31 results on '"Mörsdorf M"'
Search Results
2. Developing common protocols to measure tundra herbivory across spatial scales
- Author
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Barrio, I.C., primary, Ehrich, D., additional, Soininen, E.M., additional, Ravolainen, V.T., additional, Bueno, C.G., additional, Gilg, O., additional, Koltz, A.M., additional, Speed, J.D.M., additional, Hik, D.S., additional, Mörsdorf, M., additional, Alatalo, J.M., additional, Angerbjörn, A., additional, Bêty, J., additional, Bollache, L., additional, Boulanger-Lapointe, N., additional, Brown, G.S., additional, Eischeid, I., additional, Giroux, M.A., additional, Hájek, T., additional, Hansen, B.B., additional, Hofhuis, S.P., additional, Lamarre, J.-F., additional, Lang, J., additional, Latty, C., additional, Lecomte, N., additional, Macek, P., additional, McKinnon, L., additional, Myers-Smith, I.H., additional, Pedersen, Å.Ø., additional, Prevéy, J.S., additional, Roth, J.D., additional, Saalfeld, S.T., additional, Schmidt, N.M., additional, Smith, P., additional, Sokolov, A., additional, Sokolova, N., additional, Stolz, C., additional, van Bemmelen, R., additional, Varpe, Ø., additional, Woodard, P.F., additional, and Jónsdóttir, I.S., additional
- Published
- 2022
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3. Developing common protocols to measure tundra herbivory across spatial scales
- Author
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Barrio, I.C., Ehrich, D., Soininen, E.M., Ravolainen, V.T., Bueno, C.G., Gilg, O., Koltz, A.M., Speed, J.D.M., Hik, D.S., Mörsdorf, M., Alatalo, J.M., Angerbjörn, A., Bêty, J., Bollache, L., Boulanger-lapointe, N., Brown, G.S., Eischeid, I., Giroux, M.A., Hájek, T., Hansen, B.B., Hofhuis, S.P., Lamarre, J.F., Lang, J., Latty, C., Lecomte, N., Macek, P., Mckinnon, L., Myers-smith, I.H., Pedersen, Å.O., Prevéy, J.S., Roth, J.D., Saalfeld, S.T., Schmidt, N.M., Smith, P., Sokolov, A., Sokolova, N., Stolz, C., van Bemmelen, R., Varpe, Ø., Woodard, P.F., Jónsdóttir, I.S., Barrio, I.C., Ehrich, D., Soininen, E.M., Ravolainen, V.T., Bueno, C.G., Gilg, O., Koltz, A.M., Speed, J.D.M., Hik, D.S., Mörsdorf, M., Alatalo, J.M., Angerbjörn, A., Bêty, J., Bollache, L., Boulanger-lapointe, N., Brown, G.S., Eischeid, I., Giroux, M.A., Hájek, T., Hansen, B.B., Hofhuis, S.P., Lamarre, J.F., Lang, J., Latty, C., Lecomte, N., Macek, P., Mckinnon, L., Myers-smith, I.H., Pedersen, Å.O., Prevéy, J.S., Roth, J.D., Saalfeld, S.T., Schmidt, N.M., Smith, P., Sokolov, A., Sokolova, N., Stolz, C., van Bemmelen, R., Varpe, Ø., Woodard, P.F., and Jónsdóttir, I.S.
- Abstract
Understanding and predicting large-scale ecological responses to global environmental change requires comparative studies across geographic scales with coordinated efforts and standardized methodologies. We designed, applied, and assessed standardized protocols to measure tundra herbivory at three spatial scales: plot, site (habitat), and study area (landscape). The plot- and site-level protocols were tested in the field during summers 2014–2015 at 11 sites, nine of them consisting of warming experimental plots included in the International Tundra Experiment (ITEX). The study area protocols were assessed during 2014–2018 at 24 study areas across the Arctic. Our protocols provide comparable and easy to implement methods for assessing the intensity of invertebrate herbivory within ITEX plots and for characterizing vertebrate herbivore communities at larger spatial scales. We discuss methodological constraints and make recommendations for how these protocols can be used and how sampling effort can be optimized to obtain comparable estimates of herbivory, both at ITEX sites and at large landscape scales. The application of these protocols across the tundra biome will allow characterizing and comparing herbivore communities across tundra sites and at ecologically relevant spatial scales, providing an important step towards a better understanding of tundra ecosystem responses to large-scale environmental change.
- Published
- 2022
4. Can bryophyte groups increase functional resolution in tundra ecosystems?
- Author
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Lett, S., Jónsdóttir, I. S., Becker-Scarpitta, A., Christiansen, C. T., During, H., Ekelund, F., Henry, G. H. R., Lang, S. I., Michelsen, A., Rousk, K., Alatalo, J. M., Betway, K. R., Rui, S. B., Callaghan, T., Carbognani, M., Cooper, E. J., Cornelissen, J. H. C., Dorrepaal, E., Egelkraut, D., Elumeeva, T. G., Haugum, S. V., Hollister, R. D., Jägerbrand, A. K., Keuper, F., Klanderud, K., Lévesque, E., Liu, X., May, J., Michel, P., Mörsdorf, M., Petraglia, A., Rixen, C., Robroek, B. J. M., Rzepczynska, A. M., Soudzilovskaia, N. A., Tolvanen, A., Vandvik, V., Volkov, I., Volkova, I., van Zuijlen, K., Lett, S., Jónsdóttir, I. S., Becker-Scarpitta, A., Christiansen, C. T., During, H., Ekelund, F., Henry, G. H. R., Lang, S. I., Michelsen, A., Rousk, K., Alatalo, J. M., Betway, K. R., Rui, S. B., Callaghan, T., Carbognani, M., Cooper, E. J., Cornelissen, J. H. C., Dorrepaal, E., Egelkraut, D., Elumeeva, T. G., Haugum, S. V., Hollister, R. D., Jägerbrand, A. K., Keuper, F., Klanderud, K., Lévesque, E., Liu, X., May, J., Michel, P., Mörsdorf, M., Petraglia, A., Rixen, C., Robroek, B. J. M., Rzepczynska, A. M., Soudzilovskaia, N. A., Tolvanen, A., Vandvik, V., Volkov, I., Volkova, I., and van Zuijlen, K.
- Abstract
The relative contribution of bryophytes to plant diversity, primary productivity, and ecosystem functioning increases towards colder climates. Bryophytes respond to environmental changes at the species level, but because bryophyte species are relatively difficult to identify, they are often lumped into one functional group. Consequently, bryophyte function remains poorly resolved. Here, we explore how higher resolution of bryophyte functional diversity can be encouraged and implemented in tundra ecological studies. We briefly review previous bryophyte functional classifications and the roles of bryophytes in tundra ecosystems and their susceptibility to environmental change. Based on shoot morphology and colony organization, we then propose twelve easily distinguishable bryophyte functional groups. To illustrate how bryophyte functional groups can help elucidate variation in bryophyte effects and responses, we compiled existing data on water holding capacity, a key bryophyte trait. Although plant functional groups can mask potentially high interspecific and intraspecific variability, we found better separation of bryophyte functional group means compared with previous grouping systems regarding water holding capacity. This suggests that our bryophyte functional groups truly represent variation in the functional roles of bryophytes in tundra ecosystems. Lastly, we provide recommendations to improve the monitoring of bryophyte community changes in tundra study sites. Résumé La contribution relative des bryophytes à la diversité végétale, à la productivité primaire et au fonctionnement des écosystèmes s’accroît vers les climats plus froids. Les bryophytes répondent aux changements environnementaux au niveau de l’espèce, mais puisque les espèces de bryophytes sont relativement difficiles à identifier, elles sont souvent regroupées en un seul groupe fonctionnel. Par conséquent, la fonction des bryophytes reste mal résolue. Les auteurs explorent ici comment une m
