82 results on '"Niklewski T"'
Search Results
2. Left Ventricular Assist Device Implantation in Patients With Optimal and Borderline Echocardiographic Assessment of Right Ventricle Function
- Author
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Nadziakiewicz, P., Niklewski, T., Szyguła-Jurkiewicz, B., Pacholewicz, J., Zakliczyński, M., Przybyłowski, P., Krauchuk, A., and Zembala, M.
- Published
- 2018
- Full Text
- View/download PDF
3. Comparison of Mechanical Circulatory Support by the Use of Pulsatile Left Ventricular Assist Devices Polvad MEV and Continuous Flow Heart Ware and Heart Mate II in a Single-Center Experience
- Author
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Nadziakiewicz, P., Pacholewicz, J., Zakliczynski, M., Niklewski, T., Borkowski, J., Hrapkowicz, T., and Zembala, M.
- Published
- 2016
- Full Text
- View/download PDF
4. Effects of Left Ventricular Assist Device Support on End-Organ Function in Patients With Heart Failure: Comparison of Pulsatile- and Continuous-Flow Support in a Single-Center Experience
- Author
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Nadziakiewicz, P., Szygula-Jurkiewicz, B., Niklewski, T., Pacholewicz, J., Zakliczynski, M., Borkowski, J., Hrapkowicz, T., and Zembala, M.
- Published
- 2016
- Full Text
- View/download PDF
5. Right Ventricular Function in Patients With Left Ventricular Assist Device Support by Pulsatile Polvad MEV and Continuous-Flow Pumps Heartware and Heartmate II
- Author
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Nadziakiewicz, P., Borkowski, J., Szygula-Jurkiewicz, B., Niklewski, T., Pacholewicz, J., Zakliczynski, M., Hrapkowicz, T., and Zembala, M.
- Published
- 2016
- Full Text
- View/download PDF
6. Right Ventricular Free Wall Strain RVFWS as a Predictor of Outcome in Heart Transplantation Patients with COVID19 Disease
- Author
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Malyszek Tumidajewicz, J., primary, Glanowska, M., additional, Niklewski, T., additional, Mroz, K., additional, Glanowski, M., additional, and Zembala, M., additional
- Published
- 2022
- Full Text
- View/download PDF
7. The Evaluation of Alterations in Myocardial Deformation during Therapy of Acute Cellular Rejection
- Author
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Antonczyk, K., primary, Antonczyk, R., additional, Niklewski, T., additional, Malyszek-Tumidajewicz, J., additional, Zembala, M.O., additional, Przybylowski, P., additional, and Kukulski, T., additional
- Published
- 2020
- Full Text
- View/download PDF
8. Assessment of Myocardial Strain Using Speckle Tracking Echocardiography Within the First 12 Months After Orthotopic Heart Transplantation
- Author
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Antończyk, K., primary, Niklewski, T., additional, Antończyk, R., additional, Zakliczyński, M., additional, Zembala, M., additional, and Kukulski, T., additional
- Published
- 2018
- Full Text
- View/download PDF
9. Simplified, Less-Invasive LVAD Implantation in Redo Patients
- Author
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Zembala, M.O., primary, Antonczyk, R., additional, Waszak, J., additional, Niklewski, T., additional, Wolny, T., additional, and Zembala, M., additional
- Published
- 2018
- Full Text
- View/download PDF
10. (843) - Assessment of Myocardial Strain Using Speckle Tracking Echocardiography Within the First 12 Months After Orthotopic Heart Transplantation
- Author
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Antończyk, K., Niklewski, T., Antończyk, R., Zakliczyński, M., Zembala, M., and Kukulski, T.
- Published
- 2018
- Full Text
- View/download PDF
11. (235) - Simplified, Less-Invasive LVAD Implantation in Redo Patients
- Author
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Zembala, M.O., Antonczyk, R., Waszak, J., Niklewski, T., Wolny, T., and Zembala, M.
- Published
- 2018
- Full Text
- View/download PDF
12. Should Companies Increase Size or Improve their CSR Profile in order to Improve their Performance?: Evidence from UK listed Firms
- Author
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Kalaitzoglou, Iordanis, Niklewski, T., Pan, Hui, Audencia Recherche, and Audencia Business School
- Subjects
[STAT.AP]Statistics [stat]/Applications [stat.AP] ,Endogeneity ,Corporate Size ,Corporate Social Responsibility (CSR) ,[SHS.ECO]Humanities and Social Sciences/Economics and Finance ,Corporate Financial Performance (CFP) - Abstract
This study proposes an empirical model to investigate the inter-relations among Corporate Social Responsibility (CSR), Corporate Financial Performance (CFP) and size, while accounting for liquidity and exposure to financial default risk. The analytical focus lies on potential endogeneity issues, which are investigated employing a system of equations, estimated using the Generalized Method of Moments (GMM) technique. A non-industry-specific sample is employed, consisting of 233 companies included in FTSE 250, from 2003 to 2010. The main findings strongly indicate that UK market is sensitive to firms' social profiles, which are found to be endogenous related to both size and performance. Furthermore, CSR is asymmetrically related to performance, where excessive or no investment in CSR are the most rewarding financially. This supports the hypothesis in Barnett and Salomon (2012) that the relationship between corporate social performance and corporate financial performance follows a U-shaped pattern. We also find larger and more profitable companies are more likely to invest in CSR, which in turn further contributes to both, probably due to increased visibility. This is a strong indication that size might be a significant determinant of the shape of the CSR-CFP relationship and that CSR activities constitute a long term investment.
- Published
- 2013
13. Should Companies Increase Size or Improve their CSR Profile in order to Improve their Performance?
- Author
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Kalaitzoglou, Iordanis, Niklewski, T., Pan, Hui, and Kalaitzoglou, Iordanis
- Subjects
Endogeneity ,[STAT.AP] Statistics [stat]/Applications [stat.AP] ,Corporate Size ,Corporate Social Responsibility (CSR) ,[SHS.ECO] Humanities and Social Sciences/Economics and Finance ,Corporate Financial Performance (CFP) - Abstract
This study proposes an empirical model to investigate the inter-relations among Corporate Social Responsibility (CSR), Corporate Financial Performance (CFP) and size, while accounting for liquidity and exposure to financial default risk. The analytical focus lies on potential endogeneity issues, which are investigated employing a system of equations, estimated using the Generalized Method of Moments (GMM) technique. A non-industry-specific sample is employed, consisting of 233 companies included in FTSE 250, from 2003 to 2010. The main findings strongly indicate that UK market is sensitive to firms' social profiles, which are found to be endogenous related to both size and performance. Furthermore, CSR is asymmetrically related to performance, where excessive or no investment in CSR are the most rewarding financially. This supports the hypothesis in Barnett and Salomon (2012) that the relationship between corporate social performance and corporate financial performance follows a U-shaped pattern. We also find larger and more profitable companies are more likely to invest in CSR, which in turn further contributes to both, probably due to increased visibility. This is a strong indication that size might be a significant determinant of the shape of the CSR-CFP relationship and that CSR activities constitute a long term investment.
