142 results on '"S. Vorstrup"'
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2. THE EFFECT OF CHRONIC HYPERTENSION AND ANTIHYPERTENSIVE DRUGS ON THE CEREBRAL CIRCULATION
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S. Vorstrup, J.O. Jarden, O. Brændstrup, Svend Strandgaard, David I. Graham, D.I. Barry, and U.G. Svendsen
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medicine.medical_specialty ,business.industry ,Diazoxide ,Rats, Inbred Strains ,Prazosin ,Pharmacology ,Dihydralazine ,Rats ,Vasodilation ,Cerebral circulation ,Cerebrovascular Circulation ,Hypertension ,Internal Medicine ,Animals ,Homeostasis ,Humans ,Medicine ,Chronic hypertension ,business ,Intensive care medicine ,Antihypertensive Agents - Published
- 2009
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3. Thrombolysis for Stroke -Time for a Consensus
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Gudrun Boysen, J. Bogousslavsky, and S. Vorstrup
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medicine.medical_specialty ,Neurology ,business.industry ,medicine.medical_treatment ,Emergency medicine ,medicine ,Physical therapy ,Neurology (clinical) ,Thrombolysis ,Cardiology and Cardiovascular Medicine ,business ,medicine.disease ,Stroke - Published
- 1996
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4. Fourth meeting of the European Neurological Society 25–29 June 1994 Barcelona, Spain
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H. Hattig, C. Delli Pizzi, M. C. Addonizio, Michelle Davis, A. R. Giovagnoli, L. Florensa, M. Roth, J. de Kruijk, Francisco Lacruz, Ph. Dewailly, A. Toygar, C. Avendano, P.P. De Deyn, J. F. Hurtevent, F. Lomeila, T. W. Wong, Gordon T. Plant, M. Bud, H. J. Willison, DH Miller, D. W. Langdon, R. Cioni, J. Servan, A. Kaygisiz, E. Racadot, D. B. Schens, E. Picciola, L. Falip, C. Bouchard, J. Jotova, A. Jorge-Santamaria, P. Misra, A. Dufour, C. P. Panagopoulos, A. Venneri, B. Sredni, B. Angelard, M. Janelidze, M. Carreno, J. Obenberger, J. Pouget, H. W. Moser, R. Kaufmann, J. A. Molina, D. Linden, A. Martin Urda, E. Uvestad, A. Krone, J. P. Cochin, J. Mallecourt, A. Cambon-Thomsen, K. Violleau, P. Osschmann, A. M. Durocher, E. Bussaglia, D. M. Danielle, H. Efendi, C. Van Broeckhoven, K. G. Jordan, W. Rautenberg, C. Iniguez, J. M. Delgado, Graham Watson, M. Lawden, Gareth J. Barker, K. Stiasny, James T. Becker, G. Campanella, E. Peghi, A. Poli, A. Haddad, T. Yamawaki, Giacomo P. Comi, S. Sotgiu, B. Ersmark, A. Pomes, M. Ziegler, P. Ferrante, P. Ruppi, H. KuÇukoglu, R. Bouton, U. K. Rinne, P. Vieregge, M. Dary, P. Giunti, Peter J. Goadsby, S. Jung, E. Secor, A. Steinberg, N. Vila, M. A. Hernandez, M. Cursi, A. Enqelhardt, A. Engelhardt, J. Veitch, F. Di Silverio, F. Arnaud, B. Neundörfer, R. Brucher, Dominique Caparros-Lefebvre, B. Meyer, Marianne Dieterich, M. H. Snidaro, R. Gomez, R. Cerbo, M. Ragno, J. M. Vance, S. Nemni, A. Caliskan, F. Barros, I. Velcheva, D. Ceballos-Baumann, V. Barak, A. Avila, N. Antonova, F. Resche, S. Pappata, L. Varela, S. R. Silveira Santos, A. Cammarota, L. Naccache, Y. Nara, E. Tournier-Lasserves, R. Mobner, T. Chase, A. Ensenyat, J. Ulrich, G. Giegerich, M. Rother, M. Revilla, N. Nitschke, K. Honczarenko, E. Basart Tarrats, J. Blin, B. Jacob, J. Santamaria, S. Knezevic, J. L. Castillo, M. Antem, J. Colomer, O. Busse, Didier Hannequin, S. Carrier, J. B. Ruidavets, C. Rozman, J. Bogoussslavsky, J. Pascual Calvet, E. Monros, J. M. Polo, M. Zucconl, Javier Muruzabal, R. R. Allen, R. Rivolta, K. Haugaard, A. Nespolo, K. Hoang-Xuang, G. Bussone, T. Avramidis, E. Corsini, Christiana Franke, T. Vinogradova, H. Boot, K. Vestergaard, G. H. Jansen, N. Argentino, M. Raltzig, W. Linssen, Mark B. Pepys, P. Roblot, L. Lauritzen, E. Fainardi, D. Morin, T. X. Arbizu Urdiain, J. Wollenhaupt, S. Bostantjopoulou, G. Pavesi, A. D. Forman, Giovanni Fabbrini, D. Jean, J. J. Archelos, M. I. Blanchs, M. Del Gobbo, Anna Carla Turconi, Ch. Derouesné, Elio Scarpini, A. Visbeck, P. Castejon, J. P. Renou, F. Mounier-Vehier, G. Potagas, Ch. Duyckaerts, A. Filla, R. Schneider, G. Ronen, K. Nagata, J. P. Vedel, A. Henneberg, G. van Melle, C. Baratti, H. Knott, M. C. Prevett, A. Bes, B. Metin, Jos V. Reempts, L. Martorell, Mefkure Eraksoy, H. O. Handwerker, D. S. Younger, O. Oktem, D. Frongillo, C. Soriano-Soriano, L. Niehaus, F. Zipp, A. Tartaro, S Newman, R. H. Browne, P. Davous, R. Sanchez, M. Muros, M. E. Kornhuber, A. Lavarone, M. Mohr, M. R. Garcia, S. Russell, H. Kellar-Wood, M. R. Tola, B. Ostermeyer, Ch. Tzekov, K. Sartor, E. B. Ringelstein, P. P. Gazzaniga, Paul Krack, H. Fidaner, H. Rico, T. Dbaiss, F. Alameda, E. Torchiana, L. Rumbach, I. Charques, J. M. Bogaard, C. D. Frith, L. J. Rappelle, R. Brenner, A. Joutel, K. Fuxe, G. HÄcker, M. J. Blaser, J. Valls-SolÇ, G. Ulm, M. Alberdi, A. Bock, F. W. Bertelsmann, U. Wieshmann, J. Visa, J. R. Lupski, D. D'Amico, L. M. P. Ramos, A. A. Vanderbark, R. Horn, M. Warmuth, Dietmar Kühne, Mark S. Palmer, C. Ehrenheim, E. Canga, S. Viola, O. Scarpino, P. Naldi, R. Almeida, A. A. Raymond, J. Gamez, Stephan Arnold, A. DiGiovanni, J. Dalmau, C. C. Chari, H. F. Beer, J. C. Koetsier, J. Iriarte, E. Yunis, J. Casadevall, E. Le Guern, E. Stenager, S. R. Benbadis, J. M. Warter, F. Burklin, I. Theodorou, L. Johannesen, G. A. Graveland, X. Leclerc, I. Vecchio, L. Ozelius, G. Nicoletti, R. K. Gherardi, E. Esperet, M. L. Delodovici, F. Cattin, F. Paiau, Giorgio Sacilotto, C. A. J. Broere, D. Chavdarov, J. P. Willmer, C. H. Hawkes, Th. Naegele, E. Ellie, E. Dartigues, M. J. Guardiola, S. Hesse, Z. Levic, Marco Rovaris, P. Saugeir-Veber, B. A. Yaqub, H. F. Durwen, R. Larumbe, J. Ballabrina, M. Sendtner, J. Röther, M. Horstink, C. Kluglein, M.P. Montesi, H. Apaydin, J. Montoya, E. Waubant, Ch. Verellen-Dunoulin, A. Nicolai, J. Lopez-Delval, R. Lemon, G. Cantinho, E. Granieri, A. Zeviani, Wolfgang H. Oertel, U. Ficola, V. Di Piero, V. Fragola, K. Sabev, M. V. Guitera, I. Turki, F. Bolgert, P. Ingrand, J. M. Gobernado, L. M. E. Grimaldi, S. Baybas, B. Eymard, Y. Rolland, Y. Robitaille, Ta. Pampols, P. J. Koehler, A. Carroacedo, J. Vilchez, S. Di Vittorio, I. R. Rise, T. Nagy, M. Kuffner, E. Palazzini, A. Ott, J. Pruim, T. X. Arbizu, E. Manetti, C. Cervera, S. Felber, G. Gursoy, J. Scholz, G. A. Buscaino, M. S. Chen, A. Pascual, J. Hazan, J. U. Gajda, J. G. Cea, G. Bottini, G. Damalik, F. Le Doze, G. Bonaldi, J. M. Hew, C. Messina, A. M. Kennedy, J. M. Carney, N. M. F. Murray, M. Parent, M. Koepp, V. Dimova, D. De Leo, K. Jellinger, G. Salemi, S. Mientus, M. L. Hansen, F. Mazzucchelli, J. Vieth, M. Mauri, E. Bartels, L. Johannsen, C. Humphreys, J. Emile, D. N. Landon, E. Kansu, R. Sanchez-Pernaute, Rsj Frackowiak, M. Gonzalez Torres, L. Oller, C. Machedo, J. Kother, M. Billiard, H. Durak, T. Schindler, A. Frank, A. Uncini, A. Sbriccoli, C. Farinas, D. W. Paty, N. Fast, A. T. Zangaladze, A. Kerkhofs, J. M. Pino Garcia, I. De la Fuente, B. Marini, L. Gomez, I. Rubio, Alessandra Bardoni, C. Brodie, P. Acin, U. Sliwka, S. A. Hawkins, S. Tardieu, F. Vitullo, J. M. Pereira Monteino, R. Gagliardi, T. Jezewski, A. Cano, T. Lempert, F. Abad Alegria, G. Rotondo, D. Ince, C. Martinez Parra, Y. Huang, H. Luders, Y. Steinvil, F. G. A. Van Der Meche, R. Bianchi, A. Sanchez, T. Sevilla, J. M. Ketelslegers, A. Domzal-Stryga, M. Pandolfo, M. O. Josse, K. W. Neff, I. Blanco, G. W. Bruyn, O. W. Witte, J. L. Thibault, G. Andersen, J. Pariset, A. Marcone, R. J. M. Lane, A. Hofman, M. Verin, T. Matilla, P. Bedoucha, J. Roche, M. Lai, M. Collard, A. Ugarte, F. Gallecho, D. Silbersweig, C. Kennard, J. P. Azulay, T. W. Ho, P. L. I. Dellemijn, R. Girardello, F. Baas, B. Voss, F. Rozenberg, E. M. Brocker, V. Stanev, A. A. J. Soeterboek, A. Marra, A. Rey, E. Ertem, M. Sawradewicz-Rybak, J. De Keyser, P. Cavallari, F. Proust, Y. Chevalier, H. C. Hansen, D. Leys, C. A. Davie, K. Hoang-Xuan, C. Bairati, H. van Crevel, Thomas T. Warner, B. Bompais, A. Dobbeleir, T Campbell, C. Macko, C. J. M. Klijn, M. Dussallant, T. P. Berlit, W. Rozenbaum, M. J. van den Bent, W. A. Rocca, M. Muller, H. Hundemer, U. Zifko, M. Campera, F. Drislane, D. Ranoux, T. M. Kloss, Anil Kumar, I. Ruolt, C. Bargnani, B. Marescau, N. A. Losseff, S. Notermans, B. Kint, E. T. Burke, C. Aykut, J. Matias Guiu, P. Maquet, T. Drogendijk, M. Leone, K. von Ammon, M. Pepeliarska, C. Prados, L. DiGiamberardino, T. Logtenberg, G. Lenoir, I. Castaldo, Damhaut, M. Radionova, G. Sirabian, R. Navon, Giovanni Antonini, K. Al Moutaery, E. Chamas, R. Schönhuber, M. Giannini, B. Debilly, I. Labatut, H. Henon, J. A. Egido, M. Baudrimont, J. N. Lorenzo, J. E. C. Bromberg, R. Antonacci, J. J. Vilchez, T. Moulin, B. Rautenstrauss, Giovanni Meola, J. Noth, S Mammi, P. Laforet, F. Lopez, C. Gehring, S. Bort, G. Rancurel, D. Decamps, S. Kostadinova, Y. Shapira, B. Neundoerfer, D. Chavrot, M. Solimena, J. P. Salier, W. Deberdt, R. Hoff-Jörgensen, A. Messina, S. Meairs, G. Rosoklija, E. Nelis, I. Bertran, C. Ertekin, J. Lohmeyer, Mitermayer Galvao dos Reis, L. Calo, E. Maccagnano, A. P. Hays, J. Verlooy, M. G. Forno, T. Blanco, L. Bail, Gabriella Silvestri, J. Montero, F. Bertrand, R. T. Ghnassia, C. Besses, T. Sereghy, F. Shalit, G. Bogliun, S. Braghi, St. Baykouchev, C. Franke, A. Lasa, L. C. Archard, J. Kriebel, S. Shaunak, M. Nocito, Alexander