- Published
- 2022
5. Global maps of soil temperature
- Author
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Lembrechts, JJ, van den Hoogen, J, Aalto, J, Ashcroft, MB, De Frenne, P, Kemppinen, J, Kopecký, M, Luoto, M, Maclean, IMD, Crowther, TW, Bailey, JJ, Haesen, S, Klinges, DH, Niittynen, P, Scheffers, BR, Van Meerbeek, K, Aartsma, P, Abdalaze, O, Abedi, M, Aerts, R, Ahmadian, N, Ahrends, A, Alatalo, JM, Alexander, JM, Nina Allonsius, C, Altman, J, Ammann, C, Andres, C, Andrews, C, Ardö, J, Arriga, N, Arzac, A, Aschero, V, Assis, RL, Johann Assmann, J, Bader, MY, Bahalkeh, K, Barančok, P, Barrio, IC, Barros, A, Barthel, M, Basham, EW, Bauters, M, Bazzichetto, M, Belelli Marchesini, L, Bell, MC, Benavides, JC, Luis Benito Alonso, J, Berauer, BJ, Bjerke, JW, Björk, RG, Björkman, MP, Björnsdóttir, K, Blonder, B, Boeckx, P, Boike, J, Bokhorst, S, Brum, BNS, Brůna, J, Buchmann, N, Buysse, P, Luís Camargo, J, Campoe, OC, Candan, O, Canessa, R, Cannone, N, Carbognani, M, Carnicer, J, Casanova‐Katny, A, Cesarz, S, Chojnicki, B, Choler, P, Chown, SL, Cifuentes, EF, Čiliak, M, Contador, T, Convey, P, Cooper, EJ, Cremonese, E, Curasi, SR, Curtis, R, Cutini, M, Johan Dahlberg, C, Daskalova, GN, Angel de Pablo, M, Della Chiesa, S, Dengler, J, Deronde, B, Descombes, P, Di Cecco, V, Di Musciano, M, Dick, J, Dimarco, RD, Dolezal, J, Dorrepaal, E, Dušek, J, Eisenhauer, N, Eklundh, L, Erickson, TE, Erschbamer, B, Eugster, W, Ewers, RM, Exton, DA, Fanin, N, Fazlioglu, F, Feigenwinter, I, Fenu, G, Ferlian, O, Rosa Fernández Calzado, M, Fernández‐Pascual, E, Finckh, M, Finger Higgens, R, Forte, TGW, Freeman, EC, Frei, ER, Fuentes‐Lillo, E, García, RA, García, MB, Géron, C, Gharun, M, Ghosn, D, Gigauri, K, Gobin, A, Goded, I, Goeckede, M, Gottschall, F, Goulding, K, Govaert, S, Jessen Graae, B, Greenwood, S, Greiser, C, Grelle, A, Guénard, B, Guglielmin, M, Guillemot, J, Haase, P, Haider, S, Halbritter, AH, Hamid, M, Hammerle, A, Hampe, A, Haugum, SV, Hederová, L, Heinesch, B, Helfter, C, Hepenstrick, D, Herberich, M, Herbst, M, Hermanutz, L, Hik, DS, Hoffrén, R, Homeier, J, Hörtnagl, L, Høye, TT, Hrbacek, F, Hylander, K, Iwata, H, Antoni Jackowicz‐Korczynski, M, Jactel, H, Järveoja, J, Jastrzębowski, S, Jentsch, A, Jiménez, JJ, Jónsdóttir, IS, Jucker, T, Jump, AS, Juszczak, R, Kanka, R, Kašpar, V, Kazakis, G, Kelly, J, Khuroo, AA, Klemedtsson, L, Klisz, M, Kljun, N, Knohl, A, Kobler, J, Kollár, J, Kotowska, MM, Kovács, B, Kreyling, J, Lamprecht, A, Lang, SI, Larson, C, Larson, K, Laska, K, le Maire, G, Leihy, RI, Lens, L, Liljebladh, B, Lohila, A, Lorite, J, Loubet, B, Lynn, J, Macek, M, Mackenzie, R, Magliulo, E, Maier, R, Malfasi, F, Máliš, F, Man, M, Manca, G, Manco, A, Manise, T, Manolaki, P, Marciniak, F, Matula, R, Clara Mazzolari, A, Medinets, S, Medinets, V, Meeussen, C, Merinero, S, de Cássia Guimarães Mesquita, R, Meusburger, K, Meysman, FJR, Michaletz, ST, Milbau, A, Moiseev, D, Moiseev, P, Mondoni, A, Monfries, R, Montagnani, L, Moriana‐Armendariz, M, Morra di Cella, U, Mörsdorf, M, Mosedale, JR, Muffler, L, Muñoz‐Rojas, M, Myers, JA, Myers‐Smith, IH, Nagy, L, Nardino, M, Naujokaitis‐Lewis, I, Newling, Emily, Nicklas, L, Niedrist, G, Niessner, A, Nilsson, MB, Normand, S, Nosetto, MD, Nouvellon, Y, Nuñez, MA, Ogaya, R, Ogée, J, Okello, J, Olejnik, J, Eivind Olesen, J, Opedal, Ø, Orsenigo, S, Palaj, A, Pampuch, T, Panov, AV, Pärtel, M, Pastor, A, Pauchard, A, Pauli, H, Pavelka, M, Pearse, WD, Peichl, M, Pellissier, L, Penczykowski, RM, Penuelas, J, Petit Bon, M, Petraglia, A, Phartyal, SS, Phoenix, GK, Pio, C, Pitacco, A, Pitteloud, C, Plichta, R, Porro, F, Portillo‐Estrada, M, Poulenard, J, Poyatos, R, Prokushkin, AS, Puchalka, R, Pușcaș, M, Radujković, D, Randall, K, Ratier Backes, A, Remmele, S, Remmers, W, Renault, D, Risch, AC, Rixen, C, Robinson, SA, Robroek, BJM, Rocha, AV, Rossi, C, Rossi, G, Roupsard, O, Rubtsov, AV, Saccone, P, Sagot, C, Sallo Bravo, J, Santos, CC, Sarneel, JM, Scharnweber, T, Schmeddes, J, Schmidt, M, Scholten, T, Schuchardt, M, Schwartz, N, Scott, T, Seeber, J, Cristina Segalin de Andrade, A, Seipel, T, Semenchuk, P, Senior, RA, Serra‐Diaz, JM, Sewerniak, P, Shekhar, A, Sidenko, NV, Siebicke, L, Siegwart Collier, L, Simpson, E, Siqueira, DP, Sitková, Z, Six, J, Smiljanic, M, Smith, SW, Smith‐Tripp, S, Somers, B, Vedel Sørensen, M, João L. L. Souza, J, Israel Souza, B, Souza Dias, A, Spasojevic, MJ, Speed, JDM, Spicher, F, Stanisci, A, Steinbauer, K, Steinbrecher, R, Steinwandter, M, Stemkovski, M, Stephan, JG, Stiegler, C, Stoll, S, Svátek, M, Svoboda, M, Tagesson, T, Tanentzap, AJ, Tanneberger, F, Theurillat, J, Thomas, HJD, Thomas, AD, Tielbörger, K, Tomaselli, M, Albert Treier, U, Trouillier, M, Dan Turtureanu, P, Tutton, R, Tyystjärvi, VA, Ueyama, M, Ujházy, K, Ujházyová, M, Uogintas, D, Urban, AV, Urban, J, Urbaniak, M, Ursu, T, Primo Vaccari, F, Van de Vondel, S, van den Brink, L, Van Geel, M, Vandvik, V, Vangansbeke, P, Varlagin, A, Veen, GF, Veenendaal, E, Venn, Susanna, Verbeeck, H, Verbrugggen, E, Verheijen, FGA, Villar, L, Vitale, L, Vittoz, P, Vives‐Ingla, M, von Oppen, J, Walz, J, Wang, R, Wang, Y, Way, RG, Wedegärtner, REM, Weigel, R, Wild, J, Wilkinson, M, Wilmking, M, Wingate, L, Winkler, M, Wipf, S, Wohlfahrt, G, Xenakis, G, Yang, Y, Yu, Z, Yu, K, Zellweger, F, Zhang, J, Zhang, Z, Zhao, P, Ziemblińska, K, Zimmermann, R, Zong, S, Zyryanov, VI, Nijs, I, Lenoir, J, Lembrechts, JJ, van den Hoogen, J, Aalto, J, Ashcroft, MB, De Frenne, P, Kemppinen, J, Kopecký, M, Luoto, M, Maclean, IMD, Crowther, TW, Bailey, JJ, Haesen, S, Klinges, DH, Niittynen, P, Scheffers, BR, Van