer E., Newcombe V., Noirhomme Q., Nyiradi J., Oddo M., Oldenbeuving A., Oresic M., Ortolano F., Palotie A., Parizel P. M., Patruno A., Payen J. -F., Perera N., Perlbarg V., Persona P., Peul W., Pichon N., Piilgaard H., Piippo A., Pili F. S., Pirinen M., Ples H., Pomposo I., Psota M., Pullens P., Puybasset L., Ragauskas A., Raj R., Rambadagalla M., Rehorcikova V., Rhodes J., Richardson S., Ripatti S., Rocka S., Rodier N., Roe C., Roise O., Roks G., Romegoux P., Rosand J., Rosenfeld J., Rosenlund C., Rosenthal G., Rossaint R., Rossi S., Rostalski T., Rueckert D. L., Ruiz De Arcaute F., Rusnak M., Sacchi M., Sahakian B., Sahuquillo J., Sakowitz O., Sala F., Sanchez-Pena P., Sanchez-Porras R., Sandor J., Santos E., Sasse N., Sasu L., Savo D., Schipper I., Schlosser B., Schmidt S., Schneider A., Schoechl H., Schoonman G., Schou R. F., Schwendenwein E., Scholl M., Sir O., Skandsen T., Smakman L., Smeets D., Smielewski P., Sorinola A., Stamatakis E. L., Stanworth S., Stegemann K., Steinbuchel N., Stevens R., Stewart W., Stocchetti N., Sundstrom N., Synnot A., Szabo J., Soderberg J., Taccone F. S., Tamas V., Tanskanen P., Tascu A., Taylor M. S., Te Ao B., Tenovuo O., Teodorani G., Theadom A., Thomas M., Tibboel D., Tolias C., Tshibanda J. -F. L., Tudora C. M., Vajkoczy P., Valeinis E., Van Hecke W., Van Praag D., Van Roost D., Van Vlierberghe E., Vande Vyvere T., Vanhaudenhuyse A., Vargiolu A., Vega E., Verheyden J., Vespa P. M., Vik A., Vilcinis R., Vizzino G., Vleggeert-Lankamp C., Volovici V., Vulekovic P., Vamos Z., Wade D., Wang K. K. W., Wang L., Wildschut E., Williams G., Willumsen L., Wilson A., Wilson L., Winkler M. K. L., Ylen P., Younsi A., Zaaroor M., Zhang Z., Zheng Z., Zumbo F., De Lange S., De Ruiter G. C. W., Den Boogert H., Van Dijck J., Van Essen T. A., Van Heugten C., Van Der Jagt M., Van Der Naalt J., CENTER-Tbi Invest Participants, Cnossen, M, Polinder, S, Lingsma, H, Maas, A, Menon, D, Steyerberg, E, Adams, H, Alessandro, M, Allanson, J, Amrein, K, Andaluz, N, Andelic, N, Andrea, N, Andreassen, L, Anke, A, Antoni, A, Ardon, H, Audibert, G, Auslands, K, Azouvi, P, Baciu, C, Bacon, A, Badenes, R, Baglin, T, Bartels, R, Barzo, P, Bauerfeind, U, Beer, R, Belda, F, Bellander, B, Belli, A, Bellier, R, Benali, H, Benard, T, Berardino, M, Beretta, L, Beynon, C, Bilotta, F, Binder, H, Biqiri, E, Blaabjerg, M, Borgen, L, Bouzat, P, Bragge, P, Brazinova, A, Brehar, F, Brorsson, C, Buki, A, Bullinger, M, Buckova, V, Calappi, E, Cameron, P, Carbayo, L, Carise, E, Carpenter, C, Castano-Leon, A, Causin, F, Chevallard, G, Chieregato, A, Citerio, G, Coburn, M, Coles, J, Cooper, J, Correia, M, Covic, A, Curry, N, Czeiter, E, Czosnyka, M, Dahyot-Fizelier, C, Damas, F, Damas, P, Dawes, H, De Keyser, V, Della Corte, F, Depreitere, B, Ding, S, Dippel, D, Dizdarevic, K, Duliere, G, Dzeko, A, Eapen, G, Engemann, H, Ercole, A, Esser, P, Ezer, E, Fabricius, M, Feigin, V, Feng, J, Foks, K, Fossi, F, Francony, G, Frantzen, J, Freo, U, Frisvold, S, Furmanov, A, Gagliardo, P, Galanaud, D, Gao, G, Geleijns, K, Ghuysen, A, Giraud, B, Glocker, B, Gomez, P, Grossi, F, Gruen, R, Gupta, D, Haagsma, J, Hadzic, E, Haitsma, I, Hartings, J, Helbok, R, Helseth, E, Hertle, D, Hill, S, Hoedemaekers, A, Hoefer, S, Hutchinson, P, Haberg, A, Jacobs, B, Janciak, I, Janssens, K, Jiang, J, Jones, K, Kalala, J, Kamnitsas, K, Karan, M, Karau, J, Katila, A, Kaukonen, M, Keeling, D, Kerforne, T, Ketharanathan, N, Kettunen, J, Kivisaari, R, Kolias, A, Kolumban, B, Kompanje, E, Kondziella, D, Koskinen, L, Kovacs, N, Kalovits, F, Lagares, A, Lanyon, L, Laureys, S, Lauritzen, M, Lecky, F, Ledig, C, Lefering, R, Legrand, V, Lei, J, Levi, L, Lightfoot, R, Loeckx, D, Lozano, A, Luddington, R, Luijten-Arts, C, Macdonald, S, Macfayden, C, Maegele, M, Majdan, M, Major, S, Manara, A, Manhes, P, Manley, G, Martin, D, Martino, C, Maruenda, A, Marechal, H, Mastelova, D, Mattern, J, Mcmahon, C, Melegh, B, Menovsky, T, Morganti-Kossmann, C, Mulazzi, D, Mutschler, M, Muhlan, H, Negru, A, Nelson, D, Neugebauer, E, Newcombe, V, Noirhomme, Q, Nyiradi, J, Oddo, M, Oldenbeuving, A, Oresic, M, Ortolano, F, Palotie, A, Parizel, P, Patruno, A, Payen, J, Perera, N, Perlbarg, V, Persona, P, Peul, W, Pichon, N, Piilgaard, H, Piippo, A, Pili, F, Pirinen, M, Ples, H, Pomposo, I, Psota, M, Pullens, P, Puybasset, L, Ragauskas, A, Raj, R, Rambadagalla, M, Rehorcikova, V, Rhodes, J, Richardson, S, Ripatti, S, Rocka, S, Rodier, N, Roe, C, Roise, O, Roks, G, Romegoux, P, Rosand, J, Rosenfeld, J, Rosenlund, C, Rosenthal, G, Rossaint, R, Rossi, S, Rostalski, T, Rueckert, D, Ruiz De Arcaute, F, Rusnak, M, Sacchi, M, Sahakian, B, Sahuquillo, J, Sakowitz, O, Sala, F, Sanchez-Pena, P, Sanchez-Porras, R, Sandor, J, Santos, E, Sasse, N, Sasu, L, Savo, D, Schipper, I, Schlosser, B, Schmidt, S, Schneider, A, Schoechl, H, Schoonman, G, Schou, R, Schwendenwein, E, Scholl, M, Sir, O, Skandsen, T, Smakman, L, Smeets, D, Smielewski, P, Sorinola, A, Stamatakis, E, Stanworth, S, Stegemann, K, Steinbuchel, N, Stevens, R, Stewart, W, Stocchetti, N, Sundstrom, N, Synnot, A, Szabo, J, Soderberg, J, Taccone, F, Tamas, V, Tanskanen, P, Tascu, A, Taylor, M, Te Ao, B, Tenovuo, O, Teodorani, G, Theadom, A, Thomas, M, Tibboel, D, Tolias, C, Tshibanda, J, Tudora, C, Vajkoczy, P, Valeinis, E, Van Hecke, W, Van Praag, D, Van Roost, D, Van Vlierberghe, E, Vande Vyvere, T, Vanhaudenhuyse, A, Vargiolu, A, Vega, E, Verheyden, J, Vespa, P, Vik, A, Vilcinis, R, Vizzino, G, Vleggeert-Lankamp, C, Volovici, V, Vulekovic, P, Vamos, Z, Wade, D, Wang, K, Wang, L, Wildschut, E, Williams, G, Willumsen, L, Wilson, A, Wilson, L, Winkler, M, Ylen, P, Younsi, A, Zaaroor, M, Zhang, Z, Zheng, Z, Zumbo, F, De Lange, S, De Ruiter, G, Den Boogert, H, Van Dijck, J, Van Essen, T, Van Heugten, C, Van Der Jagt, M, Van Der Naalt, J, Cnossen, M. C., Polinder, S., Lingsma, H. F., Maas, A. I. R., Menon, D., Steyerberg, E. W., Adams, H., Alessandro, M., Allanson, J., Amrein, K., Andaluz, N., Andelic, N., Andrea, N., Andreassen, L., Anke, A., Antoni, A., Ardon, H., Audibert, G., Auslands, K., Azouvi, P., Baciu, C., Bacon, A., Badenes, R., Baglin, T., Bartels, R., Barzo, P., Bauerfeind, U., Beer, R., Belda, F. J., Bellander, B. -M., Belli, A., Bellier, R., Benali, H., Benard, T., Berardino, M., Beretta, L., Beynon, C., Bilotta, F., Binder, H., Biqiri, E., Blaabjerg, M., Borgen, L. S., Bouzat, P., Bragge, P., Brazinova, A., Brehar, F., Brorsson, C., Buki, A., Bullinger, M., Buckova, V., Calappi, E., Cameron, P., Carbayo, L. G., Carise, E., Carpenter, C., Castano-Leon, A. M., Causin, F., Chevallard, G., Chieregato, A., Citerio, G., Coburn, M. C., Coles, J., Cooper, J. D., Correia, M., Covic, A., Curry, N., Czeiter, E., Czosnyka, M., Dahyot-Fizelier, C., Damas, F., Damas, P., Dawes, H., De Keyser, V., Della Corte, F., Depreitere, B., Ding, S., Dippel, D., Dizdarevic, K., Duliere, G. -L., Dzeko, A., Eapen, G., Engemann, H., Ercole, A., Esser, P., Ezer, E., Fabricius, M., Feigin, V. L., Feng, J., Foks, K., Fossi, F., Francony, G., Frantzen, J., Freo, U., Frisvold, S., Furmanov, A., Gagliardo, P., Galanaud, D., Gao, G., Geleijns, K., Ghuysen, A., Giraud, B., Glocker, B., Gomez, P. A., Grossi, F., Gruen, R. L., Gupta, D., Haagsma, J. A., Hadzic, E., Haitsma, I., Hartings, J. A., Helbok, R., Helseth, E., Hertle, D., Hill, S., Hoedemaekers, A., Hoefer, S., Hutchinson, P. J., Haberg, A. K., Jacobs, B., Janciak, I., Janssens, K., Jiang, J., Jones, K., Kalala, J. -P., Kamnitsas, K., Karan, M., Karau, J., Katila, A., Kaukonen, M., Keeling, D., Kerforne, T., Ketharanathan, N., Kettunen, J., Kivisaari, R., Kolias, A. G., Kolumban, B., Kompanje, E., Kondziella, D., Koskinen, L. -O., Kovacs, N., Kalovits, F., Lagares, A., Lanyon, L., Laureys, S., Lauritzen, M., Lecky, F., Ledig, C., Lefering, R., Legrand, V., Lei, J., Levi, L., Lightfoot, R., Lingsma, H., Loeckx, D., Lozano, A., Luddington, R., Luijten-Arts, C., Macdonald, S., Macfayden, C., Maegele, M., Majdan, M., Major, S., Manara, A., Manhes, P., Manley, G., Martin, D., Martino, C., Maruenda, A., Marechal, H., Mastelova, D., Mattern, J., Mcmahon, C., Melegh, B., Menovsky, T., Morganti-Kossmann, C., Mulazzi, D., Mutschler, M., Muhlan, H., Negru, A., Nelson, D., Neugebauer, E., Newcombe, V., Noirhomme, Q., Nyiradi, J., Oddo, M., Oldenbeuving, A., Oresic, M., Ortolano, F., Palotie, A., Parizel, P. M., Patruno, A., Payen, J. -F., Perera, N., Perlbarg, V., Persona, P., Peul, W., Pichon, N., Piilgaard, H., Piippo, A., Pili, F. S., Pirinen, M., Ples, H., Pomposo, I., Psota, M., Pullens, P., Puybasset, L., Ragauskas, A., Raj, R., Rambadagalla, M., Rehorcikova, V., Rhodes, J., Richardson, S., Ripatti, S., Rocka, S., Rodier, N., Roe, C., Roise, O., Roks, G., Romegoux, P., Rosand, J., Rosenfeld, J., Rosenlund, C., Rosenthal, G., Rossaint, R., Rossi, S., Rostalski, T., Rueckert, D. L., Ruiz De Arcaute, F., Rusnak, M., Sacchi, M., Sahakian, B., Sahuquillo, J., Sakowitz, O., Sala, F., Sanchez-Pena, P., Sanchez-Porras, R., Sandor, J., Santos, E., Sasse, N., Sasu, L., Savo, D., Schipper, I., Schlosser, B., Schmidt, S., Schneider, A., Schoechl, H., Schoonman, G., Schou, R. F., Schwendenwein, E., Scholl, M., Sir, O., Skandsen, T., Smakman, L., Smeets, D., Smielewski, P., Sorinola, A., Stamatakis, E. L., Stanworth, S., Stegemann, K., Steinbuchel, N., Stevens, R., Stewart, W., Stocchetti, N., Sundstrom, N., Synnot, A., Szabo, J., Soderberg, J., Taccone, F. S., Tamas, V., Tanskanen, P., Tascu, A., Taylor, M. S., Te Ao, B., Tenovuo, O., Teodorani, G., Theadom, A., Thomas, M., Tibboel, D., Tolias, C., Tshibanda, J. -F. L., Tudora, C. M., Vajkoczy, P., Valeinis, E., Van Hecke, W., Van Praag, D., Van Roost, D., Van Vlierberghe, E., Vande Vyvere, T., Vanhaudenhuyse, A., Vargiolu, A., Vega, E., Verheyden, J., Vespa, P. M., Vik, A., Vilcinis, R., Vizzino, G., Vleggeert-Lankamp, C., Volovici, V., Vulekovic, P., Vamos, Z., Wade, D., Wang, K. K. W., Wang, L., Wildschut, E., Williams, G., Willumsen, L., Wilson, A., Wilson, L., Winkler, M. K. L., Ylen, P., Younsi, A., Zaaroor, M., Zhang, Z., Zheng, Z., Zumbo, F., De Lange, S., De Ruiter, G. C. W., Den Boogert, H., Van Dijck, J., Van Essen, T. A., Van Heugten, C., Van Der Jagt, M., Van Der Naalt, J., Commission of the European Communities, Molecular Neuroscience and Ageing Research (MOLAR), Menon, David [0000-0002-3228-9692], Apollo - University of Cambridge Repository, and Public Health
Subjects: Questionnaires, Comparative Effectiveness Research, Critical Care and Emergency Medicine, Medical Doctors, Neurologi, Health Care Providers, CENTER-TBI Investigators and Participants, lcsh:Medicine, Poison control, Occupational safety and health, Diagnostic Radiology, Geographical Locations, 0302 clinical medicine, Trauma Centers, Surveys and Questionnaires, Brain Injuries, Traumatic, Medicine and Health Sciences, Brain Damage, Longitudinal Studies, Prospective Studies, Israel, lcsh:Science, Tomography, Trauma Medicine, Multidisciplinary, Radiology and Imaging, traumatic brain injury, Trauma center, Hospitals, 3. Good health, Europe, Hospitalization, Professions, Intensive Care Units, Neurology, Research Design, Intracranial pressure monitoring, Medical emergency, Engineering sciences. Technology, Research Article, medicine.medical_specialty, Imaging Techniques, Traumatic brain injury, General Science & Technology, Concordance, Comparative effectiveness research, Neuroimaging, Research and Analysis Methods, 03 medical and health sciences, Diagnostic Medicine, Physicians, Injury prevention, MD Multidisciplinary, medicine, Humans, Treatment Guidelines, Survey Research, Health Care Policy, business.industry, lcsh:R, Biology and Life Sciences, 030208 emergency & critical care medicine, Length of Stay, medicine.disease, ta3124, Computed Axial Tomography, Health Care, Health Care Facilities, Family medicine, People and Places, lcsh:Q, Population Groupings, business, 030217 neurology & neurosurgery, Neuroscience
Abstract: © 2016 Cnossen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Introduction: The strength of evidence underpinning care and treatment recommendations in traumatic brain injury (TBI) is low. Comparative effectiveness research (CER) has been proposed as a framework to provide evidence for optimal care for TBI patients. The first step in CER is to map the existing variation. The aim of current study is to quantify variation in general structural and process characteristics among centers participating in the Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study. Methods: We designed a set of 11 provider profiling questionnaires with 321 questions about various aspects of TBI care, chosen based on literature and expert opinion. After pilot testing, questionnaires were disseminated to 71 centers from 20 countries participating in the CENTER-TBI study. Reliability of questionnaires was estimated by calculating a concordance rate among 5% duplicate questions. Results: All 71 centers completed the questionnaires. Median concordance rate among duplicate questions was 0.85. The majority of centers were academic hospitals (n = 65, 92%), designated as a level I trauma center (n = 48, 68%) and situated in an urban location (n = 70, 99%). The availability of facilities for neuro-trauma care varied across centers; e.g. 40 (57%) had a dedicated neuro-intensive care unit (ICU), 36 (51%) had an in-hospital rehabilitation unit and the organization of the ICU was closed in 64% (n = 45) of the centers. In addition, we found wide variation in processes of care, such as the ICU admission policy and intracranial pressure monitoring policy among centers. Conclusion: Even among high-volume, specialized neurotrauma centers there is substantial variation in structures and processes of TBI care. This variation provides an opportunity to study effectiveness of specific aspects of TBI care and to identify best practices with CER approaches.
Published: 2020

