223 results on '"Michalis L. K."'
Search Results
2. Modeling of Stent Implantation in a Human Stenotic Artery
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Karanasiou, G. S., Sakellarios, A. I., Tripoliti, E. E., Petrakis, E. G. M., Zervakis, M. E., Migliavacca, Francesco, Dubini, Gabriele, Dordoni, Elena, Michalis, L. K., Fotiadis, D. I., Magjarevic, Ratko, Editor-in-chief, Ładyzynsk, Piotr, Series editor, Ibrahim, Fatimah, Series editor, Lacković, Igor, Series editor, Rock, Emilio Sacristan, Series editor, and Roa Romero, Laura M., editor
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- 2014
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3. Finite Element Modeling of LDL Transport in Carotid Artery Bifurcations
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Sakellarios, A. I., Fotiadis, D. I., Michalis, L. K., Magjarevic, R., editor, Nagel, J. H., editor, Vander Sloten, Jos, editor, Verdonck, Pascal, editor, Nyssen, Marc, editor, and Haueisen, Jens, editor
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- 2009
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4. Oral Presentation No. 079 Quality of life in patients after pulmonary embolism. Correlation with echocardiographic and biochemical parameters
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Kardakari, O L, primary, Ballas, C H, additional, Lakkas, L A, additional, Giannou, S O, additional, Stamou, I L, additional, Samara, I O, additional, Kalogeras, P E, additional, Siaravas, K O, additional, Papaioannou, E F, additional, Mpouratzis, B A, additional, Sioros, S P, additional, Lambrinou, E K, additional, Dimakopoulos, G E, additional, Konstantinidis, A T H, additional, Naka, K K, additional, Michalis, L K, additional, and Katsouras, C S, additional
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- 2022
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5. Myocardial strain indices and coronary flow reserve are only mildly affected in healthy hypertensive patients
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Evangelou, D, primary, Bechlioulis, A, additional, Tzeltzes, G, additional, Lakkas, L, additional, Theodorou, I, additional, Kalaitzidis, R, additional, Dounousi, E, additional, Michalis, L K, additional, and Naka, K K, additional
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- 2022
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6. Balloon Angioplasty Optimization: Should We Measure Balloon Volume As Well As Pressure?
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Shehab, M., Michalis, L. K., and Rees, M. R.
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- 2008
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7. A knowledge-based technique for automated detection of ischaemic episodes in long duration electrocardiograms
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Papaloukas, C., Fotiadis, D. I., Liavas, A. P., Likas, A., and Michalis, L. K.
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- 2001
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8. Effects of insulin resistance on the cardiovascular system: 902
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Michalis, L. K.
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- 2011
9. Remote sensing natural time analysis of heartbeat data by means of a portable photoplethysmography device
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Baldoumas, G., primary, Peschos, D., additional, Tatsis, G., additional, Christofilakis, V., additional, Chronopoulos, S. K., additional, Kostarakis, P., additional, Varotsos, P. A., additional, Sarlis, N. V., additional, Skordas, E. S., additional, Bechlioulis, A., additional, Michalis, L. K., additional, and Naka, K. K., additional
- Published
- 2020
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10. Echocardiographic assessment of systolic and diastolic left ventricular function using an automatic boundary detection system: Correlation with established invasive and non invasive parameters
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Michalis, L. K., Thomas, M. R., Jewitt, D. E., and Monaghan, M. J.
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- 1995
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11. Hyperinsulinaemia and endothelial dysfunction in obese women with polycystic ovary syndrome: 211
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Kravariti, M., Naka, K. K., Kazakos, N., Michalis, L. K., Tsatsoulis, A., and Kalantaridou, S. N.
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- 2005
12. Adhesion molecules in women with polycystic ovary syndrome; relation to the metabolic syndrome: 213
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Kravariti, M., Naka, K. K., Kolaitis, N., Kazakos, N., Michalis, L. K., Tsatsoulis, A., and Kalantaridou, S. N.
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- 2005
13. Endothelial dysfunction in young women with polycystic ovary syndrome does not depend on obesity: 210
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Kravariti, M., Naka, K. K., Kalantaridou, S. N., Kazakos, N., Katsouras, C. S., Paraskevaidis, E. A., Chrousos, G. P., Michalis, L. K., and Tsatsoulis, A.
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- 2005
14. C-reactive protein in women with polycystic ovary syndrome and its relation to obesity: 212
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Kravariti, M., Kalantaridou, S. N., Kostoula, A., Naka, K. K., Kazakos, N., Michalis, L. K., and Tsatsoulis, A.
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- 2005
15. Early signs of atherosclerosis in young women with premature ovarian failure: the effect of hormone therapy: 199
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Michalis, L. K.
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- 2005
16. The impact of central obesity on diastolic dysfunction in diabetic hypertensive patients: 9
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Papathanassiou, K., Naka, K. K., Pappas, K., Makriyiannis, D., Kotsia, A., Katsouras, C. S., Tsatsoulis, A., and Michalis, L. K.
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- 2005
17. Diastolic dysfunction is common in diabetic patients independent of the presence of hypertension: 7
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Papathanassiou, K., Pappas, K., Naka, K. K., Makriyiannis, D., Kotsia, A., Kazakos, N., Katsouras, C. S., Tsatsoulis, A., and Michalis, L. K.
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- 2005
18. Diastolic dysfunction and arterial stiffness in diabetic patients with and without hypertension: 8
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Papathanassiou, K., Naka, K. K., Pappas, K., Makriyiannis, D., Kotsia, A., Kazakos, N., Katsouras, C. S., Tsatsoulis, A., and Michalis, L. K.
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- 2005
19. An Epidemiologic Study of Acute Coronary Syndromes in Northwestern Greece
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Papathanasiou, A. I., Pappas, K. D., Korantzopoulos, P., Leontaridis, J. P., Vougiouklakis, T. G., Kiriou, M., Dimitroula, V., Michalis, L. K., and Goudevenos, J. A.
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- 2004
20. Haemodynamic and catecholamine response to simulated ventricular tachycardia in man: effect of baseline left ventricular function
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Kolettis, T M, Psarros, E, Kyriakides, Z S, Katsouras, C S, Michalis, L K, and Sideris, D A
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- 2003
21. Coarctation of the aorta with lower blood pressure at the right upper extremity
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Goudevenos, J A, Papathanasiou, A, and Michalis, L K
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- 2002
22. Case Report: Percutaneous Removal of Pulmonary Artery Thrombus in a Patient with Massive Pulmonary Embolism Using the Hydrolyser Catheter: The First Human Experience
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MICHALIS, L. K., TSETIS, D. K., and REES, M. R.
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- 1997
23. Remote sensing natural time analysis of heartbeat data by means of a portable photoplethysmography device.
- Author
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Baldoumas, G., Peschos, D., Tatsis, G., Christofilakis, V., Chronopoulos, S. K., Kostarakis, P., Varotsos, P. A., Sarlis, N. V., Skordas, E. S., Bechlioulis, A., Michalis, L. K., and Naka, K. K.