Meerbeek, K, Aartsma, P, Abdalaze, O, Abedi, M, Aerts, R, Ahmadian, N, Ahrends, A, Alatalo, JM, Alexander, JM, Nina Allonsius, C, Altman, J, Ammann, C, Andres, C, Andrews, C, Ardö, J, Arriga, N, Arzac, A, Aschero, V, Assis, RL, Johann Assmann, J, Bader, MY, Bahalkeh, K, Barančok, P, Barrio, IC, Barros, A, Barthel, M, Basham, EW, Bauters, M, Bazzichetto, M, Belelli Marchesini, L, Bell, MC, Benavides, JC, Luis Benito Alonso, J, Berauer, BJ, Bjerke, JW, Björk, RG, Björkman, MP, Björnsdóttir, K, Blonder, B, Boeckx, P, Boike, J, Bokhorst, S, Brum, BNS, Brůna, J, Buchmann, N, Buysse, P, Luís Camargo, J, Campoe, OC, Candan, O, Canessa, R, Cannone, N, Carbognani, M, Carnicer, J, Casanova‐Katny, A, Cesarz, S, Chojnicki, B, Choler, P, Chown, SL, Cifuentes, EF, Čiliak, M, Contador, T, Convey, P, Cooper, EJ, Cremonese, E, Curasi, SR, Curtis, R, Cutini, M, Johan Dahlberg, C, Daskalova, GN, Angel de Pablo, M, Della Chiesa, S, Dengler, J, Deronde, B, Descombes, P, Di Cecco, V, Di Musciano, M, Dick, J, Dimarco, RD, Dolezal, J, Dorrepaal, E, Dušek, J, Eisenhauer, N, Eklundh, L, Erickson, TE, Erschbamer, B, Eugster, W, Ewers, RM, Exton, DA, Fanin, N, Fazlioglu, F, Feigenwinter, I, Fenu, G, Ferlian, O, Rosa Fernández Calzado, M, Fernández‐Pascual, E, Finckh, M, Finger Higgens, R, Forte, TGW, Freeman, EC, Frei, ER, Fuentes‐Lillo, E, García, RA, García, MB, Géron, C, Gharun, M, Ghosn, D, Gigauri, K, Gobin, A, Goded, I, Goeckede, M, Gottschall, F, Goulding, K, Govaert, S, Jessen Graae, B, Greenwood, S, Greiser, C, Grelle, A, Guénard, B, Guglielmin, M, Guillemot, J, Haase, P, Haider, S, Halbritter, AH, Hamid, M, Hammerle, A, Hampe, A, Haugum, SV, Hederová, L, Heinesch, B, Helfter, C, Hepenstrick, D, Herberich, M, Herbst, M, Hermanutz, L, Hik, DS, Hoffrén, R, Homeier, J, Hörtnagl, L, Høye, TT, Hrbacek, F, Hylander, K, Iwata, H, Antoni Jackowicz‐Korczynski, M, Jactel, H, Järveoja, J, Jastrzębowski, S, Jentsch, A, Jiménez, JJ, Jónsdóttir, IS, Jucker, T, Jump, AS, Juszczak, R, Kanka, R, Kašpar, V, Kazakis, G, Kelly, J, Khuroo, AA, Klemedtsson, L, Klisz, M, Kljun, N, Knohl, A, Kobler, J, Kollár, J, Kotowska, MM, Kovács, B, Kreyling, J, Lamprecht, A, Lang, SI, Larson, C, Larson, K, Laska, K, le Maire, G, Leihy, RI, Lens, L, Liljebladh, B, Lohila, A, Lorite, J, Loubet, B, Lynn, J, Macek, M, Mackenzie, R, Magliulo, E, Maier, R, Malfasi, F, Máliš, F, Man, M, Manca, G, Manco, A, Manise, T, Manolaki, P, Marciniak, F, Matula, R, Clara Mazzolari, A, Medinets, S, Medinets, V, Meeussen, C, Merinero, S, de Cássia Guimarães Mesquita, R, Meusburger, K, Meysman, FJR, Michaletz, ST, Milbau, A, Moiseev, D, Moiseev, P, Mondoni, A, Monfries, R, Montagnani, L, Moriana‐Armendariz, M, Morra di Cella, U, Mörsdorf, M, Mosedale, JR, Muffler, L, Muñoz‐Rojas, M, Myers, JA, Myers‐Smith, IH, Nagy, L, Nardino, M, Naujokaitis‐Lewis, I, Newling, Emily, Nicklas, L, Niedrist, G, Niessner, A, Nilsson, MB, Normand, S, Nosetto, MD, Nouvellon, Y, Nuñez, MA, Ogaya, R, Ogée, J, Okello, J, Olejnik, J, Eivind Olesen, J, Opedal, Ø, Orsenigo, S, Palaj, A, Pampuch, T, Panov, AV, Pärtel, M, Pastor, A, Pauchard, A, Pauli, H, Pavelka, M, Pearse, WD, Peichl, M, Pellissier, L, Penczykowski, RM, Penuelas, J, Petit Bon, M, Petraglia, A, Phartyal, SS, Phoenix, GK, Pio, C, Pitacco, A, Pitteloud, C, Plichta, R, Porro, F, Portillo‐Estrada, M, Poulenard, J, Poyatos, R, Prokushkin, AS, Puchalka, R, Pușcaș, M, Radujković, D, Randall, K, Ratier Backes, A, Remmele, S, Remmers, W, Renault, D, Risch, AC, Rixen, C, Robinson, SA, Robroek, BJM, Rocha, AV, Rossi, C, Rossi, G, Roupsard, O, Rubtsov, AV, Saccone, P, Sagot, C, Sallo Bravo, J, Santos, CC, Sarneel, JM, Scharnweber, T, Schmeddes, J, Schmidt, M, Scholten, T, Schuchardt, M, Schwartz, N, Scott, T, Seeber, J, Cristina Segalin de Andrade, A, Seipel, T, Semenchuk, P, Senior, RA, Serra‐Diaz, JM, Sewerniak, P, Shekhar, A, Sidenko, NV, Siebicke, L, Siegwart Collier, L, Simpson, E, Siqueira, DP, Sitková, Z, Six, J, Smiljanic, M, Smith, SW, Smith‐Tripp, S, Somers, B, Vedel Sørensen, M, João L. L. Souza, J, Israel Souza, B, Souza Dias, A, Spasojevic, MJ, Speed, JDM, Spicher, F, Stanisci, A, Steinbauer, K, Steinbrecher, R, Steinwandter, M, Stemkovski, M, Stephan, JG, Stiegler, C, Stoll, S, Svátek, M, Svoboda, M, Tagesson, T, Tanentzap, AJ, Tanneberger, F, Theurillat, J, Thomas, HJD, Thomas, AD, Tielbörger, K, Tomaselli, M, Albert Treier, U, Trouillier, M, Dan Turtureanu, P, Tutton, R, Tyystjärvi, VA, Ueyama, M, Ujházy, K, Ujházyová, M, Uogintas, D, Urban, AV, Urban, J, Urbaniak, M, Ursu, T, Primo Vaccari, F, Van de Vondel, S, van den Brink, L, Van Geel, M, Vandvik, V, Vangansbeke, P, Varlagin, A, Veen, GF, Veenendaal, E, Venn, Susanna, Verbeeck, H, Verbrugggen, E, Verheijen, FGA, Villar, L, Vitale, L, Vittoz, P, Vives‐Ingla, M, von Oppen, J, Walz, J, Wang, R, Wang, Y, Way, RG, Wedegärtner, REM, Weigel, R, Wild, J, Wilkinson, M, Wilmking, M, Wingate, L, Winkler, M, Wipf, S, Wohlfahrt, G, Xenakis, G, Yang, Y, Yu, Z, Yu, K, Zellweger, F, Zhang, J, Zhang, Z, Zhao, P, Ziemblińska, K, Zimmermann, R, Zong, S, Zyryanov, VI, Nijs, I, and Lenoir, J
- Published
- 2021
6. Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map
- Author
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Soininen, E.M., Barrio, I.C., Bjørkås, R., Björnsdóttir, K., Ehrich, D., Hopping, K.A., Kaarlejärvi, E., Kolstad, A.L., Abdulmanova, S., Björk, R.G., Bueno, C.G., Eischeid, I., Finger-Higgens, R., Forbey, J.S., Gignac, C., Gilg, O., den Herder, M., Holm, H.S., Hwang, B.C., Jepsen, J.U., Kamenova, S., Kater, I., Koltz, A.M., Kristensen, J.A., Little, C.J., Macek, P., Mathisen, K.M., Metcalfe, Daniel B., Mosbacher, J.B., Mörsdorf, M., Park, T., Propster, J.R., Roberts, A.J., Serrano, E., Spiegel, M.P., Tamayo, M., Tuomi, M.W., Verma, M., Vuorinen, K.E.M., Väisänen, M., van der Wal, R., Wilcots, M.E., Yoccoz, N.G., Speed, J.D.M., Soininen, E.M., Barrio, I.C., Bjørkås, R., Björnsdóttir, K., Ehrich, D., Hopping, K.A., Kaarlejärvi, E., Kolstad, A.L., Abdulmanova, S., Björk, R.G., Bueno, C.G., Eischeid, I., Finger-Higgens, R., Forbey, J.S., Gignac, C., Gilg, O., den Herder, M., Holm, H.S., Hwang, B.C., Jepsen, J.U., Kamenova, S., Kater, I., Koltz, A.M., Kristensen, J.A., Little, C.J., Macek, P., Mathisen, K.M., Metcalfe, Daniel B., Mosbacher, J.B., Mörsdorf, M., Park, T., Propster, J.R., Roberts, A.J., Serrano, E., Spiegel, M.P., Tamayo, M., Tuomi, M.W., Verma, M., Vuorinen, K.E.M., Väisänen, M., van der Wal, R., Wilcots, M.E., Yoccoz, N.G., and Speed, J.D.M.