2. Variation in structure and process of care in traumatic brain injury: Provider profiles of European Neurotrauma Centers participating in the CENTER-TBI study

Author: Cnossen, M, Polinder, S, Lingsma, H, Maas, A, Menon, D, Steyerberg, E, Adams, H, Alessandro, M, Allanson, J, Amrein, K, Andaluz, N, Andelic, N, Andrea, N, Andreassen, L, Anke, A, Antoni, A, Ardon, H, Audibert, G, Auslands, K, Azouvi, P, Baciu, C, Bacon, A, Badenes, R, Baglin, T, Bartels, R, Barzo, P, Bauerfeind, U, Beer, R, Belda, F, Bellander, B, Belli, A, Bellier, R, Benali, H, Benard, T, Berardino, M, Beretta, L, Beynon, C, Bilotta, F, Binder, H, Biqiri, E, Blaabjerg, M, Borgen, L, Bouzat, P, Bragge, P, Brazinova, A, Brehar, F, Brorsson, C, Buki, A, Bullinger, M, Buckova, V, Calappi, E, Cameron, P, Carbayo, L, Carise, E, Carpenter, C, Castano-Leon, A, Causin, F, Chevallard, G, Chieregato, A, Citerio, G, Coburn, M, Coles, J, Cooper, J, Correia, M, Covic, A, Curry, N, Czeiter, E, Czosnyka, M, Dahyot-Fizelier, C, Damas, F, Damas, P, Dawes, H, De Keyser, V, Della Corte, F, Depreitere, B, Ding, S, Dippel, D, Dizdarevic, K, Duliere, G, Dzeko, A, Eapen, G, Engemann, H, Ercole, A, Esser, P, Ezer, E, Fabricius, M, Feigin, V, Feng, J, Foks, K, Fossi, F, Francony, G, Frantzen, J, Freo, U, Frisvold, S, Furmanov, A, Gagliardo, P, Galanaud, D, Gao, G, Geleijns, K, Ghuysen, A, Giraud, B, Glocker, B, Gomez, P, Grossi, F, Gruen, R, Gupta, D, Haagsma, J, Hadzic, E, Haitsma, I, Hartings, J, Helbok, R, Helseth, E, Hertle, D, Hill, S, Hoedemaekers, A, Hoefer, S, Hutchinson, P, Haberg, A, Jacobs, B, Janciak, I, Janssens, K, Jiang, J, Jones, K, Kalala, J, Kamnitsas, K, Karan, M, Karau, J, Katila, A, Kaukonen, M, Keeling, D, Kerforne, T, Ketharanathan, N, Kettunen, J, Kivisaari, R, Kolias, A, Kolumban, B, Kompanje, E, Kondziella, D, Koskinen, L, Kovacs, N, Kalovits, F, Lagares, A, Lanyon, L, Laureys, S, Lauritzen, M, Lecky, F, Ledig, C, Lefering, R, Legrand, V, Lei, J, Levi, L, Lightfoot, R, Loeckx, D, Lozano, A, Luddington, R, Luijten-Arts, C, Macdonald, S, Macfayden, C, Maegele, M, Majdan, M, Major, S, Manara, A, Manhes, P, Manley, G, Martin, D, Martino, C, Maruenda, A, Marechal, H, Mastelova, D, Mattern, J, Mcmahon, C, Melegh, B, Menovsky, T, Morganti-Kossmann, C, Mulazzi, D, Mutschler, M, Muhlan, H, Negru, A, Nelson, D, Neugebauer, E, Newcombe, V, Noirhomme, Q, Nyiradi, J, Oddo, M, Oldenbeuving, A, Oresic, M, Ortolano, F, Palotie, A, Parizel, P, Patruno, A, Payen, J, Perera, N, Perlbarg, V, Persona, P, Peul, W, Pichon, N, Piilgaard, H, Piippo, A, Pili, F, Pirinen, M, Ples, H, Pomposo, I, Psota, M, Pullens, P, Puybasset, L, Ragauskas, A, Raj, R, Rambadagalla, M, Rehorcikova, V, Rhodes, J, Richardson, S, Ripatti, S, Rocka, S, Rodier, N, Roe, C, Roise, O, Roks, G, Romegoux, P, Rosand, J, Rosenfeld, J, Rosenlund, C, Rosenthal, G, Rossaint, R, Rossi, S, Rostalski, T, Rueckert, D, Ruiz De Arcaute, F, Rusnak, M, Sacchi, M, Sahakian, B, Sahuquillo, J, Sakowitz, O, Sala, F, Sanchez-Pena, P, Sanchez-Porras, R, Sandor, J, Santos, E, Sasse, N, Sasu, L, Savo, D, Schipper, I, Schlosser, B, Schmidt, S, Schneider, A, Schoechl, H, Schoonman, G, Schou, R, Schwendenwein, E, Scholl, M, Sir, O, Skandsen, T, Smakman, L, Smeets, D, Smielewski, P, Sorinola, A, Stamatakis, E, Stanworth, S, Stegemann, K, Steinbuchel, N, Stevens, R, Stewart, W, Stocchetti, N, Sundstrom, N, Synnot, A, Szabo, J, Soderberg, J, Taccone, F, Tamas, V, Tanskanen, P, Tascu, A, Taylor, M, Te Ao, B, Tenovuo, O, Teodorani, G, Theadom, A, Thomas, M, Tibboel, D, Tolias, C, Tshibanda, J, Tudora, C, Vajkoczy, P, Valeinis, E, Van Hecke, W, Van Praag, D, Van Roost, D, Van Vlierberghe, E, Vande Vyvere, T, Vanhaudenhuyse, A, Vargiolu, A, Vega, E, Verheyden, J, Vespa, P, Vik, A, Vilcinis, R, Vizzino, G, Vleggeert-Lankamp, C, Volovici, V, Vulekovic, P, Vamos, Z, Wade, D, Wang, K, Wang, L, Wildschut, E, Williams, G, Willumsen, L, Wilson, A, Wilson, L, Winkler, M, Ylen, P, Younsi, A, Zaaroor, M, Zhang, Z, Zheng, Z, Zumbo, F, De Lange, S, De Ruiter, G, Den Boogert, H, Van Dijck, J, Van Essen, T, Van Heugten, C, Van Der Jagt, M, Van Der Naalt, J, Cnossen M. C., Polinder S., Lingsma H. F., Maas A. I. R., Menon D., Steyerberg E. W., Adams H., Alessandro M., Allanson J., Amrein K., Andaluz N., Andelic N., Andrea N., Andreassen L., Anke A., Antoni A., Ardon H., Audibert G., Auslands K., Azouvi P., Baciu C., Bacon A., Badenes R., Baglin T., Bartels R., Barzo P., Bauerfeind U., Beer R., Belda F. J., Bellander B. -M., Belli A., Bellier R., Benali H., Benard T., Berardino M., Beretta L., Beynon C., Bilotta F., Binder H., Biqiri E., Blaabjerg M., Borgen L. S., Bouzat P., Bragge P., Brazinova A., Brehar F., Brorsson C., Buki A., Bullinger M., Buckova V., Calappi E., Cameron P., Carbayo L. G., Carise E., Carpenter C., Castano-Leon A. M., Causin F., Chevallard G., Chieregato A., Citerio G., Coburn M. C., Coles J., Cooper J. D., Correia M., Covic A., Curry N., Czeiter E., Czosnyka M., Dahyot-Fizelier C., Damas F., Damas P., Dawes H., De Keyser V., Della Corte F., Depreitere B., Ding S., Dippel D., Dizdarevic K., Duliere G. -L., Dzeko A., Eapen G., Engemann H., Ercole A., Esser P., Ezer E., Fabricius M., Feigin V. L., Feng J., Foks K., Fossi F., Francony G., Frantzen J., Freo U., Frisvold S., Furmanov A., Gagliardo P., Galanaud D., Gao G., Geleijns K., Ghuysen A., Giraud B., Glocker B., Gomez P. A., Grossi F., Gruen R. L., Gupta D., Haagsma J. A., Hadzic E., Haitsma I., Hartings J. A., Helbok R., Helseth E., Hertle D., Hill S., Hoedemaekers A., Hoefer S., Hutchinson P. J., Haberg A. K., Jacobs B., Janciak I., Janssens K., Jiang J., Jones K., Kalala J. -P., Kamnitsas K., Karan M., Karau J., Katila A., Kaukonen M., Keeling D., Kerforne T., Ketharanathan N., Kettunen J., Kivisaari R., Kolias A. G., Kolumban B., Kompanje E., Kondziella D., Koskinen L. -O., Kovacs N., Kalovits F., Lagares A., Lanyon L., Laureys S., Lauritzen M., Lecky F., Ledig C., Lefering R., Legrand V., Lei J., Levi L., Lightfoot R., Lingsma H., Loeckx D., Lozano A., Luddington R., Luijten-Arts C., MacDonald S., MacFayden C., Maegele M., Majdan M., Major S., Manara A., Manhes P., Manley G., Martin D., Martino C., Maruenda A., Marechal H., Mastelova D., Mattern J., McMahon C., Melegh B., Menovsky T., Morganti-Kossmann C., Mulazzi D., Mutschler M., Muhlan H., Negru A., Nelson D., Neugebauer E., Newcombe V., Noirhomme Q., Nyiradi J., Oddo M., Oldenbeuving A., Oresic M., Ortolano F., Palotie A., Parizel P. M., Patruno A., Payen J. -F., Perera N., Perlbarg V., Persona P., Peul W., Pichon N., Piilgaard H., Piippo A., Pili F. S., Pirinen M., Ples H., Pomposo I., Psota M., Pullens P., Puybasset L., Ragauskas A., Raj R., Rambadagalla M., Rehorcikova V., Rhodes J., Richardson S., Ripatti S., Rocka S., Rodier N., Roe C., Roise O., Roks G., Romegoux P., Rosand J., Rosenfeld J., Rosenlund C., Rosenthal G., Rossaint R., Rossi S., Rostalski T., Rueckert D. L., Ruiz De Arcaute F., Rusnak M., Sacchi M., Sahakian B., Sahuquillo J., Sakowitz O., Sala F., Sanchez-Pena P., Sanchez-Porras R., Sandor J., Santos E., Sasse N., Sasu L., Savo D., Schipper I., Schlosser B., Schmidt S., Schneider A., Schoechl H., Schoonman G., Schou R. F., Schwendenwein E., Scholl M., Sir O., Skandsen T., Smakman L., Smeets D., Smielewski P., Sorinola A., Stamatakis E. L., Stanworth S., Stegemann K., Steinbuchel N., Stevens R., Stewart W., Stocchetti N., Sundstrom N., Synnot A., Szabo J., Soderberg J., Taccone F. S., Tamas V., Tanskanen P., Tascu A., Taylor M. S., Te Ao B., Tenovuo O., Teodorani G., Theadom A., Thomas M., Tibboel D., Tolias C., Tshibanda J. -F. L., Tudora C. M., Vajkoczy P., Valeinis E., Van Hecke W., Van Praag D., Van Roost D., Van Vlierberghe E., Vande Vyvere T., Vanhaudenhuyse A., Vargiolu A., Vega E., Verheyden J., Vespa P. M., Vik A., Vilcinis R., Vizzino G., Vleggeert-Lankamp C., Volovici V., Vulekovic P., Vamos Z., Wade D., Wang K. K. W., Wang L., Wildschut E., Williams G., Willumsen L., Wilson A., Wilson L., Winkler M. K. L., Ylen P., Younsi A., Zaaroor M., Zhang Z., Zheng Z., Zumbo F., De Lange S., De Ruiter G. C. W., Den Boogert H., Van Dijck J., Van Essen T. A., Van Heugten C., Van Der Jagt M., Van Der Naalt J., Cnossen, M, Polinder, S, Lingsma, H, Maas, A, Menon, D, Steyerberg, E, Adams, H, Alessandro, M, Allanson, J, Amrein, K, Andaluz, N, Andelic, N, Andrea, N, Andreassen, L, Anke, A, Antoni, A, Ardon, H, Audibert, G, Auslands, K, Azouvi, P, Baciu, C, Bacon, A, Badenes, R, Baglin, T, Bartels, R, Barzo, P, Bauerfeind, U, Beer, R, Belda, F, Bellander, B, Belli, A, Bellier, R, Benali, H, Benard, T, Berardino, M, Beretta, L, Beynon, C, Bilotta, F, Binder, H, Biqiri, E, Blaabjerg, M, Borgen, L, Bouzat, P, Bragge, P, Brazinova, A, Brehar, F, Brorsson, C, Buki, A, Bullinger, M, Buckova, V, Calappi, E, Cameron, P, Carbayo, L, Carise, E, Carpenter, C, Castano-Leon, A, Causin, F, Chevallard, G, Chieregato, A, Citerio, G, Coburn, M, Coles, J, Cooper, J, Correia, M, Covic, A, Curry, N, Czeiter, E, Czosnyka, M, Dahyot-Fizelier, C, Damas, F, Damas, P, Dawes, H, De Keyser, V, Della