- Subjects
PHOTOPLETHYSMOGRAPHY ,REMOTE sensing ,DATA analysis ,CONGESTIVE heart failure ,LONGITUDINAL method ,CARDIAC arrest - Abstract
Very recent work reported that patients can monitor their heartbeat at home and specify their heart conditions by means of a millimetre wave radar, but there exist serious limitations because the radar sensor is sensitive to significant body motions that cause Doppler frequency shifts. Such limitations do not exist when using a recently constructed portable photoplethysmography (PPG) electronic device, which gives results comparable with a standard electrocardiogram (ECG). Since all portable modern devices such as smart phones tablets etc support Bluetooth communication that allows easy and direct communication with our PPG device, it may give us remote sensing heart related information. Applying natural time analysis to data simultaneously collected with an ECG system and a PPG device and using two complexity measures quantifying the entropy change in natural time under time reversal, a distinction is achieved between healthy (H) individuals and congestive heart failure (CHF) patients. Employing a support vector machine classifier for CHF discrimination to a total of 99 individuals (including 67 CHF), we obtained 97.7% sensitivity. In a follow up study challenging results are obtained since during the subsequent period six individuals died, who remarkably obeyed additional complexity measures that may distinguish sudden cardiac death individuals from CHF. [ABSTRACT FROM AUTHOR]
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- 2021
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24. Vibrational angioplasty in chronic total occlusions
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Rees, M R and Michalis, L K
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- 1993
25. P766The effect of endothelial shear stress on fibroatheroma progression: a serial intravascular ultrasound, optical coherence tomography and blood flow simulation study
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Zanchin, T Z, primary, Karagiannis, A, additional, Sakellaris, A, additional, Koskinas, K C, additional, Yamaji, K C, additional, Yasushi, U, additional, Fotiadis, D, additional, Roffi, M, additional, Pedrazzini, G, additional, Baumbach, A, additional, Michalis, L K, additional, Matter, C V, additional, Luescher, T F, additional, Windecker, S, additional, and Raeber, L, additional
- Published
- 2018
- Full Text
- View/download PDF
26. P6405Implications of the local haemodynamic forces on plaque morphology: A serial intravascular ultrasound and optical coherence tomography analysis
- Author
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Ramasamy, A, primary, Bourantas, C V, additional, Sakellarios, A, additional, Karagiannis, A, additional, Zanchin, T, additional, Yamaji, K, additional, Taniwaki, M, additional, Heg, D, additional, Fotiadis, D I, additional, Baumbach, A, additional, Michalis, L K, additional, Serruys, P W, additional, Garcia-Garcia, H M, additional, Windecker, S, additional, and Raber, L, additional
- Published
- 2018
- Full Text
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27. Management and outcome of patients with established coronary artery disease: the Euro Heart Survey on coronary revascularization
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Lenzen, M. J., Boersma, E., Bertrand, M. E., Maier, W., Moris, C., Piscione, F., Sechtem, U., Stahle, E., Widimsky, P., De Jaegere, P., Scholte Op Reimer, W. J. M., Mercado, N., Wijns, W., Meier, B., Sergeant, P., Vos, J., Unger, F., Manini, Malika, Bramley, Claire, Laforest, Valérie, Taylor, Charles, Del Gaiso, Susan, Huber, Kurt, De Backer, Guy, Sirakova, Vera, Cerbak, Roman, Thayssen, Per, Lehto, Seppo, Blanc, Jean-Jacques, Delahaye, François, Kobulia, Bondo, Zeymer, Uwe, Cokkinos, Dennis, Karlocai, Kristof, Graham, Ian, Shelley, Emer, Behar, Shlomo, Maggioni, Aldo, Grabauskiene, Virginija, Deckers, Jaap, Asmussen, Inger, Stepinska, Janina, Gonçalves, Lino, Mareev, Vyacheslav, Riecansky, Igor, Kenda, Miran F., Alonso, Angeles, Lopez-Sendon, José Luis, Rosengren, Annika, Buser, Peter, Okay, Tugrul, Sychov, Oleg, Fox, Kevin, Wood, David, Boersma, Eric, Crijns, Harry, Fox, Kim, McGregor, Keith, Mulder, Barbara, Priori, Sylvia, Rydén, Lars, Tavazzi, Luigi, Vahanian, Alec, Vardas, Panos, Wijns, William, Sarkisyan, Karine, Glogar, H. D., Derntl, Michael, Frick, Matthias, Pachinger, O., Zwick, Ralf, Vrints, Christiaan, Van Hertbruggen, Els, Vercammen, Marc, Sysmans, Tineke, Schroeder, E., Domange, Juliette, De Pril, Hilde, De Vriese, Johan, Van Hecke, Tonny, Legrand, V., Gillon, Marie-France, Richardy, Michel, Doneux, P., Petrov, Ivo, Jorgova, J., Starcevic, Boris, Eeckhout, Eric, Berger, Alexandre, Prudent, Veronique, Camenzind, E., Masson, Nicolas, Zambartas, Costas, Kleanthous, Helen, Widimsky, Petr, Stellova, Blanka, Aschermann, Michael, Simek, Stanislav, Kautzner, J., Karmazin, Vladimir, Svab, P., Indrak, Jan, Branny, M., Hladilova, Kveta, Kala, P., Thayssen, P., Cappelen, Helle, Jensen, Lisette Okkels, Gitt, A., Gehrke, Konstanze, Erbel, R., Gutersohn, Achim, Eggebrecht, Holger, Al Khani, Murad, Sechtem, Udo, Rosenberger, Antje, Vogelsberg, Holger, Klepzig, H., Schmidt, Arnold, Silber, Sigmund, Mau, Birgit, Leuner, Christian, Czyborra, Karen, Reuschling, Christina, Muno, Eva, Kleber, F., Rux, Sascha, Zeymer, U., Saad, Aly, Ibrahim, B. S. S., Elabady, Maged, Castro Beiras, A., Fernandez, Jorge Salgado, Navarro Del Arno, Felipe, Iniguez Romo, A., Cruz Fernandez, J. M., Mayoreal, Alejandro Recio, Rebanal, Franciso Javier Rivero, De La Borbolla, Mariano Garcia, Chaparro, Marinela, Brotons, C., Permanyer Miralda, C., Vilai Perez, Srta Irma, Moris, Cesar, Fernandez Aviles, F., De La Fuente Galan, Luis, Vinuela, Paula Tejedor, Malpartida De Torres, F., Mora, Javier, Rodriguez, Ignacio Santos, Bustamante, Itziar Piedra, Sanchez Fernandez, Pedro L., Diago Torrent, J. L., Diez Gil, Jose L., Perpinan, Javier, Palacios Motilla, V., Soledad Alcasena Juango, M., Berjon-Reyero, Jesus, Melgares Moreno, R., Guerrero, Juan Carlos Fernandez, Lehto, S., Savolainen, Kirsti, Nieminen, M. S., Syvanne, Mikko, Cohen-Solal, A., Oboa, Antoine-Sylvain, Bassand, J. P., Espinosa, Denis Pales, Jouet, Veronique, Montalescot, G., Gallois, Vanessa, Daubert, J. C., Clerc, Jean Michel, Machecourt, Jacques, Cottin, Y., Walker, D., Holland, Fhiona, Wood, D., Prosser, Jenni, Muir, Lis, Barber, Kate, Cleland, J. G. F., Cook, Jocelyn, Chapichadze, Zaza, Christos, Ioannis Skoularigisn Athanasiou, Tsiavou, Nastasia, Chrysohoou, Christina, Manginas, Athanassios, Terrovitis, John, Kanakakis, John, Vavuranakis, Manolis, Drakos, Stavros, Farmakis, Thomas, Samara, C., Papakosta, Christina, Bourantas, Christos, Michalis, L. K., Christos, Mpourantas, Foussas, Stefanos, Adamopoulou, Evdokia, Vardas, P. E., Marketou, Mary, Alotti, N., Basa, Anna Maria, Vigh, Andras, Preda, Istvan, Csoti, Eva, Keltai, M., Kerkovits, G., Hendler, Alberto, Blatt, Alex, Beyar, R., Shefer, Arie, Halon, David, Bentzvi, Margalait, Avramovitch, Naomi, Bakst, Avinoam, Cafri, Carlos, Grosbard, Aviva, Margolis, Bella, Suleiman, Khalid, Banai, Shmuel, Meerkin, David, Mosseri, Morris, Guita, Pnina, Jabara, Rifat, Jafari, Jamal, Ben Shitrit, Debi, Ghasan, null, Salameh, null, Brezins, Marc, Van Den Akker-Berman, Lily, Guetta, Victor, Rozenman, Yoseph, Biagini, A., Berti, Sergio, Ferrero, Massimo, Colombo, A., Roccaforte, R., Milici, Caterina, Scarpino, L., Salvi, A., Desideri, Alessandro, Sabbadin, Daniela, Galassi, Alfredo, Giuffrida, Giuseppe, Rognoni, Andrea, Vassanelli, Corrado, Paffoni, Paola, Cioppa, Angelo, Rubino, Paolo, De Carlo, Marco, Petronio, Anna Sonia, Naccarella, F., Saia, Francesco, Marzocchi, Antonio, Maranga, Stefano Sdringola, Presbitero, P., Valsecchi, Fazya, Piscione, Federico, Esposito, Giovanni, Santini, Napoli M., Tubaro, Marco, Erglis, A., Narbute, Inga, Kavoliuniene, Ausra, Zaliunas, R., Navickas, Ramunas, Grabauskiene, V., Luckute, Davia, Subkovas, Eduardas, Wagner, Daniel, Vermeer, F., Lousberg, Aimee, Fransen, Heidi, Breeman, Arno, Tebbe, Henriette, De Boer, M. J., Van Der Wal, Metske, Deckers, J., Vos, Jeroen, Leenders, C. M., Veerhoek, M. J., Jansen, Chris, Bijl, M., Koppelaar, Colinda, Van Den Linden, null, Brons, R., Widdershofen, J. W. M. G., Broers, Herman, Kontny, F., Jonzon, Marianne, Wodniecki, Jan, Tomasik, Andrzej, Trusz-Gluza, M., Nowak, Seweryn, Ruzyllo, Witold, Deptuch, Tomasz, Marques, Jorge, Matias, F., Madeira, H., Oliveira, Joaquim, Sargento, Luis, Ionac, Adina, Dragulescu, Iosif Stefan, Mut-Vitcu, Bogdan, Maximov, Daniela, Dorobantu, M., Apetrei, E., Niculescu, Rodica, Petrescu, Virgil, Bucsa, Adrian, Deleanu, Dan, Benedek, I. S., Hintea, Theodora, Aronov, D., Tikhomirova, Elena, Kranjec, I., Prokselj, Katja, Kanic, Vojko, Sepetoglu, Ahmet, Aytekin, S., Aytekin, V., Catakoglu, Alp Burak, Parlar, Hayri, Tufekcioglu, Suavi, Ozyedek, Zeki, Baltali, Mehmet, Kiziltan, null, Vukovic, Milan, Neskovic, A. N., Lenzen, M. J, Boersma, E, Bertrand, Me, Maier, W, Moris, C, Esposito, Giovanni, Piscione, Federico, Sechtem, U, Stahle, E, Widimsky, P, de Jaegere, P, Scholte op Reimer, W. J. M, Mercado, N, Wijns, W., University of Zurich, Wijns, W, Lenzen, M. J., Boersma, E., Bertrand, M. E., Maier, W., Moris, C., Piscione, F., Sechtem, U., Stahle, E., Widimsky, P., De Jaegere, P., Scholte Op