- Published
- 2013
14. Poster session II * Thursday 9 December 2010, 14:00-18:00
- Author
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Pabari, P. A., primary, Kyriacou, A., additional, Moraldo, M., additional, Unsworth, B., additional, Baruah, R., additional, Sutaria, N., additional, Hughes, A., additional, Mayet, J., additional, Francis, D. P., additional, Uejima, T., additional, Loboz, K., additional, Antonini-Canterin, F., additional, Polombo, C., additional, Carerj, S., additional, Vinereanu, D., additional, Evangelista, A., additional, Leftheriotis, G., additional, Fraser, A. G., additional, Kiotsekoglou, A., additional, Govindan, M., additional, Govind, S. C., additional, Saha, S. K., additional, Camm, A. J., additional, Azcarate, P. M., additional, Castano, S., additional, Rodriguez-Manero, M., additional, Arraiza, M., additional, Levy, B., additional, Barba, J., additional, Rabago, G., additional, Bastarrika, G., additional, Nemes, A., additional, Takacs, R., additional, Varkonyi, T., additional, Gavaller, H., additional, Baczko, I., additional, Forster, T., additional, Wittmann, T., additional, Papp, J. G., additional, Lengyel, C., additional, Varro, A., additional, Tumasyan, L. R., additional, Adamyan, K. G., additional, Savu, O., additional, Mieghem, T., additional, Dekoninck, P., additional, Gucciardo, L., additional, Jurcut, R., additional, Giusca, S., additional, Popescu, B. A., additional, Ginghina, C., additional, Deprest, J., additional, Voigt, J. U., additional, Versiero, M., additional, Galderisi, M., additional, Esposito, R., additional, Rapacciuolo, A., additional, Esposito, G., additional, Raia, R., additional, Morgillo, T., additional, Piscione, F., additional, De Simone, G., additional, Oraby, M. A., additional, Maklady, F. A., additional, Mohamed, E. M., additional, Eraki, A. Z., additional, Zaliaduonyte-Peksiene, D., additional, Tamuleviciute, E., additional, Janenaite, J., additional, Marcinkeviciene, J., additional, Mizariene, V., additional, Bucyte, S., additional, Vaskelyte, J., additional, Trifunovic, D., additional, Nedeljkovic, I., additional, Popovic, D., additional, Ostojic, M., additional, Vujisic-Tesic, B., additional, Petrovic, M., additional, Stankovic, S., additional, Sobic-Saranovic, D., additional, Banovic, M., additional, Dikic-Djordjevic, A., additional, Savino, K., additional, Lilli, A., additional, Grikstaite, E., additional, Giglio, V., additional, Bordoni, E., additional, Maragoni, G., additional, Cavallini, C., additional, Ambrosio, G., additional, Jakovljevic, B., additional, Beleslin, B., additional, Nedeljkovic, M., additional, Petrovic, O., additional, Moral, S., additional, Rodriguez-Palomares, J., additional, Descalzo, M., additional, Marti, G., additional, Pineda, V., additional, Mahia, P., additional, Gutierrez, L., additional, Gonzalez-Alujas, T., additional, Garcia-Dorado, D., additional, Schnell, F., additional, Donal, E., additional, Thebault, C., additional, Bernard, A., additional, Corbineau, H., additional, Le Breton, H., additional, Kochanowski, J., additional, Scislo, P., additional, Piatkowski, R., additional, Roik, M., additional, Marchel, M., additional, Kosior, D., additional, Opolski, G., additional, Lesniak-Sobelga, A. M., additional, Wicher-Muniak, E., additional, Kostkiewicz, M., additional, Olszowska, M., additional, Suchon, E., additional, Klimeczek, P., additional, Banys, P., additional, Pasowicz, M., additional, Tracz, W., additional, Podolec, P., additional, Laynez, A., additional, Hoefsten, D. E., additional, Loegstrup, B. B., additional, Norager, B., additional, Moller, J. E., additional, Flyvbjerg, A., additional, Egstrup, K., additional, Streb, W., additional, Szulik, M., additional, Nowak, J., additional, Markowicz-Pawlus, E., additional, Duszanska, A., additional, Sedkowska, A., additional, Kalarus, Z., additional, Kukulski, T., additional, Spinelli, L., additional, Morisco, C., additional, Assante Di Panzillo, E., additional, Buono, F., additional, Crispo, S., additional, Trimarco, B., additional, Hawary, A. A., additional, Nasr, G. M., additional, Fawzy, M. M., additional, Faber, L., additional, Scholtz, W., additional, Boergermann, J., additional, Wiemer, M., additional, Kleikamp, G., additional, Bogunovic, N., additional, Dimitriadis, Z., additional, Gummert, J., additional, Hering, D., additional, Horstkotte, D., additional, Luca', F., additional, Gelsomino, S., additional, Lorusso, R., additional, Caciolli, S., additional, Carella, R., additional, Bille', G., additional, De Cicco, G., additional, Pazzagli, V., additional, Gensini, G. F., additional, Borowiec, A., additional, Dabrowski, R., additional, Janas, J., additional, Kraska, A., additional, Firek, B., additional, Kowalik, I., additional, Szwed, H., additional, Marcus, K. A., additional, De Korte, C. L., additional, Feuth, T., additional, Thijssen, J. M., additional, Kapusta, L., additional, Dahl, J., additional, Videbaek, L., additional, Poulsen, M. K., additional, Pellikka, P. A., additional, Veien, K., additional, Andersen, L. I., additional, Haghfelt, T., additional, Haberka, M., additional, Mizia - Stec, K., additional, Adamczyk, T., additional, Mizia, M., additional, Chmiel, A., additional, Pysz, P., additional, Sosnowski, M., additional, Gasior, Z., additional, Trusz - Gluza, M., additional, Tendera, M., additional, Niklewski, T., additional, Wilczek, K., additional, Chodor, P., additional, Podolecki, T., additional, Frycz-Kurek, A., additional, Zembala, M., additional, Yurdakul, S., additional, Yildirimturk, O., additional, Tayyareci, Y., additional, Memic, K., additional, Demiroglu, I. C. C., additional, Aytekin, S., additional, Garcia Alonso, C. J., additional, Ferrer Sistach, E., additional, Delgado, L., additional, Lopez Ayerbe, J., additional, Vallejo Camazon, N., additional, Gual Capllonch, F., additional, Espriu Simon, M., additional, Ruyra, X., additional, Caballero Parrilla, A., additional, Bayes Genis, A., additional, Lecuyer, L., additional, Berrebi, A., additional, Florens, E., additional, Noghin, M., additional, Huerre, C., additional, Achouh, P., additional, Zegdi, R., additional, Fabiani, J. N., additional, De Chiara, B., additional, Moreo, A., additional, Musca, F., additional, De Marco, F., additional, Lobiati, E., additional, Belli, O., additional, Mauri, F., additional, Klugmann, S., additional, Caballero, A., additional, Vallejo, N., additional, Gonzalez Guardia, A., additional, Nunez Aragon, R., additional, Bosch, C., additional, Ferrer, E., additional, Pedro Botet, M. L., additional, Gual, F., additional, Cusma-Piccione, M., additional, Zito, C., additional, Oreto, G., additional, Giuffre, R., additional, Todaro, M. C., additional, Barbaro, C. M., additional, Lanteri, S., additional, Longordo, C., additional, Salvia, J., additional, Bensaid, A., additional, Gallet, R., additional, Fougeres, E., additional, Lim, P., additional, Nahum, J., additional, Deux, J. F., additional, Gueret, P., additional, Teiger, E., additional, Dubois-Rande, J. L., additional, Monin, J. L., additional, Behramoglu, F., additional, Colakoglu, Z., additional, Aytekin, V., additional, Demiroglu, C., additional, Gargani, L., additional, Poggianti, E., additional, Bucalo, R., additional, Rizzo, M., additional, Agrusta, F., additional, Landi, P., additional, Sicari, R., additional, Picano, E., additional, Sutandar, A., additional, Siswanto, B. B., additional, Irmalita, I., additional, Harimurti, G., additional, Hayashi, S. Y., additional, Nascimento, M. M., additional, Lindholm, B., additional, Lind, B., additional, Seeberger, A., additional, Pachaly, M. A., additional, Riella, M. C., additional, Bjallmark, A., additional, Brodin, L. A., additional, Poanta, L., additional, Porojan, M., additional, Dumitrascu, D. L., additional, Ikonomidis, I., additional, Tzortzis, S., additional, Lekakis, J., additional, Kremastinos, D. T., additional, Paraskevaidis, I., additional, Andreadou, I., additional, Nikolaou, M., additional, Katsibri, P., additional, Anastasiou-Nana, M., additional, Maceira Gonzalez, A. M., additional, Ripoll, C., additional, Cosin-Sales, J., additional, Igual, B., additional, Salazar, J., additional, Belloch, V., additional, Cosin-Aguilar, J., additional, Pennell, D. J., additional, Masaki, M., additional, Pulido, J. N., additional, Yuasa, T., additional, Gillespie, S., additional, Afessa, B., additional, Brown, D. R., additional, Mankad, S. V., additional, Oh, J. K., additional, Gurghean, A. L., additional, Mihailescu, A. M., additional, Tudor, I., additional, Homentcovschi, C., additional, Muraru, M., additional, Bruckner, I. V., additional, Correia, C. E., additional, Rodrigues, B., additional, Moreira, D., additional, Santos, L. F., additional, Gama, P., additional, Dionisio, O., additional, Cabral, C., additional, Santos, O., additional, Bombardini, T., additional, Gherardi, S., additional, Arpesella, G., additional, Valente, S., additional, Calamai, I., additional, Pasanisi, E., additional, Sansoni, S., additional, Szymanski, P., additional, Dobrowolski, P., additional, Lipczynska, M., additional, Klisiewicz, A., additional, Hoffman, P., additional, Stepowski, D., additional, Kurtz, B., additional, Grezis-Soulie, G., additional, Savoure, A., additional, Anselme, F., additional, Bauer, F., additional, Castillo, J., additional, Herszkowicz, N., additional, Ferreira, C., additional, Goscinska, A., additional, Mizia-Stec, K., additional, Poborski, W., additional, Azevedo, O., additional, Quelhas, I., additional, Guardado, J., additional, Fernandes, M., additional, Miranda, C. S., additional, Gaspar, P., additional, Lourenco, A., additional, Medeiros, R., additional, Almeida, J., additional, L Bennani, S., additional, Algalarrondo, V., additional, Dinanian, S., additional, Guiader, J., additional, Juin, C., additional, Adams, D., additional, Slama, M. S., additional, Onaindia, J. J., additional, Quintana, O., additional, Velasco, S., additional, Astigarraga, E., additional, Cacicedo, A., additional, Gonzalez, J., additional, Rodriguez, I., additional, Sadaba, M., additional, Eneriz, M., additional, Laraudogoitia Zaldumbide, E., additional, Nunez-Gil, I., additional, Luaces, M., additional, Zamorano, J., additional, Garcia Rubira, J. C., additional, Vivas, D., additional, Ibanez, B., additional, Marcos Alberca, P., additional, Fernandez Golfin, C., additional, Alonso, J., additional, Macaya, C., additional, Silva Marques, J., additional, Almeida, A. G., additional, Carvalho, V., additional, Jorge, C., additional, Silva, D., additional, Gato