Corte, F, Depreitere, B, Ding, S, Dippel, D, Dizdarevic, K, Duliere, G, Dzeko, A, Eapen, G, Engemann, H, Ercole, A, Esser, P, Ezer, E, Fabricius, M, Feigin, V, Feng, J, Foks, K, Fossi, F, Francony, G, Frantzen, J, Freo, U, Frisvold, S, Furmanov, A, Gagliardo, P, Galanaud, D, Gao, G, Geleijns, K, Ghuysen, A, Giraud, B, Glocker, B, Gomez, P, Grossi, F, Gruen, R, Gupta, D, Haagsma, J, Hadzic, E, Haitsma, I, Hartings, J, Helbok, R, Helseth, E, Hertle, D, Hill, S, Hoedemaekers, A, Hoefer, S, Hutchinson, P, Haberg, A, Jacobs, B, Janciak, I, Janssens, K, Jiang, J, Jones, K, Kalala, J, Kamnitsas, K, Karan, M, Karau, J, Katila, A, Kaukonen, M, Keeling, D, Kerforne, T, Ketharanathan, N, Kettunen, J, Kivisaari, R, Kolias, A, Kolumban, B, Kompanje, E, Kondziella, D, Koskinen, L, Kovacs, N, Kalovits, F, Lagares, A, Lanyon, L, Laureys, S, Lauritzen, M, Lecky, F, Ledig, C, Lefering, R, Legrand, V, Lei, J, Levi, L, Lightfoot, R, Loeckx, D, Lozano, A, Luddington, R, Luijten-Arts, C, Macdonald, S, Macfayden, C, Maegele, M, Majdan, M, Major, S, Manara, A, Manhes, P, Manley, G, Martin, D, Martino, C, Maruenda, A, Marechal, H, Mastelova, D, Mattern, J, Mcmahon, C, Melegh, B, Menovsky, T, Morganti-Kossmann, C, Mulazzi, D, Mutschler, M, Muhlan, H, Negru, A, Nelson, D, Neugebauer, E, Newcombe, V, Noirhomme, Q, Nyiradi, J, Oddo, M, Oldenbeuving, A, Oresic, M, Ortolano, F, Palotie, A, Parizel, P, Patruno, A, Payen, J, Perera, N, Perlbarg, V, Persona, P, Peul, W, Pichon, N, Piilgaard, H, Piippo, A, Pili, F, Pirinen, M, Ples, H, Pomposo, I, Psota, M, Pullens, P, Puybasset, L, Ragauskas, A, Raj, R, Rambadagalla, M, Rehorcikova, V, Rhodes, J, Richardson, S, Ripatti, S, Rocka, S, Rodier, N, Roe, C, Roise, O, Roks, G, Romegoux, P, Rosand, J, Rosenfeld, J, Rosenlund, C, Rosenthal, G, Rossaint, R, Rossi, S, Rostalski, T, Rueckert, D, Ruiz De Arcaute, F, Rusnak, M, Sacchi, M, Sahakian, B, Sahuquillo, J, Sakowitz, O, Sala, F, Sanchez-Pena, P, Sanchez-Porras, R, Sandor, J, Santos, E, Sasse, N, Sasu, L, Savo, D, Schipper, I, Schlosser, B, Schmidt, S, Schneider, A, Schoechl, H, Schoonman, G, Schou, R, Schwendenwein, E, Scholl, M, Sir, O, Skandsen, T, Smakman, L, Smeets, D, Smielewski, P, Sorinola, A, Stamatakis, E, Stanworth, S, Stegemann, K, Steinbuchel, N, Stevens, R, Stewart, W, Stocchetti, N, Sundstrom, N, Synnot, A, Szabo, J, Soderberg, J, Taccone, F, Tamas, V, Tanskanen, P, Tascu, A, Taylor, M, Te Ao, B, Tenovuo, O, Teodorani, G, Theadom, A, Thomas, M, Tibboel, D, Tolias, C, Tshibanda, J, Tudora, C, Vajkoczy, P, Valeinis, E, Van Hecke, W, Van Praag, D, Van Roost, D, Van Vlierberghe, E, Vande Vyvere, T, Vanhaudenhuyse, A, Vargiolu, A, Vega, E, Verheyden, J, Vespa, P, Vik, A, Vilcinis, R, Vizzino, G, Vleggeert-Lankamp, C, Volovici, V, Vulekovic, P, Vamos, Z, Wade, D, Wang, K, Wang, L, Wildschut, E, Williams, G, Willumsen, L, Wilson, A, Wilson, L, Winkler, M, Ylen, P, Younsi, A, Zaaroor, M, Zhang, Z, Zheng, Z, Zumbo, F, De Lange, S, De Ruiter, G, Den Boogert, H, Van Dijck, J, Van Essen, T, Van Heugten, C, Van Der Jagt, M, Van Der Naalt, J, Cnossen M. C., Polinder S., Lingsma H. F., Maas A. I. R., Menon D., Steyerberg E. W., Adams H., Alessandro M., Allanson J., Amrein K., Andaluz N., Andelic N., Andrea N., Andreassen L., Anke A., Antoni A., Ardon H., Audibert G., Auslands K., Azouvi P., Baciu C., Bacon A., Badenes R., Baglin T., Bartels R., Barzo P., Bauerfeind U., Beer R., Belda F. J., Bellander B. -M., Belli A., Bellier R., Benali H., Benard T., Berardino M., Beretta L., Beynon C., Bilotta F., Binder H., Biqiri E., Blaabjerg M., Borgen L. S., Bouzat P., Bragge P., Brazinova A., Brehar F., Brorsson C., Buki A., Bullinger M., Buckova V., Calappi E., Cameron P., Carbayo L. G., Carise E., Carpenter C., Castano-Leon A. M., Causin F., Chevallard G., Chieregato A., Citerio G., Coburn M. C., Coles J., Cooper J. D., Correia M., Covic A., Curry N., Czeiter E., Czosnyka M., Dahyot-Fizelier C., Damas F., Damas P., Dawes H., De Keyser V., Della Corte F., Depreitere B., Ding S., Dippel D., Dizdarevic K., Duliere G. -L., Dzeko A., Eapen G., Engemann H., Ercole A., Esser P., Ezer E., Fabricius M., Feigin V. L., Feng J., Foks K., Fossi F., Francony G., Frantzen J., Freo U., Frisvold S., Furmanov A., Gagliardo P., Galanaud D., Gao G., Geleijns K., Ghuysen A., Giraud B., Glocker B., Gomez P. A., Grossi F., Gruen R. L., Gupta D., Haagsma J. A., Hadzic E., Haitsma I., Hartings J. A., Helbok R., Helseth E., Hertle D., Hill S., Hoedemaekers A., Hoefer S., Hutchinson P. J., Haberg A. K., Jacobs B., Janciak I., Janssens K., Jiang J., Jones K., Kalala J. -P., Kamnitsas K., Karan M., Karau J., Katila A., Kaukonen M., Keeling D., Kerforne T., Ketharanathan N., Kettunen J., Kivisaari R., Kolias A. G., Kolumban B., Kompanje E., Kondziella D., Koskinen L. -O., Kovacs N., Kalovits F., Lagares A., Lanyon L., Laureys S., Lauritzen M., Lecky F., Ledig C., Lefering R., Legrand V., Lei J., Levi L., Lightfoot R., Lingsma H., Loeckx D., Lozano A., Luddington R., Luijten-Arts C., MacDonald S., MacFayden C., Maegele M., Majdan M., Major S., Manara A., Manhes P., Manley G., Martin D., Martino C., Maruenda A., Marechal H., Mastelova D., Mattern J., McMahon C., Melegh B., Menovsky T., Morganti-Kossmann C., Mulazzi D., Mutschler M., Muhlan H., Negru A., Nelson D., Neugebauer E., Newcombe V., Noirhomme Q., Nyiradi J., Oddo M., Oldenbeuving A., Oresic M., Ortolano F., Palotie A., Parizel P. M., Patruno A., Payen J. -F., Perera N., Perlbarg V., Persona P., Peul W., Pichon N., Piilgaard H., Piippo A., Pili F. S., Pirinen M., Ples H., Pomposo I., Psota M., Pullens P., Puybasset L., Ragauskas A., Raj R., Rambadagalla M., Rehorcikova V., Rhodes J., Richardson S., Ripatti S., Rocka S., Rodier N., Roe C., Roise O., Roks G., Romegoux P., Rosand J., Rosenfeld J., Rosenlund C., Rosenthal G., Rossaint R., Rossi S., Rostalski T., Rueckert D. L., Ruiz De Arcaute F., Rusnak M., Sacchi M., Sahakian B., Sahuquillo J., Sakowitz O., Sala F., Sanchez-Pena P., Sanchez-Porras R., Sandor J., Santos E., Sasse N., Sasu L., Savo D., Schipper I., Schlosser B., Schmidt S., Schneider A., Schoechl H., Schoonman G., Schou R. F., Schwendenwein E., Scholl M., Sir O., Skandsen T., Smakman L., Smeets D., Smielewski P., Sorinola A., Stamatakis E. L., Stanworth S., Stegemann K., Steinbuchel N., Stevens R., Stewart W., Stocchetti N., Sundstrom N., Synnot A., Szabo J., Soderberg J., Taccone F. S., Tamas V., Tanskanen P., Tascu A., Taylor M. S., Te Ao B., Tenovuo O., Teodorani G., Theadom A., Thomas M., Tibboel D., Tolias C., Tshibanda J. -F. L., Tudora C. M., Vajkoczy P., Valeinis E., Van Hecke W., Van Praag D., Van Roost D., Van Vlierberghe E., Vande Vyvere T., Vanhaudenhuyse A., Vargiolu A., Vega E., Verheyden J., Vespa P. M., Vik A., Vilcinis R., Vizzino G., Vleggeert-Lankamp C., Volovici V., Vulekovic P., Vamos Z., Wade D., Wang K. K. W., Wang L., Wildschut E., Williams G., Willumsen L., Wilson A., Wilson L., Winkler M. K. L., Ylen P., Younsi A., Zaaroor M., Zhang Z., Zheng Z., Zumbo F., De Lange S., De Ruiter G. C. W., Den Boogert H., Van Dijck J., Van Essen T. A., Van Heugten C., Van Der Jagt M., and Van Der Naalt J.
Abstract: Introduction: The strength of evidence underpinning care and treatment recommendations in traumatic brain injury (TBI) is low. Comparative effectiveness research (CER) has been proposed as a framework to provide evidence for optimal care for TBI patients. The first step in CER is to map the existing variation. The aim of current study is to quantify variation in general structural and process characteristics among centers participating in the Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study. Methods: We designed a set of 11 provider profiling questionnaires with 321 questions about various aspects of TBI care, chosen based on literature and expert opinion. After pilot testing, questionnaires were disseminated to 71 centers from 20 countries participating in the CENTER-TBI study. Reliability of questionnaires was estimated by calculating a concordance rate among 5% duplicate questions. Results: All 71 centers completed the questionnaires. Median concordance rate among duplicate questions was 0.85. The majority of centers were academic hospitals (n = 65, 92%), designated as a level I trauma center (n = 48, 68%) and situated in an urban location (n = 70, 99%). The availability of facilities for neuro-trauma care varied across centers; e.g. 40 (57%) had a dedicated neuro-intensive care unit (ICU), 36 (51%) had an in-hospital rehabilitation unit and the organization of the ICU was closed in 64% (n = 45) of the centers. In addition, we found wide variation in processes of care, such as the ICU admission policy and intracranial pressure monitoring policy among centers. Conclusion: Even among high-volume, specialized neurotrauma centers there is substantial variation in structures and processes of TBI care. This variation provides an opportunity to study effectiveness of specific aspects of TBI care and to identify best practices with CER approaches.
Published: 2016