Reimer, W. J. M., Mercado, N., Meier, B., Sergeant, P., Vos, J., Unger, F., Manini, Malika, Bramley, Claire, Laforest, Valérie, Taylor, Charle, Del Gaiso, Susan, Huber, Kurt, De Backer, Guy, Sirakova, Vera, Cerbak, Roman, Thayssen, Per, Lehto, Seppo, Blanc, Jean-Jacque, Delahaye, Françoi, Kobulia, Bondo, Zeymer, Uwe, Cokkinos, Denni, Karlocai, Kristof, Graham, Ian, Shelley, Emer, Behar, Shlomo, Maggioni, Aldo, Grabauskiene, Virginija, Deckers, Jaap, Asmussen, Inger, Stepinska, Janina, Gonçalves, Lino, Mareev, Vyacheslav, Riecansky, Igor, Kenda, Miran F., Alonso, Angele, Lopez-Sendon, José Lui, Rosengren, Annika, Buser, Peter, Okay, Tugrul, Sychov, Oleg, Fox, Kevin, Wood, David, Boersma, Eric, Crijns, Harry, Fox, Kim, Mcgregor, Keith, Mulder, Barbara, Priori, Sylvia, Rydén, Lar, Tavazzi, Luigi, Vahanian, Alec, Vardas, Pano, Wijns, William, Sarkisyan, Karine, Glogar, H. D., Derntl, Michael, Frick, Matthia, Pachinger, O., Zwick, Ralf, Vrints, Christiaan, Van Hertbruggen, El, Vercammen, Marc, Sysmans, Tineke, Schroeder, E., Domange, Juliette, De Pril, Hilde, De Vriese, Johan, Van Hecke, Tonny, Legrand, V., Gillon, Marie-France, Richardy, Michel, Doneux, P., Petrov, Ivo, Jorgova, J., Starcevic, Bori, Eeckhout, Eric, Berger, Alexandre, Prudent, Veronique, Camenzind, E., Masson, Nicola, Zambartas, Costa, Kleanthous, Helen, Widimsky, Petr, Stellova, Blanka, Aschermann, Michael, Simek, Stanislav, Kautzner, J., Karmazin, Vladimir, Svab, P., Indrak, Jan, Branny, M., Hladilova, Kveta, Kala, P., Thayssen, P., Cappelen, Helle, Jensen, Lisette Okkel, Gitt, A., Gehrke, Konstanze, Erbel, R., Gutersohn, Achim, Eggebrecht, Holger, Al Khani, Murad, Sechtem, Udo, Rosenberger, Antje, Vogelsberg, Holger, Klepzig, H., Schmidt, Arnold, Silber, Sigmund, Mau, Birgit, Leuner, Christian, Czyborra, Karen, Reuschling, Christina, Muno, Eva, Kleber, F., Rux, Sascha, Zeymer, U., Saad, Aly, Ibrahim, B. S. S., Elabady, Maged, Castro Beiras, A., Fernandez, Jorge Salgado, Navarro Del Arno, Felipe, Iniguez Romo, A., Cruz Fernandez, J. M., Mayoreal, Alejandro Recio, Rebanal, Franciso Javier Rivero, De La Borbolla, Mariano Garcia, Chaparro, Marinela, Brotons, C., Permanyer Miralda, C., Vilai Perez, Srta Irma, Moris, Cesar, Fernandez Aviles, F., De La Fuente Galan, Lui, Vinuela, Paula Tejedor, Malpartida De Torres, F., Mora, Javier, Rodriguez, Ignacio Santo, Bustamante, Itziar Piedra, Sanchez Fernandez, Pedro L., Diago Torrent, J. L., Diez Gil, Jose L., Perpinan, Javier, Palacios Motilla, V., Soledad Alcasena Juango, M., Berjon-Reyero, Jesu, Melgares Moreno, R., Guerrero, Juan Carlos Fernandez, Lehto, S., Savolainen, Kirsti, Nieminen, M. S., Syvanne, Mikko, Cohen-Solal, A., Oboa, Antoine-Sylvain, Bassand, J. P., Espinosa, Denis Pale, Jouet, Veronique, Montalescot, G., Gallois, Vanessa, Daubert, J. C., Clerc, Jean Michel, Machecourt, Jacque, Cottin, Y., Walker, D., Holland, Fhiona, Wood, D., Prosser, Jenni, Muir, Li, Barber, Kate, Cleland, J. G. F., Cook, Jocelyn, Chapichadze, Zaza, Christos, Ioannis Skoularigisn Athanasiou, Tsiavou, Nastasia, Chrysohoou, Christina, Manginas, Athanassio, Terrovitis, John, Kanakakis, John, Vavuranakis, Manoli, Drakos, Stavro, Farmakis, Thoma, Samara, C., Papakosta, Christina, Bourantas, Christo, Michalis, L. K., Christos, Mpouranta, Foussas, Stefano, Adamopoulou, Evdokia, Vardas, P. E., Marketou, Mary, Alotti, N., Basa, Anna Maria, Vigh, Andra, Preda, Istvan, Csoti, Eva, Keltai, M., Kerkovits, G., Hendler, Alberto, Blatt, Alex, Beyar, R., Shefer, Arie, Halon, David, Bentzvi, Margalait, Avramovitch, Naomi, Bakst, Avinoam, Cafri, Carlo, Grosbard, Aviva, Margolis, Bella, Suleiman, Khalid, Banai, Shmuel, Meerkin, David, Mosseri, Morri, Guita, Pnina, Jabara, Rifat, Jafari, Jamal, Ben Shitrit, Debi, Ghasan, Null, Salameh, Null, Brezins, Marc, Van Den Akker-Berman, Lily, Guetta, Victor, Rozenman, Yoseph, Biagini, A., Berti, Sergio, Ferrero, Massimo, Colombo, A., Roccaforte, R., Milici, Caterina, Scarpino, L., Salvi, A., Desideri, Alessandro, Sabbadin, Daniela, Galassi, Alfredo, Giuffrida, Giuseppe, Rognoni, Andrea, Vassanelli, Corrado, Paffoni, Paola, Cioppa, Angelo, Rubino, Paolo, De Carlo, Marco, Petronio, Anna Sonia, Naccarella, F., Saia, Francesco, Marzocchi, Antonio, Maranga, Stefano Sdringola, Presbitero, P., Valsecchi, Fazya, Santini, Napoli M., Tubaro, Marco, Erglis, A., Narbute, Inga, Kavoliuniene, Ausra, Zaliunas, R., Navickas, Ramuna, Grabauskiene, V., Luckute, Davia, Subkovas, Eduarda, Wagner, Daniel, Vermeer, F., Lousberg, Aimee, Fransen, Heidi, Breeman, Arno, Tebbe, Henriette, De Boer, M. J., Van Der Wal, Metske, Deckers, J., Vos, Jeroen, Leenders, C. M., Veerhoek, M. J., Jansen, Chri, Bijl, M., Koppelaar, Colinda, Van Den Linden, Null, Brons, R., Widdershofen, J. W. M. G., Broers, Herman, Kontny, F., Jonzon, Marianne, Wodniecki, Jan, Tomasik, Andrzej, Trusz-Gluza, M., Nowak, Seweryn, Ruzyllo, Witold, Deptuch, Tomasz, Marques, Jorge, Matias, F., Madeira, H., Oliveira, Joaquim, Sargento, Lui, Ionac, Adina, Dragulescu, Iosif Stefan, Mut-Vitcu, Bogdan, Maximov, Daniela, Dorobantu, M., Apetrei, E., Niculescu, Rodica, Petrescu, Virgil, Bucsa, Adrian, Deleanu, Dan, Benedek, I. S., Hintea, Theodora, Aronov, D., Tikhomirova, Elena, Kranjec, I., Prokselj, Katja, Kanic, Vojko, Sepetoglu, Ahmet, Aytekin, S., Aytekin, V., Catakoglu, Alp Burak, Parlar, Hayri, Tufekcioglu, Suavi, Ozyedek, Zeki, Baltali, Mehmet, Kiziltan, Null, Vukovic, Milan, Neskovic, A. N., Cardiology, Lenzen, Mj, and Scholte op Reimer, Wj
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Practice survey ,Male ,Coronary Stenosi ,Coronary angiography ,medicine.medical_treatment ,Myocardial Infarction ,Coronary Artery Disease ,Angina ,Coronary artery disease ,Myocardial Revascularization ,Stent ,Myocardial infarction ,Coronary Artery Bypass ,Angioplasty, Balloon, Coronary ,CABG ,PCI ,Professional Practice ,Health Survey ,Middle Aged ,Europe ,Treatment Outcome ,Epidemiologic Method ,Practice Guidelines as Topic ,Cardiology ,Stents ,Female ,Guideline Adherence ,Cardiology and Cardiovascular Medicine ,Human ,medicine.medical_specialty ,outcome ,Euro Heart Survey ,610 Medicine & health ,Platelet Glycoprotein GPIIb-IIIa Complex ,142-005 142-005 ,2705 Cardiology and Cardiovascular Medicine ,Angioplasty ,Internal medicine ,medicine ,Humans ,Angina, Unstable ,cardiovascular diseases ,Interventional cardiology ,Unstable angina ,business.industry ,Coronary Artery Bypa ,Coronary Stenosis ,Percutaneous coronary intervention ,Length of Stay ,medicine.disease ,Health Surveys ,Conventional PCI ,570 Life sciences ,biology ,Epidemiologic Methods ,business - Abstract
AIMS: The purpose of the Euro Heart Survey Programme of the European Society of Cardiology is to evaluate to which extent clinical practice endorses existing guidelines as well as to identify differences in population profiles, patient management, and outcome across Europe. The current survey focuses on the invasive diagnosis and treatment of patients with established coronary artery disease (CAD). METHODS AND RESULTS: Between November 2001 and March 2002, 7769 consecutive patients undergoing invasive evaluation at 130 hospitals (31 countries) were screened for the presence of one or more coronary stenosis >50% in diameter. Patient demographics and comorbidity, clinical presentation, invasive parameters, treatment options, and procedural techniques were prospectively entered in an electronic database (550 variables+29 per diseased coronary segment). Major adverse cardiac events (MACE) were evaluated at 30 days and 1 year. Out of 5619 patients with angiographically proven coronary stenosis (72% of screened population), 53% presented with stable angina while ST elevation myocardial infarction (STEMI) was the indication for coronary angiography in 16% and non-ST segment elevation myocardial infarction or unstable angina in 30%. Only medical therapy was continued in 21%, whereas mechanical revascularization was performed in the remainder [percutaneous coronary intervention (PCI) in 58% and coronary artery bypass grafting (CABG) in 21%]. Patients referred for PCI were younger, were more active, had a lower risk profile, and had less comorbid conditions. CABG was performed mostly in patients with left main lesions (21%), two- (25%), or three-vessel disease (67%) with 4.1 diseased segments, on average. Single-vessel PCI was performed in 82% of patients with either single- (45%), two- (33%), or three-vessel disease (21%). Stents were used in 75% of attempted lesions, with a large variation between sites. Direct PCI for STEMI was performed in 410 cases, representing 7% of the entire workload in the participating catheterization laboratories. Time delay was within 90 min in 76% of direct PCI cases. In keeping with the recommendations of practice guidelines, the survey identified under-use of adjunctive medication (GP IIb/IIIa receptor blockers, statins, and angiotensin-converting enzyme-inhibitors). Mortality rates at 30 days and 1 year were low in all subgroups. MACE primarily consisted of repeat PCI (12%). CONCLUSION: The current Euro Heart Survey on coronary revascularization was performed in the era of bare metal stenting and provides a global European picture of the invasive approach to patients with CAD. These data will serve as a benchmark for the future evaluation of the impact of drug-eluting stents on the practice of interventional cardiology and bypass surgery.