Varela, M., additional, Martins, S., additional, Brito, D., additional, Lopes, M. G., additional, Tripodi, E., additional, Miserrafiti, B., additional, Montemurro, V., additional, Scali, R., additional, Tripodi, P., additional, Winkler, A., additional, Madej, A., additional, Hausmanowa-Petrusewicz, I., additional, Fijalkowski, M., additional, Koprowski, A., additional, Jaguszewski, M., additional, Galaska, R., additional, Taszner, M., additional, Rynkiewicz, A., additional, Citro, R., additional, Rigo, F., additional, Provenza, G., additional, Ciampi, Q., additional, Patella, M. M., additional, D'andrea, A., additional, Vriz, O., additional, Astarita, C., additional, Bossone, E., additional, Heggemann, F., additional, Walter, T. H., additional, Kaelsch, T. H., additional, Sueselbeck, T., additional, Papavassiliu, T. H., additional, Borggrefe, M., additional, Haghi, D., additional, Monk-Hansen, T., additional, Have Dall, C., additional, Bisgaard Christensen, S., additional, Snoer, M., additional, Gustafsson, F., additional, Rasmusen, H., additional, Prescott, E., additional, Finocchiaro, G., additional, Pinamonti, B., additional, Merlo, M., additional, Barbati, G., additional, Di Lenarda, A., additional, Bussani, R., additional, Sinagra, G., additional, Butz, T., additional, Lang, C. N., additional, Meissner, A., additional, Plehn, G., additional, Yeni, H., additional, Langer, C., additional, Trappe, H. J., additional, Gu, X., additional, Gu, X. Y., additional, He, Y. H., additional, Li, Z. A., additional, Han, J. C., additional, Chen, J., additional, Gaudron, P., additional, Niemann, M., additional, Herrmann, S., additional, Hu, K., additional, Bijnens, B., additional, Hillenbrand, H., additional, Beer, M., additional, Ertl, G., additional, Weidemann, F., additional, Mazzone, A., additional, Mariani, M., additional, Foffa, I., additional, Vianello, A., additional, Del Ry, S., additional, Bevilacqua, S., additional, Andreassi, M. G., additional, Glauber, M., additional, Berti, S., additional, Grabowski, M., additional, Postula, M., additional, Dragulescu, A., additional, Van Arsdell, G., additional, Al-Radi, O., additional, Caldarone, C., additional, Mertens, L., additional, Lee, K. J., additional, Casula, R. P., additional, Yadav, H., additional, Cherian, A., additional, Hughes, A. D., additional, Vitarelli, A., additional, D'orazio, S., additional, Nguyen, B. L., additional, Iorio, G., additional, Battaglia, D., additional, Caranci, F., additional, Padella, V., additional, Capotosto, L., additional, Alessandroni, L., additional, Barilla, F., additional, Cardin, C., additional, Hascoet, S., additional, Saudron, M., additional, Caudron, G., additional, Arnaudis, B., additional, Acar, P., additional, Sun, M. M., additional, Shu, X. H., additional, Pan, C. Z., additional, Fang, X. Y., additional, Kong, D. H., additional, Fang, F., additional, Zhang, Q., additional, Chan, Y. S., additional, Xie, J. M., additional, Yip, W. K., additional, Lam, Y. Y., additional, Sanderson, J. E., additional, Yu, C. M., additional, Rosca, M., additional, O' Connor, K., additional, Romano, G., additional, Magne, J., additional, Calin, A., additional, Muraru, D., additional, Pierard, L., additional, Lancellotti, P., additional, Roushdy, A., additional, Elfiky, I., additional, El Shahid, G., additional, Elfiky, A., additional, El Sayed, M., additional, Wierzbowska-Drabik, K., additional, Chrzanowski, L., additional, Kapusta, A., additional, Plonska-Goscinak, E., additional, Krzeminska-Pakula, M., additional, Kurpesa, M., additional, Rechcinski, T., additional, Trzos, E., additional, Kasprzak, J. D., additional, Ersboll, M. K., additional, Valeur, N., additional, Mogensen, U. M., additional, Andersen, M., additional, Hassager, C., additional, Sogaard, P., additional, Kober, L. V., additional, Kloeckner, M., additional, Hayat, D., additional, Dussault, C., additional, Lellouche, N., additional, Elbaz, N., additional, Demopoulos, A., additional, Hatzigeorgiou, G., additional, Leontiades, E., additional, Motsi, A., additional, Karatasakis, G., additional, Athanassopoulos, G., additional, Zycinski, P., additional, Kasprzak, J., additional, Vazquez Alvarez, M. C., additional, Medrano Lopez, C., additional, Camino Lopez, M., additional, Granja, S., additional, Zunzunegui Martinez, J. L., additional, Maroto Alvaro, E., additional, Tsai, W.-C., additional, Chen, J.-Y., additional, Liu, Y.-W., additional, Lin, C.-C., additional, Tsai, L.-M., additional, Gomes, D. C., additional, Robalo Martins, S., additional, Gois, M. R., additional, Ribeiro, S., additional, Nunes Diogo, A., additional, Sengupta, P., additional, Di Bella, G., additional, Caracciolo, G., additional, Lentini, S., additional, Kinova, E., additional, Zlatareva, N., additional, Goudev, A., additional, Papagiannis, N., additional, Mpouki, M., additional, Papagianni, A., additional, Vorria, M., additional, Mpenetos, G., additional, Lytra, D., additional, Papadopoulou, E., additional, Sgourakis, P., additional, Malakos, J., additional, Kyriazis, J., additional, Kodali, V., additional, Toole, R., additional, Gopal, A. S., additional, Celutkiene, J., additional, Rudys, A., additional, Grabauskiene, V., additional, Glaveckaite, S., additional, Sadauskiene, E., additional, Lileikiene, Z., additional, Bickauskaite, N., additional, Ciburiene, E., additional, Skorniakov, V., additional, Laucevicius, A., additional, Attenhofer Jost, C. H., additional, Pfyffer, M., additional, Lindquist, R., additional, Santos, J. L. F., additional, Coelho, O. R. C., additional, Mady, C. M., additional, Picard, M. H. P., additional, Salemi, V. M. C., additional, Funk, L., additional, Prull, M. W., additional, Shih, J.-Y., additional, Huang, Y.-Y., additional, O'connor, K., additional, Moonen, M., additional, Pierard, L. A., additional, Cozma, D. C., additional, Mornos, C., additional, Ionac, A., additional, Petrescu, L., additional, Dragulescu, D., additional, Dan, R., additional, Popescu, I., additional, Dragulescu, S. I., additional, Von Lueder, T. G., additional, Hodt, A., additional, Gjerdalen, G. F., additional, Andersen, T. E., additional, Solberg, E. E., additional, Steine, K., additional, Van Mieghem, T., additional, Rostek, M., additional, Pikto-Pietkiewicz, W., additional, Dluzniewski, M., additional, Antoniewicz, A., additional, Poletajew, S., additional, Borowka, A., additional, Pasierski, T., additional, Malyutina, S. K., additional, Ryabikov, M., additional, Ragino, J., additional, Ryabikov, A., additional, Sitia, S., additional, Tomasoni, L., additional, Atzeni, F., additional, Gianturco, L., additional, Sarzi-Puttini, P., additional, De Gennaro Colonna, V., additional, Turiel, M., additional, Gutierrez, F. R., additional, Lefhtheriotis, G., additional, Hurst, R. T., additional, Nelson, M. R., additional, Mookadam, F., additional, Thota, V., additional, Emani, U., additional, Al Harthi, M., additional, Stepanek, J., additional, Cha, S., additional, Lester, S. J., additional, Ho, E. M. M., additional, Hemeryck, L., additional, Hall, M., additional, Scott, K., additional, Bennett, K., additional, Mahmud, A., additional, Daly, C., additional, King, G., additional, Murphy, R. T., additional, Brown, A. S., additional, Teske, A. J., additional, D'Hooge, J., additional, Claus, P., additional, Rademakers, F., additional, Santos, L., additional, Cortez-Dias, N., additional, Goncalves, S., additional, Almeida Ribeiro, M., additional, Bordalo E Sa, A., additional, Magnino, C., additional, Marcos-Alberca, P., additional, Milan, A., additional, Almeria, C., additional, Caniadas, V., additional, Rodrigo, J. L., additional, Perez De Isla, L., additional, Zamorano, J. L., additional, Gustafsson, U., additional, Larsson, M., additional, Lindqvist, P., additional, Brodin, L., additional, Waldenstrom, A., additional, Roosens, B., additional, Hernot, S., additional, Droogmans, S., additional, Van Camp, G., additional, Lahoutte, T., additional, Cosyns, B., additional, Rao, C. M., additional, Aguglia, D., additional, Casciola, G., additional, Imbesi, C., additional, Marvelli, A., additional, Sgro, M., additional, Benedetto, D., additional, Tripepi, R., additional, Zoccali, C., additional, Benedetto, F. A., additional, Badano, L. P., additional, Cardillo, M., additional, Del Mestre, L., additional, Gianfagna, P., additional, Proclemer, A., additional, Tschernich, H. D., additional, Mora, B., additional, Base, E., additional, Weber, U., additional, Dumfarth, J., additional, Mukherjee, C., additional, Skaltsiotis, H. S., additional, Kaladaridis, A. K., additional, Bramos, D. B., additional, Kottis, G. K., additional, Antoniou, A. A., additional, Agrios, I. A., additional, Takos, D. T., additional, Vasiladiotis, N. V., additional, Pamboucas, K. P., additional, Toumanidis, S. T. T., additional, Shim, A., additional, Lipec, P., additional, Michalski, B., additional, Wozniakowski, B., additional, Stefanczyk, L., additional, Rotkiewicz, A., additional, Cameli, M., additional, Lisi, M., additional, Padeletti, M., additional, Bigio, E., additional, Bernazzali, S., additional, Tsoulpas, C., additional, Maccherini, M., additional, Henein, M., additional, Mondillo, S., additional, Garcia Lunar, I., additional, Mingo Santos, S., additional, Monivas Palomero, V., additional, Mitroi, C., additional, Beltran Correas, P., additional, Ruiz Bautista, L., additional, Muniz Lozano, A., additional, Gonzalez Gonzalez, M., additional, Pabari, P. A., additional, Stegemann, B., additional, Willson, K., additional, Zeppellini, R., additional, Iavernaro, A., additional, Zadro, M., additional, Carasi, M., additional, De Domenico, R., additional, Rigo, T., additional, Artuso, E., additional, Erente, G., additional, Ramondo, A., additional, Le, T. T., additional, Huang, F. Q., additional, Gu, Y., additional, and Tan, R. S., additional
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- 2010
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15. 391 An intravascular ultrasound study in morphologic lesion characteristics of chronic total occlusions of left descending coronary artery after PTCA
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NIKLEWSKI, T, primary, GASIOR, M, additional, GIERLOTKA, M, additional, POLONSKI, L, additional, LEKSTON, A, additional, and WILCZEK, K, additional
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- 2006
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16. 893 Long-term analysis of hemodynamic function and left ventricular mass regression after implantation of small-size mechanical valve prostheses in aortic position. Comparative evaluation of On-X valves
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NIKLEWSKI, T, primary, ZEMBALA, M, additional, KUKULSKI, T, additional, FOREMNY, J, additional, PUSZCZEWICZ, D, additional, DZIOBEK, B, additional, and POLONSKI, L, additional
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- 2003
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17. Randomized, placebo-controlled study for immunosuppressive treatment of inflammatory dilated cardiomyopathy: two-year follow-up results.