3. Variation in monitoring and treatment policies for intracranial hypertension in traumatic brain injury: A survey in 66 neurotrauma centers participating in the CENTER-TBI study

Author: Cnossen, M.C. (Maryse), Huijben, J.A. (Jilske A.), van der Jagt, M. (Mathieu), Volovici, V. (Victor), van Essen, T. (Thomas), Polinder, S. (Suzanne), Nelson, D. (David), Ercole, A. (Ari), Stocchetti, N. (Nino), Citerio, G. (Giuseppe), Peul, W.C. (Wilco), Maas, A.I.R. (Andrew), Menon, D.K. (David ), Steyerberg, E.W. (Ewout), Lingsma, H.F. (Hester F.), Adams, H. (Hadie), Alessandro, M. (Masala), Allanson, J.E. (Judith), Amrein, K. (Krisztina), Andaluz, N. (Norberto), Andelic, N. (Nada), Andrea, N. (Nanni), Andreassen, L. (Lasse), Anke, A. (Audny), Antoni, A. (Anna), Ardon, H. (Hilko), Audibert, G. (Gérard), Auslands, K. (Kaspars), Azouvi, P. (Philippe), Baciu, C. (Camelia), Bacon, A. (Andrew), Badenes, R. (Rafael), Baglin, T. (Trevor), Bartels, R.H.M.A. (Ronald), Barzo, P. (P.), Bauerfeind, U. (Ursula), Beer, R. (Ronny), Belda, F.J. (Francisco Javier), Bellander, B.-M. (Bo-Michael), Belli, A. (Antonio), Bellier, R. (Rémy), Benali, H. (Habib), Benard, T. (Thierry), Berardino, M. (Maurizio), Beretta, L. (Luigi), Beynon, C. (Christopher), Bilotta, F. (Federico), Binder, H. (Harald), Biqiri, E. (Erta), Blaabjerg, M. (Morten), Lund, S.B. (Stine Borgen), Bouzat, P. (Pierre), Bragge, P. (Peter), Brazinova, A. (Alexandra), Brehar, F. (Felix), Brorsson, C. (Camilla), Buki, A. (Andras), Bullinger, M. (Monika), Bucková, V. (Veronika), Calappi, E. (Emiliana), Cameron, P. (Peter), Carbayo, L.G. (Lozano Guillermo), Carise, E. (Elsa), Carpenter, K.L.H. (Keri L.H.), Castaño-León, A.M. (Ana M.), Causin, F. (Francesco), Chevallard, G. (Giorgio), Chieregato, A. (Arturo), Cnossen, M. (Maryse), Coburn, M. (Mark), Coles, J.P. (Jonathan P.), Cooper, J.D. (Jamie D.), Correia, M. (Marta), Covic, A. (Amra), Curry, N. (Nicola), Czeiter, E. (Endre), Czosnyka, M. (Marek), Dahyot-Fizelier, C. (Claire), Damas, F. (François), Damas, P. (Pierre), Dawes, H. (Helen), De Keyser, V. (Véronique), Corte, F.D. (Francesco), Depreitere, B. (Bart), Ding, S. (Shenghao), Dippel, D.W.J. (Diederik), Dizdarevic, K. (Kemal), Dulière, G.-L. (Guy-Loup), Dzeko, A. (Adelaida), Eapen, G. (George), Engemann, H. (Heiko), Esser, P. (Patrick), Ezer, E. (Erzsébet), Fabricius, M. (Martin), Feigin, V.L. (V.), Feng, J. (Junfeng), Foks, K. (Kelly), Fossi, F. (Francesca), Francony, G. (Gilles), Frantzén, J. (Janek), Freo, U. (Ulderico), Frisvold, S.K. (Shirin Kordasti), Furmanov, A. (Alex), Gagliardo, P. (Pablo), Galanaud, D. (Damien), Gao, G. (Guoyi), Geleijns, K. (Karin), Ghuysen, A. (Alexandre), Giraud, B. (Benoit), Glocker, B. (Ben), Gomez, P.A. (Pedro A.), Grossi, F. (Francesca), Gruen, R.L. (Russell), Gupta, D. (Deepak), Haagsma, J.A. (Juanita), Hadzic, E. (Ermin), Haitsma, I. (Iain), Hartings, J.A. (Jed), Helbok, R. (Raimund), Helseth, E. (Eirik), Hertle, D. (Daniel), Hill, S. (Sean), Hoedemaekers, A. (Astrid), Hoefer, S. (Stefan), Hutchinson, P.J. (Peter J.), Håberg, K.A. (Kristine Asta), Jacobs, B.C. (Bart), Janciak, I. (Ivan), Janssens, K. (Koen), Jiang, J.-Y. (Ji-Yao), Jones, K. (Kelly), Kalala, J.-P. (Jean-Pierre), Kamnitsas, K. (Konstantinos), Karan, M. (Mladen), Karau, J. (Jana), Katila, A. (Ari), Kaukonen, M. (Maija), Keeling, D. (David), Kerforne, T. (Thomas), Ketharanathan, N. (Naomi), Kettunen, J. (Johannes), Kivisaari, R. (Riku), Kolias, A.G. (Angelos G.), Kolumbán, B. (Bálint), Kompanje, E.J.O. (Erwin), Kondziella, D. (Daniel), Koskinen, L.-O. (Lars-Owe), Kovács, N. (Noémi), Kalovits, F. (Ferenc), Lagares, A. (Alfonso), Lanyon, L. (Linda), Laureys, S. (Steven), Lauritzen, M. (Martin), Lecky, F.E. (Fiona), Ledig, C. (Christian), Lefering, R., Legrand, V. (Valerie), Lei, J. (Jin), Levi, L. (Leon), Lightfoot, R. (Roger), Lingsma, H.F. (Hester), Loeckx, D. (Dirk), Lozano, A. (Angels), Luddington, R. (Roger), Luijten-Arts, C. (Chantal), Maas, A.I.R. (Andrew I.R.), MacDonald, S. (Stephen), MacFayden, C. (Charles), Maegele, M. (Marc), Majdan, M. (Marek), Major, S. (Sebastian), Manara, A. (Alex), Manhes, P. (Pauline), Manley, G. (Geoffrey), Martin, D. (Didier), Martino, C. (Costanza), Maruenda, A. (Armando), Maréchal, H. (Hugues), Mastelova, D. (Dagmara), Mattern, J. (Julia), McMahon, C. (Catherine), Melegh, B. (Béla), Menon, D. (David), Menovsky, T. (Tomas), Morganti-Kossmann, C. (Cristina), Mulazzi, D. (Davide), Mutschler, M. (Manuel), Mühlan, H. (Holger), Negru, A. (Ancuta), Neugebauer, E. (Eddy), Newcombe, V.F. (Virginia F.), Noirhomme, Q. (Quentin), Nyirádi, J. (József), Oddo, M. (Mauro), Oldenbeuving, A.W., Oresic, M. (Matej), Ortolano, F. (Fabrizio), Palotie, A. (Aarno), Parizel, P.M., Patruno, A. (Adriana), Payen, J.-F. (Jean-François), Perera, N. (Natascha), Perlbarg, V. (Vincent), Persona, P. (Paolo), Peul, W. (Wilco), Pichon, N. (Nicolas), Piilgaard, H. (Henning), Piippo, A. (Anna), Floury, S.P. (Sébastien Pili), Pirinen, M. (Matti), Ples, H. (Horia), Pomposo, I. (Inigo), Psota, M. (Marek), Pullens, P. (Pim), Puybasset, L. (Louis), Ragauskas, A. (Arminas), Raj, R. (Rahul), Rambadagalla, M. (Malinka), Rehorcíková, V. (Veronika), Rhodes, J.K.J. (Jonathan K.J.), Richardson, S. (Sylvia), Ripatti, S. (Samuli), Rocka, S. (Saulius), Rodier, N. (Nicolas), Roe, C. (Cecilie), Roise, O. (Olav), Roks, C.M.A.A. (Gerwin), Romegoux, P. (Pauline), Rosand, J. (Jonathan), Rosenfeld, J. (Jeffrey), Rosenlund, C. (Christina), Rosenthal, G. (Guy), Rossaint, R. (Rolf), Rossi, S. (Sandra), Rostalski, T. (Tim), Rueckert, D. (Daniel), de Ruiz, A.F. (Arcaute Felix), Rusnák, M. (Martin), Sacchi, M. (Marco), Sahakian, B. (Barbara), Sahuquillo, J. (Juan), Sakowitz, O. (Oliver), Sala, F. (Francesca), Sanchez-Pena, P. (Paola), Sanchez-Porras, R. (Renan), Sandor, J. (Janos), Santos, E. (Edgar), Sasse, N. (Nadine), Sasu, L. (Luminita), Savo, D. (Davide), Schipper, I.B. (Inger), Schlößer, B. (Barbara), Schmidt, S. (Silke), Schneider, A. (Annette), Schoechl, H. (Herbert), Schoonman, G.G. (Guus), Rico, F.S. (Frederik Schou), Schwendenwein, E. (Elisabeth), Schöll, M. (Michael), Sir, O. (özcan), Skandsen, T. (Toril), Smakman, L. (Lidwien), Smeets, D. (Dominique), Smielewski, P. (Peter), Sorinola, A. (Abayomi), Stamatakis, E. (Emmanuel), Stanworth, S. (Simon), Stegemann, K. (Katrin), Steinbüchel, N. (Nicole), Stevens, R. (Robert), Stewart, W. (William), Sundström, N. (Nina), Synnot, A. (Anneliese), Szabó, J. (József), Söderberg, J. (Jeannette), Taccone, F.S. (Fabio), Tamás, V. (Viktória), Tanskanen, P. (Päivi), Tascu, A. (Alexandru), Taylor, M.S. (Mark Steven), Te, A.B. (Ao Braden), Tenovuo, O. (Olli), Teodorani, G. (Guido), Theadom, A. (Alice), Thomas, M. (Matt), Tibboel, D. (Dick), Tolias, C.M. (Christos M.), Tshibanda, J.-F.L. (Jean-Flory Luaba), Tudora, C.M. (Cristina Maria), Vajkoczy, P. (Peter), Valeinis, E. (Egils), Hecke, W.V. (Wim Van), Praag, D.V. (Dominique Van), Dirk, V.R. (Van Roost), Vlierberghe, E.V. (Eline Van), Vyvere, T.V. (Thijs vande), Vanhaudenhuyse, A. (Audrey), Vargiolu, A. (Alessia), Vega, E. (Emmanuel), Verheyden, J. (Jan), Vespa, P.M. (Paul M.), Vik, A. (Anne), Vilcinis, R. (Rimantas), Vizzino, G. (Giacinta), Vleggeert-Lankamp, C.L.A.M. (Carmen), Vulekovic, P. (Peter), Vámos, Z. (Zoltán), Wade, D. (Derick), Wang, K.K.W. (Kevin K.W.), Wang, L. (Lei), Wildschut, E.D. (Enno), Williams, G. (Guy), Willumsen, L. (Lisette), Wilson, A. (Adam), Wilson, L. (Lindsay), Winkler, M.K.L. (Maren K.L.), Ylén, P. (Peter), Younsi, A. (Alexander), Zaaroor, M. (Menashe), Zhang, Z. (Zhiqun), Zheng, Z. (Zelong), Zumbo, F. (Fabrizio), de Lange, S. (Stefanie), De Ruiter, G.C.W. (Godard C.W.), den Boogert, H. (Hugo), van Dijck, J. (Jeroen), Essen, T.A. (T.) van, van Heugten, C.M. (Caroline M.), Jagt, M. (Mathieu) van der, Naalt, J. (Joukje) van der, Cnossen, M.C. (Maryse), Huijben, J.A. (Jilske A.), van der Jagt, M. (Mathieu), Volovici, V. (Victor), van Essen, T. (Thomas), Polinder, S. (Suzanne), Nelson, D. (David), Ercole, A. (Ari), Stocchetti, N. (Nino), Citerio, G. (Giuseppe), Peul, W.C. (Wilco), Maas, A.I.R. (Andrew), Menon, D.K. (David ), Steyerberg, E.W. (Ewout), Lingsma, H.F. (Hester F.), Adams, H. (Hadie), Alessandro, M. (Masala), Allanson, J.E. (Judith), Amrein, K. (Krisztina), Andaluz, N. (Norberto), Andelic, N. (Nada), Andrea, N. (Nanni), Andreassen, L. (Lasse), Anke, A. (Audny), Antoni, A. (Anna), Ardon, H. (Hilko), Audibert, G. (Gérard), Auslands, K. (Kaspars), Azouvi, P. (Philippe), Baciu, C. (Camelia), Bacon, A. (Andrew), Badenes, R. (Rafael), Baglin, T. (Trevor), Bartels, R.H.M.A. (Ronald), Barzo, P. (P.), Bauerfeind, U. (Ursula), Beer, R. (Ronny), Belda, F.J. (Francisco Javier), Bellander, B.-M. (Bo-Michael), Belli, A. (Antonio), Bellier, R. (Rémy), Benali, H. (Habib), Benard, T. (Thierry), Berardino, M. (Maurizio), Beretta, L. (Luigi), Beynon, C. (Christopher), Bilotta, F. (Federico), Binder, H. (Harald), Biqiri, E. (Erta), Blaabjerg, M. (Morten), Lund, S.B. (Stine Borgen), Bouzat, P. (Pierre), Bragge, P. (Peter), Brazinova, A. (Alexandra), Brehar, F. (Felix), Brorsson, C. (Camilla), Buki, A. (Andras), Bullinger, M. (Monika), Bucková, V. (Veronika), Calappi, E. (Emiliana), Cameron, P. (Peter), Carbayo, L.G. (Lozano Guillermo), Carise, E. (Elsa), Carpenter, K.L.H. (Keri L.H.), Castaño-León, A.M. (Ana M.), Causin, F. (Francesco), Chevallard, G. (Giorgio), Chieregato, A. (Arturo), Cnossen, M. (Maryse), Coburn, M. (Mark), Coles, J.P. (Jonathan P.), Cooper, J.D. (Jamie D.), Correia, M. (Marta), Covic, A. (Amra), Curry, N. (Nicola), Czeiter, E. (Endre), Czosnyka, M. (Marek), Dahyot-Fizelier, C. (Claire), Damas, F. (François), Damas, P. (Pierre), Dawes, H. (Helen), De Keyser, V. (Véronique), Corte, F.D. (Francesco), Depreitere, B. (Bart), Ding, S. (Shenghao), Dippel, D.W.J. (Diederik), Dizdarevic, K. (Kemal), Dulière, G.-L. (Guy-Loup), Dzeko, A. (Adelaida), Eapen, G. (George), Engemann, H. (Heiko), Esser, P. (Patrick), Ezer, E. (Erzsébet), Fabricius, M. (Martin), Feigin, V.L. (V.), Feng, J. (Junfeng), Foks, K. (Kelly), Fossi, F. (Francesca), Francony, G. (Gilles), Frantzén, J. (Janek), Freo, U. (Ulderico), Frisvold, S.K. (Shirin Kordasti), Furmanov, A. (Alex), Gagliardo, P. (Pablo), Galanaud, D. (Damien), Gao, G. (Guoyi), Geleijns, K. (Karin), Ghuysen, A. (Alexandre), Giraud, B. (Benoit), Glocker, B. (Ben), Gomez, P.A. (Pedro A.), Grossi, F. (Francesca), Gruen, R.L. (Russell), Gupta, D. (Deepak), Haagsma, J.A. (Juanita), Hadzic, E. (Ermin), Haitsma, I. (Iain), Hartings, J.A. (Jed), Helbok, R. (Raimund), Helseth, E. (Eirik), Hertle, D. (Daniel), Hill, S. (Sean), Hoedemaekers, A. (Astrid), Hoefer, S. (Stefan), Hutchinson, P.J. (Peter J.), Håberg, K.A. (Kristine Asta), Jacobs, B.C. (Bart), Janciak, I. (Ivan), Janssens, K. (Koen), Jiang, J.-Y. (Ji-Yao), Jones, K. (Kelly), Kalala, J.-P. (Jean-Pierre), Kamnitsas, K. (Konstantinos), Karan, M. (Mladen), Karau, J. (Jana), Katila, A. (Ari), Kaukonen, M. (Maija), Keeling, D. (David), Kerforne, T. (Thomas), Ketharanathan, N. (Naomi), Kettunen, J. (Johannes), Kivisaari, R. (Riku), Kolias, A.G. (Angelos G.), Kolumbán, B. (Bálint), Kompanje, E.J.O. (Erwin), Kondziella, D. (Daniel), Koskinen, L.-O. (Lars-Owe), Kovács, N. (Noémi), Kalovits, F. (Ferenc), Lagares, A. (Alfonso), Lanyon, L. (Linda), Laureys, S. (Steven), Lauritzen, M. (Martin), Lecky, F.E. (Fiona), Ledig, C. (Christian), Lefering, R., Legrand, V. (Valerie), Lei, J. (Jin), Levi, L. (Leon), Lightfoot, R. (Roger), Lingsma, H.F. (Hester), Loeckx, D. (Dirk), Lozano, A. (Angels), Luddington, R. (Roger), Luijten-Arts, C. (Chantal), Maas, A.I.R. (Andrew I.R.), MacDonald, S. (Stephen), MacFayden, C. (Charles), Maegele, M. (Marc), Majdan, M. (Marek), Major, S. (Sebastian), Manara, A. (Alex), Manhes, P. (Pauline), Manley, G. (Geoffrey), Martin, D. (Didier), Martino, C. (Costanza), Maruenda, A. (Armando), Maréchal, H. (Hugues), Mastelova, D. (Dagmara), Mattern, J. (Julia), McMahon, C. (Catherine), Melegh, B. (Béla), Menon, D. (David), Menovsky, T. (Tomas), Morganti-Kossmann, C. (Cristina), Mulazzi, D. (Davide), Mutschler, M. (Manuel), Mühlan, H. (Holger), Negru, A. (Ancuta), Neugebauer, E. (Eddy), Newcombe, V.F. (Virginia F.), Noirhomme, Q. (Quentin), Nyirádi, J. (József), Oddo, M. (Mauro), Oldenbeuving, A.W., Oresic, M. (Matej), Ortolano, F. (Fabrizio), Palotie, A. (Aarno), Parizel, P.M., Patruno, A. (Adriana), Payen, J.-F. (Jean-François), Perera, N. (Natascha), Perlbarg, V. (Vincent), Persona, P. (Paolo), Peul, W. (Wilco), Pichon, N. (Nicolas), Piilgaard, H. (Henning), Piippo, A. (Anna), Floury, S.P. (Sébastien Pili), Pirinen, M. (Matti), Ples, H. (Horia), Pomposo, I. (Inigo), Psota, M. (Marek), Pullens, P. (Pim), Puybasset, L. (Louis), Ragauskas, A. (Arminas), Raj, R. (Rahul), Rambadagalla, M. (Malinka), Rehorcíková, V. (Veronika), Rhodes, J.K.J. (Jonathan K.J.), Richardson, S. (Sylvia), Ripatti, S. (Samuli), Rocka, S. (Saulius), Rodier, N. (Nicolas), Roe, C. (Cecilie), Roise, O. (Olav), Roks, C.M.A.A. (Gerwin), Romegoux, P. (Pauline), Rosand, J. (Jonathan), Rosenfeld, J. (Jeffrey), Rosenlund, C. (Christina), Rosenthal, G. (Guy), Rossaint, R. (Rolf), Rossi, S. (Sandra), Rostalski, T. (Tim), Rueckert, D. (Daniel), de Ruiz, A.F. (Arcaute Felix), Rusnák, M. (Martin), Sacchi, M. (Marco), Sahakian, B. (Barbara), Sahuquillo, J. (Juan), Sakowitz, O. (Oliver), Sala, F. (Francesca), Sanchez-Pena, P. (Paola), Sanchez-Porras, R. (Renan), Sandor, J. (Janos), Santos, E. (Edgar), Sasse, N. (Nadine), Sasu, L. (Luminita), Savo, D. (Davide), Schipper, I.B. (Inger), Schlößer, B. (Barbara), Schmidt, S. (Silke), Schneider, A. (Annette), Schoechl, H. (Herbert), Schoonman, G.G. (Guus), Rico, F.S. (Frederik Schou), Schwendenwein, E. (Elisabeth), Schöll, M. (Michael), Sir, O. (özcan), Skandsen, T. (Toril), Smakman, L. (Lidwien), Smeets, D. (Dominique), Smielewski, P. (Peter), Sorinola, A. (Abayomi), Stamatakis, E. (Emmanuel), Stanworth, S. (Simon), Stegemann, K. (Katrin), Steinbüchel, N. (Nicole), Stevens, R. (Robert), Stewart, W. (William), Sundström, N. (Nina), Synnot, A. (Anneliese), Szabó, J. (József), Söderberg, J. (Jeannette), Taccone, F.S. (Fabio), Tamás, V. (Viktória), Tanskanen, P. (Päivi), Tascu, A. (Alexandru), Taylor, M.S. (Mark Steven), Te, A.B. (Ao Braden), Tenovuo, O. (Olli), Teodorani, G. (Guido), Theadom, A. (Alice), Thomas, M. (Matt), Tibboel, D. (Dick), Tolias, C.M. (Christos M.), Tshibanda, J.-F.L. (Jean-Flory Luaba), Tudora, C.M. (Cristina Maria), Vajkoczy, P. (Peter), Valeinis, E. (Egils), Hecke, W.V. (Wim Van), Praag, D.V. (Dominique Van), Dirk, V.R. (Van Roost), Vlierberghe, E.V. (Eline Van), Vyvere, T.V. (Thijs vande), Vanhaudenhuyse, A. (Audrey), Vargiolu, A. (Alessia), Vega, E. (Emmanuel), Verheyden, J. (Jan), Vespa, P.M. (Paul M.), Vik, A. (Anne), Vilcinis, R. (Rimantas), Vizzino, G. (Giacinta), Vleggeert-Lankamp, C.L.A.M. (Carmen), Vulekovic, P. (Peter), Vámos, Z. (Zoltán), Wade, D. (Derick), Wang, K.K.W. (Kevin K.W.), Wang, L. (Lei), Wildschut, E.D. (Enno), Williams, G. (Guy), Willumsen, L. (Lisette), Wilson, A. (Adam), Wilson, L. (Lindsay), Winkler, M.K.L. (Maren K.L.), Ylén, P. (Peter), Younsi, A. (Alexander), Zaaroor, M. (Menashe), Zhang, Z. (Zhiqun), Zheng, Z. (Zelong), Zumbo, F. (Fabrizio), de Lange, S. (Stefanie), De Ruiter, G.C.W. (Godard C.W.), den Boogert, H. (Hugo), van Dijck, J. (Jeroen), Essen, T.A. (T.) van, van Heugten, C.M. (Caroline M.), Jagt, M. (Mathieu) van der, and Naalt, J. (Joukje) van der
Abstract: Background: No definitive evidence exists on how intracranial hypertension should be treated in patients with traumatic brain injury (TBI). It is therefore likely that centers and practitioners individually balance potential benefits and risks of different intracranial pressure (ICP) management strategies, resulting in practice variation. The aim of this study was to examine variation in monitoring and treatment policies for intracranial hypertension in patients with TBI. Methods: A 29-item survey on ICP monitoring and treatment was developed on the basis of literature and expert opinion, and it was pilot-tested in 16 centers. The questionnaire was sent to 68 neurotrauma centers participating in the Collaborative European Neurotrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study. Results: The survey was completed by 66 centers (97% response rate). Centers were mainly academic hospitals (n=60, 91%) and designated level I trauma centers (n=44, 67%). The Brain Trauma Foundation guidelines were used in 49 (74%) centers. Approximately 90% of the participants (n=58) indicated placing an ICP monitor in patients with severe TBI and computed tomographic abnormalities. There was no consensus on other indications or on peri-insertion precautions. We found wide variation in the use of first- and second-tier treatments for elevated ICP. Approximately half of the centers were classified as using a relatively aggressive approach to ICP monitoring and treatment (n=32, 48%), whereas the others were considered more conservative (n=34, 52%). Conclusions: Substantial variation was found regarding monitoring and treatment policies in patients with TBI and intracranial hypertension. The results of this survey indicate a lack of consensus between European neurotrauma centers and provide an opportunity and necessity for comparative effectiveness research.
Published: 2017
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4. Multi-modal assessment of neurovascular coupling during cerebral ischaemia and reperfusion using remote middle cerebral artery occlusion