- Abstract
Background: Herbivores modify the structure and function of tundra ecosystems. Understanding their impacts is necessary to assess the responses of these ecosystems to ongoing environmental changes. However, the effects of herbivores on plants and ecosystem structure and function vary across the Arctic. Strong spatial variation in herbivore effects implies that the results of individual studies on herbivory depend on local conditions, i.e., their ecological context. An important first step in assessing whether generalizable conclusions can be produced is to identify the existing studies and assess how well they cover the underlying environmental conditions across the Arctic. This systematic map aims to identify the ecological contexts in which herbivore impacts on vegetation have been studied in the Arctic. Specifically, the primary question of the systematic map was: “What evidence exists on the effects of herbivores on Arctic vegetation?”. Methods: We used a published systematic map protocol to identify studies addressing the effects of herbivores on Arctic vegetation. We conducted searches for relevant literature in online databases, search engines and specialist websites. Literature was screened to identify eligible studies, defined as reporting primary data on herbivore impacts on Arctic plants and plant communities. We extracted information on variables that describe the ecological context of the studies, from the studies themselves and from geospatial data. We synthesized the findings narratively and created a Shiny App where the coded data are searchable and variables can be visually explored. Review findings: We identified 309 relevant articles with 662 studies (representing different ecological contexts or datasets within the same article). These studies addressed vertebrate herbivory seven times more often than invertebrate herbivory. Geographically, the largest cluster of studies was in Northern Fennoscandia. Warmer and wetter parts of the Arctic had the, Errata: Soininen, E.M., Barrio, I.C., Bjørkås, R. et al. Correction to: Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map. Environ Evid 2022;11:20. DOI: 10.1186/s13750-022-00265-z
- Published
- 2021
- Full Text
- View/download PDF
7. Location of studies and evidence of effects of herbivory on Arctic vegetation: a systematic map
- Author
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Soininen, E. M. (E. M.), Barrio, I. C. (I. C.), Bjørkås, R. (R.), Björnsdottir, K. (K.), Ehrich, D. (D.), Hopping, K. A. (K. A.), Kaarlejärvi, E. (E.), Kolstad, A. L. (A. L.), Abdulmanova, S. (S.), Björk, R. G. (R. G.), Bueno, C. G. (C. G.), Eischeid, I. (I), Finger-Higgens, R. (R.), Forbey, J. S. (J. S.), Gignac, C. (C.), Gilg, O. (O.), den Herder, M. (M.), Holm, H. S. (H. S.), Hwang, B. C. (B. C.), Jepsen, J. U. (J. U.), Kamenova, S. (S.), Kater, I. (I), Koltz, A. M. (A. M.), Kristensen, J. A. (J. A.), Little, C. J. (C. J.), Macek, P. (P.), Mathisen, K. M. (K. M.), Metcalfe, D. B. (D. B.), Mosbacher, J. B. (J. B.), Mörsdorf, M. (M.), Park, T. (T.), Propster, J. R. (J. R.), Roberts, A. J. (A. J.), Serrano, E. (E.), Spiegel, M. P. (M. P.), Tamayo, M. (M.), Tuomi, M. W. (M. W.), Verma, M. (M.), Vuorinen, K. E. (K. E. M.), Väisänen, M. (M.), Van der Wal, R. (R.), Wilcots, M. E. (M. E.), Yoccoz, N. G. (N. G.), Speed, J. D. (J. D. M.), Soininen, E. M. (E. M.), Barrio, I. C. (I. C.), Bjørkås, R. (R.), Björnsdottir, K. (K.), Ehrich, D. (D.), Hopping, K. A. (K. A.), Kaarlejärvi, E. (E.), Kolstad, A. L. (A. L.), Abdulmanova, S. (S.), Björk, R. G. (R. G.), Bueno, C. G. (C. G.), Eischeid, I. (I), Finger-Higgens, R. (R.), Forbey, J. S. (J. S.), Gignac, C. (C.), Gilg, O. (O.), den Herder, M. (M.), Holm, H. S. (H. S.), Hwang, B. C. (B. C.), Jepsen, J. U. (J. U.), Kamenova, S. (S.), Kater, I. (I), Koltz, A. M. (A. M.), Kristensen, J. A. (J. A.), Little, C. J. (C. J.), Macek, P. (P.), Mathisen, K. M. (K. M.), Metcalfe, D. B. (D. B.), Mosbacher, J. B. (J. B.), Mörsdorf, M. (M.), Park, T. (T.), Propster, J. R. (J. R.), Roberts, A. J. (A. J.), Serrano, E. (E.), Spiegel, M. P. (M. P.), Tamayo, M. (M.), Tuomi, M. W. (M. W.), Verma, M. (M.), Vuorinen, K. E. (K. E. M.), Väisänen, M. (M.), Van der Wal, R. (R.), Wilcots, M. E. (M. E.), Yoccoz, N. G. (N. G.), and Speed, J. D. (J. D. M.)
- Abstract
Background: Herbivores modify the structure and function of tundra ecosystems. Understanding their impacts is necessary to assess the responses of these ecosystems to ongoing environmental changes. However, the effects of herbivores on plants and ecosystem structure and function vary across the Arctic. Strong spatial variation in herbivore effects implies that the results of individual studies on herbivory depend on local conditions, i.e., their ecological context. An important first step in assessing whether generalizable conclusions can be produced is to identify the existing studies and assess how well they cover the underlying environmental conditions across the Arctic. This systematic map aims to identify the ecological contexts in which herbivore impacts on vegetation have been studied in the Arctic. Specifically, the primary question of the systematic map was: ”What evidence exists on the effects of herbivores on Arctic vegetation?”. Methods: We used a published systematic map protocol to identify studies addressing the effects of herbivores on Arctic vegetation. We conducted searches for relevant literature in online databases, search engines and specialist websites. Literature was screened to identify eligible studies, defined as reporting primary data on herbivore impacts on Arctic plants and plant communities. We extracted information on variables that describe the ecological context of the studies, from the studies themselves and from geospatial data. We synthesized the findings narratively and created a Shiny App where the coded data are searchable and variables can be visually explored. Review findings We identified 309 relevant articles with 662 studies (representing different ecological contexts or datasets within the same article). These studies addressed vertebrate herbivory seven times more often than invertebrate herbivory. Geographically, the largest cluster of studies was in Northern Fennoscandia. Warmer and wetter parts of the Arctic
- Published
- 2021
8. Alteration of cerebral perfusion in patients with idiopathic normal pressure hydrocephalus measured by 3D perfusion weighted magnetic resonance imaging
- Author
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Walter, Ch., Hertel, F., Naumann, E., and Mörsdorf, M.
- Published
- 2005
- Full Text
- View/download PDF
9. Paragangliomas of the parasellar region
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Hertel, F., Bettag, M., Mörsdorf, M., and Feiden, W.
- Published
- 2003
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- View/download PDF
10. Is a combination of Tc-SPECT or perfusion weighted magnetic resonance imaging with spinal tap test helpful in the diagnosis of normal pressure hydrocephalus?
- Author
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Hertel, F, Walter, C, Schmitt, M, Mörsdorf, M, Jammers, W, Busch, H P, and Bettag, M
- Published
- 2003
11. Tundra Trait Team: A database of plant traits spanning the tundra biome
- Author
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Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Normand, S., Thomas, H. J. D., Alatalo, J. M., Alexander, H., Anadon-Rosell, A., Angers-Blondin, S., Bai, Y., Baruah, G., te Beest, M., Berner, L., Björk, R. G., Blok, D., Bruelheide, H., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Collier, L. S., Cooper, E. J., Cornelissen, J. H. C., Dickinson, K. J. M., Dullinger, S., Elberling, B., Eskelinen, A., Forbes, B. C., Frei, E. R., Iturrate-Garcia, M., Good, M. K., Grau, O., Green, P., Greve, M., Grogan, P., Haider, S., Hájek, T., Hallinger, M., Happonen, K., Harper, K. A., Heijmans, M. M. P. D., Henry, G. H. R., Hermanutz, L., Hewitt, R. E., Hollister, R. D., Hudson, J., Hülber, K., Iversen, C. M., Jaroszynska, F., Jiménez-Alfaro, B., Johnstone, J., Jorgensen, R. H., Kaarlejärvi, E., Klady, R., Klimešová, J., Korsten, A., Kuleza, S., Kulonen, A., Lamarque, L. J., Lantz, T., Lavalle, A., Lembrechts, J. J., Lévesque, E., Little, C. J., Luoto, M., Macek, P., Mack, M. C., Mathakutha, R., Michelsen, A., Milbau, A., Molau, U., Morgan, J. W., Mörsdorf, M. A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Pickering, C., Prevéy, J. S., Rixen, C., Rumpf, S. B., Schaepman-Strub, G., Semenchuk, P., Shetti, R., Soudzilovskaia, N. A., Spasojevic, M. J., Speed, J. D. M., Street, L. E., Suding, K., Tape, K. D., Tomaselli, M., Trant, A., Treier, U. A., Tremblay, J. P., Tremblay, M., Venn, S., Virkkala, A. M., Vowles, T., Weijers, S., Wilmking, M., Wipf, S., Zamin, T., Bjorkman, A. D., Myers-Smith, I. H., Elmendorf, S. C., Normand, S., Thomas, H. J. D., Alatalo, J. M., Alexander, H., Anadon-Rosell, A., Angers-Blondin, S., Bai, Y., Baruah, G., te Beest, M., Berner, L., Björk, R. G., Blok, D., Bruelheide, H., Buchwal, A., Buras, A., Carbognani, M., Christie, K., Collier, L. S., Cooper, E. J., Cornelissen, J. H. C., Dickinson, K. J. M., Dullinger, S., Elberling, B., Eskelinen, A., Forbes, B. C., Frei, E. R., Iturrate-Garcia, M., Good, M. K., Grau, O., Green, P., Greve, M., Grogan, P., Haider, S., Hájek, T., Hallinger, M., Happonen, K., Harper, K. A., Heijmans, M. M. P. D., Henry, G. H. R., Hermanutz, L., Hewitt, R. E., Hollister, R. D., Hudson, J., Hülber, K., Iversen, C. M., Jaroszynska, F., Jiménez-Alfaro, B., Johnstone, J., Jorgensen, R. H., Kaarlejärvi, E., Klady, R., Klimešová, J., Korsten, A., Kuleza, S., Kulonen, A., Lamarque, L. J., Lantz, T., Lavalle, A., Lembrechts, J. J., Lévesque, E., Little, C. J., Luoto, M., Macek, P., Mack, M. C., Mathakutha, R., Michelsen, A., Milbau, A., Molau, U., Morgan, J. W., Mörsdorf, M. A., Nabe-Nielsen, J., Nielsen, S. S., Ninot, J. M., Oberbauer, S. F., Olofsson, J., Onipchenko, V. G., Petraglia, A., Pickering, C., Prevéy, J. S., Rixen, C., Rumpf, S. B., Schaepman-Strub, G., Semenchuk, P., Shetti, R., Soudzilovskaia, N. A., Spasojevic, M. J., Speed, J. D. M., Street, L. E., Suding, K., Tape, K. D., Tomaselli, M., Trant, A., Treier, U. A., Tremblay, J. P., Tremblay, M., Venn, S., Virkkala, A. M., Vowles, T., Weijers, S., Wilmking, M., Wipf, S., and Zamin, T.