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- 2005
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28. P.050 The Insulin Sensitizer Rosiglitazone Improves Endothelial Function in Patients with Type 2 Diabetes on Insulin
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Papathanassiou, K., Naka, K. K., Kazakos, N., Pappas, K., Liveris, K., Makriyiannis, D., Tsatsoulis, A., and Michalis, L. K.
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- 2006
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29. Contemporary issues in the management of patient with coronary artery disease across the cardiology spectrum-part II
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Michalis, L. K., primary
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- 2017
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30. The additional value of patient-reported health status in predicting 1-year mortality after invasive coronary procedures: a report from the Euro Heart Survey on Coronary Revascularisation
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Lenzen M. J., Scholte Op Reimer W. J. M., Pedersen S. S., Boersma E., Maier W., Widimsky P., Simoons M. L., Mercado N. F., Wijns W., Bertrand M., Meier B., Sechtem U., Sergeant P., Stahle E., Unger F., Manini M., Bramley C., Laforest V., Taylor C., Del Gaiso S., Huber K., De Backer G., Sirakova V., Cerbak R., Thayssen P., Lehto S., Blanc J. -J., Delahaye F., Kobulia B., Zeymer U., Cokkinos D., Karlocai K., Graham I., Shelley E., Behar S., Maggioni A., Grabauskiene V., Deckers J., Asmussen I., Stepinska J., Goncalves L., Mareev V., Riecansky I., Kenda M. F., Alonso A., Lopez-Sendon J. L., Rosengren A., Buser P., Okay T., Sychov O., Fox K., Wood D., Crijns H., McGregor K., Mulder B., Priori S., Ryden L., Tavazzi L., Vahanian A., Vardas P., Sarkisyan K., Glogar H. D., Frick M., Pachinger O., Zwick R., Vrints C., Van Hertbruggen E., Vercammen M., Sysmans T., Schroeder E., Domange J., De Pril H., De Vriese J., Van Hecke T., Legrand V., Gillon M. -F., Richardy M., Doneux P., Petrov I., Jorgova J., Starcevic B., Eeckhout E., Berger A., Prudent V., Camenzind E., Masson N., Zambartas C., Kleanthous H., Stellova B., Aschermann M., Simek S., Kautzner J., Karmazin V., Svab P., Indrak J., Branny M., Hladilova K., Kala P., Cappelen H., Jensen L. O., Gitt A., Gehrke K., am Rhein L., Erbel R., Gutersohn A., Eggebrecht H., Al Khani M., Rosenberger A., Vogelsberg H., Klepzig H., Schmidt A., Silber S., Mau B., Leuner C., Czyborra K., Reuschling C., Muno E., Nauheim B., Kleber F., Rux S., Saad A., Elabady M., Beiras A. C., Fernandez J. S., del Arno F. N., Romo A. I., Fernandez J. M. C., Mayoreal A. R., Rebanal F. J. R., de la Borbolla M. G., Chaparro M., Brotons C., Miralda C. P., Vila i Perez S. I., Moris C., Aviles F. F., de la Fuente Galan L., Vinuela P. T., de Torres F. M., Mora J., Rodriguez I. S., Bustamante I. P., Fernandez P. L. S., Torrent J. L. D., Diez Gil J. L., Perpinan J., Motilla V. P., Juango M. S. A., Berjon-Reyero J., Moreno R. M., Guerrero J. C. F., Savolainen K., Syvanne M., Cohen-Solal A., Oboa A. -S., Bassand J. P., Espinosa D. P., Jouet V., Cedex B., Montalescot G., Gallois V., Daubert J. C., Clerc J. M., Machecourt J., Cottin Y., Walker D., Holland F., Prosser J., Muir L., Barber K., Cleland J. G. F., Cook J., Chapichadze Z., Christos I. S. A., Tsiavou N., Chrysohoou C., Manginas A., Terrovitis J., Kanakakis J., Vavuranakis M., Drakos S., Farmakis T., Samara C., Papakosta C., Bourantas C., Michalis L. K., Christos M., Foussas S., Adamopoulou E., Vardas P. E., Marketou M., Alotti N., Basa A. M., Vigh A., Preda I., Csoti E., Keltai M., Kerkovits G., Hendler A., Blatt A., Yakov B., Beyar R., Shefer A., Halon D., Bentzvi M., Avramovitch N., Bakst A., Saba K., Cafri C., Grosbard A., Sheva B., Margolis B., Suleiman K., Banai S., Meerkin D., Mosseri M., Guita P., Jabara R., Jafari J., Shitrit D. B., Ghasan Salameh, Brezins M., van den Akker-Berman L., Guetta V., Hashomer T., Rozenman Y., Biagini A., Berti S., Ferrero M., Colombo A., Roccaforte R., Milici C., Scarpino L., Salvi A., Desideri A., Sabbadin D., Veneto C., Galassi A., Giuffrida G., Rognoni A., Vassanelli C., Paffoni P., Cioppa A., Rubino P., de Carlo M., Petronio A. S., Naccarella F., Saia F., Marzocchi A., Maranga S. S., Presbitero P., Valsecchi F., Piscione F., Esposito G., Santini N. M., Tubaro M., Erglis A., Narbute I., Kavoliuniene A., Zaliunas R., Navickas R., Luckute D., Subkovas E., Wagner D., Vermeer F., Lousberg A., Fransen H., Breeman A., Tebbe H., De Boer M. J., van der Wal M., Vos J., Leenders C. M., Veerhoek M. J., Jansen C., Bijl M., Koppelaar C., den Linden V., Brons R., Widdershofen J. W. M. G., Broers H., Kontny F., Jonzon M., Wodniecki J., Tomasik A., Trusz-Gluza M., Nowak S., Ruzyllo W., Deptuch T., Marques J., Matias F., Madeira H., Oliveira J., Sargento L., Ionac A., Dragulescu I. S., Mut-Vitcu B., Maximov D., Dorobantu M., Apetrei E., Niculescu R., Petrescu V., Bucsa A., Deleanu D., Bucharest, Benedek I. S., Hintea T., Aronov D., Tikhomirova E., Kranjec I., Prokselj K., Kanic V., Sepetoglu A., Aytekin S., Aytekin V., Catakoglu A. B., Parlar H., Tufekcioglu S., Ozyedek Z., Baltali M., Kiziltan D., Vukovic M., Neskovic A. N., Cardiology, Lenzen, M. J., Scholte Op Reimer, W. J. M., Pedersen, S. S., Boersma, E., Maier, W., Widimsky, P., Simoons, M. L., Mercado, N. F., Wijns, W., Bertrand, M., Meier, B., Sechtem, U., Sergeant, P., Stahle, E., Unger, F., Manini, M., Bramley, C., Laforest, V., Taylor, C., Del Gaiso, S., Huber, K., De Backer, G., Sirakova, V., Cerbak, R., Thayssen, P., Lehto, S., Blanc, J. -J., Delahaye, F., Kobulia, B., Zeymer, U., Cokkinos, D., Karlocai, K., Graham, I., Shelley, E., Behar, S., Maggioni, A., Grabauskiene, V., Deckers, J., Asmussen, I., Stepinska, J., Goncalves, L., Mareev, V., Riecansky, I., Kenda, M. F., Alonso, A., Lopez-Sendon, J. L., Rosengren, A., Buser, P., Okay, T., Sychov, O., Fox, K., Wood, D., Crijns, H., Mcgregor, K., Mulder, B., Priori, S., Ryden, L., Tavazzi, L., Vahanian, A., Vardas, P., Sarkisyan, K., Glogar, H. D., Frick, M., Pachinger, O., Zwick, R., Vrints, C., Van Hertbruggen, E., Vercammen, M., Sysmans, T., Schroeder, E., Domange, J., De Pril, H., De Vriese, J., Van Hecke, T., Legrand, V., Gillon, M. -F., Richardy, M., Doneux, P., Petrov, I., Jorgova, J., Starcevic, B., Eeckhout, E., Berger, A., Prudent, V., Camenzind, E., Masson, N., Zambartas, C., Kleanthous, H., Stellova, B., Aschermann, M., Simek, S., Kautzner, J., Karmazin, V., Svab, P., Indrak, J., Branny, M., Hladilova, K., Kala, P., Cappelen, H., Jensen, L. O., Gitt, A., Gehrke, K., am Rhein, L., Erbel, R., Gutersohn, A., Eggebrecht, H., Al