Author: Sutherland, B., Fordsmann, J., Martin, C.J., Neuhaus, A., Witgen, B., Piilgaard, H., Lonstrup, M., Couch, Y., Sibson, N., Lauritzen, M., and Buchan, A.
Subjects: Male, middle cerebral artery occlusion, cerebral blood flow, Infarction, Middle Cerebral Artery, Original Articles, Multimodal Imaging, stroke, Electric Stimulation, Disease Models, Animal, nervous system, Reperfusion Injury, Tissue Plasminogen Activator, cardiovascular system, Animals, Neurovascular Coupling, cardiovascular diseases, Rats, Wistar, alteplase, Blood Flow Velocity
Abstract: Hyperacute changes in cerebral blood flow during cerebral ischaemia and reperfusion are important determinants of injury. Cerebral blood flow is regulated by neurovascular coupling, and disruption of neurovascular coupling contributes to brain plasticity and repair problems. However, it is unknown how neurovascular coupling is affected hyperacutely during cerebral ischaemia and reperfusion. We have developed a remote middle cerebral artery occlusion model in the rat, which enables multi-modal assessment of neurovascular coupling immediately prior to, during and immediately following reperfusion. Male Wistar rats were subjected to remote middle cerebral artery occlusion, where a long filament was advanced intraluminally through a guide cannula in the common carotid artery. Transcallosal stimulation evoked increases in blood flow, tissue oxygenation and neuronal activity, which were diminished by middle cerebral artery occlusion and partially restored during reperfusion. These evoked responses were not affected by administration of the thrombolytic alteplase at clinically used doses. Evoked cerebral blood flow responses were fully restored at 24 h post-middle cerebral artery occlusion indicating that neurovascular dysfunction was not sustained. These data show for the first time that the rat remote middle cerebral artery occlusion model coupled with transcallosal stimulation provides a novel method for continuous assessment of hyperacute neurovascular coupling changes during ischaemia and reperfusion, and offers unique insight into hyperacute ischaemic pathophysiology.
Published: 2016

5. Variation in structure and process of care in traumatic brain injury: Provider profiles of European Neurotrauma Centers participating in the CENTER-TBI study

Author: Cnossen, M.C. (Maryse), Polinder, S. (Suzanne), Lingsma, H.F. (Hester F.), Maas, A.I.R. (Andrew), Menon, D.K. (David ), Steyerberg, E.W. (Ewout), Adams, H. (Hadie), Alessandro, M. (Masala), Allanson, J.E. (Judith), Amrein, K. (Krisztina), Andaluz, N. (Norberto), Andelic, N. (Nada), Andrea, N. (Nanni), Andreassen, L. (Lasse), Anke, A. (Audny), Antoni, A. (Anna), Ardon, H. (Hilko), Audibert, G. (Gérard), Auslands, K. (Kaspars), Azouvi, P. (Philippe), Baciu, C. (Camelia), Bacon, A. (Andrew), Badenes, R. (Rafael), Baglin, T. (Trevor), Bartels, R. (Ronald), Barzó, P. (Pál), Bauerfeind, U. (Ursula), Beer, R. (Ronny), Belda, F.J. (Francisco Javier), Bellander, B.-M. (Bo-Michael), Belli, A. (Antonio), Bellier, R. (Rémy), Benali, H. (Habib), Benard, T. (Thierry), Berardino, M. (Maurizio), Beretta, L. (Luigi), Beynon, C. (Christopher), Bilotta, F. (Federico), Binder, H. (Harald), Biqiri, E. (Erta), Blaabjerg, M. (Morten), Borgen, L.S. (Lund Stine), Bouzat, P. (Pierre), Bragge, P. (Peter), Brazinova, A. (Alexandra), Brehar, F. (Felix), Brorsson, C. (Camilla), Buki, A. (Andras), Bullinger, M. (Monika), Bučková, V. (Veronika), Calappi, E. (Emiliana), Cameron, P. (Peter), Carbayo, L.G. (Lozano Guillermo), Carise, E. (Elsa), Carpenter, C., Castaño-León, A.M. (Ana M.), Causin, F. (Francesco), Chevallard, G. (Giorgio), Chieregato, A. (Arturo), Citerio, G. (Giuseppe), Coburn, M. (Mark), Coles, J.P. (Jonathan P.), Cooper, J.D. (Jamie D.), Correia, M. (Marta), Covic, A. (Amra), Curry, N. (Nicola), Czeiter, E. (Endre), Czosnyka, M. (Marek), Dahyot-Fizelier, C. (Claire), Damas, F. (François), Damas, P. (Pierre), Dawes, H. (Helen), De Keyser, V. (Véronique), Della Corte, F. (Francesco), Depreitere, B. (Bart), Ding, S. (Shenghao), Dippel, D.W.J. (Diederik), Dizdarevic, K. (Kemal), Dulière, G.-L. (Guy-Loup), Dzeko, A. (Adelaida), Eapen, G. (George), Engemann, H. (Heiko), Ercole, A. (Ari), Esser, P. (Patrick), Ezer, E. (Erzsébet), Fabricius, M. (Martin), Feigin, V.L. (V.), Feng, J. (Junfeng), Foks, K. (Kelly), Fossi, F. (Francesca), Francony, G. (Gilles), Frantzén, J. (Janek), Freo, U. (Ulderico), Frisvold, S.K. (Shirin Kordasti), Furmanov, A. (Alex), Gagliardo, P. (Pablo), Galanaud, D. (Damien), Gao, G. (Guoyi), Geleijns, K. (Karin), Ghuysen, A. (Alexandre), Giraud, B. (Benoit), Glocker, B. (Ben), Gomez, P.A. (Pedro A.), Grossi, F. (Francesca), Gruen, R.L. (Russell), Gupta, D. (Deepak), Haagsma, J.A. (Juanita), Hadzic, E. (Ermin), Haitsma, I. (Iain), Hartings, J.A. (Jed), Helbok, R. (Raimund), Helseth, E. (Eirik), Hertle, D. (Daniel), Hill, S. (Sean), Hoedemaekers, A. (Astrid), Hoefer, S. (Stefan), Hutchinson, P.J. (Peter J.), Håberg, A.K. (Asta Kristine), Jacobs, B.C. (Bart), Janciak, I. (Ivan), Janssens, K. (Koen), Jiang, J.-Y. (Ji-Yao), Jones, K. (Kelly), Kalala, J.-P. (Jean-Pierre), Kamnitsas, K. (Konstantinos), Karan, M. (Mladen), Karau, J. (Jana), Katila, A. (Ari), Kaukonen, M. (Maija), Keeling, D. (David), Kerforne, T. (Thomas), Ketharanathan, N. (Naomi), Kettunen, J. (Johannes), Kivisaari, R. (Riku), Kolias, A.G. (Angelos G.), Kolumbán, B. (Bálint), Kompanje, E.J.O. (Erwin), Kondziella, D. (Daniel), Koskinen, L.-O. (Lars-Owe), Kovács, N. (Noémi), Kalovits, F. (Ferenc), Lagares, A. (Alfonso), Lanyon, L. (Linda), Laureys, S. (Steven), Lauritzen, M. (Martin), Lecky, F.E. (Fiona), Ledig, C. (Christian), Lefering, R., Legrand, V. (Valerie), Lei, J. (Jin), Levi, L. (Leon), Lightfoot, R. (Roger), Lingsma, H.F. (Hester), Loeckx, D. (Dirk), Lozano, A. (Angels), Luddington, R. (Roger), Luijten-Arts, C. (Chantal), MacDonald, S. (Stephen), MacFayden, C. (Charles), Maegele, M. (Marc), Majdan, M. (Marek), Major, S. (Sebastian), Manara, A. (Alex), Manhes, P. (Pauline), Manley, G. (Geoffrey), Martin, D. (Didier), Martino, C. (Costanza), Maruenda, A. (Armando), Maréchal, H. (Hugues), Mastelova, D. (Dagmara), Mattern, J. (Julia), McMahon, C. (Catherine), Melegh, B. (Béla), Menovsky, T. (Tomas), Morganti-Kossmann, C. (Cristina), Mulazzi, D. (Davide), Mutschler, M. (Manuel), Mühlan, H. (Holger), Negru, A. (Ancuta), Nelson, D. (David), Neugebauer, E. (Eddy), Newcombe, V.F. (Virginia F.), Noirhomme, Q. (Quentin), Nyirádi, J. (József), Oddo, M. (Mauro), Oldenbeuving, A. (Annemarie), Oresic, M. (Matej), Ortolano, F. (Fabrizio), Palotie, A. (Aarno), Parizel, P.M., Patruno, A. (Adriana), Payen, J.-F. (Jean-François), Perera, N. (Natascha), Perlbarg, V. (Vincent), Persona, P. (Paolo), Peul, W.C. (Wilco), Pichon, N. (Nicolas), Piilgaard, H. (Henning), Piippo, A. (Anna), Pili, F.S. (Floury Sébastien), Pirinen, M. (Matti), Ples, H. (Horia), Pomposo, I. (Inigo), Psota, M. (Marek), Pullens, P. (Pim), Puybasset, L. (Louis), Ragauskas, A. (Arminas), Raj, R. (Rahul), Rambadagalla, M. (Malinka), Rehorčíková, V. (Veronika), Rhodes, J.K.J. (Jonathan K.J.), Richardson, S. (Sylvia), Ripatti, S. (Samuli), Rocka, S. (Saulius), Rodier, N. (Nicolas), Roe, C. (Cecilie), Roise, O. (Olav), Roks, G. (Gerwin), Romegoux, P. (Pauline), Rosand, J. (Jonathan), Rosenfeld, J. (Jeffrey), Rosenlund, C. (Christina), Rosenthal, G. (Guy), Rossaint, R. (Rolf), Rossi, S. (Sandra), Rostalski, T. (Tim), Rueckert, D.L. (Danie L.), Ruiz De Arcaute, F. (Felix), Rusnák, M. (Martin), Sacchi, M. (Marco), Sahakian, B. (Barbara), Sahuquillo, J. (Juan), Sakowitz, O. (Oliver), Sala, F. (Francesca), Sanchez-Pena, P. (Paola), Sanchez-Porras, R. (Renan), Sandor, J. (Janos), Santos, E. (Edgar), Sasse, N. (Nadine), Sasu, L. (Luminita), Savo, D. (Davide), Schipper, I.B. (Inger), Schlößer, B. (Barbara), Schmidt, S. (Silke), Schneider, A. (Annette), Schoechl, H. (Herbert), Schoonman, G.G. (Guus), Schou, R. (Rico), Schwendenwein, E. (Elisabeth), Schöll, M. (Michael), Sir, O. (Özcan), Skandsen, T. (Toril), Smakman, L. (Lidwien), Smeets, D. (Dirk), Smielewski, P. (Peter), Sorinola, A. (Abayomi), Stamatakis, E.L. (Emmanue L.), Stanworth, S. (Simon), Stegemann, K. (Katrin), Steinbüchel, N. (Nicole), Stevens, R. (Robert), Stewart, W. (William), Stocchetti, N. (Nino), Sundström, N. (Nina), Synnot, A. (Anneliese), Szabó, J. (József), Söderberg, J. (Jeannette), Taccone, F.S. (Fabio), Tamás, V. (Viktória), Tanskanen, P. (Päivi), Tascu, A. (Alexandru), Taylor, M.S. (Mark Steven), Te Ao, B. (Braden), Tenovuo, O. (Olli), Teodorani, G. (Guido), Theadom, A. (Alice), Thomas, M. (Matt), Tibboel, D. (Dick), Tolias, C.M. (Christos M.), Tshibanda, J.-F.L. (Jean-Flory Luaba), Tudora, C.M. (Cristina Maria), Vajkoczy, P. (Peter), Valeinis, E. (Egils), Hecke, W. (Wim) van, Van Praag, D. (Dominique), Van Roost, D. (Dirk), Van Vlierberghe, E. (Eline), Vande Vyvere, T. (Thijs), Vanhaudenhuyse, A. (Audrey), Vargiolu, A. (Alessia), Vega, E. (Emmanuel), Verheyden, J. (Jan), Vespa, P.M. (Paul M.), Vik, A. (Anne), Vilcinis, R. (Rimantas), Vizzino, G. (Giacinta), Vleggeert-Lankamp, C.L.A.M. (Carmen), Volovici, V. (Victor), Vulekovic, P. (Peter), Vámos, Z. (Zoltán), Wade, D. (Derick), Wang, K.K.W. (Kevin K.W.), Wang, L. (Lei), Wildschut, E. (Eno), Williams, G. (Guy), Willumsen, L. (Lisette), Wilson, A. (Adam), Wilson, L. (Lindsay), Winkler, M.K.L. (Maren K. L.), Ylén, P. (Peter), Younsi, A. (Alexander), Zaaroor, M. (Menashe), Zhang, Z. (Zhiqun), Zheng, Z. (Zelong), Zumbo, F. (Fabrizio), De Lange, S. (Stefanie), De Ruiter, G.C.W. (Godard C.W.), Den Boogert, H. (Hugo), Van Dijck, J. (Jeroen), Essen, T.A. (T.) van, van Heugten, C.M. (Caroline M.), Jagt, M. (Mathieu) van der, Naalt, J. (Joukje) van der, Cnossen, M.C. (Maryse), Polinder, S. (Suzanne), Lingsma, H.F. (Hester F.), Maas, A.I.R. (Andrew), Menon, D.K. (David ), Steyerberg, E.W. (Ewout), Adams, H. (Hadie), Alessandro, M. (Masala), Allanson, J.E. (Judith), Amrein, K. (Krisztina), Andaluz, N. (Norberto), Andelic, N. (Nada), Andrea, N. (Nanni), Andreassen, L. (Lasse), Anke, A. (Audny), Antoni, A. (Anna), Ardon, H. (Hilko), Audibert, G. (Gérard), Auslands, K. (Kaspars), Azouvi, P. (Philippe), Baciu, C. (Camelia), Bacon, A. (Andrew), Badenes, R. (Rafael), Baglin, T. (Trevor), Bartels, R. (Ronald), Barzó, P. (Pál), Bauerfeind, U. (Ursula), Beer, R. (Ronny), Belda, F.J. (Francisco Javier), Bellander, B.