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Wojnicz, R, Nowalany-Kozielska, E, Wojciechowska, C, Glanowska, G, Wilczewski, P, Niklewski, T, Zembala, M, Polonski, L, Rozek, M M, and Wodniecki, J
- Published
- 2001
18. The Crystal Conformation of 4,4,7,7-Tetramethylcyclononanone at -156 degrees C.
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Groth, P., primary, Niklewski, T., additional, Nygren, M., additional, Pohjonen, Marja-Liisa, additional, and Koskikallio, Jouko, additional
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- 1976
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19. On the Crystal Structures of cis- and trans-Bis(ethylenediamine)dinitrocobalt(III) Nitrate.
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Börtin, Olle, primary, Niklewski, T., additional, Nygren, M., additional, Pohjonen, Marja-Liisa, additional, and Koskikallio, Jouko, additional
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- 1976
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20. ChemInform Abstract: MAGNETIC, ELECTRICAL AND THERMAL STUDIES OF VANADIUM TITANIUM OXIDE (V1-XTIXO2) (O ≤ X ≤ 0.06)
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HOERLIN, T., primary, NIKLEWSKI, T., additional, and NYGREN, M., additional
- Published
- 1977
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21. Structural Studies on the Rare Earth Carboxylates. 25. The Crystal Structure of Trisodium Tris(oxydiacetato)cerate(III) Nonahydrate.
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Elding, Inga, primary, Niklewski, T., additional, Nygren, M., additional, Pohjonen, Marja-Liisa, additional, and Koskikallio, Jouko, additional
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- 1976
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22. Accurate X-ray determination of the lattice parameters and the thermal expansion coefficients of VO2near the transition temperature
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Kucharczyk, D., primary and Niklewski, T., additional
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- 1979
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23. The Crystal Structure of Rubidium and Potassium Dibutyldithiocarbamates.
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Wahlberg, Anders, primary, Niklewski, T., additional, Nygren, M., additional, Pohjonen, Marja-Liisa, additional, and Koskikallio, Jouko, additional
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- 1976
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- View/download PDF
24. Magnetic, Electrical and Thermal Studies of V(1-x)Ti(x)O2 (0 <= x <= 0.06).
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Hörlin, T., primary, Niklewski, T., additional, Nygren, M., additional, Pohjonen, Marja-Liisa, additional, and Koskikallio, Jouko, additional
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- 1976
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25. Structures of Linear Multisulfur Systems. XI. The Crystal and Molecular Structure of 2-(5-Phenyl-1,2-dithiole-3-ylidene)-6-(5-t-butyl-1,2-dithiole-3-ylidene)-cyclohexanethione, C22H22S5.
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Sletten, Jorunn, primary, Niklewski, T., additional, Nygren, M., additional, Pohjonen, Marja-Liisa, additional, and Koskikallio, Jouko, additional
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- 1976
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26. Lattice-parameter studies on V0.977Mo0.023O2the vicinity of the semiconductor-to-metal transition
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Kucharczyk, D., primary and Niklewski, T., additional
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- 1981
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27. VANADIUM-VANADIUM BONDS IN THE Ti1-xVxO2 SYSTEM
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HÖRLIN, T., primary, NIKLEWSKI, T., additional, and NYGREN, M., additional
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- 1976
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28. The Solvus Curve for Guinier–Preston Zones in Al–Zn Alloys: A Diffuse X-Ray Study
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Niklewski, T., Spiegelberg, P., and Sunbulli, K.
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A diffuse X-ray scattering study has been carried out on two aluminium–zinc alloys, one containing 15 wt.-% zinc and the other 25 wt.-%. Both were examined after water-quenching and ageing for different times at different temperatures. The results support a proposal made by Lasek (Physica Status Solidi, 1964, 5, K117) regarding the solvus curve for Guinier–Preston zones in aluminium–zinc alloys. The curve by Borelius (J. Metals, 1951, 3, 477) appears to be a lower limit for the transformation (after prolonged ageing) of completely coherent Guinier–Preston zones to partially coherent zones.
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- 1976
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29. Gallium-67 scintigraphy as a valuable test in qualifying patients with clinically suspected myocarditis for myocardial biopsy
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Wojnicz, R, Nowalany-Kozielska, E, Szewczyk, M, Szczurek-Katański, K, Walichiewicz, P, Niklewski, T, Poloński, L, and Wodniecki, J
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- 1999
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30. Zero-contrast TAVI: Novel alternative for challenging patient population.
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Pyka Ł, Wilczek K, Kwiecień A, Niklewski T, Hrapkowicz T, and Gąsior M
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- Humans, Male, Aged, Aged, 80 and over, Female, Transcatheter Aortic Valve Replacement, Aortic Valve Stenosis surgery
- Published
- 2024
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31. Sacubitril/valsartan for cardioprotection in breast cancer (MAINSTREAM): design and rationale of the randomized trial.
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Tajstra M, Dyrbuś M, Rutkowski T, Składowski K, Sosnowska-Pasiarska B, Góźdź S, Radecka B, Staszewski M, Majsnerowska A, Myrda K, Nowowiejska-Wiewióra A, Skoczylas I, Rymkiewicz I, Niklewski T, Nowak J, Przybyłowski P, Gąsior M, and Jarząb M
- Subjects
- Humans, Female, Double-Blind Method, Angiotensin Receptor Antagonists therapeutic use, Cardiotoxicity prevention & control, Cardiotoxicity etiology, Heart Failure drug therapy, Heart Failure physiopathology, Adult, Middle Aged, Stroke Volume physiology, Stroke Volume drug effects, Randomized Controlled Trials as Topic, Aminobutyrates therapeutic use, Aminobutyrates administration & dosage, Biphenyl Compounds, Valsartan, Drug Combinations, Breast Neoplasms drug therapy, Tetrazoles therapeutic use, Tetrazoles administration & dosage
- Abstract
Aims: In recent years, survival in patients with breast cancer has increased. Despite the improvement in outcomes of those patients, the risk of treatment-related cardiotoxicity remains high, and its presence has been associated with a higher risk of treatment termination and thus lower therapeutic efficacy. Prior trials demonstrated that a preventive initiation of heart failure drugs, including the renin-angiotensin-aldosterone inhibitors, might reduce the risk of treatment-related cardiotoxicity. However, to date, no study investigated the efficacy of sacubitril/valsartan, a novel antineurohormonal drug shown to be superior to the previous therapies, in the prevention of cardiotoxicity in patients with early-stage breast cancer, which is the aim of the trial., Methods and Results: MAINSTREAM is a randomized, placebo-controlled, double-blind, multicentre, clinical trial. After the run-in period, a total of 480 patients with early breast cancer undergoing treatment with anthracyclines and/or anti-human epidermal growth factor receptor 2 drugs will be randomized to the highest tolerated dose of sacubitril/valsartan, being preferably 97/103 mg twice daily or placebo in 1:1 ratio. The patients will be monitored, including routine transthoracic echocardiography (TTE) and laboratory biomarker monitoring, for 24 months. The primary endpoint of the trial will be the occurrence of a decrease in left ventricular ejection fraction by ≥5% in TTE within 24 months. The key secondary endpoints will be the composite endpoint of death from any cause or hospitalization for heart failure, as well as other imaging, laboratory, and clinical outcomes, including the occurrence of the cancer therapy-related cardiac dysfunction resulting in the necessity to initiate treatment. The first patients are expected to be recruited in the coming months, and the estimated completion of the study and publication of the results are expected in December 2027, pending recruitment., Conclusions: The MAINSTREAM trial will determine the efficacy and safety of treatment with sacubitril/valsartan as a prevention of cardiotoxicity in patients with early breast cancer (ClinicalTrials.gov number: NCT05465031)., (© 2023 The Authors. ESC Heart Failure published by John Wiley & Sons Ltd on behalf of European Society of Cardiology.)