Khani, M., Rosenberger, A., Vogelsberg, H., Klepzig, H., Schmidt, A., Silber, S., Mau, B., Leuner, C., Czyborra, K., Reuschling, C., Muno, E., Nauheim, B., Kleber, F., Rux, S., Saad, A., Elabady, M., Beiras, A. C., Fernandez, J. S., del Arno, F. N., Romo, A. I., Fernandez, J. M. C., Mayoreal, A. R., Rebanal, F. J. R., de la Borbolla, M. G., Chaparro, M., Brotons, C., Miralda, C. P., Vila i Perez, S. I., Moris, C., Aviles, F. F., de la Fuente Galan, L., Vinuela, P. T., de Torres, F. M., Mora, J., Rodriguez, I. S., Bustamante, I. P., Fernandez, P. L. S., Torrent, J. L. D., Diez Gil, J. L., Perpinan, J., Motilla, V. P., Juango, M. S. A., Berjon-Reyero, J., Moreno, R. M., Guerrero, J. C. F., Savolainen, K., Syvanne, M., Cohen-Solal, A., Oboa, A. -S., Bassand, J. P., Espinosa, D. P., Jouet, V., Cedex, B., Montalescot, G., Gallois, V., Daubert, J. C., Clerc, J. M., Machecourt, J., Cottin, Y., Walker, D., Holland, F., Prosser, J., Muir, L., Barber, K., Cleland, J. G. F., Cook, J., Chapichadze, Z., Christos, I. S. A., Tsiavou, N., Chrysohoou, C., Manginas, A., Terrovitis, J., Kanakakis, J., Vavuranakis, M., Drakos, S., Farmakis, T., Samara, C., Papakosta, C., Bourantas, C., Michalis, L. K., Christos, M., Foussas, S., Adamopoulou, E., Vardas, P. E., Marketou, M., Alotti, N., Basa, A. M., Vigh, A., Preda, I., Csoti, E., Keltai, M., Kerkovits, G., Hendler, A., Blatt, A., Yakov, B., Beyar, R., Shefer, A., Halon, D., Bentzvi, M., Avramovitch, N., Bakst, A., Saba, K., Cafri, C., Grosbard, A., Sheva, B., Margolis, B., Suleiman, K., Banai, S., Meerkin, D., Mosseri, M., Guita, P., Jabara, R., Jafari, J., Shitrit, D. B., Ghasan, Salameh, Brezins, M., van den Akker-Berman, L., Guetta, V., Hashomer, T., Rozenman, Y., Biagini, A., Berti, S., Ferrero, M., Colombo, A., Roccaforte, R., Milici, C., Scarpino, L., Salvi, A., Desideri, A., Sabbadin, D., Veneto, C., Galassi, A., Giuffrida, G., Rognoni, A., Vassanelli, C., Paffoni, P., Cioppa, A., Rubino, P., de Carlo, M., Petronio, A. S., Naccarella, F., Saia, F., Marzocchi, A., Maranga, S. S., Presbitero, P., Valsecchi, F., Piscione, F., Esposito, G., Santini, N. M., Tubaro, M., Erglis, A., Narbute, I., Kavoliuniene, A., Zaliunas, R., Navickas, R., Luckute, D., Subkovas, E., Wagner, D., Vermeer, F., Lousberg, A., Fransen, H., Breeman, A., Tebbe, H., De Boer, M. J., van der Wal, M., Vos, J., Leenders, C. M., Veerhoek, M. J., Jansen, C., Bijl, M., Koppelaar, C., den Linden, V., Brons, R., Widdershofen, J. W. M. G., Broers, H., Kontny, F., Jonzon, M., Wodniecki, J., Tomasik, A., Trusz-Gluza, M., Nowak, S., Ruzyllo, W., Deptuch, T., Marques, J., Matias, F., Madeira, H., Oliveira, J., Sargento, L., Ionac, A., Dragulescu, I. S., Mut-Vitcu, B., Maximov, D., Dorobantu, M., Apetrei, E., Niculescu, R., Petrescu, V., Bucsa, A., Deleanu, D., Bucharest, Benedek, I. S., Hintea, T., Aronov, D., Tikhomirova, E., Kranjec, I., Prokselj, K., Kanic, V., Sepetoglu, A., Aytekin, S., Aytekin, V., Catakoglu, A. B., Parlar, H., Tufekcioglu, S., Ozyedek, Z., Baltali, M., Kiziltan, D., Vukovic, M., and Neskovic, A. N.
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Male ,medicine.medical_specialty ,Epidemiology ,medicine.medical_treatment ,Health Status ,Coronary Artery Disease ,Revascularization ,Coronary artery disease ,Cohort Studies ,Risk Factors ,Surveys and Questionnaires ,medicine ,Myocardial Revascularization ,Surveys and Questionnaire ,Humans ,Prospective Studies ,Prospective cohort study ,Aged ,business.industry ,Risk Factor ,Mortality rate ,Confounding ,Middle Aged ,medicine.disease ,Surgery ,Europe ,Prospective Studie ,Treatment Outcome ,Emergency medicine ,Population study ,Female ,Cohort Studie ,Cardiology and Cardiovascular Medicine ,business ,Human ,Cohort study - Abstract
Objective: Self-perceived health status may be helpful in identifying patients at high risk for adverse outcomes. The Euro Heart Survey on Coronary Revascularization (EHS-CR) provided an opportunity to explore whether impaired health status was a predictor of 1-year mortality in patients with coronary artery disease (CAD) undergoing angiographic procedures. Methods: Data from the EHS-CR that included 5619 patients from 31 member countries of the European Society of Cardiology were used. Inclusion criteria for the current study were completion of a self-report measure of health status, the EuroQol Questionnaire (EQ-5D) at discharge and information on 1-year follow-up, resulting in a study population of 3786 patients. Results: The 1-year mortality was 3.2% (n = 120). Survivors reported fewer problems on the five dimensions of the EQ-5D as compared with non-survivors. A broad range of potential confounders were adjusted for, which reached a p
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- 2006
31. Patients enrolled in coronary intervention trials are not representative of patients in clinical practice: results from the Euro Heart Survey on Coronary Revascularization
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Hordijk-Trion M., Lenzen M., Wijns W., De Jaegere P., Simoons M. L., Scholte Op Reimer W. J. M., Bertrand M. E., Mercado N., Boersma E., Maier W., Meier B., Moris C., Piscione F., Sechtem U., Sergeant P., Stahle E., Vos J., Widimsky P., Unger F., Manini M., Bramley C., Laforest V., Taylor C., Del Gaiso S., Huber K., De Backer G., Sirakova V., Cerbak R., Thayssen P., Lehto S., Blanc J. -J., Delahaye F., Kobulia B., Zeymer U., Cokkinos D., Karlocai K., Graham I., Shelley E., Behar S., Maggioni A., Grabauskiene V., Deckers J., Asmussen I., Stepinska J., Goncalves L., Mareev V., Riecansky I., Kenda M. F., Alonso A., Lopez-Sendon J. L., Rosengren A., Buser P., Okay T., Sychov O., Fox K., Wood D., Crijns H., McGregor K., Mulder B., Priori S., Ryden L., Tavazzi L., Vahanian A., Vardas P., Sarkisyan K., Glogar H. D., Frick M., Pachinger O., Zwick R., Vrints C., Van Hertbruggen E., Vercammen M., Sysmans T., Schroeder E., Domange J., De Pril H., De Vriese J., Van Hecke T., Legrand V., Gillon M. -F., Richardy M., Doneux P., Petrov I., Jorgova J., Starcevic B., Eeckhout E., Berger A., Prudent V., Camenzind E., Masson N., Zambartas C., Kleanthous H., Stellova B., Aschermann M., Simek S., Kautzner J., Karmazin V., Svab P., Indrak J., Branny M., Hladilova K., Kala P., Cappelen H., Jensen L. O., Gitt A., Gehrke K., am Rhein L., Erbel R., Gutersohn A., Eggebrecht H., Al Khani M., Rosenberger A., Vogelsberg H., Klepzig H., Schmidt A., Silber S., Mau B., Leuner C., Czyborra K., Reuschling C., Muno E., Nauheim B., Kleber F., Rux S., Saad A., Elabady M., Beiras A. C., Fernandez J. S., del Arno F. N., Romo A. I., Fernandez J. M. C., Mayoreal A. R., Rebanal F. J. R., de la Borbolla M. G., Chaparro M., Brotons C., Miralda C. P., Vila i Perez S. I., Aviles F. F., de la Fuente Galan L., Vinuela P. T., de Torres F. M., Mora J., Rodriguez I. S., Bustamante I. P., Fernandez P. L. S., Torrent