Tsiskaridze, E. Manfredini, T. Seigal, David G. Gadian, M. Barlas, J. D. Degos, C. Seeber, J. Caemert, J. L. Mas, R. B. Pepinsky, M. G. D'Angelo, N. Baumann, S. Yorifuji, H. P. Endtz, M. A. Cassatella, R. A. C. Hughes, V. Golzi, A. Bittencourt, A. Ferreira, M. Sanson, C. Alper, M. Vermeulen, M. A. A. van Walderveen, E. Alexiou, C. H. Lucas, M. Fiorelli, Y. N. Debbink, R. Gil, S. Congia, T. Banerjee, J. M. Bouchard, A. N. Pinto, A. Ceballos-Baumann, G. Grollier, P. I. M. Schmitz, M. D. Catata, N. Lahat, N. S. Rao, P. Papathanasopoulos, J. Valls-Solé, D. Claus, G. Schroter, A. Castro, C. Videbaek, R. Martinez Dreke, A. D. Platts, M. Hermesl, A. C. PeÇanha-Martins, M. Cardoso Silva, P. Masnou, M. J. A. Tanner, Ch. Confavreux, B. Mishu, H. Rasmussen, L. Valenciano, Carlo Pozzilli, S. W. Li, V. Salzman, Y. Vashtang, Massimo Franceschi, M. Severo, G. Deuschl, S. Setien, G. Mariani, A. Protti, J. Castillo, M. J. B. Taphoorn, M. Frontali, I. Milonas, D. Decoq, J. A. Navarro, S. Castellvi-Pel, C. Ertikin, M. Urtasun, Y. Lajat, B. E. Kendall, E. Verdu, B. Gueguen, E. Boisen, R. Couderc, A Danek, JM Stevens, F. Nicoli, L. Feltri, M. L. Vazquez-Andre, J. A. Morgan-Hughes, L. D'Angelo, F. Y. Liew, L. F. Pascual, J. Patrignani Ochoa, Vittorio Martinelli, J. Cophignon, L. Zhang, S. Martin, J. F. Meder, H. C. Buschmann, L. Bertin, J. van Gijn, A. Barreiro, A. Cools, C. Leon, A. Berod, E. A. Anllo, E. Zanette, L. Petrov, R. Barona, B. Gallicchio, P. J. Cozzone, N. Diederich, G. Cancel, L. Schelosky, P. Orizaola, K. Yulug, S. Ozer, Valeria A. Sansone, B. Guiraud-Chaumeil, K. Voigt, P. Labauge, M. Eoli, J. Zhu, J. Aguirre, M. Ferrarini, B. Zyluk, E. Planas, A. Cadilha, C. Tortorella, H. Bismuth, C. E. Counsell, A. Laun, A. Ferlini, Rio J. Montalban, N. Biary, L. Becker, M. Fardeau, M. Poloni, V. M. S. de Bruin, C. Fornada, J. Barros, E. Ganzmann, E. Touze, D. Wallach, J. Peila, H. Fujimura, M. T. Iba-Zizen, G. Macchi, C. Villoslada, R. Gouider, Ph. Rondepierre, P. Grummich, P. Chiodi, C. Conte, M. Michels, P. Annunziata, G. Semana, C. Sommer, J. Vajsar, D. Zekin, J. Kulisevsky, David G. Munoz, B. Jacotot, M. Magoni, A. Luxen, T. Garcia-Silva, S. Di Cesare, Christophe Tzourio, M. Gomori, I. Picomell, L. Santoro, F. Villa, Giovanni Pennisi, T. Ribalta, J. M. Molto, L. Marzorati, P. Loiseau, F. Gemignani, A. Gironell, J. Wissel, A. Prusinski, F. Cailloux, P. Villanueva-Hemandez, P. Cozzone, T. Del Ser, J. Sans-Sabrafen, M. Zappia, P. W. A. Willems, G. Tchernia, D. Gardeur, R. Bauer, F. Palomo, H. Metz, S. Lamoureux, C. Chastang, I. Reinhard, A. Goldfarb, S. Harder, Jordi Río, C. Ozkara, E. Tekinsoy, P. Vontobell, J. De Recondo, M. Rabasa, L. Lacomblez, F. Boon, Dgt Thomas, V. Palma, Renato Mantegazza, A. Dervis, M. Nueckel, B. YalÇinerner, I. Duran, G. Dalla Volta, A. Zubimendi, J. Pinheiro, A. Marbini, Xavier Montalban, H. Wekerle, X. Pereira Monteino, F. Crespo, F. Koskas, N. Battistini, C. Ruiz, H. Offner, J. de Pommery, P. Kanovsky, J. Y. Barnett, J. Pardo, G. Tomei, R. Rene, H. M. Lokhorst, P. Thajeb, H. Bilgin, D. McGehee, R. Fahsold, L. Morgante, Katie Sidle, C. Delwaide, M. N. Diaye, P. H. Rice, A. Creange, C. Sabev, K. Stephan, K. WeilBenborn, G. Magnani, L. Grymonprez, F. Cardellach, M. Kaps, N. G. Meco, F. Vega, V. Bonifati, A. Desomer, M. Baldy-Moulinier, G. Kvale, F. J. Authier, B. Yegen, T. Ho, J. M. Rozet, E. A. Cabanis, L. Bruce, L. Ambrosoli, M. A. Petrella, M. Hernandez, P. Timmings, H. B. van der Worp, F. Mahieux, A. Urbano-Marquez, D. A. Krendel, A. A. Garcia, R. Divari, R. Michalowicz, M. R. Piedmonte, M. Bondavalli, M. Zanca, P. F. Ippel, Onofre Combarros, B. Tavitian, E. Hirsch, I. Anastasopoulos, A. Roses, A. Köhler, P. Vienna, V. Timmerman, P. Sergi, F. Cornelio, A. Di Pasquale, R. Verleger, S. Castellvirel, J. Proano, B. van Moll, F. Rubio, W. Hacke, I. Lavenu, L. Zetta, M. W. Tas, N. Bittmann, M. Bonamini, O. R. Hommes, V. Dousset, N. Afsar, S. Belal, R. R. Myers, J. Goes, Giuseppe Vita, E. Clementi, V. G. Karepov, M. Jueptner, A Vincent, P. Emmrich, Th. Heb, A. Caballo, J. Gallego, T. Mokrusch, C. Perla, L. Gebuhrer, O. Titlbach, Alessandro Prelle, A. Czlonkowska, M. Russo, D. Hadjiev, T. S. Chkhikvishvili, M. Oehlschlager, G. Becker, I. Günther, E. N. Stenager, J. Garcia Agundez, J. Casademont, J. Batlle, S. Podobnik-Sarkanji, C. Alonso-Villaverde, B. Delaguillaume, B. Genc, B. Mazoyer, A. Rodriguez-Al-barino, Ch. Hilger, B. Ferrero, R. Price, W. Grisold, L. Fuhry, D. Oulbani, D. Ewing, A. Petkov, W. Walther, A. Gokyigit, John Newsom-Davis, J. Tayot, D. Seliak, G. Pelliccioni, D. Campagne, K. Kessler, F. Boureau, D. Perani, J. P. N'Guyen, N. Tchalucova, B. A. Antin-Ozerkis, C. Lacroix, B. D. Aronovich, I. H. Jenkins, E. A. dos Reis, M. Hortells, H. M. Meinck, H. Ch. Buschmann, S. C. J. M. Jacobs, T. Wetter, P. Creissard, N. Martinez, J. Weidenfeldl, H. J. Sturenburg, G. Damlacik, V. Gracia, J. C. Turpin, A. Pou-Serradell, J. P. Vincent, T. Gagoshidze, U. Ozkutlu, M. McLeod, K. Siegfried, I. Tchaoussoglou, J. Hildebrand, S. Kowalska, M. C. Picot, G. Galardin, L. Crevits, F. Andreetta, S. Larumbe-Lobalde, G. de la Sierra, J. C. Alvarez-Cermeno, R. J. Seitz, P. L. Oey, L. Ptacek, A. M. J. Paans, A. Wirrwar, A. Schmied, J. Uilchez, H. Tounsi, D. Hipola, V. Avoledo, Y. Hirata, P. Vermersch, T. M. Aisonobe, J. Valls-SoIè, H. Staunton, J. Dichgans, R. Karabudak, I. Dones, G. Porta, E. Janssens, Maria Martinez, J. M. Fernandez-Real, R. Villagra, Y. Yoshino, C. Kabus, K. Schimrigk, I. Girard-Buttaz, F. Piccoli, F. Aichner, P. Zuchegna, S. M. Al Deeb, F. Bono, N. Busquets, A. Jobert, Patrizia Ciscato, M. Martin, L. Polman, S. Darbra, V. Le Cam-Duchez, F. Baldissera, B. Baykan-Kurt, D. Guez, M. Bratoeva, H. Matsui, M. Mila, H. Perron, L. Bjorge, G. Husby, Steven T. DeKosky, D. R. Cornblath, J. M. Gabriel, J. J. Poza, Y. Wu, A. Toscano, R. P. Kleyweg, J. Kuhnen, S. O. Confort-Gouny, A. Barcelo, A. M. Conti, C. Fiol, C. Steichen-Wiehn, J. Rodes, M. Cavenaile, C. Vedeler, M. Drlicek, C. Argentino, M. L. Peris, A. Cervello, A. Z. GinaÏ, S. Yancheva, D. Passingham, S. Aoba, D. L. Lopez, T. Rechlin, K. Sonka, L. Grazzi, V. Folnegovic-Smalc, Maurizio Moggio, S. Rivaud, F. G. I. Jennekens, C. H. Hartard, H. Meierkord, G. Stocklin, M. D. Catala, W. C. McKay, E. Salmon, C. Navarro, I. Pastor, L. Canafoglia, M. De Braekeleer, P. K. Thomas, C. Mocellini, C. Pierre-Jerome, M. C. Dalakas, P. Pollak, M. Levivier, Niall Quinn, G. E. Rivolta, Z. Tunca, H. Zeumer, J. Garcia Tena, St. Guily, P. Gaudray, Johannes Kornhuber, V. Petrunjashev, R. Montesanti, R. J. Abbott, H. Petit, G. Kiteva-Trencevska, F. Carletto, C. Ramo, I. M. Pino, P. Beau, G. F. Mennuni, F. Moschian, F. Meneghini, B. Zdziarska, B. Fontaine, C. Stephens, G. Meco, K. Reiners, G. Badlan, M. Sessa, I. Degaey, S. M. Hassan, C. Albani, F. Caroeller, M. Schroeder, G. Savettieri, A. Novelletto, R. Kurita, P. Oschmann, I. Plaza, M. Oliveres, Simone Spuler, A. Molins, M. Schwab, J. R. Kalden, C. P. Gennaula, Y. Baklan, O. Picard, J. M. Léger, B. Mokri, E. Ghidoni, M. Jacob, D. Deplanque, W. JÄnisch, C. De Andres, P. De Deyn, G. Guomundsson, B. Herron, J. Barado, J. L. Gastaut, Guglielmo Scarlato, F. Poron, Nicola Jones, H. Teisserenc, C. P. Hawkins, A. J. Steck, H. C. Chandler, S. Blanc, J. H. Faiss, Jm. Soler Insa, I. Sarova-Ponchas, M. Malberin, A. Sackmann, G. De Vuono, K. Kaiser-Rub, K. Badhia, E. Szwabowska-Orzeszko, S. Ramm, C. Jodice, G. Franck, J. Marta-Moreno, R. Sciolla, C. Fritz, A. Attaccalite, F. Weber, E. Neuman, M. Cannata, A. Rodriguez, I. Nachainkin, R. Raffaele, T. S. Yu, N. Losseff, E. Fabrizio, C. Khati, M. Keipes, M. P. Ortega, M. Ramos-Alvarez, E. Brambilla, A. Tarasov, K. H. Wollinsky, O. B. Paulson, F. Boller, G. Bozzato, H. Wagnur, R. Canton, D. Testa, E. Kutluaye, M. Calopa, D. Smadja, G. Malatesta, F. Baggi, A. Stracciari, G. Daral, G. Avanzini, J. Perret, J. Arenas, P. Boon, I. Gomes, A. Vortmeyer, P. Cesaro, S. Venz, E. Bernd Ringelstein, N. Milani, D. Laplane, P. Seibel, E. Tournier-Lasserve, Alexis Brice, L. Motti, E. Wascher, R. J. Abbot, F. 