- Published
- 2023
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32. Comparison of the results of transcatheter aortic valve implantation in patients with bicuspid and tricuspid aortic valve.
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Chodór PA, Wilczek K, Chodór-Rozwadowska K, Przybylski R, Głowacki J, Niklewski T, Włoch Ł, Gąsior M, Zembala M, and Kalarus Z
- Abstract
Introduction: Indications for transcatheter aortic valve implantation (TAVI) are constantly expanding, including younger patients. Bicuspid aortic valves (BAV) often occur in this group. In order to achieve optimal treatment results in younger patients, it is necessary to develop an effective method for selecting the size of implanted valves., Aim: To compare the results of TAVI with use of a self-expanding prosthesis in patients with a BAV and a tricuspid aortic valve (TAV) with valve selection based on annular sizing., Material and Methods: The diagnosis of BAV and TAV and measurements (annular sizing) were based on multi-slice computed tomography scans. Eighty-three patients received a self-expanding CoreValve or Evolut R prosthesis. In group I (BAV) there were 21 (25.3%) patients and in group II (TAV) there were 62 (74.7%) patients., Results: The groups did not differ in terms of baseline clinical characteristics. Device success was achieved in 16 (76.2%) and 55 (88.7%) ( p = NS) in group I and II respectively. Composite endpoints: early safety occurred in 5 (23.8%) and 11 (17.7%) patients ( p =NS) in group I and II respectively; clinical efficacy occurred in 10 (47.6%) and 28 (45.2%) patients ( p = NS) in group I and II respectively. 30-day mortality was 4.8% vs 9.7%, 1-year mortality was 28.6% vs 17.7% ( p = NS) in group I and II respectively., Conclusions: TAVI in patients with severe aortic stenosis and BAV is as effective as in patients with TAV using self-expanding prostheses if the valve selection is based on annular sizing., Competing Interests: The authors declare no conflict of interest., (Copyright: © 2021 Termedia Sp. z o. o.)
- Published
- 2021
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33. Simplified, less-invasive left ventricular assist device implantation in patients with post-coronary artery bypass grafting.
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Zembala MO, Antonczyk R, Niklewski T, Waszak J, Pacholewicz J, Copik I, and Zembala M
- Subjects
- Aorta, Thoracic surgery, Coronary Artery Disease complications, Heart Failure complications, Heart Ventricles, Humans, Coronary Artery Bypass, Coronary Artery Disease surgery, Heart Failure surgery, Heart-Assist Devices, Minimally Invasive Surgical Procedures methods, Thoracotomy methods
- Abstract
Less-invasive left ventricular assist device implantation is becoming the technique of choice for implementation of new-generation heart pumps. The less-invasive technique is particularly useful for patients with a history of cardiac surgical procedures, such as coronary artery bypass grafting. Yet, in redo cases, severe pericardial adhesions may force experienced operators to opt for alternative outflow graft placement, such as in the descending aorta. We propose a surgical technique in which the left ventricular device is implanted through a limited thoracic incision, with the outflow graft anastomosed to the ascending aorta, avoiding collision with coronary bypass grafts. The key element of the proposed technique is a tunnel connecting 2 pleural cavities, in which the outflow graft is placed, entirely bypassing the pericardium., (© The Author(s) 2018. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.)
- Published
- 2019
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34. Impact of coronary artery disease on outcomes of severe aortic stenosis treatment with transcatheter aortic valve implantation.
- Author
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Chodór P, Wilczek K, Włoch Ł, Przybylski R, Głowacki J, Kukulski T, Niklewski T, Zembala M, Gąsior M, and Kalarus Z
- Abstract
Introduction: The presence of coronary artery disease (CAD) in patients who underwent transcatheter aortic valve implantation (TAVI) may increase in-hospital and long-term mortality., Aim: To evaluate the impact of CAD in patients who underwent TAVI., Material and Methods: The study group consisted of the first 142 patients treated with TAVI between 26 November 2008 and 31 December 2015. The patients were divided into two groups: group I comprised 103 (72.5%) patients with CAD, and group II comprised 39 (27.5%) patients without CAD., Results: Group I was characterized by a significantly higher risk according to EuroSCORE - 11.2 ±2.5 vs. 9 ±2.3 in group II ( p < 0.001) and Logistic EuroSCORE - 25.4 ±13.4 vs. 16.3 ±8.7 ( p < 0.001). 30-day mortality was 8 (7.8%) vs. 2 (5.1%) ( p = NS) and 1-year mortality was 22 (21.4%) vs. 6 (15.4%) ( p = NS) in group I and II respectively. The composite endpoint evaluating the efficacy of TAVI was achieved in 82 (79.6%) vs. 31 (79.5%) ( p = NS) in group I and II respectively. The composite endpoint, which involved 30-day observation, occurred in 39 (37.86%) vs. 12 (30.77%) ( p = NS) and the composite endpoint, which involved 1-year evaluation of the clinical efficacy of TAVI, occurred in 48 (57.8%) vs. 13 (48.1%) ( p = NS) in patients with and without CAD respectively., Conclusions: The short- and mid-term outcomes of TAVI patients with CAD, despite higher risk profile, did not differ from the outcomes of treatment in patients without CAD., Competing Interests: The authors declare no conflict of interest.
- Published
- 2019
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35. Evaluation of the Graft Mechanical Function Using Speckle-Tracking Echocardiography During the First Year After Orthotropic Heart Transplantation.
- Author
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Antończyk K, Niklewski T, Antończyk R, Zakliczyński M, Zembala M, and Kukulski T
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Postoperative Period, Prospective Studies, Echocardiography methods, Graft Rejection diagnostic imaging, Heart diagnostic imaging, Heart Transplantation
- Abstract
BACKGROUND Recent advances in ultrasound strain imaging facilitate more precise monitoring of subtle myocardial changes and thus may allow for more appropriate assessment of myocardium after orthotopic heart transplantation (OHT). This study aimed to explore longitudinal left ventricular (LV) and right ventricular (RV) function by speckle-tracking echocardiography (STE) during a 12-month follow-up period in relation to acute cellular rejection (ACR) degree ≥2R and the response to intense immunosuppressive therapy with intravenous steroids. MATERIAL AND METHODS Forty-five adult heart transplant recipients were prospectively assessed at a single center from January 2016 until June 2017. Echocardiography was performed serially at baseline and together with routine biopsies at 2 weeks and 1, 2, 3, 6, 9, and 12 months after OHT. Changes in graft function were evaluated using STE before and during ACR and in the resolving period of ACR. RESULTS A total of 220 pairs of biopsy specimens and strain recordings were analyzed. Moderate ACR was seen in 30 biopsies (13.6%). In the serial assessment, longitudinal strain parameters of the LV (global and 4-, 2-, 3-chamber longitudinal strain) and RV (global and free wall longitudinal strain) were decreased at baseline and improved significantly (P<0.001) within 12 months after OHT. The degree of improvement was not influenced by ACR. There were no significant differences in circumferential, radial, or longitudinal strain rate, or mechanical dyssynchrony. Reduced LV and RV longitudinal strain was related to ACR degree 2R and increased significantly (P<0.0005) during 3 days of intravenous methylprednisolone therapy. CONCLUSIONS Using the STE technique, we have documented an acute improvement in mechanical myocardial function following ACR steroid therapy and a progressive recovery of LV and RV longitudinal function during the first year after OHT.
- Published
- 2018
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36. The use of intraoperative epiaortic ultrasonography in monitoring patients over 75 years old treated with aortic valve replacement.
- Author
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Niklewski T, Zembala M, Puszczewicz D, Nadziakiewicz P, Karolak W, and Zembala M
- Abstract
Introduction: Epiaortic ultrasound scanning (EAS) extended the use of ultrasound to the intraoperative diagnosis of aortic pathology. Surgical palpation of the ascending aorta underestimates the presence and severity of atherosclerotic plaques. Epiaortic ultrasound scanning has been used as an adjunct to transesophageal echocardiography (TEE) or as a primary direct diagnostic tool for imaging the ascending aorta as well as the aortic arch, which gained prominence as part of a multipronged intraoperative strategy to reduce atherosclerotic emboli., Aim: To compare the epiaortic examination with transthoracic and transesophageal echo (transthoracic echocardiography (TTE) and TEE), X-ray, surgical intraoperative palpation, and postoperative neurological status., Material and Methods: The analyzed group consisted of 35 patients (mean age: 81.3 years) treated with aortic valve replacement (AVR), either alone (60%) or combined with coronary artery bypass grafting (CABG; 22.8%) or aortic aneurysm replacement (11.42%). In 2 patients, only CABG was performed because intraoperatively reevaluated strategy. Thierteen patients have got a history of diabetes, 10 chronic renal failure and 3 of cerebral stroke., Results: In more than 80% of patients, positive EAS results had an influence on the choice of aortic clamping site and in 50% of patients on the site of cannulation. Female sex, peripheral vascular disease, history of previous stroke, and calcifications in the ascending aorta in TTE have significant predictive value for recognizing atherosclerotic changes in EAS and the risk of postoperative neurological complications in octogenarians treated with AVR., Conclusions: Epiaortic ultrasound scanning imaging is superior to TTE and manual palpation in the detection and localization of ascending atherosclerosis. This technique should be introduced as a standard perioperative examination in older patients at risk of neurological complications., Competing Interests: The authors report no conflict of interest.