J. L. D., Gil J. L. D., Perpinan J., Motilla V. P., Juango M. S. A., Berjon-Reyero J., Moreno R. M., Guerrero J. C. F., Savolainen K., Syvanne M., Cohen-Solal A., Oboa A. -S., Bassand J. P., Espinosa D. P., Jouet V., Cedex B., Montalescot G., Gallois V., Daubert J. C., Clerc J. M., Machecourt J., Cottin Y., Walker D., Holland F., Prosser J., Muir L., Barber K., Cleland J. G. F., Cook J., Chapichadze Z., Christos I. S. A., Tsiavou N., Chrysohoou C., Manginas A., Terrovitis J., Kanakakis J., Vavuranakis M., Drakos S., Farmakis T., Samara C., Papakosta C., Bourantas C., Michalis L. K., Christos M., Foussas S., Adamopoulou E., Marketou M., Alotti N., Basa A. M., Vigh A., Preda I., Csoti E., Keltai M., Kerkovits G., Hendler A., Blatt A., Yakov B., Beyar R., Shefer A., Halon D., Bentzvi M., Avramovitch N., Bakst A., Saba K., Cafri C., Grosbard A., Sheva B., Margolis B., Suleiman K., Banai S., Meerkin D., Mosseri M., Guita P., Jabara R., Jafari J., Shitrit D. B., Ghasan D., Salameh D., Brezins M., van den Akker-Berman L., Guetta V., Hashomer T., Rozenman Y., Biagini A., Berti S., Ferrero M., Colombo A., Roccaforte R., Milici C., Scarpino L., Salvi A., Desideri A., Sabbadin D., Veneto C., Galassi A., Giuffrida G., Rognoni A., Vassanelli C., Paffoni P., Cioppa A., Rubino P., de Carlo M., Petronio A. S., Naccarella F., Saia F., Marzocchi A., Maranga S. S., Presbitero P., Valsecchi F., Esposito G., Santini N. M., Tubaro M., Erglis A., Narbute I., Kavoliuniene A., Zaliunas R., Navickas R., Luckute D., Subkovas E., Wagner D., Vermeer F., Lousberg A., Fransen H., Breeman A., Tebbe H., De Boer M. J., van der Wal M., Leenders C. M., Veerhoek M. J., Jansen C., Bijl M., Koppelaar C., den Linden V., Brons R., Widdershofen J. W. M. G., Broers H., Kontny F., Jonzon M., Wodniecki J., Tomasik A., Trusz-Gluza M., Nowak S., Ruzyllo W., Deptuch T., Marques J., Matias F., Madeira H., Oliveira J., Sargento L., Ionac A., Dragulescu I. S., Mut-Vitcu B., Maximov D., Dorobantu M., Apetrei E., Niculescu R., Petrescu V., Bucsa A., Deleanu D., Bucharest, Benedek I. S., Hintea T., Aronov D., Tikhomirova E., Kranjec I., Prokselj K., Kanic V., Sepetoglu A., Aytekin S., Aytekin V., Catakoglu A. B., Parlar H., Tufekcioglu S., Ozyedek Z., Baltali M., Kiziltan, Vukovic M., Neskovic A. N., Cardiology, Hordijk-Trion, M., Lenzen, M., Wijns, W., De Jaegere, P., Simoons, M. L., Scholte Op Reimer, W. J. M., Bertrand, M. E., Mercado, N., Boersma, E., Maier, W., Meier, B., Moris, C., Piscione, F., Sechtem, U., Sergeant, P., Stahle, E., Vos, J., Widimsky, P., Unger, F., Manini, M., Bramley, C., Laforest, V., Taylor, C., Del Gaiso, S., Huber, K., De Backer, G., Sirakova, V., Cerbak, R., Thayssen, P., Lehto, S., Blanc, J. -J., Delahaye, F., Kobulia, B., Zeymer, U., Cokkinos, D., Karlocai, K., Graham, I., Shelley, E., Behar, S., Maggioni, A., Grabauskiene, V., Deckers, J., Asmussen, I., Stepinska, J., Goncalves, L., Mareev, V., Riecansky, I., Kenda, M. F., Alonso, A., Lopez-Sendon, J. L., Rosengren, A., Buser, P., Okay, T., Sychov, O., Fox, K., Wood, D., Crijns, H., Mcgregor, K., Mulder, B., Priori, S., Ryden, L., Tavazzi, L., Vahanian, A., Vardas, P., Sarkisyan, K., Glogar, H. D., Frick, M., Pachinger, O., Zwick, R., Vrints, C., Van Hertbruggen, E., Vercammen, M., Sysmans, T., Schroeder, E., Domange, J., De Pril, H., De Vriese, J., Van Hecke, T., Legrand, V., Gillon, M. -F., Richardy, M., Doneux, P., Petrov, I., Jorgova, J., Starcevic, B., Eeckhout, E., Berger, A., Prudent, V., Camenzind, E., Masson, N., Zambartas, C., Kleanthous, H., Stellova, B., Aschermann, M., Simek, S., Kautzner, J., Karmazin, V., Svab, P., Indrak, J., Branny, M., Hladilova, K., Kala, P., Cappelen, H., Jensen, L. O., Gitt, A., Gehrke, K., am Rhein, L., Erbel, R., Gutersohn, A., Eggebrecht, H., Al Khani, M., Rosenberger, A., Vogelsberg, H., Klepzig, H., Schmidt, A., Silber, S., Mau, B., Leuner, C., Czyborra, K., Reuschling, C., Muno, E., Nauheim, B., Kleber, F., Rux, S., Saad, A., Elabady, M., Beiras, A. C., Fernandez, J. S., del Arno, F. N., Romo, A. I., Fernandez, J. M. C., Mayoreal, A. R., Rebanal, F. J. R., de la Borbolla, M. G., Chaparro, M., Brotons, C., Miralda, C. P., Vila i Perez, S. I., Aviles, F. F., de la Fuente Galan, L., Vinuela, P. T., de Torres, F. M., Mora, J., Rodriguez, I. S., Bustamante, I. P., Fernandez, P. L. S., Torrent, J. L. D., Gil, J. L. D., Perpinan, J., Motilla, V. P., Juango, M. S. A., Berjon-Reyero, J., Moreno, R. M., Guerrero, J. C. F., Savolainen, K., Syvanne, M., Cohen-Solal, A., Oboa, A. -S., Bassand, J. P., Espinosa, D. P., Jouet, V., Cedex, B., Montalescot, G., Gallois, V., Daubert, J. C., Clerc, J. M., Machecourt, J., Cottin, Y., Walker, D., Holland, F., Prosser, J., Muir, L., Barber, K., Cleland, J. G. F., Cook, J., Chapichadze, Z., Christos, I. S. A., Tsiavou, N., Chrysohoou, C., Manginas, A., Terrovitis, J., Kanakakis, J., Vavuranakis, M., Drakos, S., Farmakis, T., Samara, C., Papakosta, C., Bourantas, C., Michalis, L. K., Christos, M., Foussas, S., Adamopoulou, E., Marketou, M., Alotti, N., Basa, A. M., Vigh, A., Preda, I., Csoti, E., Keltai, M., Kerkovits, G., Hendler, A., Blatt, A., Yakov, B., Beyar, R., Shefer, A., Halon, D., Bentzvi, M., Avramovitch, N., Bakst, A., Saba, K., Cafri, C., Grosbard, A., Sheva, B., Margolis, B., Suleiman, K., Banai, S., Meerkin, D., Mosseri, M., Guita, P., Jabara, R., Jafari, J., Shitrit, D. B., Ghasan, D., Salameh, D., Brezins, M., van den Akker-Berman, L., Guetta, V., Hashomer, T., Rozenman, Y., Biagini, A., Berti, S., Ferrero, M., Colombo, A., Roccaforte, R., Milici, C., Scarpino, L., Salvi, A., Desideri, A., Sabbadin, D., Veneto, C., Galassi, A., Giuffrida, G., Rognoni, A., Vassanelli, C., Paffoni, P., Cioppa, A., Rubino, P., de Carlo, M., Petronio, A. S., Naccarella, F., Saia, F., Marzocchi, A., Maranga, S. S., Presbitero, P., Valsecchi, F., Esposito, G., Santini, N. M., Tubaro, M., Erglis, A., Narbute, I., Kavoliuniene, A., Zaliunas, R., Navickas, R., Luckute, D., Subkovas, E., Wagner, D., Vermeer, F., Lousberg, A., Fransen, H., Breeman, A., Tebbe, H., De Boer, M. J., van der Wal, M., Leenders, C. M., Veerhoek, M. J., Jansen, C., Bijl, M., Koppelaar, C., den Linden, V., Brons, R., Widdershofen, J. W. M. G., Broers, H., Kontny, F., Jonzon, M., Wodniecki, J., Tomasik, A., Trusz-Gluza, M., Nowak, S., Ruzyllo, W., Deptuch, T., Marques, J., Matias, F., Madeira, H., Oliveira, J., Sargento, L., Ionac, A., Dragulescu, I. S., Mut-Vitcu, B., Maximov, D., Dorobantu, M., Apetrei, E., Niculescu, R., Petrescu, V., Bucsa, A., Deleanu, D., Bucharest, Benedek, I. S., Hintea, T., Aronov, D., Tikhomirova, E., Kranjec, I., Prokselj, K., Kanic, V., Sepetoglu, A., Aytekin, S., Aytekin, V., Catakoglu, A. B., Parlar, H., Tufekcioglu, S., Ozyedek, Z., Baltali, M., Kiziltan, Vukovic, M., and Neskovic, A. N.