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Henderson, R. Massa, A. Cruz Martinez, U. Liska, F. Hecht, Ernst Holler, V. S. de Bruin, B. B. Sheitman, S. M. Bentzen, C. Bayindir, F. Pallesta, P. E. Roland, J. Parrilla, P. Zunker, L. F. Burchinskaya, G. Mellino, S. Ben Ayed, D. Bonneau, P. Nowacki, M. Goncalves, P. Riederer, N. Mavroudakis, J. Togores, L. Rozewicz, S. Robeck, Y. Perez Gilabert, L. Rampello, A. Rogopoulos, S. Martinez, F. Schildermans, C. Radder, P. B. Hedlund, J. Cambier, M. Aabed, G. D. Jackson, P. Gasparini, P. Santacruz, J. Vandevivere, H. Dural, A. Mantel, W. Dorndorf, N. Ediboglu, A. Lofgren, J. Bogousslavsky, P. Thierauf, L. Goullard, R. Maserati, B. Moering, M. Ryba, J. Serra, G. G. Govan, A. Pascual-Leone, S. Schaeffer, M. R. Rosenfeld, A. P. Correia, K. Ray Chaudhuri, L. Campbell, R. Spreafico, B. Genetet, A. M. Tantot, R. A. G. Hughes, J. A. Vidal, G. Erkol, J. Y. Delattre, B. Yaqub, B. K. Hecht, E. Mayayo, Ph. Scheltens, J. Corral, M. Calaf, L. Henderson, C. Y. Li, U. Bogdahn, R. Sanchez-Roy, M. Navasa, J. Ballabriga, G. Broggi, T. Gudeva, C. Rose, J. Vion-Dury, J. A. Gastaut, J. Pniewski, Nicola J. Robertson, G. Kohncke, M. Billot, S. Gok, E. Castellli, F. Denktas, P. Bazzi, F. Spinelli, I. F. Moseley, C. D. Mardsen, B. Barbiroli, O. M. Koriech, A. Miller, Hiroaki Yoshikawa, F. X. Borruat, J. Zielasek, P. Le Coz, J. Pascual, A. Drouet, L. T. Giron, F. Schondube, R. Midgard, M. Alizadeh, M. Liguori, Lionel Ginsberg, L. Harms, C. Tilgner, G. Tognoni, F. Molteni, Mar Tintoré, M. Psylla, C. Goulon-Goeau, M. V. Aguilar, Massimo Filippi, K. H. Mauritz, Thomas V. Fernandez, C. Basset, S. Rossi, P. Meneses, B. Jandolo, T. Locatelli, D. Shechtcr, C. Magnani, R. Ferri, Bruno Dubois, J. M. Warier, S. Berges, F. Idiman, M. Schabet, R. R. Diehl, P. D'aurelio, M. Musior, Reinhard Hohlfeld, P. Smeyers, M. Olivé, A. Riva, C. A. Broere, N. Egund, S. Franceschetti, V. Bonavita, Nicola Canal, E. Timmermans, M. Ruiz, S. Barrandon, G. Vasilaski, B. Deweer, L. Galiano, S. F. T. M. de Bruijn, L. Masana, A. Goossens, B. Heye, K. Lauer, Heinz Gregor Wieser, Stephen R. Williams, B. Garavaglia, A. P. Sempere, F. Grigoletto, P. Poindron, R. Lopez-Pajares, I. Leite, T. A. McNell, C. Caucheteur, J. M. Giron, A. D. Collins, P. Freger, J. Sanhez Del Rio, D. A. Harn, K. Lindner, S. S. Scherer, G. Serve, M. Juncadella, X. Estivill, R. Binkhorst, M. Anderson, B. Tekinsoy, C. Sagan, T. Anastopoulos, G. Japaridze, S. Guillou, F. Erminio, Jon Sussman, P. G. Oomes, D. S. Rust, S. Mascheroni, O. Berger, M. Peresson, K. V. Toyka, T. W. Polder, M. Huberman, B. Arpaci, H. Ramtami, I. Martinez, Ph. Violon, P. P. Gazzaniga Pozzill, R. Ruda, P. Auzou, J. Parker, S. P. Morrissey, Jiahong Zhu, F. Rotondi, P. Baron, W. Schmid, P. Doneda, M. Spadaro, M. C. Nargeot, I. Banchs, J.S.P. van den Berg, R. Ferrai, M. Robotti, M. Fredj, Pedro M. Rodríguez Cruz, B. Erne, D. G. Piepgras, M. C. Arne-Bes, J. Escudero, C. Goetz, A. R. Naylor, M. Hallett, O. Abramsky, E. Bonifacio, L. E. Larsson, R. Pellikka, P. Valalentino, D. Guidetti, B. Buchwald, C. H. Lücking, D. Gauvreau, F. Pfaff, A. Ben Younes-Chennoufi, R. Kiefer, R. Massot, K. A. Hossmann, L. Werdelin, P. J. Baxter, U. Ziflo, S. Allaria, C. D. Marsden, M. Cabaret, S. P. Mueller, E. Calabrese, R. Colao, S. I. Bekkelund, M. Yilmaz, O. Oktem-Tanor, R. Gine, M. E. Scheulen, J. Beuuer, A. Melo, Z. Gulay, M. D. Have, C. Frith, D. Liberati, J. Gozlan, P. Rondot, Ch. Brunholzl, M. Pocchiari, J. Pena, L. Moiola, C. Salvadori, A. Cabello, T. Catarci, S. Webb, C. Dettmers, N. A. Gregson, Alexandra Durr, F. Iglesias, U. Knorr, L. Ferrini-Strambi, F. Kruggel, P. Allard, A. Coquerel, P. Genet, F. Vinuels, C. Oberwittler, A. Torbicki, P. Leffers, B. Renault, B. Fauser, C. Ciano, G. Uziel, J. M. Gibson, F. Anaya, C. Derouesné, C. N. Anagnostou, M. Kaido, W. Eickhoff, G. Talerico, M. L. Berthier, A. Capdevila, M. Alons, D. Rezek, E. Wondrusch, U. Kauerz, D. Mateo, M. A. Chornet, Holon, N. Pinsard, I. Doganer, E. Paoino, H. Strenge, C. Diaz, J. R. Brasic, W. Heide, I. Santilli, W. M. Korn, D. Selcuki, M. J. Barrett, D. Krieger, T. Leon, T. Houallah, M. Tournilhac, C. Nos, D. Chavot, F. Barbieri, F. J. Jimenez-Jimenez, J. Muruzabal, K. Poeck, A. Sennlaub, L. M. Iriarte, L. G. Lazzarino, C. Sanz, P. A. Fischer, S. D. Shorvon, R. Hoermann, F. Delecluse, M. Krams, O. Corabianu, F. H. Hochberg, Christopher J. Mathias, B. Debachy, C. M. Poser, L. Delodovici, A. Jimenez-Escrig, F. Baruzzi, F. Godenberg, D. Cucinotta, P. J. Garcia Ruiz, K. Maier-Hauff, P. R. Bar, R. Mezt, R. Jochens, S. Karakaneva, C. Roberti, E. Caballero, Joseph E. Parisi, M. Zamboni, T. Lacasa, B. Baklan, J. C. Gautier, J. A. Martinez-Matos, W. Pollmann, G. Thomas, L. Verze, E. Chleide, R. Alvarez Sala, I. Noel, E. Albuisson, O. Kastrup, S. I. Rapoport, H. J. Braune, H. Lörler, M. Le Merrer, A. Biraben, S. Soler, S. J. Taagholt, U. Meyding-Lamadé, K. Bleasdale-Barr, Isabella Moroni, Y. Campos, J. Matias-Guiu, G. Edan, M. G. Bousser, John B. Clark, J. Garcia de Yebenes, N. K. Olsen, P. Hitzenberger, S. Einius, Aj Thompson, Ch. J. Vecht, T. Crepin-Leblond, Klaus L. Leenders, A. Di Muzio, L. Georgieva, René Spiegel, K. Sabey, D. Ménégalli, J. Meulstee, U. Liszka, P. Giral, C. Sunol, J. M. Espadaler, A. D. Crockar, K. Varli, G. Giraud, P. J. Hülser, A. Benazzouz, A. Reggio, M. Salvatore, K. Genc, M. Kushnir, S. Barbieri, J. Ph. Azulay, M. Gianelli, N. Bathien, A. AlMemar, F. Hentati, I. Ragueneau, F. Chiarotti, R. C. F. Smits, A. K. Asbury, F. Lacruz, B. Muller, Alan J. Thompson, Gordon Smith, K. Schmidt, C. Daems Monpeun, Juergen Weber, A. Arboix, G. R. Fink, A. M. Cobo, M. Ait Kaci Ahmed, E. Gencheva, Israel-Biet, G. Schlaug, P. De Jonghe, Philip Scheltens, K. Toyka, P. Gonzalez-Porque, A. Cila, J. M. Fernandez, P. Augustin, J. Siclia, S. Medaglini, D. E. Ziogas, A. Feve, L. Kater, G. J. E. Rinkel, D. Leppert, Rüdiger J. Seitz, S. Ried, C. Turc-Carel, G. Smeyers, F. Godinho, M. Czygan, M. Rijntjes, E. Aversa, M. Frigo, Leif Østergaard, J. L. Munoz Blanco, A. Cruz-Matinez, J. De Reuck, C. Theillet, T. Barroso, V. Oikonen, Florence Lebert, M. Kilinc, C. Cordon-Cardon, G. Stoll, E. Thiery, F. Pulcinelli, J. Solski, M. Schmiegelow, L. J. Polman, P. Fernandez-Calle, C. Wikkelso, M. Ben Hamida, M. Laska, E. Kott, W. Sulkowski, C. Lucas, N. M. Bornstein, D. Schmitz, M. W. Lammers, A. de Louw, R. J. S. Wise, P. A. van Darn, C. Antozzi, P. Villanueva, P. H. E. Hilkens, C. Constantin, W. Ricart, A. Wolf, M. Gamba, P. Maguire, Alessandro Padovani, B. M. Patten, Marie Sarazin, H. Ackermann, L. Durelli, S. Timsit, Sebastian Jander, B. W. Scheithauer, G. Demir, J. P. Neau, P. Barbanti, A. Brand, N. AraÇ, V. Fischer-Gagnepain, R. Marchioli, G. Serratrice, C. Maugard-Louboutin, G. T. Spencer, D. Lücke, G. Mainardi, K. Harmant Van Rijckevorsel, G. B. Creel, R. Manzanares, Francesco Fortunato, A. May, J. Workman, K. Johkura, E. Fernandez, Carlo Colosimo, L. Calliauw, L. Bet, Félix F. Cruz-Sánchez, M. Dhib, H. Meinardi, F. Carrara, J. Kuehnen, C. Peiro, H. Lassmann, K. Skovgaard Olsen, A. McDonald, L. Sciulli, A. Cobo, A. Monticelli, B. Conrad, J. Bagunya, J. Benitez, V. Desnizza, B. Dupont, O. Delrieu, D. Moraes, J. J. Heimans, F. Garcia Rio, M. Matsumto, A. Fernandez, R. Nermni, R. Chalmers, M. J. Marchau, F. Aguado, P. Velupillai, P. J. Martin, P. Tassan, V. Demarin, A. Engelien, T. Gerriets, Comar, J. L. Carrasco, J. P. Pruvo, A. Lopez de Munain, D. Pavitt, J. Alarcon, Chris H. Polman, B. Guldin, N. Yeni, Hartmut Brückmann, N. Wilczak, H. Szwed, R. Causaran, G. Kyriazis, M. E. Westarp, M. Gasparini, N. Pecora, J. M. Roda, E. Lang, V. Scaioli, David R. Fish, D. Caputo, O. Gratzl, R. Mercelis, A. Perretti, G. Steimetz, I. Link, C. Rigoletto, A. Catafau, G. Lucotte, M. Buti, G. Fagiolari, A. Piqueras, C. Godinot, J. C. Meurice, Erodriguez J. Dominigo, F. Lionnet, H. Grzelec, David J. Brooks, P. M. G. Munro, F. X. Weilbach, M. Maiwald, W. Split, B. Widjaja-Cramer, V. Ozturk, J. Colas, E. Brizioli, J. Calleja, L. Publio, M. Desi, R. Soffietti, P. Cortinovis-Tourniaire, E. F. Gonano, G. Cavaletti, S. Uselli, K. Westerlind, H. Betuel, C. O. Dhiver, H. Guggenheim, M. Hamon, R. Fazio, P. Lehikoinen, A. Esser, B. Sadzot, G. Fink, Angelo Antonini, D. Bendahan, V. Di Carlo, G. Galardi, A. F. Boller, M. Aksenova, Del Fiore, V. de la Sayette, H. Chabriat, A. Nicoletti, A. Dilouya, M. L. Harpin, E. Rouillet, J. Stam, A. Wolters, M. R. Delgado, Eduardo Tolosa, G. Said, A. J. Lees, L. Rinaldi, A. Schulze-Bonhage, MA Ron, C. Lefebvre, E. W. Radü, R. Alvarez, M. L. Bots, P. Reganati, S. Palazzi, A. Poggi, N. J. Scolding, V. Sazdovitch, T. Moreau, E. Maes, M. A. Estelies, P. Petkova, Jose-Felix Marti-Masso, G De La Meilleure, N. Mullatti, M. Rodegher, N. C. Notermans, T. A. T. Warner, S. Aktan, J. P. Louboutin, L. Volpe, C. Scheidt, W. Aust, C. M. Wiles, U. Schneider, S. K. Braekken, W. R. Willems, K. Usuku, Peter M. Rothwell, C. Talamon, M. L. Sacchetti, A. Codina, M. H. Marion, A. Santoro, J. Roda, A. Bordoni, D. J. Taylor, S. Ertas, H. H. Emmen, J. Vichez, V. BesanÇon, R. E. Passingham, M. L. Malosio, A. Vérier, M. Bamberg, A. W. Hansen, E. Mostacero, G. Gaudriault, Marie Vidailhet, B. Birebent, K. Strijckmans, F. Giannini, T. Kammer, I. Araujo, J. Nowicki, E. Nikolov, A. Hutzelmann, R. Gherardi, J. Verroust, L. Austoni, A. Scheller, A. Vazquez, S. Matheron, H. Holthausen, J. M. Gerard, M. Bataillard, S. Dethy, V. H. Patterson, V. Ivanez, N. P. Hirsch, F. Ozer, M. Sutter, C. Jacomet, M. Mora, Bruno Colombo, A. Sarropoulos, T. H. Papapetropoulos, M. Schwarz, D. S. Dinner, N. Acarin, B. Iandolo, J. O. Riis, P. R. J. Barnes, F. Taroni, J. Kazenwadel, L. Torre, A. Lugaresi, I. L. Henriques, S. Pauli, S. Alfonso, Pedro Quesada, A. S. T. Planting, J. M. Castilla, Thomas Gasser, M. Van der Linden, A. Alfaro, E. Nobile-Orazio, G. Popova, W. Vaalburg, F. G. A. van der Mech, L. Williams, F. Medina, J. P. Vernant, J. Yaouanq, B. Storch-Hagenlocher, A. Potemkowski, R. Riva, M. H. Mahagne, M. Ozturk, Ve. Drory, N. Konic, C. Jungreis, A. Pou Serradell, J. L. Gauvrit, G. J. Chelune, S. Hermandez, T. Dingus, L. Hewer, Ch. Koch, M. N. Metz-Lutz, G. Parlato, M. Sinaki, Charles