- Abstract
Motivation: The Tundra Trait Team (TTT) database includes field-based measurements of key traits related to plant form and function at multiple sites across the tundra biome. This dataset can be used to address theoretical questions about plant strategy and trade-offs, trait–environment relationships and environmental filtering, and trait variation across spatial scales, to validate satellite data, and to inform Earth system model parameters. Main types of variable contained: The database contains 91,970 measurements of 18 plant traits. The most frequently measured traits (> 1,000 observations each) include plant height, leaf area, specific leaf area, leaf fresh and dry mass, leaf dry matter content, leaf nitrogen, carbon and phosphorus content, leaf C:N and N:P, seed mass, and stem specific density. Spatial location and grain: Measurements were collected in tundra habitats in both the Northern and Southern Hemispheres, including Arctic sites in Alaska, Canada, Greenland, Fennoscandia and Siberia, alpine sites in the European Alps, Colorado Rockies, Caucasus, Ural Mountains, Pyrenees, Australian Alps, and Central Otago Mountains (New Zealand), and sub-Antarctic Marion Island. More than 99% of observations are georeferenced. Time period and grain: All data were collected between 1964 and 2018. A small number of sites have repeated trait measurements at two or more time periods. Major taxa and level of measurement: Trait measurements were made on 978 terrestrial vascular plant species growing in tundra habitats. Most observations are on individuals (86%), while the remainder represent plot or site means or maximums per species. Software format: csv file and GitHub repository with data cleaning scripts in R; contribution to TRY plant trait database (www.try-db.org) to be included in the next version release.
- Published
- 2018
12. Ausgedehnte zervikale Myelitis bei kutanem Lupus erythematodes mit Besserung unter Plasmapherese
- Author
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Weil, S, Schröder, K, Mörsdorf, M, and Maschke, M
- Published
- 2024
- Full Text
- View/download PDF
13. Bakterielle Meningitis bei ausgeprägter rhinobasler Meningoenzephalozele
- Author
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Del Fabbro, P, Schröder, K, Mörsdorf, M, Bettag, M, and Maschke, M
- Published
- 2024
- Full Text
- View/download PDF
14. Primäres leptomeningeales Melanom – ein Fallbericht
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Moser, A, Schröder, K, Mörsdorf, M, Bettag, M, Kirchen, H, Feiden, W, and Maschke, M
- Published
- 2024
- Full Text
- View/download PDF
15. Cyclosporin-toxische Encephalopathie: Ein Fallbericht
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Pixius, M, Hofstadt-van Oy, U, and Mörsdorf, M
- Published
- 2024
- Full Text
- View/download PDF
16. Ausgedehnte zervikale Myelitis bei kutanem Lupus erythematodes mit Besserung unter Plasmapherese
- Author
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Weil, S, primary, Schröder, K, additional, Mörsdorf, M, additional, and Maschke, M, additional
- Published
- 2009
- Full Text
- View/download PDF
17. Bakterielle Meningitis bei ausgeprägter rhinobasler Meningoenzephalozele
- Author
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Del Fabbro, P, primary, Schröder, K, additional, Mörsdorf, M, additional, Bettag, M, additional, and Maschke, M, additional
- Published
- 2009
- Full Text
- View/download PDF
18. Primäres leptomeningeales Melanom – ein Fallbericht
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Moser, A, primary, Schröder, K, additional, Mörsdorf, M, additional, Bettag, M, additional, Kirchen, H, additional, Feiden, W, additional, and Maschke, M, additional
- Published
- 2009
- Full Text
- View/download PDF
19. Cyclosporin-toxische Encephalopathie: Ein Fallbericht
- Author
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Pixius, M, primary, Hofstadt-van Oy, U, additional, and Mörsdorf, M, additional
- Published
- 2004
- Full Text
- View/download PDF
20. Impact of right ventricular function on cardiopulmonary exercise capacity in mitral regurgitation patients undergoing transcatheter mitral valve intervention.
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Gerçek M, Ivannikova M, Gerçek M, Mörsdorf M, Kirchner J, Rudolph F, Goncharov A, Rudolph TK, Rudolph V, Friedrichs KP, and Dumitrescu D
- Abstract
Objective: Transcatheter mitral valve interventions (TMVI) have been proven to reduce symptom burden and improve outcomes in patients with severe mitral regurgitation (MR). However, the impact of right ventricular function (RVF) on exercise capacity in MR patients is less well understood., Methods: Cardiopulmonary exercise testing (CPET) is the most comprehensive approach to assess maximum exercise capacity. Submaximal exercise capacity (SEC), assessed by constant work rate exercise time testing (CWRET), is presumed to be relevant in daily life activities and gives a more differentiated physiological insight into the nature of exercise intolerance. Thus, 28 MR patients underwent CPET and CWRET (at 75% of the maximum work rate in the initial incremental exercise test) prior to TMVI and 3 months post-procedurally., Results: Patients' mean age was 75.0 ± 8.7 years and 32.1% were female. One patient presented with an MR reduction of less than two grades. RVF was at least moderately impaired in 25% of the patients. SEC of these patients was lower but did not significantly differ (416.4s ± 359.6 vs. 296.1 ± 216.5s; p=) from patients without RVF-deterioration. At follow-up, the SEC improved significantly (from 337.4 ± 262.2s to 517.4 ± 393.5s; p = 0.006). Maximum oxygen uptake (peakVO
2 ) showed a positive trend, but no statistically significant difference (10.3 ± 3.1 ml/min/kg vs. 11.3 ± 3.4 ml/min/kg; p = 0.06). RVF improved in 35.7% of the patients and these patients showed a significantly higher SEC increase (471.7 ± 153.9s vs. 82.7 ± 47.0s, p = 0.003)., Conclusion: SEC is significantly increased in MR patients undergoing TMVI, reflecting an improvement, especially regarding daily life activities. This may be related to TMVIś beneficial effect on right ventricular remodeling., Competing Interests: Disclosures Volker Rudolph, Kai P. Friedrichs, and Maria Ivannikova received speaker honoraria and grants from Abbott and Edwards. Muhammed Gerçek received consulting honoraria from Edwards. The other authors declare no conflict of interest., (Copyright © 2024 Hellenic Society of Cardiology. Publishing services by Elsevier Inc. All rights reserved.)- Published
- 2024
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- View/download PDF
21. Exercise testing in patients with tricuspid regurgitation undergoing transcatheter tricuspid valve intervention.
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Gerçek M, Ivannikova M, Goncharov A, Gerçek M, Mörsdorf M, Kirchner J, Rudolph F, Rudolph TK, Rudolph V, Friedrichs KP, and Dumitrescu D
- Abstract
Background: Transcatheter tricuspid valve intervention (TTVI) has shown promising results with persistent reduction of tricuspid regurgitation (TR) and improvements in functional class and quality of life (QOL)., Objectives: To analyze the impact of TTVI on maximal and submaximal exercise capacity (SEC)., Methods: Constant work-rate exercise-time (CWRET) testing reflects SEC, which is more likely to be relevant for daily life activities and provides more differentiated physiological insight into the nature of exercise intolerance. Thus, 30 patients undergoing TTVI (21 direct annuloplasty and 9 edge-to-edge repair) received cardiopulmonary exercise testing (CPET) and CWRET (at 75% of maximum work rate in the initial CPET) before and 3 months after TTVI., Results: Patients' age was 80.5 [74.8-82.3] years and 53.3% were female. TR reduction ≥ 2 grades was achieved in 93.3% (TR grade ≤ moderate in 83.3%). Echocardiography revealed improved right ventricular (RV) characteristics with decreased RV basal diameter (47.0 mm [43.0-54.3] vs. 41.5 mm [36.8-48.0]; p < 0.001) and decreased inferior caval vein diameter. CWRET testing showed a significantly improved SEC (246.5 s [153.8-416.8] vs. 338.5 s [238.8-611.8] p = 0.001). Maximum oxygen uptake showed a positive trend without statistically significant differences (9.9 ml/min/kg [8.6-12.4] vs. 11.7 ml/min/kg [9.7-13.3]; p = 0.31). In contrast to the six-minute-walking distance (6MWD), SEC correlated moderately with effective regurgitation orifice area reduction (r = 0.385; p = 0.036), increased cardiac output (r = 0.378; p = 0.039), and improved QOL (r = 387; p = 0.035)., Conclusion: Improvements in exercise capacity after TTVI mainly occur in the submaximal rather than in the maximal exercise range and correlate with hemodynamic effects and QOL. This may have a methodological impact on assessment of exercise capacity in these patients., (© 2024. The Author(s).)