-M. (Bo-Michael), Belli, A. (Antonio), Bellier, R. (Rémy), Benali, H. (Habib), Benard, T. (Thierry), Berardino, M. (Maurizio), Beretta, L. (Luigi), Beynon, C. (Christopher), Bilotta, F. (Federico), Binder, H. (Harald), Biqiri, E. (Erta), Blaabjerg, M. (Morten), Borgen, L.S. (Lund Stine), Bouzat, P. (Pierre), Bragge, P. (Peter), Brazinova, A. (Alexandra), Brehar, F. (Felix), Brorsson, C. (Camilla), Buki, A. (Andras), Bullinger, M. (Monika), Bučková, V. (Veronika), Calappi, E. (Emiliana), Cameron, P. (Peter), Carbayo, L.G. (Lozano Guillermo), Carise, E. (Elsa), Carpenter, C., Castaño-León, A.M. (Ana M.), Causin, F. (Francesco), Chevallard, G. (Giorgio), Chieregato, A. (Arturo), Citerio, G. (Giuseppe), Coburn, M. (Mark), Coles, J.P. (Jonathan P.), Cooper, J.D. (Jamie D.), Correia, M. (Marta), Covic, A. (Amra), Curry, N. (Nicola), Czeiter, E. (Endre), Czosnyka, M. (Marek), Dahyot-Fizelier, C. (Claire), Damas, F. (François), Damas, P. (Pierre), Dawes, H. (Helen), De Keyser, V. (Véronique), Della Corte, F. (Francesco), Depreitere, B. (Bart), Ding, S. (Shenghao), Dippel, D.W.J. (Diederik), Dizdarevic, K. (Kemal), Dulière, G.-L. (Guy-Loup), Dzeko, A. (Adelaida), Eapen, G. (George), Engemann, H. (Heiko), Ercole, A. (Ari), Esser, P. (Patrick), Ezer, E. (Erzsébet), Fabricius, M. (Martin), Feigin, V.L. (V.), Feng, J. (Junfeng), Foks, K. (Kelly), Fossi, F. (Francesca), Francony, G. (Gilles), Frantzén, J. (Janek), Freo, U. (Ulderico), Frisvold, S.K. (Shirin Kordasti), Furmanov, A. (Alex), Gagliardo, P. (Pablo), Galanaud, D. (Damien), Gao, G. (Guoyi), Geleijns, K. (Karin), Ghuysen, A. (Alexandre), Giraud, B. (Benoit), Glocker, B. (Ben), Gomez, P.A. (Pedro A.), Grossi, F. (Francesca), Gruen, R.L. (Russell), Gupta, D. (Deepak), Haagsma, J.A. (Juanita), Hadzic, E. (Ermin), Haitsma, I. (Iain), Hartings, J.A. (Jed), Helbok, R. (Raimund), Helseth, E. (Eirik), Hertle, D. (Daniel), Hill, S. (Sean), Hoedemaekers, A. (Astrid), Hoefer, S. (Stefan), Hutchinson, P.J. (Peter J.), Håberg, A.K. (Asta Kristine), Jacobs, B.C. (Bart), Janciak, I. (Ivan), Janssens, K. (Koen), Jiang, J.-Y. (Ji-Yao), Jones, K. (Kelly), Kalala, J.-P. (Jean-Pierre), Kamnitsas, K. (Konstantinos), Karan, M. (Mladen), Karau, J. (Jana), Katila, A. (Ari), Kaukonen, M. (Maija), Keeling, D. (David), Kerforne, T. (Thomas), Ketharanathan, N. (Naomi), Kettunen, J. (Johannes), Kivisaari, R. (Riku), Kolias, A.G. (Angelos G.), Kolumbán, B. (Bálint), Kompanje, E.J.O. (Erwin), Kondziella, D. (Daniel), Koskinen, L.-O. (Lars-Owe), Kovács, N. (Noémi), Kalovits, F. (Ferenc), Lagares, A. (Alfonso), Lanyon, L. (Linda), Laureys, S. (Steven), Lauritzen, M. (Martin), Lecky, F.E. (Fiona), Ledig, C. (Christian), Lefering, R., Legrand, V. (Valerie), Lei, J. (Jin), Levi, L. (Leon), Lightfoot, R. (Roger), Lingsma, H.F. (Hester), Loeckx, D. (Dirk), Lozano, A. (Angels), Luddington, R. (Roger), Luijten-Arts, C. (Chantal), MacDonald, S. (Stephen), MacFayden, C. (Charles), Maegele, M. (Marc), Majdan, M. (Marek), Major, S. (Sebastian), Manara, A. (Alex), Manhes, P. (Pauline), Manley, G. (Geoffrey), Martin, D. (Didier), Martino, C. (Costanza), Maruenda, A. (Armando), Maréchal, H. (Hugues), Mastelova, D. (Dagmara), Mattern, J. (Julia), McMahon, C. (Catherine), Melegh, B. (Béla), Menovsky, T. (Tomas), Morganti-Kossmann, C. (Cristina), Mulazzi, D. (Davide), Mutschler, M. (Manuel), Mühlan, H. (Holger), Negru, A. (Ancuta), Nelson, D. (David), Neugebauer, E. (Eddy), Newcombe, V.F. (Virginia F.), Noirhomme, Q. (Quentin), Nyirádi, J. (József), Oddo, M. (Mauro), Oldenbeuving, A. (Annemarie), Oresic, M. (Matej), Ortolano, F. (Fabrizio), Palotie, A. (Aarno), Parizel, P.M., Patruno, A. (Adriana), Payen, J.-F. (Jean-François), Perera, N. (Natascha), Perlbarg, V. (Vincent), Persona, P. (Paolo), Peul, W.C. (Wilco), Pichon, N. (Nicolas), Piilgaard, H. (Henning), Piippo, A. (Anna), Pili, F.S. (Floury Sébastien), Pirinen, M. (Matti), Ples, H. (Horia), Pomposo, I. (Inigo), Psota, M. (Marek), Pullens, P. (Pim), Puybasset, L. (Louis), Ragauskas, A. (Arminas), Raj, R. (Rahul), Rambadagalla, M. (Malinka), Rehorčíková, V. (Veronika), Rhodes, J.K.J. (Jonathan K.J.), Richardson, S. (Sylvia), Ripatti, S. (Samuli), Rocka, S. (Saulius), Rodier, N. (Nicolas), Roe, C. (Cecilie), Roise, O. (Olav), Roks, G. (Gerwin), Romegoux, P. (Pauline), Rosand, J. (Jonathan), Rosenfeld, J. (Jeffrey), Rosenlund, C. (Christina), Rosenthal, G. (Guy), Rossaint, R. (Rolf), Rossi, S. (Sandra), Rostalski, T. (Tim), Rueckert, D.L. (Danie L.), Ruiz De Arcaute, F. (Felix), Rusnák, M. (Martin), Sacchi, M. (Marco), Sahakian, B. (Barbara), Sahuquillo, J. (Juan), Sakowitz, O. (Oliver), Sala, F. (Francesca), Sanchez-Pena, P. (Paola), Sanchez-Porras, R. (Renan), Sandor, J. (Janos), Santos, E. (Edgar), Sasse, N. (Nadine), Sasu, L. (Luminita), Savo, D. (Davide), Schipper, I.B. (Inger), Schlößer, B. (Barbara), Schmidt, S. (Silke), Schneider, A. (Annette), Schoechl, H. (Herbert), Schoonman, G.G. (Guus), Schou, R. (Rico), Schwendenwein, E. (Elisabeth), Schöll, M. (Michael), Sir, O. (Özcan), Skandsen, T. (Toril), Smakman, L. (Lidwien), Smeets, D. (Dirk), Smielewski, P. (Peter), Sorinola, A. (Abayomi), Stamatakis, E.L. (Emmanue L.), Stanworth, S. (Simon), Stegemann, K. (Katrin), Steinbüchel, N. (Nicole), Stevens, R. (Robert), Stewart, W. (William), Stocchetti, N. (Nino), Sundström, N. (Nina), Synnot, A. (Anneliese), Szabó, J. (József), Söderberg, J. (Jeannette), Taccone, F.S. (Fabio), Tamás, V. (Viktória), Tanskanen, P. (Päivi), Tascu, A. (Alexandru), Taylor, M.S. (Mark Steven), Te Ao, B. (Braden), Tenovuo, O. (Olli), Teodorani, G. (Guido), Theadom, A. (Alice), Thomas, M. (Matt), Tibboel, D. (Dick), Tolias, C.M. (Christos M.), Tshibanda, J.-F.L. (Jean-Flory Luaba), Tudora, C.M. (Cristina Maria), Vajkoczy, P. (Peter), Valeinis, E. (Egils), Hecke, W. (Wim) van, Van Praag, D. (Dominique), Van Roost, D. (Dirk), Van Vlierberghe, E. (Eline), Vande Vyvere, T. (Thijs), Vanhaudenhuyse, A. (Audrey), Vargiolu, A. (Alessia), Vega, E. (Emmanuel), Verheyden, J. (Jan), Vespa, P.M. (Paul M.), Vik, A. (Anne), Vilcinis, R. (Rimantas), Vizzino, G. (Giacinta), Vleggeert-Lankamp, C.L.A.M. (Carmen), Volovici, V. (Victor), Vulekovic, P. (Peter), Vámos, Z. (Zoltán), Wade, D. (Derick), Wang, K.K.W. (Kevin K.W.), Wang, L. (Lei), Wildschut, E. (Eno), Williams, G. (Guy), Willumsen, L. (Lisette), Wilson, A. (Adam), Wilson, L. (Lindsay), Winkler, M.K.L. (Maren K. L.), Ylén, P. (Peter), Younsi, A. (Alexander), Zaaroor, M. (Menashe), Zhang, Z. (Zhiqun), Zheng, Z. (Zelong), Zumbo, F. (Fabrizio), De Lange, S. (Stefanie), De Ruiter, G.C.W. (Godard C.W.), Den Boogert, H. (Hugo), Van Dijck, J. (Jeroen), Essen, T.A. (T.) van, van Heugten, C.M. (Caroline M.), Jagt, M. (Mathieu) van der, and Naalt, J. (Joukje) van der
Abstract: Introduction: The strength of evidence underpinning care and treatment recommendations in traumatic brain injury (TBI) is low. Comparative effectiveness research (CER) has been proposed as a framework to provide evidence for optimal care for TBI patients. The first step in CER is to map the existing variation. The aim of current study is to quantify variation in general structural and process characteristics among centers participating in the Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study. Methods: We designed a set of 11 provider profiling questionnaires with 321 questions about various aspects of TBI care, chosen based on literature and expert opinion. After pilot testing, questionnaires were disseminated to 71 centers from 20 countries participating in the CENTER-TBI study. Reliability of questionnaires was estimated by calculating a concordance rate among 5% duplicate questions. Results: All 71 centers completed the questionnaires. Median concordance rate among duplicate questions was 0.85. The majority of centers were academic hospitals (n = 65, 92%), designated as a level I trauma center (n = 48, 68%) and situated in an urban location (n = 70, 99%). The availability of facilities for neuro-trauma care varied across centers; e.g. 40 (57%) had a dedicated neuro-intensive care unit (ICU), 36 (51%) had an in-hospital rehabilitation unit and the organization of the ICU was closed in 64% (n = 45) of the centers. In addition, we found wide variation in processes of care, such as the ICU admission policy and intracranial pressure monitoring policy among centers. Conclusion: Even among high-volume, specialized neurotrauma centers there is substantial variation in structures and processes of TBI care. This variation provides an opportunity to study effectiveness of specific aspects of TBI care and to identify best practices with CER approaches.
Published: 2016
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6. YIA5: Predictor of severity and long distance outcome of patients with critical illness myopathy and polyneuropathy