Pierrot-Deseilligny, H. C. Diener, J. Broeckx, J. Weill-Fulazza, M. L. Villar, M. Rizzo, O. Ganslandt, C. Duran, N. A. Fletcher, G. Di Giovacchino, Susan T. Iannaccone, C. Kolig, N. Fabre, H. A. Crockard, Rita Bella, M. Tazir, E. Papagiannuli, K. Overgaard, Emma Ciafaloni, I. Lorenzetti, F. Viader, P. A. H. Millac, I. Montiel, L. H. Visser, M. Palomar, P. L. Murgia, H. Pedersen, Rafael Blesa, S. Seddigh, W. O. Renier, I. Lemahieu, H. M. L. Jansen, L. Rosin, J. Galofre, K. Mattos, M. Pondal, G. M. Hadjigeorgiou, D. Francis, L. Cantin, D. Stegeman, M. Rango, A. B. M. F. Karim, S. Schraff, B. Castellotti, I. Iriarte, E. Laborde, T. J. Tjan, R. Mutani, D. Toni, B. Bergaasco, J. G. Young, C. Klotzsch, A. Zincone, X. Ducrocq, M. Uchuya, O. J. Kolar, A. Quattrone, T. Bauermann, Nereo Bresolin, J. Vallée, B. C. Jacobs, A. Campos, Werner Poewe, J. A. Villanueva, A. W. Kornhuber, A. Malafosse, E. Diez-Tejedor, G. Jungreia, M. J. A. Puchner, A. Komiyama, O. Saribas, V. Volpini, L. Geremia, S. Bressi, A. Nibbio, Timothy E. Bates, T. z. Tzonev, E. Ideman, G. A. Damlacik, G. Martino, G. Crepaldi, T. Martino, Kjell Någren, E. Idiman, D. Samuel, J. M. Perez Trullen, Y. van der Graaf, J. O. Thorell, M. J. M. Dupuis, E. Sieber, R. D'Alessandro, C. Cazzaniga, J. Faiss, A. Tanguy, A. Schick, I. Hoksergen, A. Cardozo, R. Shakarishvili, G. K. Wennlng, J. L. Marti-Vilalta, J. Weissenbach, I. L. Simone, Amalia C. Bruni, Darius J. Adams, C. Weiller, A. Pietrangeli, F. Croria, C. Vigo-Pelfrey, Patricia Limousin, A. Ducros, G. Conti, O. Lindvall, E. Richter, M. Zuffi, A. Nappo, T. Riise, J. Wijdenes, M. J. Fernandez, J. Rosell, P. Vermersh, S. Servidei, M. S. C. Verdugo, F. Gouttiere, W. Solbach, M. Malbezin, I. S. Watanabe, A. Tumac, W. I. McDonald, D. A. Butterfield, P. P. Costa, F. deRino, F. Bamonti, J. M. Cesar, C. H. Lahoz, I. Mosely, M. Starck, M. H. Lemaitre, K. M. Stephan, S. Tex, R. Bokonjic, I. Mollee, L. Pastena, M. Gutierrez, F. Boiler, M. C. Martinez-Para, M. Velicogna, O. Obuz, A. Grinspan, M. Guarino, L. M. Cartier, E. Ruiz, D. Gambi, S. Messina, M. Villa, Michael G. Hanna, J. Valk, Leone Pascual, M. Clanet, Z. Argov, B. Ryniewicz, E. Magni, B. Berlanga, K. S. Wong, C. Gellera, C. Prevost, F. Gonzalez-Huix, R. Petraroli, J. E. G. Benedikz, I. Kojder, C. Bommelaer, L. Perusse, M. R. Bangioanni, Guy M. McKhann, A. Molina, C. Fresquet, E. Sindern, Florence Pasquier, M. J. Rosas, M. Altieri, O. Simoncini, M. Koutroumanidis, C. A. F. Tulleken, M. Dary-Auriol, S. Oueslati, H. Kruyer, I. Nishisho, C. R. Horning, A. Vital, G. V. Czettritz, J. Ph. Neau, B. Mihout, A. Ameri, M. Francis, S. Quasthoff, D. Taussig, S. Blunt, P. Valentin, C. Y. Gao, O. Heinzlef, H. d'Allens, C. Coudero, M. Erfas, G. Borghero, P. J. Modrego Pardo, M. C. Patrosso, N. L. Gershfeld, P. A. J. M. Boon, O. Sabouraud, M. Lara, J. Svennevig, G. L. Lenzi, A. Barrio, H. Villaroya, JosÇ M. Manubens, O. Boespflug-Tanguy, M. Carreras, D. A. Costiga, J. P. Breux, S. Lynn, C. Oliveras Ley, A. G. Herbaut, J. Nos, C. Tornali, Y. A. Hekster, J. L. Chopard, J. M. Manubens, P. Chemouilli, A. Jovicic, F. Dworzak, S. Smirne, S. E. Soudain, B. Gallano, D. Lubach, G. Masullo, G. Izquierdo, A. Pascual Leone Pascual, A. Sessa, V. Freitas, O. Crambes, L. Ouss, G. W. Van Dijk, P. Marchettini, P. Confalonieri, M. Donaghy, A. Munnich, M. Corbo, and M. E. L. van der Burg
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Neurology ,business.industry ,Media studies ,Library science ,Medicine ,Neurology (clinical) ,business - Published
- 1994
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5. Computerized Analysis of Cerebral Blood Flow Autoregulation in Humans
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S. Vorstrup, Jes F. Schmidt, Gunhild Waldemar, Olaf B. Paulson, Allan R. Andersen, and F. Gjerris
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Adult ,Male ,Supine position ,Hemodynamics ,Blood Pressure ,Models, Biological ,Supination ,Cerebral autoregulation ,Oxygen Consumption ,Homeostasis ,Humans ,Medicine ,Autoregulation ,Tomography, Emission-Computed, Single-Photon ,Pharmacology ,medicine.diagnostic_test ,Computers ,business.industry ,Brain ,Blood pressure ,Cerebral blood flow ,Positron emission tomography ,Cerebrovascular Circulation ,Anesthesia ,Female ,Cardiology and Cardiovascular Medicine ,business ,Emission computed tomography ,circulatory and respiratory physiology - Abstract
Summary Cerebral blood flow (CBF) autoregulation in the supine position without tilting using systemic ganglion-blockade (trimetaphane camphosulfonas) combined with lower body vacuum is evaluated. Automatic computerized curve-fitting analysis for assessment of the lower limit (LL) of autoregulation is introduced. Global CBF was evaluated using the arteriovenous-02-difference method in 12 volunteers and in seven patients with chronic arterial hypertension. Classic autoregulatory curves were found in all cases. The LL of CBF autoregulation was 85 ± 5 mm Hg in the volunteers and 113 ± 7 mm Hg in the hypertensive patients. In seven of the volunteers, the autoregulatory study was performed twice in I day; a small but significant shift of LL toward higher blood pressure (BP) values was observed in the second test (3 mm Hg). In five of the hypertensive patients, regional CBF (rCBF) was measured by single-photon emission computed tomography (SPECT) of inhaled xenon-133. The median global CBF decreased from 62 to 45 ml/100 g/min during the mean arterial BP (MABP) de-crease from 110 to 68 mm Hg. The regional distribution of CBF was normal at baseline as well as during hypotension. The method is suitable for pharmacologic studies of cerebral autoregulation.
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- 1990
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6. EC-IC bypass in patients with chronic hemodvnamic insufficiency
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J. Haase, S. Vorstrup, Allan R. Andersen, Gunhild Waldemar, Jes F. Schmidt, and Olaf B. Paulson
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Adult ,Male ,medicine.medical_specialty ,Brain Ischemia ,Postoperative Complications ,Ec ic bypass ,Homeostasis ,Humans ,Medicine ,Carotid Stenosis ,In patient ,Aged ,Cerebral Revascularization ,business.industry ,Hemodynamics ,Brain ,General Medicine ,Middle Aged ,Surgery ,Acetazolamide ,Neurology ,Ischemic Attack, Transient ,Regional Blood Flow ,Female ,Neurology (clinical) ,Tomography, X-Ray Computed ,business ,Xenon Radioisotopes ,Follow-Up Studies - Published
- 1996
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7. [Thrombolytic treatment of acute cerebral infarction]
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G, Boysen, S, Vorstrup, P, Meden, M, Ballegaard, S, Soyka, J, Højgaard, A, Voldsgaard, M, Grønbech-Jensen, Y, Løwbech, A, Karle, and L, Friberg
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Male ,Cerebral Infarction ,Middle Aged ,Brain Ischemia ,Radiography ,Stroke ,Treatment Outcome ,Tissue Plasminogen Activator ,Acute Disease ,Humans ,Female ,Thrombolytic Therapy ,Radionuclide Imaging ,Aged - Abstract
Thrombolytic therapy of acute ischaemic stroke within three hours of the onset of symptoms is approved by health authorities in the USA and Canada, but not in Europe.We report seven patients treated with recombinant tissue plasminogen activator (rtPA) within three hours of the onset of stroke according to an open protocol following internationally accepted guidelines.Three patients with initial severe neurological deficits made an almost complete recovery within the first 24 hours after treatment. Two patients had a partial remission, and two patients had no benefit. There were no bleeding complications.The present results are in accordance with the Cochrane Library's analysis of published data regarding thrombolytic therapy.
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- 2001
8. [Ischemic cerebral apoplexy in children]
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A, Jung, A, Wagner, K V, Andersen, M, Juhler, and S, Vorstrup
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Male ,Neurologic Examination ,Endocarditis ,Infant ,Cerebral Infarction ,Prognosis ,Magnetic Resonance Imaging ,Diagnosis, Differential ,Paresis ,Stroke ,Child, Preschool ,Humans ,Female ,Cerebrovascular Trauma ,Child ,Tomography, X-Ray Computed ,Cerebral Hemorrhage - Abstract
During two years we identified eight children aged 1.5-10 years with cerebral ischaemic stroke. Prior to the stroke seven of eight children were in full health. Predisposing factors were endocarditis and trauma. Four children had prodomal symptoms prior to the infarction. All had acute hemiparesis on admission. Three of the children had fever, and five had varicellazoster infection three to 18 months prior to the stroke. Three children had convulsions. Seven of eight children had stenoses or occlusions of the middle cerebral or the basilar artery. Five children have persistent deficits and none have died. The children did not have coagulopathies, hypertension or arteriosclerosis. Echocardiography did not show patent foramen ovale. Early clinical and neuroradiological investigations are of importance in reaching the appropriate diagnosis.