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- 2024
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22. Pressure waveform analysis for occlusion assessment significantly reduces contrast medium use in cryoballoon pulmonary vein isolation.
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Sciacca V, Fink T, Winnik S, Hamriti ME, Guckel D, Didenko M, Mörsdorf M, Braun M, Khalaph M, Imnadze G, Sommer P, and Sohns C
- Subjects
- Humans, Female, Male, Middle Aged, Treatment Outcome, Prospective Studies, Aged, Sensitivity and Specificity, Pulmonary Veins surgery, Atrial Fibrillation surgery, Atrial Fibrillation diagnostic imaging, Cryosurgery methods, Contrast Media
- Abstract
Background: Pulmonary vein (PV) occlusion is crucial for adequate lesion formation during cryoballoon-guided pulmonary vein isolation (CB-PVI). PV occlusion is usually confirmed by angiographies over the inflated balloon device. The aim of our study was to analyze the safety and efficacy of pressure waveform-based PV occlusion assessment during CB-PVI utilizing a novel fully integrated pressure analysis tool., Methods: Consecutive patients with symptomatic atrial fibrillation (AF) scheduled for CB-PVI were prospectively enrolled for pressure waveform-based PV occlusion assessment. A patient cohort receiving conventional angiographies served as control group. Patients with common PV ostia were excluded., Results: The study group consisted of 40 patients (16 females, mean age was 64.5 ± 9.7, 45% persistent AF). The control group consisted of 40 matched patients. All 160 PVs in the study group were successfully isolated without the use of additional venograms confirming PV occlusion. The mean procedure duration was 69 ± 12 min in the study group with a mean fluoroscopy duration of 11.5 ± 4.4 min. The mean contrast medium volume was 22 ± 9 ml in the study group and 36 ± 12 ml in the control group (p = 0.0001). Mean procedure duration, mean balloon temperatures, and mean ablation application durations did not differ significantly between the study and the control group. No periprocedural complications occurred., Conclusion: CB-PVI utilizing a fully integrated pressure waveform analysis tool to assess PV occlusion is feasible and safe and significantly reduces the amount of contrast medium without impact on procedural parameters and freedom from arrhythmia recurrence., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
23. Effects of plant diversity on productivity strengthen over time due to trait-dependent shifts in species overyielding.
- Author
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Zheng L, Barry KE, Guerrero-Ramírez NR, Craven D, Reich PB, Verheyen K, Scherer-Lorenzen M, Eisenhauer N, Barsoum N, Bauhus J, Bruelheide H, Cavender-Bares J, Dolezal J, Auge H, Fagundes MV, Ferlian O, Fiedler S, Forrester DI, Ganade G, Gebauer T, Haase J, Hajek P, Hector A, Hérault B, Hölscher D, Hulvey KB, Irawan B, Jactel H, Koricheva J, Kreft H, Lanta V, Leps J, Mereu S, Messier C, Montagnini F, Mörsdorf M, Müller S, Muys B, Nock CA, Paquette A, Parker WC, Parker JD, Parrotta JA, Paterno GB, Perring MP, Piotto D, Wayne Polley H, Ponette Q, Potvin C, Quosh J, Rewald B, Godbold DL, van Ruijven J, Standish RJ, Stefanski A, Sundawati L, Urgoiti J, Williams LJ, Wilsey BJ, Yang B, Zhang L, Zhao Z, Yang Y, Sandén H, Ebeling A, Schmid B, Fischer M, Kotowska MM, Palmborg C, Tilman D, Yan E, and Hautier Y
- Subjects
- Plants, Biomass, Forests, Grassland, Ecosystem, Biodiversity
- Abstract
Plant diversity effects on community productivity often increase over time. Whether the strengthening of diversity effects is caused by temporal shifts in species-level overyielding (i.e., higher species-level productivity in diverse communities compared with monocultures) remains unclear. Here, using data from 65 grassland and forest biodiversity experiments, we show that the temporal strength of diversity effects at the community scale is underpinned by temporal changes in the species that yield. These temporal trends of species-level overyielding are shaped by plant ecological strategies, which can be quantitatively delimited by functional traits. In grasslands, the temporal strengthening of biodiversity effects on community productivity was associated with increasing biomass overyielding of resource-conservative species increasing over time, and with overyielding of species characterized by fast resource acquisition either decreasing or increasing. In forests, temporal trends in species overyielding differ when considering above- versus belowground resource acquisition strategies. Overyielding in stem growth decreased for species with high light capture capacity but increased for those with high soil resource acquisition capacity. Our results imply that a diversity of species with different, and potentially complementary, ecological strategies is beneficial for maintaining community productivity over time in both grassland and forest ecosystems., (© 2024. The Author(s).)
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- 2024
- Full Text
- View/download PDF
24. The MedXFit-study - CrossFit as a workplace health intervention: a one-year, prospective, controlled, longitudinal, intervention study.
- Author
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Brandt T, Heinz E, Klaaßen Y, Limbara S, Mörsdorf M, Schinköthe T, and Schmidt A
- Subjects
- Humans, Exercise, Health Behavior, Prospective Studies, Data Accuracy, Workplace
- Abstract
Introduction: Workplace health interventions aim to motivate employees toward healthy behaviors to improve fitness and health in the long-term. We investigated whether CrossFit® is an effective training concept to achieve these goals in inactive employees with sedentary occupations., Methods: The study followed a prospective, controlled intervention design. Employees were invited to participate in intervention group (IG) or control group (CG) on their own preferences. Inclusion criteria were a predominantly sedentary occupation and execution of less than two muscle and/or mobility enhancing training sessions per week at the time of enrolling. The IG did at least two times a week a CrossFit training of 1 h. Mobility, strength, well-being, and back-issues were measured at the beginning, after 6, and 12 months. Participants in the CG were free to choose any other activities offered at the same time (e.g., circuit training, meditation, full body stability training). Adherence, respectively, behavioral change and maintenance qualities were evaluated based on the COM-B system and presence of behavior maintenance motives., Results: 89 employees were enrolled into the trial, from where 21 dropped out due to external factors (24%). From the remaining participants, 10 out of 39 (26%) in the IG and 1 out of 29 (4%) in the CG stopped for intrinsic reasons, leading to a non-adherence to the intervention of 22 percentage points. Motivation for behavioral change and maintenance in the IG was primarily driven by enhanced physical and psychological capability. Development of physical capability was evident by significant improvements ( p < 0.001) in the IG compared to the CG for mobility ( d = 3.3), maximal isometric strength (min. d = 1.7, max. d = 2.5), as well as reduction in pain intensity ( p = 0.003, r = 0.4) and frequency ( p = 0.009, r = 0.35) after 12 months. Significant improvements between the 6-month and the 12-month measurement in mobility and 6 out of 8 strength measures within the IG indicated the effectiveness of CrossFit beyond the beginner phase., Conclusion: CrossFit is a motivating training concept that led to long-term health and fitness improvements in inactive employees doing sedentary work and should be given greater consideration in workplace health promotion., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Brandt, Heinz, Klaaßen, Limbara, Mörsdorf, Schinköthe and Schmidt.)
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- 2024
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25. Effects of understory characteristics on browsing patterns of roe deer in central European mountain forests.
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Schwegmann S, Mörsdorf M, Bhardwaj M, and Storch I
- Abstract
Selective browsing by deer on young trees may impede the management goal of increasing forest resilience against climate change and other disturbances. Deer population density is often considered the main driver of browsing impacts on young trees, however, a range of other variables such as food availability also affect this relationship. In this study, we use browsing survey data from 135 research plots to explore patterns of roe deer ( Capreolus capreolus ) browsing pressure on woody plants in mountainous forests in central Europe. We fitted species-specific generalised linear mixed models for eight woody taxa, assessing the potential effects of understory characteristics, roe deer abundance and lying deadwood on browsing intensity. Our study reveals conspecific and associational effects for woody taxa that are intermediately browsed by roe deer. Selective browsing pressure was mediated by preferences of plants, in that, browsing of strongly preferred woody taxa as for example mountain ash ( Sorbus aucuparia ) and of least preferred woody taxa, for example Norway spruce ( Picea abies ) was not affected by the surrounding understory vegetation, while browsing pressure on intermediately browsed species like for example silver fir ( Abies alba ) was affected by understory characteristics. Contrary to our expectations, roe deer abundance was only positively associated with browsing pressure on silver fir and bilberry ( Vaccinium myrtillus ), while all other plants were unaffected by deer abundance. Finally, we did not find an influence of lying deadwood volume on the browsing pressure on any woody-plant species. Overall, our results indicate that patterns in browsing preference and intensity are species-specific processes and are partly affected by the surrounding understory vegetation. Current management strategies that aim to reduce browsing pressure through culling may be inefficient as they do not address other drivers of browsing pressure. However, managers also need to consider the characteristics of the local understory vegetation in addition to deer abundance and design species-specific plans to reduce browsing on woody plant taxa., Competing Interests: The authors declare no conflict of interests., (© 2023 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.)