- Subjects
Male ,medicine.medical_specialty ,Randomization ,medicine.medical_treatment ,Euro Heart Survey ,Coronary Artery Disease ,Revascularization ,law.invention ,Coronary artery disease ,Randomized controlled trial ,law ,Internal medicine ,Angioplasty ,medicine ,Humans ,cardiovascular diseases ,Angioplasty, Balloon, Coronary ,Coronary Artery Bypass ,CABG ,Aged ,Randomized Controlled Trials as Topic ,business.industry ,Coronary Artery Bypa ,Patient Selection ,PCI ,Health Survey ,Middle Aged ,medicine.disease ,Health Surveys ,Surgery ,Clinical trial ,Stenosis ,surgical procedures, operative ,Clinical Trials, Phase III as Topic ,Conventional PCI ,Female ,Cardiology and Cardiovascular Medicine ,business ,Human - Abstract
Aims: Revascularization in patients with coronary artery disease changed over the last two decades, favouring the number of patients treated by means of percutaneous coronary interventions (PCI) when compared with coronary artery bypass grafting (CABG). Many randomized controlled trials (RCTs) have been performed to compare these two competing revascularization techniques. Because of the strict enrolment criteria of RCTs in which highly selected patients are recruited, the applicability of the results may be limited in clinical practice. The current study evaluates to what extent patients in clinical practice were similar to those who participated in RCTs comparing PCI with CABG. Methods and results: Clinical characteristics and 1-year outcome of 4713 patients enrolled in the Euro Heart Survey on Coronary Revascularization were compared with 8647 patients who participated in 14 major RCTs, comparing PCI with CABG. In addition, we analysed which proportion of survey patients would have disqualified for trial participation (n = 3033, 64%), aiming at identifying differences between trial-eligible and trial-ineligible survey patients. In general, important differences were observed between trial participants and survey patients. Patients in clinical practice were older, more often had comorbid conditions, single-vessel disease, and left main stem stenosis when compared with trial participants. Almost identical differences were observed between trial-eligible and trial-ineligible survey patients. In clinical practice, PCI was the treatment of choice, even in patients who were trial-ineligible (46% PCI, 26% CABG, 28% medical). PCI remained the preferred treatment option in patients with multi-vessel disease (57% in trial-eligible and 40% in trial-ineligible patients, respectively, P < 0.001); yet, the risk profile of patients treated by PCI was better than that for patients treated either by CABG or by medical therapy. In the RCTs, there was no mortality difference between PCI and CABG. In clinical practice, however, we observed 1-year unadjusted survival benefit for PCI vs. CABG (2.9 vs. 5.4%, P < 0.001). Survival benefit was only observed in trial-ineligible patients (3.3 vs. 6.2%, P < 0.001). Conclusion: Many patients in clinical practice were not represented in RCTs. Moreover, only 36% of these patients were considered eligible for participating in a trial comparing PCI with CABG. We demonstrated that RCTs included younger patients with a better cardiovascular risk profile when compared with patients in everyday clinical practice. This study highlights the disparity between patients in clinical practice and patients in whom the studies that provide the evidence for treatment guidelines are performed. © The European Society of Cardiology 2006. All rights reserved.
- Published
- 2006
32. Modeling stent deployment in realistic arterial segment geometries: the effect of the plaque composition
- Author
-
Karanasiou, G. S., Sakellarios, A. I., Tripoliti, E. E., Petrakis, E. G. M., Zervakis, M. E., Migliavacca, Francesco, Dubini, GABRIELE ANGELO, Dordoni, Elena, Michalis, L. . K., and Fotiadis, D. I.
- Published
- 2013
33. A Quasi-Lumped Model for the Peripheral Distortion of the Arterial Pulse
- Author
-
Voltairas, P. A., Charalambopoulos, A., Fotiadis, D. I., and Michalis, L. K.
- Subjects
navier-stokes equations ,fluid-structure interaction ,wave propagation ,vascular disease ,shear-stress ,wave-propagation ,klein-gordon equation ,experimental validation ,viscoelastic behavior ,clinical-data ,blood-flow ,arterial pulse modeling ,fluids ,pulsatile flow ,viscoelasticity ,mechanics - Abstract
As blood circulates through the arterial tree, the flow and pressure pulse distort. Principal factors to this distortion are reflections form arterial bifurcations and the viscous character of the flow of the blood. Both of them are expounded in the literature and included in our analysis. The nonlinearities of inertial effects are usually taken into account in numerical simulations, based on Navier-Stokes like equations. Nevertheless, there isn't any qualitative, analytical formula, which examines the role of blood's inertia on the distortion of the pulse. We derive such an analytical nonlinear formula. It emanates from a generalized Bernoulli's equation for an an-harmonic, linear, viscoelastic, Maxwell fluid flow in a linear, viscoelastic, Kelvin-Voigt, thin, cylindrical vessel. We report that close to the heart, convection effects related to the change in the magnitude of the velocity of blood dominate the alteration of the shape of the pressure pulse, while at remote sites of the vascular tree, convection of vorticity, related to the change in the direction of the velocity of blood with respect to a mean axial flow, prevails. A quantitative comparison between the an-harmonic theory and related pressure measurements is also performed. Mathematical Biosciences and Engineering
- Published
- 2012
34. Fusion of optical coherence tomography and coronary angiography - In vivo assessment of shear stress in plaque rupture
- Author
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Bourantas, C. V., Papafaklis, M. I., Naka, K. K., Tsakanikas, V. D., Lysitsas, D. N., Alamgir, F. M., Fotiadis, D. I., and Michalis, L. K.
- Subjects
3d reconstruction ,optical coherence tomography ,computational flow dynamics ,vulnerable plaque ,intravascular ultrasound - Abstract
Int J Cardiol
- Published
- 2012
35. Increased Vascular Inflammation in Early Menopausal Women Is Associated with Hot Flush Severity
- Author
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Bechlioulis, A., Naka, K. K., Kalantaridou, S. N., Kaponis, A., Papanikolaou, O., Vezyraki, P., Kolettis, T. M., Vlahos, A. P., Gartzonika, K., Mavridis, A., and Michalis, L. K.
- Abstract
Context:Menopause has been related to an increased atherosclerotic risk. Presence and severity of hot flushes in menopausal women have been associated with impaired endothelial function and advanced subclinical atherosclerosis.Objective:The objective of the study was to evaluate the effect of menopausal transition on vascular inflammation indices and investigate the association of hot flush severity with these indices in early menopausal women.Design, Setting, and Participants:This was a cross-sectional study that included 120 early menopausal women (age range 42-55 yr
- Published
- 2012
36. Drug-eluting stent restenosis: effect of drug type, release kinetics, hemodynamics and coating strategy
- Author
-
Papafaklis, M. I., Chatzizisis, Y. S., Naka, K. K., Giannoglou, G. D., and Michalis, L. K.
- Abstract
Restenosis following stent implantation diminishes the procedure's efficacy influencing long-term clinical outcomes. Stent-based drug delivery emerged a decade ago as an effective means of reducing neointimal hyperplasia by providing localized pharmacotherapy during the acute phase of the stent-induced injury and the ensuing pathobiological mechanisms. However, drug-eluting stent (DES) restenosis may still occur especially when stents are used in complex anatomical and clinical scenarios. A DES consists of an intravascular metallic frame and carriers which allow controlled release of active pharmaceutical agents; all these components are critical in determining drug distribution locally and thus anti-restenotic efficacy. Furthermore, dynamic flow phenomena characterizing the vascular environment, and shear stress distribution, are greatly influenced by stent implantation and play a significant role in drug deposition and bioavailability within local vascular tissue. In this review, we discuss the performance of DES and the interaction of the different DES components with the hemodynamic milieu emphasizing on the inhibition of clinical restenosis. Pharmacol Ther
- Published
- 2012
37. A highly constrained cyclic (S,S)-CDC- peptide is a potent inhibitor of carotid artery thrombosis in rabbits
- Author
-
Roussa, V. D., Stathopoulou, E. M., Papamichael, N. D., Englezopoulos, C. V., Rousouli, K. I., Trypou, P., Moussis, V., Tellis, C. C., Katsouras, C. S., Tsikaris, V., Tselepis, A. D., and Michalis, L. K.
- Subjects
antagonists ,rabbits ,platelet integrin ,binding ,receptor ,glycoprotein iib-iiia ,rgd peptides ,washed platelets ,arg ,cyclic peptides ,antiplatelet drugs ,fibrinogen gamma-chain ,carotid thrombosis ,platelet integrin alpha(iib)beta(3) ,non-rgd peptides ,monoclonal-antibody - Abstract
Inhibition of platelet aggregation is indispensable for the treatment of acute arterial thrombotic episodes. We have previously reported the synthesis of a highly constrained cyclic peptide, that incorporates the -CDC- sequence, (S,S) PSRCDCR-NH(2), which potently inhibits aggregation and fibrinogen binding to human platelets in vitro. We have tested the safety and efficacy of the peptide on the electrically induced carotid artery thrombosis experimental rabbit model. The peptide's effects on carotid blood flow, thrombus weight, in vitro and ex vivo platelet aggregation, and bleeding and hemostatic parameters were evaluated. The peptide was administered via the femoral vein. Carotid blood flow was continuously monitored for 90 min after electrical thrombus formation. The peptide, at 12 mg/kg, prevented total artery occlusion and significantly preserved carotid artery's patency compared with placebo and eptifibatide. Furthermore, (S, S) PSRCDCR-NH(2) administration at 12 mg/kg reduced thrombus weight, whereas it inhibited ex vivo ADP, arachidonic acid (AA) and collagen-induced platelet aggregation. Moreover (S,S) PSRCDCR-NH(2) at 12 mg/kg presented significantly higher inhibitory effects on AA and collagen-induced ex vivo platelet aggregation compared to eptifibatide. The peptide at any dose did not affect the coagulation cascade, the bleeding times or the hemostatic response of the animals. Thus highly constrained cyclic peptides like (S,S) PSRCDCR-NH(2) that incorporate the -CDC- motif and fulfil certain conformational criteria represent novel compounds that potently inhibit thrombus formation, ex vivo platelet aggregation and carotid artery occlusion superiorly to other non-RGD peptides, such as YMESRADR, without causing hemorrhagic complications in a rabbit model of arterial thrombosis. Platelets
- Published
- 2011
38. Effect of the insulin sensitizers metformin and pioglitazone on endothelial function in young women with polycystic ovary syndrome: a prospective randomized study
- Author
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Naka, K. K., Kalantaridou, S. N., Kravariti, M., Bechlioulis, A., Kazakos, N., Calis, K. A., Makrigiannakis, A., Katsouras, C. S., Chrousos, G. P., Tsatsoulis, A., and Michalis, L. K.