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- 2000
9. [Guillain-Barre syndrome]
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C, Krarup and S, Vorstrup
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Humans ,Guillain-Barre Syndrome - Published
- 2000
10. INTELLECTUAL FUNCTION, REGIONAL CEREBRAL BLOOD FLOW (CBF) AND CT-SCANNING IN PATIENTS WITH TKANSIENT ISCHAEMIC ATTACKS (TIA) BEFORE AND AFTER CAROTID ENDARTERECTOMY
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L. Henriksen, Gudrun Boysen, S. Vorstrup, Ralf Hemmingsen, B. Mejsholm, J. Lester, and H.C. Enqell
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,General Medicine ,Carotid endarterectomy ,Intellectual function ,Neurology ,Cerebral blood flow ,Internal medicine ,medicine ,Cardiology ,In patient ,Neurology (clinical) ,business - Published
- 2009
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11. REGIONAL CEREBRAL BLOOD FLOW BEFORE AND AFTER VASCULAR SURGERY IN PATIENTS WITH TRANSIENT ISCHEMIC ATTACKS WITH 133XENON INHALATION TOMOGRAPHY
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L. Henriksen, Niels A. Lassen, S. Vorstrup, H. Lindewald, and Ralf Hemmingsen
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medicine.medical_specialty ,Inhalation ,business.industry ,General Medicine ,Vascular surgery ,Neurology ,Cerebral blood flow ,Anesthesia ,Internal medicine ,medicine ,Cardiology ,Transient (computer programming) ,In patient ,Neurology (clinical) ,Tomography ,business - Published
- 2009
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12. CHRONIC ANTIHYPERTENSIVE TREATMENT RESTORES NORMAL AUTOREGULATION TO THE CEREBRAL CIRCULATION IN THE RAT
- Author
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O. Brændstrup, J.O. Jarden, S. Vorstrup, D.I. Barry, David I. Graham, U.G. Svendsen, and S. Strandgaard
- Subjects
medicine.medical_specialty ,Cerebral circulation ,Neurology ,business.industry ,Internal medicine ,medicine ,Cardiology ,Autoregulation ,Neurology (clinical) ,General Medicine ,business ,Surgery - Published
- 2009
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13. The Effect of Extracranial-intracranial Bypass on Cerebral Blood Flow
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Olaf B. Paulson, Gudrun Boysen, Niels A. Lassen, S. Vorstrup, and H. C. Engell
- Subjects
Cerebral circulation ,medicine.medical_specialty ,Extracranial intracranial bypass ,Neurology ,Cerebral blood flow ,business.industry ,Internal medicine ,Cardiology ,medicine ,Neurology (clinical) ,General Medicine ,Cerebral perfusion pressure ,business - Published
- 2009
- Full Text
- View/download PDF
14. Effect of acute and prolonged treatment with propranolol on cerebral blood flow and cerebral oxygen metabolism in healthy volunteers
- Author
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S. Vorstrup, Olaf B. Paulson, Peter Lund Madsen, and Jes F. Schmidt
- Subjects
Adult ,Male ,Central nervous system ,Administration, Oral ,chemistry.chemical_element ,Hemodynamics ,Blood Pressure ,Propranolol ,Oxygen ,Heart Rate ,medicine ,Humans ,Pharmacology (medical) ,Volunteer ,Tomography, Emission-Computed, Single-Photon ,Pharmacology ,Dose-Response Relationship, Drug ,General Medicine ,Blood flow ,Metabolism ,medicine.anatomical_structure ,chemistry ,Cerebral blood flow ,Cerebrovascular Circulation ,Anesthesia ,Injections, Intravenous ,Female ,medicine.drug - Abstract
The effect of acute and long-term treatment with propranolol on cerebral blood flow (CBF) and the cerebral metabolic rate of oxygen (CMRO2) has been studied in 8 young healthy volunteers. CBF was measured by 133Xe-inhalation and single photon emission computer tomography, and CMRO2 was calculated from the arterio-venous oxygen difference and CBF. Studies were done before and 1 h after i.v. injection of 5 mg propranolol and after three weeks on oral propranolol 80 mg/d for 1 week and 160 mg/d for 2 weeks. Cerebrovascular CO2 reactivity in terms of the A-V oxygen difference was tested on all three occasions during hypercapnia and hyperventilation. CBF, CMRO2 and cerebrovascular CO2 reactivity remained stable both after acute and after 3 weeks of treatment with propranolol.
- Published
- 1990
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- View/download PDF
15. [Does mad cow disease cause the new variant of Creutzfeldt-Jakob disease?]
- Author
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T, Blättler, H, Laursen, and S, Vorstrup
- Subjects
Central Nervous System ,Encephalopathy, Bovine Spongiform ,Amyloid ,Prions ,Animals ,Humans ,Point Mutation ,Cattle ,Protein Precursors ,Creutzfeldt-Jakob Syndrome ,Prion Proteins ,Prion Diseases - Published
- 1998
16. [Is crazy cow disease the cause of the new variant of Creutzfeldt-Jakob syndrome?]
- Author
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T, Blättler, H, Laursen, and S, Vorstrup
- Subjects
Encephalopathy, Bovine Spongiform ,Animals ,Humans ,Cattle ,Creutzfeldt-Jakob Syndrome - Abstract
In 1986, veterinary pathologists discovered spongiform encephalopathy in the brains of two cows in the UK. These two cases turned out to be the beginning of epidemic bovine spongiform encephalopathy (BSE), which culminated in 1992 with more than 3000 cases monthly. In 1996, the British government announced that a distinct variant of CJD (vCJD) had occurred in ten young people in the UK. The cases were notified within the past 1 1/2 years. A link to BSE seemed likely. Transmission studies of the two diseases have demonstrated similar properties such as incubation time, neuropathology and glycoform profile of the pathologically altered prionprotein. In effect, vCJD is very likely to represent human BSE. Epidemiological data suggest that BSE transmission to humans may have occurred only in a limited number of cases. Future studies will have to confirm this. So far, no increase in the incidence of vCJD has been noticed.
- Published
- 1998
17. [Prion diseases]
- Author
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S, Vorstrup and O B, Paulson
- Subjects
Humans ,Prion Diseases - Published
- 1996
18. [Creutzfeldt-Jakob disease--a human prion disease]
- Author
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E, Buchwald and S, Vorstrup
- Subjects
Encephalopathy, Bovine Spongiform ,Prions ,Protein Conformation ,Animals ,Brain ,Humans ,Cattle ,Creutzfeldt-Jakob Syndrome ,Prion Diseases - Abstract
The human prion diseases, Creutzfeldt-Jakob disease, Gerstmann-Strøaussler-Scheinker syndrome and kuru, are neurodegenerative disorders sharing clinical features of rapidly progressive neurodegenerative dementia and cerebellar symptoms of marked ataxia and tremor, resulting in death within one year after onset. Similar diseases have been described in animals, such as scrapie in sheep and goats, and bovine spongiform encephalopathy in cattle (mad cow disease). The very long incubation period, the lack of a host immune response, and a neurological triad of spongiosis, astrocytosis and amyloid plaque formation have suggested these diseases to have a common aetiology. A highly effective transmissible agent, fundamentally different from viruses, has been identified and the term prion adopted to distinguish it from viruses and viroids. CJD is unique in occurring both in inherited, sporadic and acquired forms.
- Published
- 1996
19. [Myasthenia gravis and thymectomy]
- Author
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S, Vorstrup
- Subjects
Myasthenia Gravis ,Humans ,Thymectomy - Published
- 1996
20. [Abnormal neurological findings at first admission in patients with schizophrenia or schizophreniform disorders. Results of computer tomography and measurement of regional cerebral blood flow]
- Author
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P J, Rubin, E S, Vorstrup, R P, Hemmingsen, H S, Andersen, B B, Bendsen, N J, Strømsø, J K, Larsen, and T G, Bolwig
- Subjects
Adult ,Male ,Neurologic Examination ,Brain Diseases ,Adolescent ,Denmark ,Middle Aged ,Patient Admission ,Psychotic Disorders ,Cerebrovascular Circulation ,Schizophrenia ,Humans ,Female ,Tomography, X-Ray Computed - Abstract
Forty-five patients with schizophrenia or schizophreniform disorder admitted to hospital for the first time had a neurological examination, including integrative sensory and complex motor acts, by a trained neurologist. The patients were studied by CT and regional cerebral blood flow as well. A control group of 24 healthy volunteers was included. The patients had significantly more neurological abnormalities (NA) than the healthy volunteers. Medication did not explain the discrepancy. The NA were associated with sulcal enlargement and smaller brains as visualized by CT but not with ventricular enlargement. There was no association between the regional flow values and NA.
- Published
- 1996
21. [Thrombolytic therapy in acute cerebral ischemia]
- Author
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G, Boysen and S, Vorstrup
- Subjects
Europe ,Plasminogen Activators ,Tissue Plasminogen Activator ,Acute Disease ,Humans ,Thrombolytic Therapy ,Brain Ischemia - Published
- 1996
22. Multiple autoimmune manifestations in monoclonal gammopathy of undetermined significance and chronic lymphocytic leukemia
- Author
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V, Jønsson, B, Svendsen, S, Vorstrup, C, Krarup, H, Schmalbruch, K, Thomsen, N H, Heegaard, A, Wiik, and M M, Hansen
- Subjects
Adult ,Aged, 80 and over ,Male ,POEMS Syndrome ,Paraproteinemias ,Humans ,Autoimmunity ,Female ,Middle Aged ,Leukemia, Lymphocytic, Chronic, B-Cell ,Aged ,Antibodies, Anti-Idiotypic ,Autoimmune Diseases - Abstract
In 18 cases of monoclonal gammopathy of undetermined significance, MGUS (monoclonal gammopathy of undetermined significance), admitted for diagnosed or suspected peripheral neuropathy, 11 patients showed other co-existing autoimmune manifestations. Two had POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, M-component, and skin symptoms), the others mainly endocrinopathy and polyclonal pseudolymphoma. There were 13 cases of sensorimotor neuropathy, two cases of neuritis, while neuropathy could not be confirmed in three cases. Compared with a retrospective review of autoimmunity in a randomly selected CLL (chronic lymphocytic leukemia) cohort of 115 patients, 13 out of 42 patients with clinical and/or laboratory features of autoimmunity showed co-expression of autoimmune signs, the dominating traits being Coombs positive AIHA (auto-immune hemolytic anemia), platelet autoantibodies, endocrinopathy mainly associated with the thyroid gland, serological and/or rheumatological symptoms, but only one case of sensorimotor neuropathy. Viewed from a current model of acquired autoimmunity it is perhaps not surprising that such autoimmunity is seen predominantly in patients with monoclonal gammopathy. Thus, a high concentration of cross-reacting polyreactive autoantibodies related to the M-component might be present in these patients. Furthermore, quantitative defects of the immunoglobulins including the hypogammaglobulinemia associated with M-components can presumably give rise to a defect of the anti-idiotypic network's regulation of natural autoantibodies and autoimmune manifestations in vivo. Such autoimmune manifestations, which are easily overlooked in CLL may call for additional treatment with immunosuppression and/or intravenous, polyclonal IgG.
- Published
- 1996
23. Regional Cerebral Blood Flow in Acute Stroke: Comparison of Two Calcium Antagonists
- Author
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Per Soelberg Sørensen, S. Vorstrup, Charlotte Videbæk, and Olaf B. Paulson
- Subjects
medicine.medical_specialty ,business.industry ,Ischemia ,chemistry.chemical_element ,Calcium ,medicine.disease ,Pathophysiology ,Cerebral blood flow ,chemistry ,Anesthesia ,Internal medicine ,Calcium ion homeostasis ,medicine ,Cardiology ,business ,Early phase ,Cell damage ,Acute stroke - Abstract
Much effort has been placed in the investigation of the pathophysiological mechanisms that lead to irreversible cell damage following ischemia. Severalstudies now sem to indicate that disturbances in calcium ion homeostasis may be responsible for the initiation of a series of events leading to irreversible cell damage following cerebral ischemia (for review see Siesjo 1981; Wieloch and Siesjo 1982). It might therefore be expected that treatment with calcium antagonists in the early phase after cerebral ischemia could prevent the intracellular calcium ion accumulation. These drugs might furthermore increase cerebral blood flow (CBF) by dilation of the vessels surrounding the ischemic area. However, conflicting results from experimental studies have been reported.
- Published
- 1994
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24. Changes in the Regional Activation Pattern in the Normal Human Brain During Dreaming and Rapid Eye Movement Sleep as Measured with Single Photon Emission Computerized Tomography
- Author
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S. Holm, N. A. Lassen, Gordon Wildschiødtz, L. Friberg, S. Vorstrup, and Peter Lund Madsen
- Subjects
media_common.quotation_subject ,Rapid eye movement sleep ,Eye movement ,Single photon emission computerized tomography ,Human brain ,Sleep in non-human animals ,humanities ,Activation pattern ,medicine.anatomical_structure ,medicine ,Functional significance ,Dream ,Psychology ,Neuroscience ,psychological phenomena and processes ,media_common - Abstract
In the sleep-wake, cycle, rapid eye movement (REM) sleep represents a distinct mental condition, as it is closely correlated to the dream experience (Dement and Kleitman 1957). The present understanding of the dream phenomenon is very limited. We do not know the functional significance of dreams and the physiological state of the dreaming brain is largely unknown.