- Published
- 2023
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26. Direct comparison of two 50 W high power short duration approaches-Temperature- versus ablation index-guided radiofrequency ablation for atrial fibrillation.
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Guckel D, Bergau L, Braun M, El Hamriti M, Mörsdorf M, Fink T, Sciacca V, Khalaph M, Imnadze G, Sommer P, and Sohns C
- Subjects
- Humans, Temperature, Treatment Outcome, Recurrence, Atrial Fibrillation diagnosis, Atrial Fibrillation surgery, Atrial Fibrillation etiology, Pulmonary Veins surgery, Catheter Ablation adverse effects, Catheter Ablation methods, Radiofrequency Ablation
- Abstract
Introduction: Approaches applying higher energy levels for shorter periods (high power short duration, HPSD) to improve lesion formation for atrial fibrillation (AF) ablation have been introduced. This single-center study aimed to compare the efficacy, safety, and lesion formation using the novel DiamondTemp (DT) catheter or an ablation index (AI)-guided HPSD ablation protocol using a force-sensing catheter with surround-flow irrigation., Methods: One hundred thirteen consecutive patients undergoing radiofrequency-guided catheter ablation (RFCA) for AF were included. Forty-five patients treated with the DT catheter (50 W, 9 s), were compared to 68 consecutive patients undergoing AI-guided ablation (AI anterior 550; AI posterior 400) adherent to a 50 W HPSD protocol. Procedural data and AF recurrence were evaluated., Results: Acute procedural success was achieved in all patients (n = 113, 100%). DT-guided AF ablation was associated with a longer mean procedure duration (99.10 ± 28.30 min vs. 78.24 ± 25.55, p < .001) and more RF applications (75.24 ± 30.76 min vs. 61.27 ± 14.06, p = .019). RF duration (792.13 ± 311.23 s vs. 1035.54 ± 287.24 s, p < .001) and fluoroscopy dose (183.81 ± 178.13 vs. 295.80 ± 247.54 yGym
2 , p = .013) were lower in the DT group. AI-guided HPSD was associated with a higher AF-free survival rate without reaching statistical significance (p = .088). Especially patients with PERS AF (p = .009) as well as patients with additional atrial arrhythmia substrate (p = .002) benefited from an AI-guided ablation strategy., Conclusion: Temperature- and AI- controlled HPSD RFCA using 50 W was safe and effective. AI-guided HPSD ablation seems to be associated with shorter procedure durations and fewer RF applications. Particularly in advanced AF, freedom from AF-recurrence may be improved using an AI-guided HPSD approach., (© 2022 The Authors. Journal of Cardiovascular Electrophysiology published by Wiley Periodicals LLC.)- Published
- 2022
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27. MedXFit-Effects of 6 months CrossFit® in sedentary and inactive employees: A prospective, controlled, longitudinal, intervention study.
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Brandt T, Schmidt A, Schinköthe T, Heinz E, Klaaßen Y, Limbara S, and Mörsdorf M
- Abstract
Background and Aims: Sedentary behavior and physical inactivity are associated with musculoskeletal disorders (MSD). Muscle and mobility enhancing training is recommended to promote musculoskeletal fitness and prevent MSD. A functional fitness program emphasizing the importance of musculoskeletal fitness is provided by CrossFit®. However, data from long-term CrossFit® interventions assessing measures of musculoskeletal fitness in sedentary and inactive individuals does not exist., Methods: Thi s prospective, controlled study investigates the effects of 6 months CrossFit® training (2×60 min/week) in inactive adults (in terms of <2 muscle or mobility enhancing training sessions per week) with predominantly sitting or standing occupations. 91 participants were initially assessed, 2 were excluded, 55 self-selected for intervention (IG), and 34 for the control group (CG). Primary endpoint was a change in mobility (Functional Movement Screen score). Secondary endpoints were changed in strength (maximum isometric strength in kg; Dr. Wolff BackCheck®), and well-being (WHO-5 score). Key exploratory endpoints were changes in back-issue measures (pain intensity, limitation, and frequency)., Results: 39 participants of IG and 31 of CG completed the evaluation after 6 months. The IG improved significantly more ( p < 0.001) compared with the CG in the FMS ( η ² = 0.58), trunk extension ( η ² = 0.46), trunk flexion ( η ² = 0.47), trunk lateral flexion left ( η ² = 0.41), trunk lateral flexion right ( η ² = 0.42), upper body push ( η ² = 0.4), upper body pull ( η ² = 0.25), hip extension left ( η ² = 0.18), and hip extension right ( η ² = 0.4). Change of WHO-5 scores did not significantly differ between groups ( p = 0.55; η ² = 0.01). Exploratory analysis of back-issue data showed a higher decrease for pain intensity, limitation, and frequency in the IG compared with the CG., Conclusion: This study proves for the first time within the scope of a prospective, controlled study the broad benefits of CrossFit® in inactive adults doing predominantly sedentary work., Competing Interests: The results of this study are presented clearly, honestly, and without fabrication, falsification, or inappropriate data manipulation. The results of the present study do not constitute an endorsement by the American College of Sports Medicine. Professional relationships with companies or manufacturers who will benefit from the results of the present study do not exist. The authors declare that they have no conflict of interest., (© 2022 The Authors. Health Science Reports published by Wiley Periodicals LLC.)
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- 2022
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28. Global maps of soil temperature.
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Lembrechts JJ, van den Hoogen J, Aalto J, Ashcroft MB, De Frenne P, Kemppinen J, Kopecký M, Luoto M, Maclean IMD, Crowther TW, Bailey JJ, Haesen S, Klinges DH, Niittynen P, Scheffers BR, Van Meerbeek K, Aartsma P, Abdalaze O, Abedi M, Aerts R, Ahmadian N, Ahrends A, Alatalo JM, Alexander JM, Allonsius CN, Altman J, Ammann C, Andres C, Andrews C, Ardö J, Arriga N, Arzac A, Aschero V, Assis RL, Assmann JJ, Bader MY, Bahalkeh K, Barančok P, Barrio IC, Barros A, Barthel M, Basham EW, Bauters M, Bazzichetto M, Marchesini LB, Bell MC, Benavides JC, Benito Alonso JL, Berauer BJ, Bjerke JW, Björk RG, Björkman MP, Björnsdóttir K, Blonder B, Boeckx P, Boike J, Bokhorst S, Brum BNS, Brůna J, Buchmann N, Buysse P, Camargo JL, Campoe OC, Candan O, Canessa R, Cannone N, Carbognani M, Carnicer J, Casanova-Katny A, Cesarz S, Chojnicki B, Choler P, Chown SL, Cifuentes EF, Čiliak M, Contador T, Convey P, Cooper EJ, Cremonese E, Curasi SR, Curtis R, Cutini M, Dahlberg CJ, Daskalova GN, de Pablo MA, Della Chiesa S, Dengler J, Deronde B, Descombes P, Di Cecco V, Di Musciano M, Dick J, Dimarco RD, Dolezal J, Dorrepaal E, Dušek J, Eisenhauer N, Eklundh L, Erickson TE, Erschbamer B, Eugster W, Ewers RM, Exton DA, Fanin N, Fazlioglu F, Feigenwinter I, Fenu G, Ferlian O, Fernández Calzado MR, Fernández-Pascual E, Finckh M, Higgens RF, Forte TGW, Freeman EC, Frei ER, Fuentes-Lillo E, García RA, García MB, Géron C, Gharun M, Ghosn D, Gigauri K, Gobin A, Goded I, Goeckede M, Gottschall F, Goulding K, Govaert S, Graae BJ, Greenwood S, Greiser C, Grelle A, Guénard B, Guglielmin M, Guillemot J, Haase P, Haider S, Halbritter AH, Hamid M, Hammerle A, Hampe A, Haugum SV, Hederová L, Heinesch B, Helfter C, Hepenstrick D, Herberich M, Herbst M, Hermanutz L, Hik DS, Hoffrén R, Homeier J, Hörtnagl L, Høye TT, Hrbacek F, Hylander K, Iwata H, Jackowicz-Korczynski MA, Jactel H, Järveoja J, Jastrzębowski S, Jentsch A, Jiménez JJ, Jónsdóttir IS, Jucker T, Jump AS, Juszczak R, Kanka R, Kašpar V, Kazakis G, Kelly J, Khuroo AA, Klemedtsson L, Klisz M, Kljun N, Knohl A, Kobler J, Kollár J, Kotowska MM, Kovács B, Kreyling J, Lamprecht A, Lang SI, Larson C, Larson K, Laska K, le Maire G, Leihy RI, Lens L, Liljebladh B, Lohila A, Lorite J, Loubet B, Lynn J, Macek M, Mackenzie R, Magliulo E, Maier R, Malfasi F, Máliš F, Man M, Manca G, Manco A, Manise T, Manolaki P, Marciniak F, Matula R, Mazzolari AC, Medinets S, Medinets V, Meeussen C, Merinero S, Mesquita RCG, Meusburger K, Meysman FJR, Michaletz ST, Milbau A, Moiseev D, Moiseev P, Mondoni A, Monfries R, Montagnani L, Moriana-Armendariz M, Morra di Cella U, Mörsdorf M, Mosedale JR, Muffler L, Muñoz-Rojas M, Myers JA, Myers-Smith IH, Nagy L, Nardino M, Naujokaitis-Lewis I, Newling E, Nicklas L, Niedrist G, Niessner A, Nilsson MB, Normand S, Nosetto MD, Nouvellon Y, Nuñez MA, Ogaya R, Ogée J, Okello J, Olejnik J, Olesen JE, Opedal ØH, Orsenigo S, Palaj A, Pampuch T, Panov AV, Pärtel M, Pastor A, Pauchard A, Pauli H, Pavelka M, Pearse WD, Peichl M, Pellissier L, Penczykowski RM, Penuelas J, Petit Bon M, Petraglia A, Phartyal SS, Phoenix GK, Pio C, Pitacco A, Pitteloud