Author: Jelinek, A., primary, Horwitz, A., additional, Piilgaard, H., additional, Lauritzen, M., additional, and Benedek, K., additional
Published: 2014
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7. Increased 20-HETE Synthesis Explains Reduced Cerebral Blood Flow But Not Impaired Neurovascular Coupling after Cortical Spreading Depression in Rat Cerebral Cortex

Author: Fordsmann, J. C., primary, Ko, R. W. Y., additional, Choi, H. B., additional, Thomsen, K., additional, Witgen, B. M., additional, Mathiesen, C., additional, Lonstrup, M., additional, Piilgaard, H., additional, MacVicar, B. A., additional, and Lauritzen, M., additional
Published: 2013
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8. Variation in monitoring and treatment policies for intracranial hypertension in traumatic brain injury

Author: Cnossen, Maryse C., Huijben, Jilske A., van der Jagt, Mathieu, Volovici, Victor, van Essen, Thomas, Polinder, Suzanne, Nelson, David, Ercole, Ari, Stocchetti, Nino, Citerio, Giuseppe, Peul, Wilco C., Maas, Andrew I. R., Menon, David, Steyerberg, Ewout W., Lingsma, Hester F., Adams, Hadie, Alessandro, Masala, Allanson, Judith, Amrein, Krisztina, Andaluz, Norberto, Andelic, Nada, Andrea, Nanni, Andreassen, Lasse, Anke, Audny, Antoni, Anna, Ardon, Hilko, Audibert, Gérard, Auslands, Kaspars, Azouvi, Philippe, Baciu, Camelia, Bacon, Andrew, Badenes, Rafael, Baglin, Trevor, Bartels, Ronald, Barzó, Pál, Bauerfeind, Ursula, Beer, Ronny, Belda, Francisco Javier, Bellander, Bo-Michael, Belli, Antonio, Bellier, Rémy, Benali, Habib, Benard, Thierry, Berardino, Maurizio, Beretta, Luigi, Beynon, Christopher, Bilotta, Federico, Binder, Harald, Biqiri, Erta, Blaabjerg, Morten, Lund, Stine Borgen, Bouzat, Pierre, Bragge, Peter, Brazinova, Alexandra, Brehar, Felix, Brorsson, Camilla, Buki, Andras, Bullinger, Monika, Bucková, Veronika, Calappi, Emiliana, Cameron, Peter, Carbayo, Lozano Guillermo, Carise, Elsa, Carpenter, Keri, Castaño-León, Ana M., Causin, Francesco, Chevallard, Giorgio, Chieregato, Arturo, Cooper, M., Coburn, Mark, Coles, Jonathan, Cooper, Jamie D., Correia, Marta, Covic, Amra, Curry, Nicola, Czeiter, Endre, Czosnyka, Marek, Dahyot-Fizelier, Claire, Damas, François, Damas, Pierre, Dawes, Helen, De Keyser, Véronique, Corte, Francesco Della, Depreitere, Bart, Ding, Shenghao, Dippel, Diederik, Dizdarevic, Kemal, Dulière, Guy-Loup, Dzeko, Adelaida, Eapen, George, Engemann, Heiko, Esser, Patrick, Ezer, Erzsébet, Fabricius, Martin, Feigin, Valery L., Feng, Junfeng, Foks, Kelly, Fossi, Francesca, Francony, Gilles, Frantzén, Janek, Freo, Ulderico, Frisvold, Shirin, Furmanov, Alex, Gagliardo, Pablo, Galanaud, Damien, Gao, Guoyi, Geleijns, Karin, Ghuysen, Alexandre, Giraud, Benoit, Glocker, Ben, Gomez, Pedro A., Grossi, Francesca, Gruen, Russell L., Gupta, Deepak, Haagsma, Juanita A., Hadzic, Ermin, Haitsma, Iain, Hartings, Jed A., Helbok, Raimund, Helseth, Eirik, Hertle, Daniel, Hill, Sean, Hoedemaekers, Astrid, Hoefer, Stefan, Hutchinson, Peter J., Håberg, Kristine Asta, Jacobs, Bram, Janciak, Ivan, Janssens, Koen, Jiang, Ji-Yao, Jones, Kelly, Kalala, Jean-Pierre, Kamnitsas, Konstantinos, Karan, Mladen, Karau, Jana, Katila, Ari, Kaukonen, Maija, Keeling, David, Kerforne, Thomas, Ketharanathan, Naomi, Kettunen, Johannes, Kivisaari, Riku, Kolias, Angelos G., Kolumbán, Bálint, Kompanje, Erwin, Kondziella, Daniel, Koskinen, Lars-Owe, Kovács, Noémi, Kálovits, Ferenc, Lagares, Alfonso, Lanyon, Linda, Laureys, Steven, Lauritzen, Martin, Lecky, Fiona, Ledig, Christian, Lefering, Rolf, Legrand, Valerie, Lei, Jin, Levi, Leon, Lightfoot, Roger, Loeckx, Dirk, Lozano, Angels, Luddington, Roger, Luijten-Arts, Chantal, Macdonald, Stephen, Macfayden, Charles, Maegele, Marc, Majdan, Marek, Major, Sebastian, Manara, Alex, Manhes, Pauline, Manley, Geoffrey, Martin, Didier, Martino, Costanza, Maruenda, Armando, Maréchal, Hugues, Mastelova, Dagmara, Mattern, Julia, Mcmahon, Catherine, Melegh, Béla, Menovsky, Tomas, Morganti-Kossmann, Cristina, Mulazzi, Davide, Mutschler, Manuel, Mühlan, Holger, Negru, Ancuta, Neugebauer, Eddy, Newcombe, Virginia, Noirhomme, Quentin, Nyirádi, József, Oddo, Mauro, Oldenbeuving, Annemarie, Oresic, Matej, Ortolano, Fabrizio, Palotie, Aarno, Parizel, Paul M., Patruno, Adriana, Payen, Jean-François, Perera, Natascha, Perlbarg, Vincent, Persona, Paolo, Pichon, Nicolas, Piilgaard, Henning, Piippo, Anna, Floury, Sébastien Pili, Pirinen, Matti, Ples, Horia, Pomposo, Inigo, Psota, Marek, Pullens, Pim, Puybasset, Louis, Ragauskas, Arminas, Raj, Rahul, Rambadagalla, Malinka, Rehorcíková, Veronika, Rhodes, Jonathan, Richardson, Sylvia, Ripatti, Samuli, Rocka, Saulius, Rodier, Nicolas, Roe, Cecilie, Roise, Olav, Roks, Gerwin, Romegoux, Pauline, Rosand, Jonathan, Rosenfeld, Jeffrey, Rosenlund, Christina, Rosenthal, Guy, Rossaint, Rolf, Rossi, Sandra, Rostalski, Tim, Rueckert, Daniel, de Ruiz, Arcaute Felix, Rusnák, Martin, Sacchi, Marco, Sahakian, Barbara, Sahuquillo, Juan, Sakowitz, Oliver, Sala, Francesca, Sanchez-Pena, Paola, Sanchez-Porras, Renan, Sandor, Janos, Santos, Edgar, Sasse, Nadine, Sasu, Luminita, Savo, Davide, Schipper, Inger, Schlößer, Barbara, Schmidt, Silke, Schneider, Annette, Schoechl, Herbert, Schoonman, Guus, Rico, Frederik Schou, Schwendenwein, Elisabeth, Schöll, Michael, Sir, Özcan, Skandsen, Toril, Smakman, Lidwien, Smeets, Dirk, Smielewski, Peter, Sorinola, Abayomi, Stamatakis, Emmanuel, Stanworth, Simon, Stegemann, Katrin, Steinbüchel, Nicole, Stevens, Robert, Stewart, William, Sundström, Nina, Synnot, Anneliese, Szabó, József, Söderberg, Jeannette, Taccone, Fabio Silvio, Tamás, Viktória, Tanskanen, Päivi, Tascu, Alexandru, Taylor, Mark Steven, Ao Braden, Te, Tenovuo, Olli, Teodorani, Guido, Theadom, Alice, Thomas, Matt, Tibboel, Dick, Tolias, Christos, Tshibanda, Jean-Flory Luaba, Tudora, Cristina Maria, Vajkoczy, Peter, Valeinis, Egils, Hecke, Wim Van, Praag, Dominique Van, Dirk, Van Roost, Vlierberghe, Eline Van, Vyvere, Thijs vande, Vanhaudenhuyse, Audrey, Vargiolu, Alessia, Vega, Emmanuel, Verheyden, Jan, Vespa, Paul M., Vik, Anne, Vilcinis, Rimantas, Vizzino, Giacinta, Vleggeert-Lankamp, Carmen, Vulekovic, Peter, Vámos, Zoltán, Wade, Derick, Wang, Kevin K. W., Wang, Lei, Wildschut, Eno, Williams, Guy, Willumsen, Lisette, Wilson, Adam, Wilson, Lindsay, Winkler, Maren K. L., Ylén, Peter, Younsi, Alexander, Zaaroor, Menashe, Zhang, Zhiqun, Zheng, Zelong, Zumbo, Fabrizio, de Lange, Stefanie, de Ruiter, Godard C. W., den Boogert, Hugo, van Dijck, Jeroen, van Heugten, Caroline, van der Naalt, Joukje, Cnossen, Maryse C., Huijben, Jilske A., Van der Jagt, Mathieu, Volovici, Victor, Van Essen, Thoma, Polinder, Suzanne, Nelson, David, Ercole, Ari, Stocchetti, Nino, Citerio, Giuseppe, Peul, Wilco C., Maas, Andrew I. R., Menon, David, Steyerberg, Ewout W., Lingsma, Hester F., on behalf of the CENTER-TBI, Investigator, Beretta, Luigi, Cnossen, M, Huijben, J, van der Jagt, M, Volovici, V, van Essen, T, Polinder, S, Nelson, D, Ercole, A, Stocchetti, N, Citerio, G, Peul, W, Maas, A, Menon, D, Steyerberg, E, Lingsma, H, Molecular Neuroscience and Ageing Research (MOLAR), Psychiatrie & Neuropsychologie, RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, Commission of the European Communities, CENTER-TBI Investigators, Medical Informatics, Public and occupational health, Ragauskas, Arminas, Ročka, Saulius, Vilcinis, Rimantas, Public Health, Intensive Care, Neurosurgery, CENTER-TBI investigators, Adams, H., Alessandro, M., Allanson, J., Amrein, K., Andaluz, N., Andelic, N., Andrea, N., Andreassen, L., Anke, A., Antoni, A., Ardon, H., Audibert, G., Auslands, K., Azouvi, P., Baciu, C., Bacon, A., Badenes, R., Baglin, T., Bartels, R., Barzó, P., Bauerfeind, U., Beer, R., Belda, F.J., Bellander, B.M., Belli, A., Bellier, R., Benali, H., Benard, T., Berardino, M., Beretta, L., Beynon, C., Bilotta, F., Binder, H., Biqiri, E., Blaabjerg, M., Borgen, L.S., Bouzat, P., Bragge, P., Brazinova, A., Brehar, F., Brorsson, C., Buki, A., Bullinger, M., Bučková, V., Calappi, E., Cameron, P., Lozano, G.C., Carise, E., Carpenter, K., Castaño-León, A.M., Causin, F., Chevallard, G., Chieregato, A., Citerio, G., Cnossen, M., Coburn, M., Coles, J., Cooper, J.D., Correia, M., Covic, A., Curry, N., Czeiter, E., Czosnyka, M., Dahyot-Fizelier, C., Damas, F., Damas, P., Dawes, H., De Keyser, V., Corte, F.D., Depreitere, B., Ding, S., Dippel, D., Dizdarevic, K., Dulière, G.L., Dzeko, A., Eapen, G., Engemann, H., Ercole, A., Esser, P., Ezer, E., Fabricius, M., Feigin, V.L., Feng, J., Foks, K., Fossi, F., Francony, G., Frantzén, J., Freo, U., Frisvold, S., Furmanov, A., Gagliardo, P., Galanaud, D., Gao, G., Geleijns, K., Ghuysen, A., Giraud, B., Glocker, B., Gomez, P.A., Grossi, F., Gruen, R.L., Gupta, D., Haagsma, J.A., Hadzic, E., Haitsma, I., Hartings, J.A., Helbok, R., Helseth, E., Hertle, D., Hill, S., Hoedemaekers, A., Hoefer, S., Hutchinson, P.J., Håberg, A.K., Jacobs, B., Janciak, I., Janssens, K., Jiang, J.Y., Jones, K., Kalala, J.P., Kamnitsas, K., Karan, M., Karau, J., Katila, A., Kaukonen, M., Keeling, D., Kerforne, T., Ketharanathan, N., Kettunen, J., Kivisaari, R., Kolias, A.G., Kolumbán, B., Kompanje, E., Kondziella, D., Koskinen, L.O., Kovács, N., Kálovits, F., Lagares, A., Lanyon, L., Laureys, S., Lauritzen, M., Lecky, F., Ledig, C., Lefering, R., Legrand, V., Lei, J., Levi, L., Lightfoot, R., Lingsma, H., Loeckx, D., Lozano, A., Luddington, R., Luijten-Arts, C., Andrew, IRM, MacDonald, S., MacFayden, C., Maegele, M., Majdan, M., Major, S., Manara, A., Manhes, P., Manley, G., Martin, D., Martino, C., Maruenda, A., Maréchal, H., Mastelova, D., Mattern, J., McMahon, C., Melegh, B., Menon, D., Menovsky, T., Morganti-Kossmann, C., Mulazzi, D., Mutschler, M., Mühlan, H., Negru, A., Nelson, D., Neugebauer, E., Newcombe, V., Noirhomme, Q., Nyirádi, J., Oddo, M., Oldenbeuving, A., Oresic, M., Ortolano, F., Palotie, A., Parizel, P.M., Patruno, A., Payen, J.F., Perera, N., Perlbarg, V., Persona, P., Peul, W., Pichon, N., Piilgaard, H., Piippo, A., Floury, S.P., Pirinen, M., Ples, H., Polinder, S., Pomposo, I., Psota, M., Pullens, P., Puybasset, L., Ragauskas, A., Raj, R., Rambadagalla, M., Rehorčíková, V., Rhodes, J., Richardson, S., Ripatti, S., Rocka, S., Rodier, N., Roe, C., Roise, O., Roks, G., Romegoux, P., Rosand, J., Rosenfeld, J., Rosenlund, C., Rosenthal, G., Rossaint, R., Rossi, S., Rostalski, T., Rueckert, D., de Arcaute, F.R., Rusnák, M., Sacchi, M., Sahakian, B., Sahuquillo, J., Sakowitz, O., Sala, F., Sanchez-Pena, P., Sanchez-Porras, R., Sandor, J., Santos, E., Sasse, N., Sasu, L., Savo, D., Schipper, I., Schlößer, B., Schmidt, S., Schneider, A., Schoechl, H., Schoonman, G., Schou, R.F., Schwendenwein, E., Schöll, M., Sir, Ö., Skandsen, T., Smakman, L., Smeets, D., Smielewski, P., Sorinola, A., Stamatakis, E., Stanworth, S., Stegemann, K., Steinbüchel, N., Stevens, R., Stewart, W., Steyerberg, E.W., Stocchetti, N., Sundström, N., Synnot, A., Szabó, J., Söderberg, J., Taccone, F.S., Tamás, V., Tanskanen, P., Tascu, A., Taylor, M.S., Te Ao, B., Tenovuo, O., Teodorani, G., Theadom, A., Thomas, M., Tibboel, D., Tolias, C., Tshibanda, J.L., Tudora, C.M., Vajkoczy, P., Valeinis, E., Van Hecke, W., Van Praag, D., Van Roost, D., Van Vlierberghe, E., Vyvere, T.V., Vanhaudenhuyse, A., Vargiolu, A., Vega, E., Verheyden, J., Vespa, P.M., Vik, A., Vilcinis, R., Vizzino, G., Vleggeert-Lankamp, C., Volovici, V., Vulekovic, P., Vámos, Z., Wade, D., Wang, KKW, Wang, L., Wildschut, E., Williams, G., Willumsen, L., Wilson, A., Wilson, L., Winkler, MKL, Ylén, P., Younsi, A., Zaaroor, M., Zhang, Z., Zheng, Z., Zumbo, F., de Lange, S., de Ruiter, GCW, den Boogert, H., van Dijck, J., van Essen, T.A., van Heugten, C., van der Jagt, M., van der Naalt, J., Rocka, Saulius, „Springer' grupė, Apollo - University of Cambridge Repository, Centre of Excellence in Complex Disease Genetics, Department of Mathematics and Statistics, Institute for Molecular Medicine Finland, Biostatistics Helsinki, Aarno Palotie / Principal Investigator, University of Helsinki, Neurokirurgian yksikkö, Clinicum, Samuli Olli Ripatti / Principal Investigator, Complex Disease Genetics, Genomics of Neurological and Neuropsychiatric Disorders, and Statistical and population genetics
Subjects: Neurology, Letter, IMPACT, Critical Care and Intensive Care Medicine, Intracranial hypertension, 0302 clinical medicine, Traumatic brain injury, Clinical Protocols, Trauma Centers, Surveys and Questionnaires, Brain Injuries, Traumatic, Medicine and Health Sciences, Longitudinal Studies, Prospective Studies, Prospective cohort study, Comparative effectiveness research, Survey, Comparative, effectiveness research, Intracranial pressure, Response rate (survey), Medicine (all), Head injury, lcsh:Medical emergencies. Critical care. Intensive care. First aid, 11 Medical And Health Sciences, Orvostudományok, 3. Good health, Europe, Neurosurgery, medicine.medical_specialty, Critical Care, Other Research Radboud Institute for Molecular Life Sciences [Radboudumc 0], PRESSURE, Klinikai orvostudományok, Healthcare improvement science Radboud Institute for Health Sciences [Radboudumc 18], 03 medical and health sciences, ICP, ICU, medicine, MANAGEMENT, Humans, Monitoring, Physiologic, business.industry, MORTALITY, Research, 3112 Neurosciences, HEAD-INJURY, 030208 emergency & critical care medicine, lcsh:RC86-88.9, CARE, medicine.disease, Emergency & Critical Care Medicine, nervous system diseases, traumatic brain injury, comparative effectiveness research, survey, Emergency medicine, Physical therapy, Dentistry (all), MODERATE, Human medicine, business, 030217 neurology & neurosurgery, EUROPEAN-BRAIN
Abstract: Background No definitive evidence exists on how intracranial hypertension should be treated in patients with traumatic brain injury (TBI). It is therefore likely that centers and practitioners individually balance potential benefits and risks of different intracranial pressure (ICP) management strategies, resulting in practice variation. The aim of this study was to examine variation in monitoring and treatment policies for intracranial hypertension in patients with TBI. Methods A 29-item survey on ICP monitoring and treatment was developed on the basis of literature and expert opinion, and it was pilot-tested in 16 centers. The questionnaire was sent to 68 neurotrauma centers participating in the Collaborative European Neurotrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) study. Results The survey was completed by 66 centers (97% response rate). Centers were mainly academic hospitals (n = 60, 91%) and designated level I trauma centers (n = 44, 67%). The Brain Trauma Foundation guidelines were used in 49 (74%) centers. Approximately 90% of the participants (n = 58) indicated placing an ICP monitor in patients with severe TBI and computed tomographic abnormalities. There was no consensus on other indications or on peri-insertion precautions. We found wide variation in the use of first- and second-tier treatments for elevated ICP. Approximately half of the centers were classified as using a relatively aggressive approach to ICP monitoring and treatment (n = 32, 48%), whereas the others were considered more conservative (n = 34, 52%). Conclusions Substantial variation was found regarding monitoring and treatment policies in patients with TBI and intracranial hypertension. The results of this survey indicate a lack of consensus between European neurotrauma centers and provide an opportunity and necessity for comparative effectiveness research. Electronic supplementary material The online version of this article (doi:10.1186/s13054-017-1816-9) contains supplementary material, which is available to authorized users.
Published: 2017

9. Multi-modal assessment of neurovascular coupling during cerebral ischaemia and reperfusion using remote middle cerebral artery occlusion.

Author: Sutherland BA, Fordsmann JC, Martin C, Neuhaus AA, Witgen BM, Piilgaard H, Lønstrup M, Couch Y, Sibson NR, Lauritzen M, and Buchan AM
Subjects: Animals, Blood Flow Velocity drug effects, Blood Flow Velocity physiology, Disease Models, Animal, Electric Stimulation, Infarction, Middle Cerebral Artery diagnostic imaging, Male, Neurovascular Coupling drug effects, Rats, Wistar, Reperfusion Injury diagnostic imaging, Tissue Plasminogen Activator administration & dosage, Infarction, Middle Cerebral Artery physiopathology, Multimodal Imaging, Neurovascular Coupling physiology, Reperfusion Injury physiopathology
Abstract: Hyperacute changes in cerebral blood flow during cerebral ischaemia and reperfusion are important determinants of injury. Cerebral blood flow is regulated by neurovascular coupling, and disruption of neurovascular coupling contributes to brain plasticity and repair problems. However, it is unknown how neurovascular coupling is affected hyperacutely during cerebral ischaemia and reperfusion. We have developed a remote middle cerebral artery occlusion model in the rat, which enables multi-modal assessment of neurovascular coupling immediately prior to, during and immediately following reperfusion. Male Wistar rats were subjected to remote middle cerebral artery occlusion, where a long filament was advanced intraluminally through a guide cannula in the common carotid artery. Transcallosal stimulation evoked increases in blood flow, tissue oxygenation and neuronal activity, which were diminished by middle cerebral artery occlusion and partially restored during reperfusion. These evoked responses were not affected by administration of the thrombolytic alteplase at clinically used doses. Evoked cerebral blood flow responses were fully restored at 24 h post-middle cerebral artery occlusion indicating that neurovascular dysfunction was not sustained. These data show for the first time that the rat remote middle cerebral artery occlusion model coupled with transcallosal stimulation provides a novel method for continuous assessment of hyperacute neurovascular coupling changes during ischaemia and reperfusion, and offers unique insight into hyperacute ischaemic pathophysiology.
Published: 2017
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10. Recording, analysis, and interpretation of spreading depolarizations in neurointensive care: Review and recommendations of the COSBID research group.