- Published
- 1993
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25. Mental stress and cognitive performance do not increase overall level of cerebral O2 uptake in humans
- Author
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Peter Lund Madsen, Niels A. Lassen, Søren Holm, H. Jorgensen, S. Vorstrup, Niels Juel Christensen, Gordon Wildschiødtz, Lars Friberg, and Jes F. Schmidt
- Subjects
Adult ,Male ,medicine.medical_specialty ,Physiology ,media_common.quotation_subject ,Hemodynamics ,Arousal ,Cognition ,Oxygen Consumption ,Physiology (medical) ,Internal medicine ,Heart rate ,medicine ,Humans ,Effects of sleep deprivation on cognitive performance ,media_common ,Brain Chemistry ,Resting state fMRI ,business.industry ,Electroencephalography ,Up-Regulation ,Cerebral blood flow ,Cardiology ,Lactates ,Female ,business ,Neuroscience ,Stress, Psychological ,Vigilance (psychology) - Abstract
We measured cerebral metabolic rate of oxygen (CMRO2), cerebral blood flow (CBF), and cerebral lactate output during rest, during the execution of mental arithmetic, and during mental stress induced by physical and psychological annoyance. Measurements were performed in healthy volunteers by use of the Kety-Schmidt technique with 133Xe as the inert gas. Electroencephalographic desynchronization and highly significant increases in plasma catecholamines and heart rate verified that the test measurements were performed during conditions differing distinctly from the resting state. In accordance with an earlier study (Sokoloff et al. J. Clin. Invest. 34: 1101–1108, 1985), a minimal and nonsignificant 1% reduction of global CMRO2 during mental arithmetic was observed, signifying that this form of mental activation was unassociated with any detectable increase in overall cerebral synaptic activity. Mental stress induced a slight but highly significant (P less than 0.002) 6% reduction in global CMRO2. This finding is in contrast to results from earlier investigations and contradicts the generally accepted notion of an association between mental arousal and a diffuse upregulation of cerebral synaptic activity. During mental arithmetic and mental stress, cerebral lactate output increased by 207 and 344%, respectively, but because of large individual variations in the measured responses, the elevations reached statistical significance only during mental arithmetic.
- Published
- 1992
26. Identification of Hemodynamic Patients for EC-IC Bypass Surgery
- Author
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J. Haase, S. Vorstrup, G. Waldemar, O. B. Paulson, and J. Schmidt
- Subjects
medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Hemodynamics ,Orthostatic vital signs ,Positron emission tomography ,medicine.artery ,Internal medicine ,Concomitant ,Carotid artery occlusion ,Angiography ,medicine ,Cardiology ,Internal carotid artery ,Acetazolamide ,business ,medicine.drug - Abstract
Recurrent ischemic symptoms from a hemisphere where the internal carotid artery (ICA) is occluded are either embolic or hemodynamic. Distinguishing between these two etiologies is not possible on clinical grounds alone, although multiple, brief attacks including limb shaking are suggestive of hemodynamic origin (Levine et al. 1989). In particular, when the symptoms occur in relation to orthostatic changes, a clinical suspicion of an inadequate regional flow arises. Nevertheless, in most of these patients the setting of clinical symptoms alone and even when supplemented by angiography and CT will not identify the hemodynamic cases, and additional studies are needed. Measurement of CBF during CO2 inhalation (Levine et al. 1989; Norrving et al. 1982) or after intravenous administration of acetazolamide (Vorstrup et al. 1986) has been used to evaluate the cerebral vasodilatory capacity. The development of positron emission tomography has permitted concomitant measurement of CBF, oxygen extraction fraction, and cerebral metabolism for oxygen (CMRO2), which identifies critically perfused areas during baseline conditions. In addition, measurement of CBF and cerebral blood volume (CB) can be applied for this purpose (Gibbs et al. 1984).
- Published
- 1992
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27. Focal reductions of cerebral blood flow in amyotrophic lateral sclerosis: a [99mTc]-d,l-HMPAO SPECT study
- Author
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G, Waldemar, S, Vorstrup, T S, Jensen, A, Johnsen, and G, Boysen
- Subjects
Male ,Tomography, Emission-Computed, Single-Photon ,Amyotrophic Lateral Sclerosis ,Organotechnetium Compounds ,Middle Aged ,Technetium Tc 99m Exametazime ,Central Nervous System Diseases ,Cerebrovascular Circulation ,Oximes ,Humans ,Female ,Tomography, X-Ray Computed ,Xenon Radioisotopes ,Aged - Abstract
We investigated regional cerebral blood flow (rCBF) using the [99mTc]-d,l-HMPAO technique with brain dedicated high resolution single photon emission computer tomography (SPECT) in 14 consecutive patients with amyotrophic lateral sclerosis (ALS), median age 62 years (45-77). Global CBF, expressed in % relative to the cerebellum, was significantly lower (P less than 0.05) in the ALS group (80.5 +/- 6.7%) than in the control group of 14 age-matched healthy volunteers (87.0 +/- 7.5%). Eight patients (57%) had abnormal rCBF distribution maps with reduced flow, primarily in the frontal lobes. Three of the 8 patients with abnormal rCBF had mild to moderate dementia and another one had mild aphasia. None of the patients with normal rCBF distribution maps had dementia. In the group of ALS patients as a whole rCBF was significantly reduced in the frontal cortex, the hippocampus, and the central white matter. We conclude that reduced rCBF, primarily in the frontal lobes, is a frequent finding in patients with ALS. The decreased rCBF may be associated with cognitive deficits and is most likely caused by neuronal degeneration and reduced metabolic needs.
- Published
- 1992
28. Cerebral O2 metabolism and cerebral blood flow in humans during deep and rapid-eye-movement sleep
- Author
-
Niels A. Lassen, Peter Lund Madsen, Søren Holm, S. Vorstrup, Gordon Wildschiødtz, Jes F. Schmidt, and Lars Friberg
- Subjects
Adult ,Male ,Physiology ,Central nervous system ,Rapid eye movement sleep ,Hemodynamics ,Sleep, REM ,Polysomnography ,Oxygen Consumption ,Physiology (medical) ,medicine ,Humans ,Wakefulness ,Slow-wave sleep ,medicine.diagnostic_test ,business.industry ,Brain ,Sleep in non-human animals ,medicine.anatomical_structure ,Cerebral blood flow ,Anesthesia ,Cerebrovascular Circulation ,Female ,Sleep Stages ,business - Abstract
It could be expected that the various stages of sleep were reflected in variation of the overall level of cerebral activity and thereby in the magnitude of cerebral metabolic rate of oxygen (CMRO2) and cerebral blood flow (CBF). The elusive nature of sleep imposes major methodological restrictions on examination of this question. We have now measured CBF and CMRO2 in young healthy volunteers using the Kety-Schmidt technique with 133Xe as the inert gas. Measurements were performed during wakefulness, deep sleep (stage 3/4), and rapid-eye-movement (REM) sleep as verified by standard polysomnography. Contrary to the only previous study in humans, which reported an insignificant 3% reduction in CMRO2 during sleep, we found a deep-sleep-associated statistically highly significant 25% decrease in CMRO2, a magnitude of depression according with studies of glucose uptake and reaching levels otherwise associated with light anesthesia. During REM sleep (dream sleep) CMRO2 was practically the same as in the awake state. Changes in CBF paralleled changes in CMRO2 during both deep and REM sleep.
- Published
- 1991
29. Human regional cerebral blood flow during rapid-eye-movement sleep
- Author
-
Lars Friberg, Gordon Wildschiødtz, S. Vorstrup, Søren Holm, Peter Lund Madsen, and Niels A. Lassen
- Subjects
Adult ,Male ,Central nervous system ,Rapid eye movement sleep ,Sleep, REM ,Electroencephalography ,Technetium Tc 99m Exametazime ,Oximes ,medicine ,Premovement neuronal activity ,Humans ,Tomography, Emission-Computed, Single-Photon ,medicine.diagnostic_test ,Organotechnetium Compounds ,Sleep in non-human animals ,Frontal Lobe ,medicine.anatomical_structure ,Neurology ,Cerebral blood flow ,Cerebral cortex ,Cerebrovascular Circulation ,Wakefulness ,Female ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,Psychology ,Neuroscience ,psychological phenomena and processes - Abstract
Owing to the coupling between CBF and neuronal activity, regional CBF is a reflection of neural activity in different brain regions. In this study we measured regional CBF during polysomnographically well-defined rapid-eye-movement (REM) sleep by the use of single photon emission computerized tomography and the new tracer 99mTc- dl-hexamethylpropyleneamine. Eleven healthy volunteers aged between 22 and 27 years were studied. CBF was measured on separate nights during REM sleep and during EEG-verified wakefulness. On awakening from REM sleep, all subjects reported visual dreams. During REM sleep CBF increased by 4% (p < 0.01) in the associative visual area, while it decreased by 9% (p < 0.01) in the inferior frontal cortex. The CBF increase in the associative visual area suggests that activation of cerebral structures processing complex visual material is correlated to visual dream experiences. On the other hand, the reduced involvement of the inferior frontal cortex observed during REM sleep might explain the poor temporal organization and bizarreness often experienced in dreams.
- Published
- 1991
30. Cerebral blood flow and metabolism during sleep
- Author
-
P L, Madsen and S, Vorstrup
- Subjects
Cerebrovascular Circulation ,Animals ,Brain ,Humans ,Sleep - Abstract
A review of the current literature regarding sleep-induced changes in cerebral blood flow (CBF) and cerebral metabolic rate (CMR) is presented. Early investigations have led to the notion that dreamless sleep was characterized by global values of CBF and CMR practically at the level of wakefulness, while rapid eye movement (REM) sleep (dream sleep) was a state characterized by a dramatically increased level of CBF and possibly also of CMR. However, recent investigations firmly contradict this notion. Investigations on CBF and CMR performed during non-REM sleep, taking the effect of different levels of sleep into consideration, show that light sleep (stage II) is characterized by global levels of CBF and CMR only slightly reduced by 3-10% below the level associated with wakefulness, whereas CBF and CMR during deep sleep (stage III-IV) is dramatically reduced by 25-44%. Furthermore, recent data indicate that global levels of CBF and CMR are about the same during REM sleep as in wakefulness. On the regional level, deep sleep seems to be associated with a uniform decrease in regional CBF and CMR. Investigations concerning regional CBF and CMR during REM sleep are few but data from recent investigations seem to identify site-specific changes in regional CBF and CMR during REM sleep. CBF and CMR are reflections of cerebral synaptic activity and the magnitude of reduction in these variables associated with deep sleep indicates that overall cerebral synaptic activity is reduced to approximately one-half the level associated with wakefulness, while cerebral synaptic activity levels during REM sleep are similar to wakefulness. However, even though the new understanding of CBF and CMR during sleep provides significant and important information of the brain's mode of working during sleep, it does not at its current state identify the physiological processes involved in sleep or the physiological role of sleep.