C, Plichta R, Porro F, Portillo-Estrada M, Poulenard J, Poyatos R, Prokushkin AS, Puchalka R, Pușcaș M, Radujković D, Randall K, Ratier Backes A, Remmele S, Remmers W, Renault D, Risch AC, Rixen C, Robinson SA, Robroek BJM, Rocha AV, Rossi C, Rossi G, Roupsard O, Rubtsov AV, Saccone P, Sagot C, Sallo Bravo J, Santos CC, Sarneel JM, Scharnweber T, Schmeddes J, Schmidt M, Scholten T, Schuchardt M, Schwartz N, Scott T, Seeber J, Segalin de Andrade AC, Seipel T, Semenchuk P, Senior RA, Serra-Diaz JM, Sewerniak P, Shekhar A, Sidenko NV, Siebicke L, Siegwart Collier L, Simpson E, Siqueira DP, Sitková Z, Six J, Smiljanic M, Smith SW, Smith-Tripp S, Somers B, Sørensen MV, Souza JJLL, Souza BI, Souza Dias A, Spasojevic MJ, Speed JDM, Spicher F, Stanisci A, Steinbauer K, Steinbrecher R, Steinwandter M, Stemkovski M, Stephan JG, Stiegler C, Stoll S, Svátek M, Svoboda M, Tagesson T, Tanentzap AJ, Tanneberger F, Theurillat JP, Thomas HJD, Thomas AD, Tielbörger K, Tomaselli M, Treier UA, Trouillier M, Turtureanu PD, Tutton R, Tyystjärvi VA, Ueyama M, Ujházy K, Ujházyová M, Uogintas D, Urban AV, Urban J, Urbaniak M, Ursu TM, Vaccari FP, Van de Vondel S, van den Brink L, Van Geel M, Vandvik V, Vangansbeke P, Varlagin A, Veen GF, Veenendaal E, Venn SE, Verbeeck H, Verbrugggen E, Verheijen FGA, Villar L, Vitale L, Vittoz P, Vives-Ingla M, von Oppen J, Walz J, Wang R, Wang Y, Way RG, Wedegärtner REM, Weigel R, Wild J, Wilkinson M, Wilmking M, Wingate L, Winkler M, Wipf S, Wohlfahrt G, Xenakis G, Yang Y, Yu Z, Yu K, Zellweger F, Zhang J, Zhang Z, Zhao P, Ziemblińska K, Zimmermann R, Zong S, Zyryanov VI, Nijs I, and Lenoir J
- Subjects
- Climate Change, Microclimate, Temperature, Ecosystem, Soil
- Abstract
Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation canopies and near the ground surface, where critical ecosystem functions occur and most terrestrial species reside. Here, we provide global maps of soil temperature and bioclimatic variables at a 1-km
2 resolution for 0-5 and 5-15 cm soil depth. These maps were created by calculating the difference (i.e. offset) between in situ soil temperature measurements, based on time series from over 1200 1-km2 pixels (summarized from 8519 unique temperature sensors) across all the world's major terrestrial biomes, and coarse-grained air temperature estimates from ERA5-Land (an atmospheric reanalysis by the European Centre for Medium-Range Weather Forecasts). We show that mean annual soil temperature differs markedly from the corresponding gridded air temperature, by up to 10°C (mean = 3.0 ± 2.1°C), with substantial variation across biomes and seasons. Over the year, soils in cold and/or dry biomes are substantially warmer (+3.6 ± 2.3°C) than gridded air temperature, whereas soils in warm and humid environments are on average slightly cooler (-0.7 ± 2.3°C). The observed substantial and biome-specific offsets emphasize that the projected impacts of climate and climate change on near-surface biodiversity and ecosystem functioning are inaccurately assessed when air rather than soil temperature is used, especially in cold environments. The global soil-related bioclimatic variables provided here are an important step forward for any application in ecology and related disciplines. Nevertheless, we highlight the need to fill remaining geographic gaps by collecting more in situ measurements of microclimate conditions to further enhance the spatiotemporal resolution of global soil temperature products for ecological applications., (© 2022 The Authors. Global Change Biology published by John Wiley & Sons Ltd.)- Published
- 2022
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29. Light heterogeneity affects understory plant species richness in temperate forests supporting the heterogeneity-diversity hypothesis.
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Helbach J, Frey J, Messier C, Mörsdorf M, and Scherer-Lorenzen M
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One of the most important drivers for the coexistence of plant species is the resource heterogeneity of a certain environment, and several studies in different ecosystems have supported this resource heterogeneity-diversity hypothesis. However, to date, only a few studies have measured heterogeneity of light and soil resources below forest canopies to investigate their influence on understory plant species richness. Here, we aim to determine (1) the influence of forest stand structural complexity on the heterogeneity of light and soil resources below the forest canopy and (2) whether heterogeneity of resources increases understory plant species richness. Measures of stand structural complexity were obtained through inventories and remote sensing techniques in 135 1-ha study plots of temperate forests, established along a gradient of forest structural complexity. We measured light intensity and soil chemical properties on six 25 m² subplots on each of these 135 plots and surveyed understory vegetation. We calculated the coefficient of variation of light and soil parameters to obtain measures of resource heterogeneity and determined understory plant species richness at plot level. Spatial heterogeneity of light and of soil pH increased with higher stand structural complexity, although heterogeneity of soil pH did not increase in conditions of generally high levels of light availability. Increasing light heterogeneity was also associated with increasing understory plant species richness. However, light heterogeneity had no such effects in conditions where soil resource heterogeneity (variation in soil C:N ratios) was low. Our results support the resource heterogeneity-diversity hypothesis for temperate forest understory at the stand scale. Our results also highlight the importance of interaction effects between the heterogeneity of both light and soil resources in determining plant species richness., Competing Interests: The authors declare no conflict of interest., (© 2022 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.)
- Published
- 2022
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30. Perfusion-weighted Magnetic Resonance Imaging in Patients with Vasospasm: A Useful New Tool in the Management of Patients with Subarachnoid Hemorrhage.
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Hertel F, Walter C, Bettag M, and Mörsdorf M
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- 2006
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31. Perfusion-weighted magnetic resonance imaging in patients with vasospasm: a useful new tool in the management of patients with subarachnoid hemorrhage.
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Hertel F, Walter C, Bettag M, and Mörsdorf M
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- Adult, Aged, Female, Humans, Male, Middle Aged, Ultrasonography, Doppler, Transcranial, Magnetic Resonance Imaging methods, Subarachnoid Hemorrhage complications, Vasospasm, Intracranial diagnosis, Vasospasm, Intracranial etiology
- Abstract
Objective: Cerebral vasospasm (VSP) is one of the most important risk factors for the development of a delayed neurological deficit after subarachnoid hemorrhage (SAH). Perfusion-weighted magnetic resonance imaging (pwMRI) provides the possibility of detecting tissue at risk for infarction. The objective of our study was to evaluate the feasibility and impact of pwMRI in the management of SAH patients., Methods: From a consecutive series of 180 patients experiencing SAH and treated at our institution over a 3-year period, we identified 20 who underwent pwMRI during their acute illness. For these 20 patients, the results of pwMRI were compared with the results of diffusion-weighted MRI, transcranial Doppler sonography, and neurological examinations performed at the same time and with repeated pwMRI examinations of the same patient at different times., Results: Nineteen of 20 patients showed perfusion changes predominantly in the time maps. Fifteen of 19 patients with changes in pwMRI had a neurological deficit at the same time. In 7 of 15 patients with neurological deterioration, transcranial Doppler sonography showed signs of VSP, whereas all 15 patients showed alterations in pwMRI. The areas of perfusion changes in pwMRI correlated well with the neurological deficits of the patients and were larger than the areas of changed diffusion in diffusion-weighted MRI performed at the same time. There were no clinical complications with regard to the pwMRI examinations., Conclusion: pwMRI is safe and helpful in the management of patients with VSP after SAH. The sensitivity of pwMRI is higher than that of transcranial Doppler sonography in the detection of decreased perfusion as a result of VSP. pwMRI can detect tissue at risk before definitive infarction occurs and therefore may lead to a change of therapy in those patients.
- Published
- 2005
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