- Published
- 2017
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37. Staged hybrid ablation for persistent and longstanding persistent atrial fibrillation effectively restores sinus rhythm in long-term observation.
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Zembala M, Filipiak K, Kowalski O, Buchta P, Niklewski T, Nadziakiewicz P, Koba R, Gąsior M, Kalarus Z, and Zembala M
- Abstract
Introduction: Hybrid ablation (HABL) of atrial fibrillation combining endoscopic, minimally invasive, closed chest epicardial ablation with endocardial CARTO-guided accuracy was introduced to overcome the limitations of current therapeutic options for patients with persistent (PSAF) and longstanding persistent atrial fibrillation (LSPAF). The purpose of this study was to evaluate the procedural safety and feasibility as well as effectiveness of HABL in patients with PSAF and LSPAF 1 year after the procedure., Material and Methods: The study is a single-center, prospective clinical registry. From 07/2009 to 12.2014, 90 patients with PSAF ( n = 39) and LSPAF ( n = 51), at the mean age of 54.8 ±9.8, in mean EHRA class 2.6, underwent HABL. 64.4% of patients had a history of prior cardioversion or catheter ablation. Thirteen patients had LVEF less than 35%. Mean AF duration was 4.5 ±3.7 years. Patients were scheduled for 3-, 6- and 12-month follow-up with 7-day Holter monitoring., Results: At 6 months after the procedure 78% (54/69) of patients were in SR. At 12 months after the procedure 86% (59/69) were in SR and 62.3% (43/69) in SR and off class I/III antiarrhythmic drugs (AADs). Only 1% (1/69) of patients required a repeat ablation for atrial flutter. A significant decrease in LA dimension and an increase in LVEF were noted., Conclusions: A combination of epicardial and endocardial RF ablation should be considered as a treatment option for patients with persistent and long-standing persistent atrial fibrillation as it is safe and effective in restoring sinus rhythm., Competing Interests: Michal Zembala MD PhD served as a consultant (proctor) for nContact Inc. from January 2012 until January 2013. Other authors report no conflicts of interests. No corporate funding supported the study. The Reveal XT implantable loop monitors were purchased from funds received from the Polish Society of Cardiology/Servier Prize for the Best Research Proposal in 2011.
- Published
- 2017
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38. Impact of CoreValve size selection based on multi-slice computed tomography on paravalvular leak after transcatheter aortic valve implantation.
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Chodór P, Wilczek K, Przybylski R, Głowacki J, Kukulski T, Streb W, Niklewski T, Honisz G, Trzeciak P, Podolecki T, Włoch Ł, Zembala M, and Kalarus Z
- Subjects
- Aged, Aged, 80 and over, Aortic Valve diagnostic imaging, Aortic Valve physiopathology, Aortic Valve Insufficiency diagnostic imaging, Aortic Valve Insufficiency etiology, Aortic Valve Insufficiency physiopathology, Aortic Valve Stenosis diagnostic imaging, Aortic Valve Stenosis physiopathology, Aortography, Clinical Decision-Making, Echocardiography, Transesophageal, Female, Humans, Male, Predictive Value of Tests, Prosthesis Design, Retrospective Studies, Risk Factors, Time Factors, Transcatheter Aortic Valve Replacement adverse effects, Treatment Outcome, Aortic Valve surgery, Aortic Valve Insufficiency prevention & control, Aortic Valve Stenosis surgery, Heart Valve Prosthesis, Multidetector Computed Tomography, Transcatheter Aortic Valve Replacement instrumentation
- Abstract
Background: Paravalvular leak (PVL) has significant impact on long-term outcomes in patients after transcatheter aortic valve implantation (TAVI). This study sought to determine whether multi-slice computed tomography (MSCT)-guided valve selection reduces PVL after CoreValve implantation., Methods: The analysis encompassed 69 patients implanted with CoreValve and were divided into two groups. In Group I (30 patients), valve selection was based on standard procedures, in Group II (39 patients), on MSCT measurements. Paravalvular leak was assessed with angiography and echocardiography., Results: Multi-slice computed tomography results influenced a change of decision as to the size of the implanted valve in 12 (30.9%) patients in Group II and would have caused the decision to change in 9 (37.5%) patients in Group I. The degree of oversizing in Group I and II was 12.8% ± ± 7.6% vs. 18.6% ± 5.1% (p = 0.0006), respectively. The oversizing among the patients with leak degree of 0-1 and ≥ 2 was 18.1% ± 6.0% and 12.8% ± 7.4% (p = 0.0036). Angiographic assessment indicated post-procedural PVL ≥ 2 in 50% of patients in Group I and 20.5% in Group II (p = 0.01), while echocardiographic assessment indicated the same in 73.3% of patients in Group I and 45.6% in Group II (p = 0.0136). The composite endpoint occurred in 26.6% (8/30) patients in Group I vs. 5.1% (2/39) patients in Group II (p = 0.0118)., Conclusions: Selecting the CoreValve device based on MSCT resulted in smaller rates of PVL and less frequent composite endpoint. In 1/3 of patients MSCT led to a change of the valve size. The degree of oversizing had a significant impact on PVL.
- Published
- 2017
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39. Preoperative Echocardiography Examination of Right Ventricle Function in Patients Scheduled for LVAD Implantation Correlates with Postoperative Hemodynamic Examinations.
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Nadziakiewicz P, Niklewski T, Szyguła-Jurkiewicz B, Pacholewicz J, Zakliczyński M, Borkowski J, Hrapkowicz T, and Zembala M
- Subjects
- Adult, Cohort Studies, Echocardiography, Heart Failure physiopathology, Hemodynamics, Humans, Male, Middle Aged, Postoperative Period, Predictive Value of Tests, Preoperative Care, Retrospective Studies, Treatment Outcome, Heart Failure diagnostic imaging, Heart Failure surgery, Heart-Assist Devices, Ventricular Function, Right
- Abstract
BACKGROUND Left ventricular assist devices (LVAD) are used to treat heart failure. Preoperative prediction of RV function after LVAD implantation is crucial. Correlations were found between preoperative echo and RV function after LVAD implantation. MATERIAL AND METHODS We retrospectively reviewed 23 male patients (8 ischemic, 15 nonischemic cardiomyopathy) with LVAD implantation (17 HeartWare, 6 HeartMate II) at the Silesian Center for Heart Diseases from 1 January 2013 to 28 October 2014. Preoperative TTE data of RV function included RVFAC (fractional area change), TAPSE (tricuspid annulus plane systolic excursion), RV diameter (RV4), and RV/LV (right/left ventricle) ratio. Postoperative hemodynamic mean pulmonary pressure (mPAP), central venous pressure (CVP), cardiac output (CO), and cardiac index (CI) were measured and recorded every 2 h up to 10 days (1, 2, …120) and correlated. Study endpoints were mortality, discharge from ICU, and RV dysfunction. RESULTS There were no RV dysfunctions. Correlations of CO and CI with RV4 and RV/LV ratio were significantly positive at many time points, with TAPSE and FAC positive or negative. Correlations mPAP with RV4 were significantly positive: 1, 2, 3, 7, 8, 57, 58, 59. With RV/LV ratio positive: 44, 47, with TAPSE in 36. With FAC positive 11, 13-15, 22 and negative 57. Correlations CVP with RV4 were negative, with positive significance in 1, 52. With RV/LV ratio positively 52, 54, 56 and negative 71, 72, 73. With TAPSE were negative significantly: 30, 68. With FAC positive 11, 12, 13, 14 and negative: 68. CONCLUSIONS RV4 and RV/LV ratio before LVAD implantation are more predictive for postoperative RV function than RVFAC and TAPSE, probably because RVFAC and TAPSE are load-dependent.
- Published
- 2016
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40. Symetis Acurate Neo transfemoral aortic bioprosthesis - initial Polish experience.