- Published
- 1991
31. Prion-related diseases and Creutzfeldt-Jakob disease (subacute spongiform encephalopathy)
- Author
-
F. Boiler, Olaf B. Paulson, P. Soelberg Sørensen, S. Vorstrup, and C. Duyckaerts
- Subjects
Pathology ,medicine.medical_specialty ,Neurology ,business.industry ,medicine ,Neurology (clinical) ,Subacute spongiform encephalopathy ,Disease ,business - Published
- 1996
- Full Text
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32. Subject Index Vol. 6, 1996
- Author
-
Leeanne Grigg, Michael G. Hennerici, Jeffrey I. Cochius, Patrick Fery, Fumihito Yoshii, P. Trouillas, J. Bogousslavsky, Richard J. Butterworth, Daniel B. Hoch, Masao Nagayama, Fred Plum, G. Boysen, Paul Capel, Steve Jeffery, N. Kopp, Philip M.W. Bath, S. Vorstrup, Jens Østergaard Riis, Werner Hacke, Stefan Schwab, Alfred Aschoff, Jean E. Kerr, Michael Daffertshofer, Youichi Ohnuki, Margrethe Ingeman-Nielsen, Karsten Vestergaard, Stephen M. Davis, Rüdiger von Kummer, John L. Hopper, Richard P. Gerraty, Bernd Pohlmann-Eden, J.C. Froment, Bernard Infeld, John Voukelatos, Jerzy Hildebrand, N. Nighoghossian, Nadège Van Blercom, G. Riche, Stefan Ries, Yukito Shinohara, Michio Tsuda, Wolfgang Steinke, Tomiko Nagayama, Friedrich Albert, Klaus Rieke, Peter Mitchell, Serge Blecic, Thierry Dhaene, John Soo, David N. Bowser, Hugh S. Markus, S. Ricci, Yufeng Zhang, and Grethe Andersen
- Subjects
Index (economics) ,Neurology ,business.industry ,Statistics ,Medicine ,Subject (documents) ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,business - Published
- 1996
- Full Text
- View/download PDF
33. Clinical and neurological deterioration in schizophrenia: A prospective 5 years follow up of first admission cases
- Author
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A. Madsen, S. Vorstrup, and Ralf Hemmingsen
- Subjects
Pediatrics ,medicine.medical_specialty ,First admission ,business.industry ,Schizophrenia (object-oriented programming) ,medicine ,business ,Biological Psychiatry - Published
- 1997
- Full Text
- View/download PDF
34. Effect of captopril on the cerebral circulation in chronic heart failure
- Author
-
Olaf B. Paulson, S. Holm, Jens O. Jarden, John Godtfredsen, and S. Vorstrup
- Subjects
Adult ,Male ,medicine.medical_specialty ,Captopril ,Clinical Biochemistry ,chemistry.chemical_element ,Hemodynamics ,Blood Pressure ,Biochemistry ,Oxygen ,Cerebral circulation ,Internal medicine ,medicine ,Humans ,Heart Failure ,Inhalation ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Blood pressure ,chemistry ,Cerebral blood flow ,Cerebrovascular Circulation ,Heart failure ,Anesthesia ,Cardiology ,Female ,business ,Xenon Radioisotopes ,circulatory and respiratory physiology ,medicine.drug - Abstract
Cerebral blood flow (CBF) was investigated in 8 patients with chronic heart failure (CHF) (functional class III) and in twelve controls before and after administration of 6.25 mg and 25 mg captopril, respectively. In four controls, CBF was measured by the intracarotid xenon-133 (133Xe) injection technique using stationary external detectors, while inhalation of 133Xe and single photon emission computer tomography was used in the remaining cases. In the control group, the cerebral metabolic rate for oxygen was calculated from measurements of the arterio-venous oxygen difference as well. Mean CBF was significantly (P less than 0.01) lower in the patients with CHF as compared to our controls. Following captopril administration the mean arterial blood pressure decreased in the CHF patients, ranging from 5 to 40%. Three patients showed decreases of blood pressure to values of 56, 65, and 76 mm Hg, but no symptoms of cerebral hypoperfusion were elicited. CBF was unchanged after captopril administration, even in the patients showing a marked reduction in blood pressure. In the control group, the blood pressure, CBF and the cerebral metabolic rate for oxygen remained essentially constant following captopril administration. It is concluded that the cerebral circulation is well preserved during captopril treatment of chronic heart failure. This might be explained by a shift of the lower limit of CBF autoregulation towards lower blood pressure levels.
- Published
- 1986
- Full Text
- View/download PDF
35. Hemodilution increases cerebral blood flow in acute ischemic stroke
- Author
-
S Vorstrup, B Brun, A R Andersen, M Juhler, and G Boysen
- Subjects
Male ,Ischemia ,Hemodynamics ,Hematocrit ,Brain Ischemia ,medicine ,Humans ,Aged ,Whole blood ,Advanced and Specialized Nursing ,Hemodilution ,medicine.diagnostic_test ,business.industry ,Cerebral infarction ,Blood flow ,Middle Aged ,medicine.disease ,Cerebrovascular Disorders ,Cerebral blood flow ,Cerebrovascular Circulation ,Anesthesia ,Acute Disease ,Female ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,business ,Perfusion ,Xenon Radioisotopes ,Tomography, Emission-Computed - Abstract
We measured cerebral blood flow in 10 consecutive, but selected, patients with acute ischemic stroke (less than 48 hours after onset) before and after hemodilution. Cerebral blood flow was measured by xenon-133 inhalation and emission tomography, and only patients with focal hypoperfusion in clinically relevant areas were included. Hemodilution was done according to the hematocrit level: for a hematocrit greater than or equal to 42%, 500 ml whole blood was drawn and replaced by the same volume of dextran 40; for a hematocrit between 37% and 42%, only 250 ml whole blood was drawn and replaced by 500 cc of dextran 40. Mean hematocrit was reduced by 16%, from 46 +/- 5% (SD) to 39 +/- 5% (SD) (p less than 0.001). Cerebral blood flow increased in both hemispheres by an average of 20.9% (p less than 0.001). Regional cerebral blood flow increased in the ischemic areas in all cases, on an average of 21.4 +/- 12.0% (SD) (p less than 0.001). In three patients, a significant redistribution of flow in favor of the hypoperfused areas was observed, and in six patients, the fractional cerebral blood flow increase in the hypoperfused areas was of the same magnitude as in the remainder of the brain. In the last patient, cerebral blood flow increased relatively less in the ischemic areas. Our findings show that cerebral blood flow increases in the ischemic areas after hemodilution therapy in stroke patients. The marked regional cerebral blood flow increase seen in some patients could imply an improved oxygen delivery to the ischemic tissue.
- Published
- 1989
- Full Text
- View/download PDF
36. Intracranial pressure, conductance to cerebrospinal fluid outflow, and cerebral blood flow in patients with benign intracranial hypertension (pseudotumor cerebri)
- Author
-
S. Vorstrup, P. Soelberg Sørensen, F. Gjerris, and Olaf B. Paulson
- Subjects
Inhalation ,business.industry ,Pseudotumor cerebri ,Hemodynamics ,Blood flow ,medicine.disease ,Cerebrospinal fluid ,Neurology ,Cerebral blood flow ,Anesthesia ,Cerebrospinal fluid circulation ,Medicine ,Neurology (clinical) ,Nuclear medicine ,business ,Intracranial pressure - Abstract
Intracranial pressure, conductance to cerebrospinal fluid outflow, and cerebral blood flow were investigated in 14 patients with benign intracranial hypertension (pseudotumor cerebri). Intracranial pressure was increased in 9 patients (20 to 30 mm Hg), borderline in 4 patients (15 to 18 mm Hg), and normal in 1 patient (8 mm Hg). Six patients had plateau waves, and all had B waves in more than 50% of the monitored time. Conductance to cerebrospinal fluid outflow, measured by a lumbo-lumbar perfusion method, was significantly reduced: 0.042 ml X mm Hg-1 X min-1 (+/- 0.004 [SEM]; normal, more than 0.080 ml X mm Hg-1 X min-1). Cerebral blood flow was measured by xenon 133 inhalation and single photon emission computer tomography. Mean hemispheric flow was normal in all cases, averaging 59 +/- 9 ml X 100 gm-1 X min-1. Only 2 patients showed focal low-flow areas. Thus, a disturbance of cerebrospinal fluid circulation seems to be of pathogenetic significance in benign intracranial hypertension.
- Published
- 1985
- Full Text
- View/download PDF
37. Ischemic penumbra results in incomplete infarction: is the sleeping beauty dead?
- Author
-
S Vorstrup and N A Lassen
- Subjects
Advanced and Specialized Nursing ,medicine.medical_specialty ,business.industry ,Cerebral infarction ,media_common.quotation_subject ,Penumbra ,Infarction ,Cerebral Infarction ,medicine.disease ,Brain Ischemia ,Brain ischemia ,Internal medicine ,Beauty ,Cats ,Cardiology ,Animals ,Humans ,Medicine ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,business ,media_common - Published
- 1984
- Full Text
- View/download PDF
38. Cerebral Blood Flow in Rats with Renal and Spontaneous Hypertension: Resetting of the Lower Limit of Autoregulation
- Author
-
Svend Strandgaard, U. G. Svendsen, T. G. Bolwig, O. Braendstrup, S. Vorstrup, R. Hemmingsen, David I. Barry, and David I. Graham
- Subjects
Male ,medicine.medical_specialty ,Mean arterial pressure ,Hypertension, Renal ,Brain damage ,Lower limit ,Brain Ischemia ,Cerebral circulation ,Internal medicine ,medicine ,Animals ,Homeostasis ,Autoregulation ,Chronic hypertension ,business.industry ,Rats, Inbred Strains ,Rats ,Neurology ,Cerebral blood flow ,Cerebrovascular Circulation ,Anesthesia ,Hypertension ,Cardiology ,Brain lesions ,Neurology (clinical) ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,circulatory and respiratory physiology - Abstract
The effect of chronic hypertension on cerebral blood flow (CBF) was studied in anaesthetised rats. CBF was measured with the intracarotid 133Xe injection method. Rats with spontaneous and renal hypertension were compared with normotensive controls. The lower limit of autoregulation was determined during controlled haemorrhage. In the normotensive rats, CBF remained constant until mean arterial pressure (MAP) had decreased to the range of 50–69 mm Hg. Thereafter, CBF decreased with each further decrease in MAP. In both types of hypertensive rats, CBF remained constant until MAP had decreased to the range of 70–89 mm Hg. Thus, a 20-mm Hg shift of the lower limit of CBF autoregulation was found in both spontaneous and renal hypertensive rats. A neuropathological study revealed ischaemic brains lesions in half of the hypertensive rats following hypotension, whereas only a single lesion was found in one of six normotensive rats. No ischaemic brain lesions were found in a control study in which CBF was shown to be stable over a 2 1/2-h period. In conclusion, hypertensive rats showed a shift of the lower limit of CBF autoregulation as well as an increased susceptibility to ischaemic brain damage during hypotension. These findings presumably reflect hypertensive structural changes in the cerebral circulation.
- Published
- 1982
- Full Text
- View/download PDF
39. Cerebral blood flow in patients with normal-pressure hydrocephalus before and after shunting
- Author
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Per Soelberg Sørensen, Thomsen Am, Olaf B. Paulson, Jeppe Romme Christensen, F. Gjerris, and S. Vorstrup
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Adult ,Male ,Hemodynamics ,Cerebrospinal fluid ,Normal pressure hydrocephalus ,Humans ,Medicine ,Postoperative Period ,Aged ,Cerebrospinal Fluid ,business.industry ,Blood flow ,Middle Aged ,medicine.disease ,Cerebrospinal Fluid Shunts ,Hydrocephalus ,Shunting ,Cerebral blood flow ,Cerebrovascular Circulation ,Anesthesia ,Female ,Tomography, X-Ray Computed ,business ,Nuclear medicine ,Perfusion - Abstract
✓ Cerebral blood flow (CBF) was measured by xenon-133 inhalation and single photon emission tomography in 17 demented patients with normal-pressure hydrocephalus before and after shunt treatment. All patients had a decreased conductance to outflow (Cout) of cerebrospinal fluid as measured by lumboventricular perfusion (COut < 0.12 ml ⋅ mm Hg−1 ⋅ min−1). Computerized tomography (CT) scanning, clinical assessment, and neuropsychological grading were performed pre- and postoperatively. The preoperative CBF studies revealed abnormal flow patterns in all patients. Fourteen patients showed moderate-sized, large, or very large central low-flow areas, and four patients had reduced flow bilaterally in the occipital and contiguous temporoparietal regions. After shunting, six patients had a significant reduction in the size of the central low-flow area on the CBF map, agreeing well with the changes of ventricular size on the CT scan. All six patients showed an improvement in either clinical or neuropsychological grading. In 10 of the remaining 11 patients flow patterns were essentially unchanged; one patient deteriorated further. Four of these 11 patients improved on postoperative clinical or neuropsychological testing. Thus, a positive correlation was found between the changes in CBF and the reduction of the ventricular size on the CT scan, but changes in CBF as measured by the present technique did not accompany improvement in the functional state in all patients.
- Published
- 1987
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40. Cerebral blood flow in acute and chronic ischemic stroke using xenon-133 inhalation tomography
- Author
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Niels A. Lassen, S. Vorstrup, and Olaf B. Paulson
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Adult ,Male ,medicine.medical_specialty ,Hemodynamics ,Brain Ischemia ,Brain ischemia ,medicine.artery ,Internal medicine ,Occlusion ,medicine ,Humans ,cardiovascular diseases ,Diaschisis ,Aged ,Cerebral infarction ,business.industry ,Brain ,Cerebral Infarction ,General Medicine ,Blood flow ,Middle Aged ,medicine.disease ,Cerebrovascular Disorders ,Neurology ,Cerebral blood flow ,Cerebrovascular Circulation ,Anesthesia ,cardiovascular system ,Cardiology ,Female ,Neurology (clinical) ,Internal carotid artery ,Tomography, X-Ray Computed ,business ,Xenon Radioisotopes ,Tomography, Emission-Computed - Abstract
Serial measurements of cerebral blood flow (CBF) were performed in 12 patients with acute symptoms of ischemic cerebrovascular disease. CBF was measured by xenon-133 inhalation and single photon emission computer tomography. Six patients had severe strokes and large infarcts on the CT scan. They showed in the acute phase (Days 1-3) very large low-flow areas, larger than the hypodense areas seen on the CT scan. The cerebral vasoconstrictor and vasodilator capacity was tested in the acute phase following aminophylline and acetazolamide, respectively. A preserved but reduced reactivity was seen at both tests in all 6 cases in the infarct and the peri-infarct areas. On Days 5-25, 4 of the patients had transitory increases (59-108%) of CBF, probably corresponding to lysis of an intracerebral embolic occlusion. The other 2 patients showed on Days 7-15 only a moderate CBF increase (appr. 20%), both had occlusion of the relevant internal carotid artery. In all 6 patients, CBF studies at 2 and 6 months resembled the acute phase, showing large areas with reduced flow. At the 6 months follow-up, the vasodilatory stress test was repeated, and all but one showed a preserved but reduced vasoreactivity in the infarct and peri-infarct tissue. Of the remaining 6 patients, one had a pontine infarct and one had no lesions on the CT scan, both having normal angiograms and CBF maps. Four patients had small deep or subcortical CT lesions, and showed a slight, but persistent CBF reduction of about 6-8% in the parietal region on the affected side. No changes in the flow pattern were seen at the vasoreactive studies. A likely explanation for the finding of superjacent low-flow areas is an intrahemispheric uncrossed diaschisis. This interpretation is discussed in relation to the peri-infarct low-flow area seen in the 6 cases with large infarcts.