Author: Dreier JP, Fabricius M, Ayata C, Sakowitz OW, Shuttleworth CW, Dohmen C, Graf R, Vajkoczy P, Helbok R, Suzuki M, Schiefecker AJ, Major S, Winkler MK, Kang EJ, Milakara D, Oliveira-Ferreira AI, Reiffurth C, Revankar GS, Sugimoto K, Dengler NF, Hecht N, Foreman B, Feyen B, Kondziella D, Friberg CK, Piilgaard H, Rosenthal ES, Westover MB, Maslarova A, Santos E, Hertle D, Sánchez-Porras R, Jewell SL, Balança B, Platz J, Hinzman JM, Lückl J, Schoknecht K, Schöll M, Drenckhahn C, Feuerstein D, Eriksen N, Horst V, Bretz JS, Jahnke P, Scheel M, Bohner G, Rostrup E, Pakkenberg B, Heinemann U, Claassen J, Carlson AP, Kowoll CM, Lublinsky S, Chassidim Y, Shelef I, Friedman A, Brinker G, Reiner M, Kirov SA, Andrew RD, Farkas E, Güresir E, Vatter H, Chung LS, Brennan KC, Lieutaud T, Marinesco S, Maas AI, Sahuquillo J, Dahlem MA, Richter F, Herreras O, Boutelle MG, Okonkwo DO, Bullock MR, Witte OW, Martus P, van den Maagdenberg AM, Ferrari MD, Dijkhuizen RM, Shutter LA, Andaluz N, Schulte AP, MacVicar B, Watanabe T, Woitzik J, Lauritzen M, Strong AJ, and Hartings JA
Subjects: Brain Injuries diagnosis, Brain Injuries therapy, Cerebrovascular Circulation, Electrocorticography, Humans, Practice Guidelines as Topic, Stroke diagnosis, Stroke therapy, Brain Injuries physiopathology, Cortical Spreading Depression physiology, Critical Care methods, Gray Matter physiopathology, Neurophysiological Monitoring methods, Stroke physiopathology
Abstract: Spreading depolarizations (SD) are waves of abrupt, near-complete breakdown of neuronal transmembrane ion gradients, are the largest possible pathophysiologic disruption of viable cerebral gray matter, and are a crucial mechanism of lesion development. Spreading depolarizations are increasingly recorded during multimodal neuromonitoring in neurocritical care as a causal biomarker providing a diagnostic summary measure of metabolic failure and excitotoxic injury. Focal ischemia causes spreading depolarization within minutes. Further spreading depolarizations arise for hours to days due to energy supply-demand mismatch in viable tissue. Spreading depolarizations exacerbate neuronal injury through prolonged ionic breakdown and spreading depolarization-related hypoperfusion (spreading ischemia). Local duration of the depolarization indicates local tissue energy status and risk of injury. Regional electrocorticographic monitoring affords even remote detection of injury because spreading depolarizations propagate widely from ischemic or metabolically stressed zones; characteristic patterns, including temporal clusters of spreading depolarizations and persistent depression of spontaneous cortical activity, can be recognized and quantified. Here, we describe the experimental basis for interpreting these patterns and illustrate their translation to human disease. We further provide consensus recommendations for electrocorticographic methods to record, classify, and score spreading depolarizations and associated spreading depressions. These methods offer distinct advantages over other neuromonitoring modalities and allow for future refinement through less invasive and more automated approaches.
Published: 2017
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11. Neocortical gamma oscillations in idiopathic generalized epilepsy.

Author: Benedek K, Berényi A, Gombkötő P, Piilgaard H, and Lauritzen M
Subjects: Adolescent, Anticonvulsants therapeutic use, Brain Mapping, Case-Control Studies, Child, Child, Preschool, Electroencephalography, Epilepsy, Generalized drug therapy, Female, Gamma Rhythm drug effects, Humans, Male, Retrospective Studies, Epilepsy, Generalized pathology, Gamma Rhythm physiology, Neocortex physiopathology
Abstract: Objective: Absence seizures in patients with idiopathic generalized epilepsy (IGE) may in part be explained by a decrease in phasic GABAA (type-A γ-aminobutyric acid) receptor function, but the mechanisms are only partly understood. Here we studied the relation between ictal and interictal spike-wave discharges (SWDs) and electroencephalography (EEG) gamma oscillatory activity (30-60 Hz) in patients with IGE., Methods: EEG recordings were obtained of 14 children with IGE (mean age, 8.5 ± 5 years) and 14 age- and sex-matched controls. Time-frequency analysis of each seizure and seizure-free control epochs was performed and cross-coherences of neocortical gamma oscillations were calculated to describe interictal and ictal characteristics of generalized seizures., Results: SWDs were characterized with an abrupt increase of oscillatory activity of 3-4 and 13-60 Hz, peaking at 3-4 and 30-60 Hz, and with a simultaneous decrease in the 8-12 Hz frequency band. The rise in EEG gamma oscillations was short-lasting and decreased before activity declined at lower frequency ranges. Compared to control patients, patients with epilepsy also showed higher interictal values of mean coherence of gamma activity, but this interictal increase was not significant after post hoc analysis., Significance: Our data support the hypothesis that gamma oscillatory activity increase concomitantly with rises in activity of lower EEG frequencies during absence seizures and that the activity starts to cease earlier than lower EEG frequencies. The data did not support a change in gamma activity preceding the 3-4 Hz SWDs. SWDs are hypothetically generated by the synchronous interaction between the thalamus and the cortex, whereas the production of gamma activity is the result of activity in local inhibitory networks. Thus, the modification of SWD by gamma activity may be understood in terms of the cellular and synaptic mechanisms involved., (Wiley Periodicals, Inc. © 2016 International League Against Epilepsy.)
Published: 2016
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12. Cyclosporine A, FK506, and NIM811 ameliorate prolonged CBF reduction and impaired neurovascular coupling after cortical spreading depression.

Author: Piilgaard H, Witgen BM, Rasmussen P, and Lauritzen M
Subjects: 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid therapeutic use, Animals, Brain blood supply, Brain metabolism, Brain physiopathology, Brain Injuries metabolism, Brain Injuries physiopathology, Male, Oxygen metabolism, Rats, Rats, Wistar, Vasoconstrictor Agents therapeutic use, Brain Injuries drug therapy, Cerebrovascular Circulation drug effects, Cortical Spreading Depression drug effects, Cyclosporine therapeutic use, Enzyme Inhibitors therapeutic use, Immunosuppressive Agents therapeutic use, Tacrolimus therapeutic use
Abstract: Cortical spreading depression (CSD) is associated with mitochondrial depolarization, increasing intracellular Ca(2+), and the release of free fatty acids, which favor opening of the mitochondrial permeability transition pore (mPTP) and activation of calcineurin (CaN). Here, we test the hypothesis that cyclosporine A (CsA), which blocks both mPTP and CaN, ameliorates the persistent reduction of cerebral blood flow (CBF), impaired vascular reactivity, and a persistent rise in the cerebral metabolic rate of oxygen (CMRO(2)) following CSD. In addition to CsA, we used the specific mPTP blocker NIM811 and the specific CaN blocker FK506. Cortical spreading depression was induced in rat frontal cortex. Electrocortical activity was recorded by glass microelectrodes, CBF by laser Doppler flowmetry, and tissue oxygen tension with polarographic microelectrodes. Electrocortical activity, basal CBF, CMRO(2), and neurovascular and neurometabolic coupling were unaffected by all three drugs under control conditions. NIM811 augmented the rise in CBF observed during CSD. Cyclosporine A and FK506 ameliorated the persistent decrease in CBF after CSD. All three drugs prevented disruption of neurovascular coupling after CSD; the rise in CMRO(2) was unchanged. Our data suggest that blockade of mPTP formation and CaN activation may prevent persistent CBF reduction and vascular dysfunction after CSD.
Published: 2011
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13. Principal cell spiking, postsynaptic excitation, and oxygen consumption in the rat cerebellar cortex.

Author: Thomsen K, Piilgaard H, Gjedde A, Bonvento G, and Lauritzen M
Subjects: 6-Cyano-7-nitroquinoxaline-2,3-dione pharmacology, Analysis of Variance, Animals, Bicuculline pharmacology, Biophysics, Carbon Isotopes metabolism, Cerebellar Cortex blood supply, Deoxyglucose metabolism, Dizocilpine Maleate pharmacology, Electric Stimulation methods, Excitatory Amino Acid Antagonists pharmacology, Excitatory Postsynaptic Potentials drug effects, GABA Antagonists pharmacology, Laser-Doppler Flowmetry methods, Male, Nerve Fibers physiology, Neural Pathways physiology, Oxygen Consumption drug effects, Rats, Rats, Wistar, Regional Blood Flow drug effects, Sodium Channel Blockers pharmacology, Tetrodotoxin pharmacology, Action Potentials physiology, Cerebellar Cortex cytology, Excitatory Postsynaptic Potentials physiology, Oxygen Consumption physiology, Purkinje Cells physiology
Abstract: One contention within the field of neuroimaging concerns the character of the depicted activity: Does it represent neuronal action potential generation (i.e., spiking) or postsynaptic excitation? This question is related to the metabolic costs of different aspects of neurosignaling. The cerebellar cortex is well suited for addressing this problem because synaptic input to and spiking of the principal cell, the Purkinje cell (PC), are spatially segregated. Also, PCs are pacemakers, able to generate spikes endogenously. We examined the contributions to cerebellar cortical oxygen consumption (CMRO2) of postsynaptic excitation and PC spiking during evoked and ongoing neuronal activity in the rat. By inhibiting excitatory synaptic input using ionotropic glutamate receptor blockers, we found that the increase in CMRO2 evoked by parallel fiber (PF) stimulation depended entirely on postsynaptic excitation. In contrast, PC spiking was largely responsible for the increase in CMRO2 when ongoing neuronal activity was increased by gamma-aminobutyric acid type A receptor blockade. In this case, CMRO2 increased equally during PC spiking with excitatory synaptic activity as during PC pacemaker spiking without excitatory synaptic input. Subsequent inhibition of action potential propagation and neurotransmission by blocking voltage-gated Na+-channels eliminated the increases in CMRO2 due to PF stimulation and increased PC spiking, but left a large fraction of CMRO2, i.e., basal CMRO2, intact. In conclusion, whereas basal CMRO2 in anesthetized animals did not seem to be related to neurosignaling, increases in CMRO2 could be induced by all aspects of neurosignaling. Our findings imply that CMRO2 responses cannot a priori be assigned to specific neuronal activities.
Published: 2009
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14. Persistent increase in oxygen consumption and impaired neurovascular coupling after spreading depression in rat neocortex.

Author: Piilgaard H and Lauritzen M
Subjects: Animals, Electrophysiology, Humans, Hypoxia physiopathology, Male, Rats, Rats, Wistar, Regional Blood Flow, Synaptic Transmission physiology, Cerebral Cortex physiology, Cerebrovascular Circulation physiology, Cortical Spreading Depression physiology, Oxygen Consumption physiology
Abstract: Cortical spreading depression (CSD) is associated with a dramatic failure of brain ion homeostasis and increased energy metabolism. There is strong clinical and experimental evidence to suggest that CSD is the mechanism of migraine, and involved in progressive neuronal injury in stroke and head trauma. Here we tested the hypothesis that single episodes of CSD induced acute hypoxia, and prolonged impairment of neurovascular and neurometabolic coupling. Cortical spreading depression was induced in rat frontal cortex, whereas cortical electrical activity and local field potentials (LFPs) were recorded by glass microelectrodes, cerebral blood flow (CBF) by laser-Doppler flowmetry, and tissue oxygen tension (tpO(2)) with polarographic microelectrodes. Cortical spreading depression increased cerebral metabolic rate of oxygen (CMRO(2)) by 71%+/-6.7% and CBF by 238%+/-48.1% for 1 to 2 mins. For the following 2 h, basal tpO(2) and CBF were reduced whereas basal CMRO(2) was persistently elevated by 8.1%+/-2.9%. In addition, within first hour after CSD we found impaired neurovascular coupling (LFP versus CBF), whereas neurometabolic coupling (LFP versus CMRO(2)) remained unaffected. Impaired neurovascular coupling was explained by both reduced vascular reactivity and suppressed function of cortical inhibitory interneurons. The protracted effects of CSD on basal CMRO(2) and neurovascular coupling may contribute to cellular dysfunction in patients with migraine and acutely injured cerebral cortex.
Published: 2009
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15. Pathway-specific variations in neurovascular and neurometabolic coupling in rat primary somatosensory cortex.

Author: Enager P, Piilgaard H, Offenhauser N, Kocharyan A, Fernandes P, Hamel E, and Lauritzen M
Subjects: Animals, Electric Stimulation, Evoked Potentials, Somatosensory physiology, Immunohistochemistry, Interneurons metabolism, Interneurons physiology, Laser-Doppler Flowmetry, Male, Neurons physiology, Pyramidal Cells metabolism, Pyramidal Cells physiology, Rats, Rats, Wistar, Somatosensory Cortex physiology, Synaptic Potentials physiology, gamma-Aminobutyric Acid metabolism, Cerebrovascular Circulation physiology, Neurons metabolism, Oxygen Consumption physiology, Somatosensory Cortex blood supply, Somatosensory Cortex metabolism
Abstract: Functional neuroimaging signals are generated, in part, by increases in cerebral blood flow (CBF) evoked by mediators, such as nitric oxide and arachidonic acid derivatives that are released in response to increased neurotransmission. However, it is unknown whether the vascular and metabolic responses within a given brain area differ when local neuronal activity is evoked by an activity in the distinct neuronal networks. In this study we assessed, for the first time, the differences in neuronal responses and changes in CBF and oxygen consumption that are evoked after the activation of two different inputs to a single cortical area. We show that, for a given level of glutamatergic synaptic activity, corticocortical and thalamocortical inputs evoked activity in pyramidal cells and different classes of interneurons, and produced different changes in oxygen consumption and CBF. Furthermore, increases in stimulation intensities either turned off or activated additional classes of inhibitory interneurons immunoreactive for different vasoactive molecules, which may contribute to increases in CBF. Our data imply that for a given cortical area, the amplitude of vascular signals will depend critically on the type of input, and that a positive blood oxygen level-dependent (BOLD) signal may be a consequence of the activation of both pyramidal cells and inhibitory interneurons.
Published: 2009
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16. Contribution of somatosensory cortex to evoked cerebellar blood flow responses.

Author: Piilgaard H and Lauritzen M
Subjects: Action Potentials physiology, Afferent Pathways physiology, Animals, Blood Vessels innervation, Blood Vessels physiology, Cerebellar Cortex blood supply, Cerebellar Cortex cytology, Cortical Spreading Depression physiology, Electric Stimulation, Male, Neural Conduction physiology, Neurons physiology, Rats, Rats, Wistar, Synaptic Transmission physiology, Cerebellar Cortex physiology, Cerebrovascular Circulation physiology, Neural Pathways physiology, Somatosensory Cortex physiology, Trigeminal Nerve physiology
Abstract: Projections from the trigeminocerebellar pathway and the somatosensory cortex coincide spatially in the granule cell layer of Crus I/II of the cerebellar hemisphere. A biphasic field potential was seen: one peak at 10 ms (trigeminal input) and another at 20 ms (somatosensory input). Linear correlation analysis revealed only a weak coupling between somatosensory input and cerebellar blood flow responses to infraorbital nerve stimulation. In separate experiments, cortical spreading depression attenuated the field potential peak at 20 ms while blood flow responses remained unaltered. Thus, trigeminocerebellar activity explained the evoked blood flow responses. Our data provide further evidence that activity-dependent blood flow responses are context-sensitive and that interaction between excitatory neuronal circuits targeting the same cells may occlude vascular responses.
Published: 2004
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16 results on '"Piilgaard H."'

1. Variation in Structure and Process of Care in Traumatic Brain Injury: Provider Profiles of European Neurotrauma Centers Participating in the CENTER-TBI Study

2. Variation in structure and process of care in traumatic brain injury: Provider profiles of European Neurotrauma Centers participating in the CENTER-TBI study

3. Variation in monitoring and treatment policies for intracranial hypertension in traumatic brain injury: A survey in 66 neurotrauma centers participating in the CENTER-TBI study

4. Multi-modal assessment of neurovascular coupling during cerebral ischaemia and reperfusion using remote middle cerebral artery occlusion

5. Variation in structure and process of care in traumatic brain injury: Provider profiles of European Neurotrauma Centers participating in the CENTER-TBI study

6. YIA5: Predictor of severity and long distance outcome of patients with critical illness myopathy and polyneuropathy

7. Increased 20-HETE Synthesis Explains Reduced Cerebral Blood Flow But Not Impaired Neurovascular Coupling after Cortical Spreading Depression in Rat Cerebral Cortex

8. Variation in monitoring and treatment policies for intracranial hypertension in traumatic brain injury

9. Multi-modal assessment of neurovascular coupling during cerebral ischaemia and reperfusion using remote middle cerebral artery occlusion.

10. Recording, analysis, and interpretation of spreading depolarizations in neurointensive care: Review and recommendations of the COSBID research group.

11. Neocortical gamma oscillations in idiopathic generalized epilepsy.

12. Cyclosporine A, FK506, and NIM811 ameliorate prolonged CBF reduction and impaired neurovascular coupling after cortical spreading depression.

13. Principal cell spiking, postsynaptic excitation, and oxygen consumption in the rat cerebellar cortex.

14. Persistent increase in oxygen consumption and impaired neurovascular coupling after spreading depression in rat neocortex.

15. Pathway-specific variations in neurovascular and neurometabolic coupling in rat primary somatosensory cortex.

16. Contribution of somatosensory cortex to evoked cerebellar blood flow responses.

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