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Zembala M, Hawranek M, Wacławski J, Niklewski T, Nadziakiewicz P, Koba R, Przybylski R, Walas R, Głowacki J, Jazwiec T, Garbacz M, Gąsior M, and Zembala M
- Subjects
- Aged, Aged, 80 and over, Aortic Valve surgery, Female, Humans, Male, Poland, Treatment Outcome, Aortic Valve Stenosis surgery, Bioprosthesis, Heart Valve Prosthesis
- Abstract
Background and Aim: Transcatheter aortic valve implantation (TAVI) has proven to be a valuable alternative to conventional surgical aortic valve replacement in high-risk and surgically inoperable patients who suffer from severe symptomatic aortic stenosis. With the second generation of TAVI devices improvements in both handling and performance are highly demanded. This brief clinical communication reports the first Polish experience with the second generation of transfemoral TAVI device--Symetis Acurate Neo., Methods: From November 19th 2014 until February 18th 2015 nine (n = 9) patients with severe symptomatic aortic stenosis have been operated on using the Symetis Acurate Neo. Patients were subject to seven-day evaluation and 30-day phone follow-up., Results: The procedure was safely and successfully performed in all patients. A SMALL (S) valve (21-23 mm equivalent) was used in two patients, MEDIUM valve (M; 23-25 mm equivalent) in five patients, and a LARGE valve (L; 25-26 mm equivalent) in two patients. In three cases post-release balloon dilatation was required. There were no intraoperative complications and no major adverse events (as per VARC classification) during initial hospitalisation, including conduction or rhythm disturbances. In all cases, the mean gradient on the prosthetic valves was 7.8 mm Hg (10.2 mm Hg on the "S" valves). Rapid improvement in patients' functional class was noted. Perivalvular leak was evaluated as "mild" in three cases, "trace" in one, and "not existing" in five., Conclusions: This initial experience with the Symetis Acurate Neo demonstrates its good safety profile and excellent haemodynamics. Low radial stress of the valve results in minimal incidence of atrioventricular rhythm disturbances, and a sealing crown for nearly non-existent paravalvular leak.
- Published
- 2016
- Full Text
- View/download PDF
41. Intra-aortic balloon clamp for safe resternotomy in a patient with a giant aneurysm of sinuses of Valsalva.
- Author
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Zembala MO, Filipiak K, Niklewski T, and Przybylski R
- Subjects
- Female, Humans, Middle Aged, Balloon Occlusion instrumentation, Balloon Occlusion methods, Cardiopulmonary Bypass instrumentation, Cardiopulmonary Bypass methods, Heart Aneurysm surgery, Reoperation instrumentation, Reoperation methods, Sinus of Valsalva surgery, Sternotomy instrumentation, Sternotomy methods
- Abstract
Despite advances in surgical techniques and postoperative medical management, the mortality rates for cardiac reoperations remain high. The risk is most commonly associated with failed resternotomy complicated by fatal injury to the myocardium or its structures. This short case report documents the first use of an endoluminal balloon occlusive device in order to prevent aneurysmal sack damage and coronary vessel injury in a patient with a giant aortic aneurysm after failed aortic surgery. The safe aortic occlusion allowed for closed-chest cardioplegia delivery and subsequent aortic unloading, thus facilitating a difficult but uneventful resternotomy., (© The Author 2014. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
42. The use of a new hybrid stentgraft for the repair of extensive thoracic aortic aneurysms with the frozen elephant trunk method - first Polish experiences.
- Author
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Zembala M, Krasoń M, Hrapkowicz T, Przybylski R, Filipiak K, Borowicz M, Niklewski T, Głowacki J, Wolny T, Nadziakiewicz P, Walas R, and Zembala M
- Abstract
The frozen elephant trunk (FET) technique is a modification of the traditional elephant trunk method, which was introduced by Borst in 1983 in order to treat extensive thoracic aortic aneurysms. The crux of the new method is the different type of aortic prosthesis, consisting of a Dacron part (with or without branches leading to the arterial vessels which exit the aortic arch) and a port for extracorporeal circulation with a self-expanding nitinol stentgraft. This combination enables a complete one-stage treatment of the pathologies within the arch and the proximal segment of the descending aorta; moreover, it facilitates the performance of a two-stage hybrid treatment of extensive thoracic aortic aneurysms involving a significant part of the descending aorta. This article presents the cases of four patients with extensive aortic disease, who were implanted with Thoraflex prostheses (Vascutek, Scotland).
- Published
- 2014
- Full Text
- View/download PDF
43. Symetis Acurate Transapical Aortic Valve: the initial experience with a second generation of transcatheter aortic valve replacement device.
- Author
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Zembala MO, Piegza J, Wacławski J, Hawranek M, Hilker M, Niklewski T, Głowacki J, Parys M, Nadziakiewicz P, Chodór P, Wilczek K, Przybylski R, Gąsior M, and Zembala M
- Subjects
- Adult, Aged, Aged, 80 and over, Animals, Female, Humans, Male, Middle Aged, Poland, Swine, Aortic Valve surgery, Aortic Valve Stenosis surgery, Bioprosthesis, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation instrumentation, Heart Valve Prosthesis Implantation methods
- Abstract
Background: Transcatheter aortic valve replacement (TAVR) has proven to be a valuable alternative to conventional surgical aortic valve replacement in high risk and surgically in operable patients who suffer from severe symptomatic aortic stenosis. However, a significant number of complications, associated with both the learning curve and device specificity, have required attention and subsequent improvement. The Symetis transapical TAVR system is a self-positioning bioprosthesis composed of a non-coronary leaflet of surgical quality porcine tissue valve sewn into a self-expanding nitinol stent that iscovered with a PET-skirt., Methods: From June to September 2013 six patients have been operated on severe aortic stenosis using the new TAVR device. All patients have undergone critical assessment of a local Heart Team and have been disqualified from conventional AVR. Five were woman. Mean age was 82.3 ± 2.0 (mean LogEuroScore 23.9 ± 14.3). Four patients suffered from coronary artery disease - two had history of previous percutaneous coronary intervention with intracoronary stents, while the next two had history of coronary artery bypass grafting. Diabetes was frequent (n = 3) as well as chronic obstructive pulmonary disease (n = 4). Carotid artery disease was encountered in three patients similarly to atrial fibrillation. Mean left ventricular ejection fraction (LVEF) was 51.5 ± 11.8%, but one patient had suffered from low-flow-low-gradient aortic stenosis with LVEF of 29%., Results: The procedure was carried out successfully in all six cases. Two patients have received the valve sized L, three - M and one - S. Mean procedure time was 180 ± 19 min, mean cine 7.2 ± 1.2 min. Mean X-ray dose 930 ± 439 mGy, while mean volume of contrast given was 135 ± 61 mL. In all patients but one perivalvular leak (PVL) was not present. One patient had trace of PVL. Also, good LVEF was noted in all patients. Similar findings were obtained 30 days post procedure. No strokes, transient ischaemic attack or other cerebrovascular incidents were observed., Conclusions: This brief clinical communication reports the first Polish experience with the second generation of TAVR device - the Symetis Acurate Transapical Aortic Valve. While it lacks large patient population and longer follow-up, it reveals that TAVR procedure can be performed safely, with minimal X-ray exposure time and contrast given and successfully - with almost nonexistent PVL and no cerebrovascular incidents or heart rhythm disturbances. Heart Team approach is vital, and transapical access should not be treated inferiorly, but rather as an equally appealing TAVR option.
- Published
- 2014
- Full Text
- View/download PDF
44. Minimally invasive hybrid ablation procedure for the treatment of persistent atrial fibrillation: one year results.
- Author
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Zembala M, Filipiak K, Kowalski O, Boidol J, Sokal A, Lenarczyk R, Niklewski T, Garbacz M, Nadziakiewicz P, Kalarus Z, and Zembala M
- Subjects
- Atrial Fibrillation complications, Atrial Fibrillation diagnosis, Cardiac Tamponade diagnosis, Cardiac Tamponade etiology, Cardiac Tamponade surgery, Catheter Ablation methods, Echocardiography, Electrocardiography, Ambulatory, Esophageal Perforation diagnosis, Esophageal Perforation etiology, Female, Follow-Up Studies, Hemorrhage etiology, Humans, Lacerations etiology, Lacerations surgery, Male, Middle Aged, Postoperative Care, Prospective Studies, Treatment Outcome, Vena Cava, Inferior injuries, Atrial Fibrillation surgery, Catheter Ablation adverse effects, Minimally Invasive Surgical Procedures adverse effects, Minimally Invasive Surgical Procedures methods
- Abstract
Background: The concept of a hybrid approach, combining the most effective techniques of surgical and endocardial catheter ablation has resulted in the creation of the convergent ablation procedure. This novel, pericardioscopic, hybrid approach can be an effective option for highly symptomatic patients with persistent atrial fibrillation (PSAF) and longstanding persistent atrial fibrillation (LSPAF) for whom standalone surgical or endocardial ablation procedures offer sometimes unsatisfactory outcomes., Aim: To assess the safety, efficacy and effectiveness of a hybrid epicardial and endocardial radiofrequency ablation for the treatment of PSAF and LSPAF., Methods: Single-centre, prospective, non-randomised clinical study. Between August 2009 and December 2011, 27 patients with PSAF (n = 5) and LSPAF (n = 22) underwent hybrid ablation (HABL). Mean age was 52.52 ± 11.27 years, and the mean EHRA class was 2.5; 14 (51.8%) patients had a history of electrical cardioversion (n = 6) or catheter ablation (n = 8). Five patients had left ventricular ejection fraction (LVEF) of less than 35%. Mean AF duration for all patients was 3.46 ± 2.5 years. All patients were on antiarrhythmic drugs (AAD) and oral anticoagulation. Patients were scheduled for three, six and 12 month follow-up with seven day Holters, REVEAL® XT and ECHO measurements., Results: The HABL procedure was feasible in all patients. At six months post procedure, 72.2% (13/18) of patients were in SR, and 66.5% (12/18) were off class I/III AADs. Four patients were in AF and one patient developed right atrial flutter. At one year post procedure, 80% (8/10) of patients were in SR and off class I/III AADs. At two year post procedure, 100% (6/6) of patients were in SR and off class I/III AADs. Rapid change in left ventricular function was noted in patients with low LVEF (≤ 35%) prior to the procedure. Patients with LVEF +40% had less apparent improvement., Conclusions: Hybrid, epicardial and endocardial, radiofrequency ablation is feasible and safe, effectively restoring sinus rhythm in the vast majority of patients with PSAF and LSPAF.