- Published
- 1986
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41. Dynamic SPECT of the brain using a lipophilic technetium-99m complex, PnAO
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S, Holm, A R, Andersen, S, Vorstrup, N A, Lassen, O B, Paulson, and R A, Holmes
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Adult ,Cerebrovascular Disorders ,Ischemic Attack, Transient ,Oximes ,Brain ,Humans ,Technetium ,Organotechnetium Compounds ,Middle Aged ,Xenon Radioisotopes ,Tomography, Emission-Computed - Abstract
The lipophilic 99mTc-labeled oxime propylene amine oxime (PnAO) should, according to recent reports behave like 133Xe in the human brain. This study compares SPECT images of the two tracers in six subjects: four stroke cases, one transitory ischemic attack case and one normal subject. Technetium-99m PnAO was injected i.v. as a bolus of 15 to 25 mCi. The distribution was followed over 10-sec intervals using a highly sensitive, rapidly rotating SPECT (Tomomatic 64) and compared to 133Xe flow maps. Upon arrival of the PnAO bolus to the brain, a high uptake was found in brain tissue with high cerebral blood flow followed by rapid washout. In the stroke cases, low flow areas were equally well visualized by both tracers. Two dissimilarities were seen in the initial pictures: PnAO visualized the cerebral veins and showed a lesser contrast of gray:white matter uptake. The results suggest that PnAO has a high yet incomplete brain extraction yielding a flow dominated initial distribution with limitations mentioned.
- Published
- 1985
42. Regional Cerebral Blood Flow in Transient Ischaemic Attacks, Effects of Reconstructive Vascular Surgery — A Study Using Xenon-133 Inhalation and Single-Photon Tomography
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L. Henriksen, Niels A. Lassen, S. Vorstrup, and R. Hemmingsen
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medicine.medical_specialty ,Inhalation ,business.industry ,Focal ischemia ,chemistry.chemical_element ,Vascular surgery ,Transient ischaemic attacks ,eye diseases ,Xenon ,chemistry ,Cerebral blood flow ,Carotid artery occlusion ,Medicine ,sense organs ,Radiology ,Tomography ,business ,circulatory and respiratory physiology - Abstract
Regional cerebral blood flow (rCBF) was studied tomographically with 133-Xenon administered by inhalation over 1-min-period at a concentration of 10 mCi/l. A fast rotating (“dynamic”) single-photon emission computed tomograph with four detector heads was used, an instrument that has been found to be well suited for detecting focal ischaemia.
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- 1982
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43. Converting enzyme inhibition resets cerebral autoregulation at lower blood pressure
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O B, Paulson, S, Vorstrup, A R, Andersen, J, Smith, and J, Godtfredsen
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Tomography, Emission-Computed, Single-Photon ,Captopril ,Cerebrovascular Circulation ,Homeostasis ,Humans ,Angiotensin-Converting Enzyme Inhibitors ,Blood Pressure - Abstract
The cerebrovascular effect of converting enzyme inhibition was investigated in normal volunteers, in hypertensive patients and in patients with severe chronic heart failure. Cerebral blood flow (CBF) was measured by single photon emission tomography of the uptake and wash-out of inhaled xenon-133. In some of the patients, CBF was also monitored by repeated determinations of the cerebral arterio-venous oxygen difference. In the normal volunteers and the hypertensive patients captopril (50 mg) caused a downward shift of the lower limit of CBF autoregulation of 10-15 mmHg. In some of the patients with chronic heart failure, captopril (6.25 mg) induced a marked decrease of the arterial blood pressure. Regional and average CBF, however, remained constant. These findings indicate that captopril treatment may protect the brain against ischaemia during sudden decreases of the blood pressure by a shift of the lower limit of CBF autoregulation.
- Published
- 1985
44. Drugs in acute ischemic cerebrovascular lesion evaluated by regional blood flow measurements in the brain
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O B, Paulson, A R, Andersen, and S, Vorstrup
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Cerebrovascular Disorders ,Cerebrovascular Circulation ,Vasodilator Agents ,Acute Disease ,Humans ,Vasoconstrictor Agents ,Antihypertensive Agents - Published
- 1987
45. CBF Decreases in Ischemic Areas After Calcium Antagonist Treatment in Acute Stroke
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Olaf B. Paulson, S. Vorstrup, and Allan R. Andersen
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medicine.medical_specialty ,business.industry ,Antagonist ,Ischemia ,chemistry.chemical_element ,Vasodilation ,Calcium ,medicine.disease ,Pathophysiology ,chemistry ,Internal medicine ,Anesthesia ,Calcium ion homeostasis ,medicine ,Cardiology ,business ,Cell damage ,Acute stroke - Abstract
Over recent years, much effort has been devoted to the investigation of the pathophysiological mechanisms that lead to irreversible cell damage following ischemia. Several studies have indicated that disturbances in calcium ion homeostasis may be responsible for the initiation of a series of events leading to irreversible cell damage following cerebral ischemia [e.g., 15, 20]. It was therefore anticipated that treatment with a calcium antagonist in the early phase after ischemia might prevent the metabolic disturbances leading to intracellular calcium ion accumulation. In addition, it was hoped that these drugs, by a selective vasodilatory effect on the cerebral vessels, would increase regional CBF in the ischemic areas.
- Published
- 1989
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46. Role of angiotensin in autoregulation of cerebral blood flow
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O B, Paulson, G, Waldemar, A R, Andersen, D I, Barry, E V, Pedersen, J F, Schmidt, and S, Vorstrup
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Heart Failure ,Renin-Angiotensin System ,Captopril ,Angiotensin II ,Cerebrovascular Circulation ,Animals ,Homeostasis ,Humans - Abstract
The presence of the renin-angiotensin system (RAS) in extrarenal tissues, namely the vascular wall and brain tissue, is well established. The availability of effective blocking agents, converting-enzyme inhibitors, has made it possible to further elucidate important functions of the extrarenal RAS. We have found that the angiotensin converting-enzyme inhibitor captopril shifts the limits of cerebral blood flow autoregulation to lower blood pressure levels in normotensive and in spontaneously hypertensive rats. This effect may explain our finding of a remarkable preservation of cerebral blood flow, despite significant blood pressure reduction, in patients with chronic heart failure. We suggest that the effect of angiotensin converting-enzyme inhibition on autoregulation of cerebral blood flow is mediated by a dilatation of larger cerebral arteries, which results from inhibition of the vascular tone normally maintained by locally produced angiotensin II.
- Published
- 1988
47. Cerebral blood flow tomography by SPECT (single photon emission computerized tomography): Xenon-133 compared to isopropyl-amphetamine-iodine-123
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N A, Lassen, L, Henriksen, S, Holm, D I, Barry, O B, Paulson, S, Vorstrup, J R, Rapin, M, Le Poncin-Lafitte, J L, Moretti, S, Askienazy, and C, Raynaud
- Subjects
Adult ,Iodine Radioisotopes ,Male ,Cerebrovascular Circulation ,Amphetamines ,Humans ,Female ,Middle Aged ,Iofetamine ,Xenon Radioisotopes ,Tomography, Emission-Computed - Published
- 1983
48. Tomographic cerebral blood flow measurements in patients with ischemic cerebrovascular disease and evaluation of the vasodilatory capacity by the acetazolamide test
- Author
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S, Vorstrup
- Subjects
Carotid Artery Diseases ,Cerebral Revascularization ,Cerebral Infarction ,Aminophylline ,Brain Ischemia ,Acetazolamide ,Vasodilation ,Postoperative Complications ,Ischemic Attack, Transient ,Cerebrovascular Circulation ,Humans ,Blood Flow Velocity ,Xenon Radioisotopes ,Tomography, Emission-Computed - Abstract
Cerebral blood flow (CBF) was measured in a series of patients with ischemic cerebrovascular disease using xenon-133 inhalation and single photon emission computer tomography. The spontaneous course of CBF changes in a consecutive series of stroke patients was evaluated. A quite heterogeneous pattern of flow changes was observed: In patients with large cortical/subcortical infarcts, extensive hypoperfused areas were observed, often significantly larger than the corresponding hypodense lesion on the CT scan. Smaller CT lesions caused relatively smaller flow changes. Patients with lacunar infarcts showed only a discrete reduction of CBF, but comprising most of the ipsilateral hemisphere. Repeated CBF studies in the chronic phase showed, that the clinical improvement commonly noted in stroke patients is not related to a CBF increase. On the contrary, the CBF lesions tended to become somewhat larger and more demarcated even in cases where the finding of a normal angiogram and a transient state of hyperemia suggested a dissolution of the intracerebral embolus. The pathogenetic mechanisms for these persisting low flow areas in CT intact structures was discussed. One possibility was a selective neuronal cell damage in the peri-infarct areas caused by the ischemic insult. Such lesions would leave the structures macroscopically intact, but decrease both the metabolic demands and CBF. However, this interpretation finds little support in recent microscopic neuropathological studies in man. A more likely possibility was then considered to be disconnection (diaschisis) where the reduced flow is due to a decreased neuronal function caused by undercutting of afferent or efferent nervefibers. A crossed cerebellar diaschisis was observed in all patients with major infarcts in the forebrain. These findings were observed already in the acute phase, but persisted quite unchanged throughout the subacute and chronic phases. The patients with lacunar infarcts showed cerebellar diaschisis in the acute phase only, suggesting that a transient suppression of remote areas is possible too. In order to differentiate between permanent flow changes caused by a functional impairment and a possible hemodynamic component, CBF was measured before and after administration of a potent cerebral vasodilator, acetazolamide (Diamox). In normal cases tested with Diamox, an even CBF increase is noted throughout the hemispheres, while the cerebral metabolic rate for oxygen remains stable. In patients having a severe stenosis or occlusion of the internal carotid artery, this vasodilatory stress test will identify the patients having poor collateral capacity via the circle of Willis.(ABSTRACT TRUNCATED AT 400 WORDS)
- Published
- 1988
49. Angiotensin converting enzyme inhibition and cerebral blood flow autoregulation in normotensive and hypertensive man
- Author
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G, Waldemar, J F, Schmidt, A R, Andersen, S, Vorstrup, H, Ibsen, and O B, Paulson
- Subjects
Adult ,Male ,Captopril ,Cerebrovascular Circulation ,Hypertension ,Homeostasis ,Humans ,Angiotensin-Converting Enzyme Inhibitors ,Female ,Middle Aged ,Peptidyl-Dipeptidase A - Abstract
The acute effect on the lower limit of cerebral blood flow (CBF) autoregulation of an angiotensin converting enzyme (ACE) inhibitor, captopril, was studied in normotensive volunteers and in hypertensive patients. Baseline CBF was measured using xenon-133 inhalation tomography, and changes in CBF were measured using the arterio-venous oxygen difference method. Cerebral blood flow autoregulation was studied in two separate normotensive groups, one group of 12 volunteers serving as a control, and one group of 12 volunteers studied after the administration of captopril 50 mg. In a group of seven hypertensive patients CBF autoregulation was studied before and 1 h after the administration of captopril 25 mg. In the normotensive volunteers the median lower limit of CBF autoregulation was 83 and 74 mmHg in the untreated and the captopril-treated group, respectively, with no significant difference between the two groups. In five of the hypertensive patients the lower limit of CBF autoregulation was lowered by captopril, in median by 22 mmHg. However, in two patients it was increased, by 3 and 13 mmHg, respectively. It is proposed that the shift in the lower limit of CBF autoregulation seen in some of our cases, and which has previously been documented in experimental studies, may be dependent on the activity of the sympathetic nervous system.
- Published
- 1989
50. [Risks of too rapid normalization of hyponatremia: central pontine myelinolysis]
- Author
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S, Vorstrup and P S, Sørensen
- Subjects
Time Factors ,Risk Factors ,Pons ,Humans ,Female ,Syndrome ,Middle Aged ,Demyelinating Diseases ,Hyponatremia - Published
- 1988
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