- Published
- 2012
45. Immediate and 6-month outcomes of transapical and transfemoral Edwards-Sapien prosthesis implantation in patients with aortic stenosis.
- Author
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Chodór P, Wilczek K, Przybylski R, Krasoń M, Głowacki J, Niklewski T, Podolecki T, Kalarus Z, Poloński L, and Zembala M
- Subjects
- Aged, Aged, 80 and over, Analysis of Variance, Cardiac Catheterization instrumentation, Female, Follow-Up Studies, Heart Valve Prosthesis Implantation instrumentation, Humans, Male, Poland, Prosthesis Design, Recurrence, Risk Factors, Treatment Outcome, Aorta surgery, Aortic Valve Stenosis surgery, Cardiac Catheterization methods, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation methods
- Abstract
Background: severe symptomatic aortic valve stenosis is an unequivocal indication for surgical valve replacement, assuring symptoms relief and increasing survival. About one third of elderly patients is not being operated due to, among others, high peri-procedural risk and comorbidities. Transcatheter aortic valve implantation (TAVI) has recently become a valuable therapeutic option for these patients., Aim: to present early results of first TAVI Edwards-Sapien procedures in our hospital, performed in symptomatic patients with high operational risk or other contraindications for conventional surgery, as well as the results of 6-month follow-up., Method: twelve patients referred for TAVI were included in the analysis. The valve was implanted in 11 patients and in 1 patient the procedure was finished with aortic valve valvuloplasty. Eight (72.7%) patients underwent transapical (TA) and 3 (27.3%) patients transfemoral (TF) TAVI. Seven (63.6%) 26 mm valves and 4 (34.4%) 23 mm valves were implanted., Results: the efficacy of the procedure was 92%: 100% in the TA group, and 75% in the TF group. During the procedure 1 patient developed ventricular fibrillation. Atrial fibrillation and right ventricle perforation by the endocavitary electrode was observed in another patient. Prolonged wound healing occurred in 4 patients and contrast-induced renal failure occurred in 2 patients. There were no deaths at 30-days. Two patients had a pacemaker implanted during hospitalisation. A significant improvement of echocardiographic parameters was observed: maximum gradient across the aortic valve was 104.4 ± 23.9 mm Hg before vs 25.2 ± 6.1 mm Hg after the intervention, p = 0.000001, mean gradient - 63.8 ± 18.3 vs 12.7 ± 3.7 mm Hg, p = 0.000004, and valvular surface - 0.7 ± 0.2 vs 1.5 ± 0.2 cm2, p = 0.000106, respectively. During the 6-month follow-up period 1 patient died of multiorgan failure and 6 patients required another hospitalisation. After 6 months an improvement in physical capacity was observed in all but one patients (NYHA II - 9 patients, NYHA III - 1 patient)., Conclusions: 1. The authors' initial experiences with TAVI Edwards-Sapien procedure confirm its efficacy and safety in patients with symptomatic aortic stenosis and high surgical risk. 2. Echocardiographic parameters of the implanted valves, assessed during hospitalisation and 6 month later, are satisfactory. 3. Due to the risk of complications, patients require careful observation in the postoperative period and during short-term follow-up.
- Published
- 2010
46. ["Vale-in-valve" - first Polish experience in transcatheter treatment of patient with high-risk of redo surgery for degenerative disease of aortic bioprosthesis, using tranaxillary access].
- Author
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Wilczek K, Chodór P, Walas R, Krasoń M, Przybylski R, Niklewski T, Głowacki J, Nadziakiewicz P, Kowalik V, Motyka M, Laborde JC, and Zembala M
- Subjects
- Aged, Aortic Valve Stenosis etiology, Axilla, Cardiac Catheterization instrumentation, Coronary Angiography, Female, Heart Valve Prosthesis Implantation instrumentation, Humans, Poland, Prosthesis Failure, Reoperation, Treatment Outcome, Aortic Valve Stenosis therapy, Bioprosthesis adverse effects, Cardiac Catheterization methods, Heart Valve Prosthesis adverse effects, Heart Valve Prosthesis Implantation methods
- Published
- 2010
47. Autologous skeletal myoblasts transplantation in non-ischaemic cardiomyopathy - a case report.
- Author
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Sokal A, Przybylski R, Zembala M, Rozwadowska N, Bialas M, Lenarczyk R, Niklewski T, Miszalski-Jamka K, Sredniawa B, and Kurpisz M
- Subjects
- Cardiomyopathy, Dilated complications, Humans, Male, Middle Aged, Mitral Valve Insufficiency complications, Mitral Valve Insufficiency surgery, Treatment Outcome, Cardiomyopathy, Dilated surgery, Muscle Fibers, Skeletal transplantation
- Published
- 2010
48. [Comparison of quantitative computerized angiography and intravascular ultrasound in assessment of renal artery stenosis in patients with renovascular hypertension treated with percutaneous transluminal angioplasty with concomitant intravascular brachytherapy].
- Author
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Lekston A, Niklewski T, Szkodziński J, Gasior M, Gierlotka M, Chudek J, Wiecek A, Kokot F, Fijałkowski M, Białas B, Osadnik T, Maciejewski B, and Poloński L
- Subjects
- Angioplasty, Balloon, Brachytherapy, Female, Humans, Male, Middle Aged, Recurrence, Renal Artery Obstruction etiology, Treatment Outcome, Angiography, Digital Subtraction, Hypertension, Renovascular complications, Hypertension, Renovascular therapy, Renal Artery Obstruction diagnostic imaging, Ultrasonography, Interventional
- Abstract
Unlabelled: Renal Angiography and IntraVascular UltraSonography (IVUS), are valuable diagnosis methods for assessment of renovascular hypertension (RVH). Endovascular techniques employing percutaneous transluminal renal angioplasty (PTRA) are effective for therapy of ischaemic nephropathy in patients with RVH. Success of PTRA is limited by a significant rate of restenosis. THE AIM OF STUDY was to compare the assessment of residual stenosis and restenosis with angiography and IVUS., Material and Methods: Residual stenosis after PTRA (combine with intravascular brachyterapy in 33 patients--group I) were assessed in 62 RVH patients with angiography and IVUS techniques. Both baseline and 9-month follow-up quantitative computerized angiography (QCA) and intravascular ultrasound (IVUS) analysis were performed to assess restenosis., Results: Residual stenosis after PTRA of atherosclerotic lesions was slightly lower with QCA than IVUS (in group I 15.49 +/- 4.69% and 18.81 +/- 4.81% and in group II 15.36 +/- 4.68% and 18.43 +/- 4.69%, respectively). The loss of lumen area in QCA assessment was slightly greater than in IVUS measurement (1.2 +/- 0.7 mm vs. 0.9 +/- 0.8 mm in group I i 1.7 +/- 0.7 mm vs. 1.5 +/- 0.8 mm in group II). The angiographic measurements of late lumen loss, diameter stenosis, and minimal lumen diameter correlated well with IVUS measurements (r = 0.81, r = 0.89 and r = 0.89 respectively)., Conclusions: Angiography and IVUS are equally effective methods for diagnosis and assessment of residual stenosis and restenosis after endovascular renal artery revascularisation.
- Published
- 2010
49. Lipomatous hypertrophy of the interatrial septum: a rare cause of right ventricular impairment.
- Author
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Hudzik B, Filipiak K, Zembala M, Szkodzinski J, Miszalski-Jamka K, Niklewski T, Głowacki J, Zembala M, and Polonski L
- Subjects
- Aged, Atrial Septum pathology, Cardiomyopathies diagnosis, Female, Humans, Hypertrophy, Lipomatosis diagnosis, Magnetic Resonance Imaging, Treatment Outcome, Ventricular Outflow Obstruction diagnosis, Atrial Septum surgery, Cardiomyopathies surgery, Lipomatosis surgery, Ventricular Outflow Obstruction etiology, Ventricular Outflow Obstruction surgery
- Abstract
We report a case of a 70-year-old woman admitted with symptoms of decompensated heart failure. Magnetic resonance imaging revealed lipomatous hypertrophy of the interatrial septum with partial upper right atrial inflow obstruction, partial obstruction of the right ventricular outflow tract, and excessive accumulation of adipose tissue in the pericardial space. The patient underwent excision of the septal lipomatous mass, which relieved the right ventricular outflow obstruction.
- Published
- 2010
- Full Text
- View/download PDF
50. [Percutaneous transfemoral aortic CoreValve(R) implantations in high risk patients--another Polish good experience].
- Author
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Wilczek K, Chodór P, Laborde JC, Przybylski R, Krasoń M, Niklewski T, Głowacki J, Nadziakiewicz P, Kusa J, Kalarus Z, Poloński L, and Zembala M
- Subjects
- Aortic Valve surgery, Aortography methods, Coronary Angiography methods, Humans, Poland, Severity of Illness Index, Treatment Outcome, Aortic Valve Stenosis surgery, Cardiac Catheterization methods, Heart Valve Prosthesis, Heart Valve Prosthesis Implantation methods, Subclavian Artery surgery
- Published
- 2009
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