- Subjects
Adult ,Adolescent ,Metformin/*administration & dosage ,Hypoglycemic Agents/administration & dosage ,Cardiovascular Diseases/epidemiology/prevention & control ,Young Adult ,Polycystic Ovary Syndrome/*drug therapy/epidemiology/physiopathology ,Thiazolidinediones/*administration & dosage ,Risk Factors ,Humans ,Vasodilation/*drug effects/physiology ,Female ,Prospective Studies ,Endothelium, Vascular/*drug effects/physiology ,Brachial Artery/physiology ,Insulin Resistance/physiology - Abstract
OBJECTIVE: To compare the effect of two different insulin sensitizers, metformin and pioglitazone, on endothelial function in women with polycystic ovary syndrome (PCOS). DESIGN: Prospective randomized study. SETTING: University Hospital endocrinology outpatient clinic. PATIENT(S): Young women with PCOS (aged 23.3+/-4.9 years). INTERVENTION(S): Patients were assigned randomly to no treatment (n=14), metformin 850 mg two times per day (n=15), and pioglitazone 30 mg daily (n=14) for 6 months. Healthy age- and body mass index-matched women served as controls (n=14). MAIN OUTCOME MEASURE(S): Brachial artery flow-mediated dilation was studied at baseline and 6 months. RESULT(S): Women with PCOS had higher insulin resistance and hyperandrogenism indices and lower flow-mediated dilation compared with controls. The three groups of women with PCOS did not differ at baseline. No differences were observed at follow-up in women who received no treatment. Metformin and pioglitazone improved flow-mediated dilation to a similar extent, restoring it to normal values at 6 months. Both insulin sensitizers induced favorable changes in insulin resistance and hyperandrogenism indices in women with PCOS. Independent predictors of flow-mediated dilation improvement at 6 months were treatment with insulin sensitizers and reduction in insulin resistance. CONCLUSION(S): In young women with PCOS, treatment with metformin or pioglitazone for 6 months induces a similar beneficial effect on endothelial function; this may be partially attributed to an improvement in insulin resistance. Further research is needed to investigate whether treatment with insulin sensitizers in women with PCOS also reduces cardiovascular risk. Fertil Steril
- Published
- 2011
39. Effect of ethinylestradiol/cyproterone acetate on endothelial function in young non-obese women with polycystic ovary syndrome: a pilot study
- Author
-
Naka, K. K., Kalantaridou, S. N., Bechlioulis, A., Kravariti, M., Kazakos, N., Katsouras, C. S., Tsatsoulis, A., and Michalis, L. K.
- Subjects
Adult ,Cyproterone Acetate/pharmacology/*therapeutic use ,Adolescent ,Pilot Projects ,Ethinyl Estradiol/pharmacology/*therapeutic use ,Androgen Antagonists/pharmacology/*therapeutic use ,Young Adult ,Estrogens/pharmacology/*therapeutic use ,Humans ,Regression Analysis ,Drug Therapy, Combination ,Female ,Prospective Studies ,Vasodilation/*drug effects ,Polycystic Ovary Syndrome/*drug therapy - Abstract
BACKGROUND: Combined oral contraceptives are used in polycystic ovary syndrome (PCOS) women for the treatment of hyperandrogenism and menstrual cycle disturbances. AIM: To assess the effect of ethinylestradiol and cyproterone acetate (EE/CA) on endothelial function in young, non-obese PCOS women in a pilot study. METHODS: Thirteen young, non-obese PCOS women (20.9 +/- 3.7 years, 23.0 +/- 4.0 kg/m(2)) received 35 mcg EE & 2 mg CA for 6 months. Fourteen age- and body mass index (BMI)-matched healthy women served as controls. Endothelial function assessed by brachial artery flow-mediated dilation (FMD), indices of hyperandrogenism, and insulin resistance were studied at baseline and 6-month follow-up. RESULTS: FMD was impaired in PCOS compared to control women (4.67 +/- 2.38% vs. 10.12 +/- 3.19%, p < 0.001), but increased significantly following EE/CA (9.99 +/- 2.11%, p < 0.001 vs. baseline), reaching normal values (p = NS vs. controls). EE/CA also significantly decreased hyperandrogenism indices and increased total and HDL cholesterol and triglycerides (p < 0.05 vs. baseline). The only independent predictor of treatment-induced FMD improvement in PCOS women was the decrease in free androgen index. CONCLUSIONS: Treatment with combination of estrogens and antiandrogens reverses endothelial dysfunction in young, non-obese PCOS women mainly via improving hyperandrogenism. Further research is needed to investigate whether this treatment may also reduce cardiovascular risk in these women. Gynecol Endocrinol
- Published
- 2011
40. Stenting of the descending thoracic aorta: a six-year single-center experience
- Author
-
Matsagkas, M. I., Kirou, I. E., Kouvelos, G., Arnaoutoglou, E. M., Papakostas, J. C., Katsouras, C., Papadopoulos, G., and Michalis, L. K.
- Subjects
Adult ,Male ,Reoperation ,Blood Vessel Prosthesis Implantation/adverse effects/*instrumentation/mortality ,Time Factors ,Adolescent ,Aorta, Thoracic/radiography/*surgery ,Endovascular Procedures/adverse effects/*instrumentation/mortality ,Kaplan-Meier Estimate ,Prosthesis Design ,Risk Assessment ,Aortic Diseases/mortality/radiography/*surgery ,Young Adult ,Risk Factors ,Blood Vessel Prosthesis ,Humans ,Hospital Mortality ,Aged ,Retrospective Studies ,Aged, 80 and over ,Chi-Square Distribution ,Greece ,Stents ,Middle Aged ,Treatment Outcome ,Aortography/methods ,Female ,Postoperative Complications/etiology ,Tomography, X-Ray Computed - Abstract
OBJECTIVES: The aim of this study was to review the six-year results of the endovascular repair of descending thoracic aortic pathologies, reporting the early perioperative outcomes as well as the mid-term follow-up of the treated patients. METHODS: Fifty-five consecutive patients who underwent endovascular repair for thoracic aortic pathology (32 aneurysms, 17 acute thoracic aortic syndromes, and six traumatic aortic ruptures) during a six-year period were retrospectively reviewed. From these patients, 30 (54.5%) were treated electively and 25 (45.5%) on an emergency basis. In eight cases (14.5%) there was a need for left subclavian artery orifice overstenting. In seven patients (12.7%) an abdominal aortic lesion was simultaneously treated, while three more patients (5.5%) had previously had their abdominal aortic aneurysm repaired. RESULTS: The primary technical success was 92.7%. Seven patients (12.7%) underwent some operation related complication, while postoperative complications occurred in five patients (9.1%), namely four myocardial infarctions, one acute respiratory distress syndrome and two delayed parapareses resulting in an overall incidence of neurological complications of 3.6%. The combined 30-day and in-hospital mortality was 9.1%, exclusively related to patients treated emergently (P = 0.01). In a mean follow-up period of 34 months there were six deaths, and the overall cumulative survival at four years was estimated at 72.6%. Only one type II endoleak was observed one month after the procedure and it spontaneously disappeared 18 months later. CONCLUSIONS: The endovascular repair of descending thoracic aortic pathologies seems to be a well-established method, with favorable morbidity and mortality rates, at least for 30 days and in the mid-term. Taking into account the potential of a wide application of the endovascular technique in many vascular centers, stenting of the thoracic aorta might offer an overall better solution for patients suffering from these devastating pathologies. Interact Cardiovasc Thorac Surg
- Published
- 2011
41. A quasi-lumped model for the peripheral distortion of the arterial press
- Author
-
Voltairas, P. A., Charalambopoulos, A., Fotiadis, C., and Michalis, L. K.
- Subjects
Arterial pulse modeling ,fluid-structure interaction ,wave propagation ,Klein-Gordon equation ,vascular disease ,viscoelasticity - Abstract
As blood circulates through the arterial tree, the flow and pressure pulse distort. Principal factors to this distortion are reflections form arterial bifurcations and the viscous character of the flow of the blood. Both of them are expounded in the literature and included in our analysis. The nonlinearities of inertial effects are usually taken into account in numerical simulations, based on Navier-Stokes like equations. Nevertheless, there isn't any qualitative, analytical formula, which examines the role of blood's inertia on the distortion of the pulse. We derive such an analytical nonlinear formula. It emanates from a generalized Bernoulli's equation for an an-harmonic, linear, viscoelastic, Maxwell fluid flow in a linear, viscoelastic, Kelvin-Voigt, thin, cylindrical vessel. We report that close to the heart, convection effects related to the change in the magnitude of the velocity of blood dominate the alteration of the shape of the pressure pulse, while at remote sites of the vascular tree, convection of vorticity, related to the change in the direction of the velocity of blood with respect to a mean axial flow, prevails. A quantitative comparison between the an-harmonic theory and related pressure measurements is also performed. Mathematical Biosciences and Engineering
- Published
- 2011
42. Multiscale - Patient-Specific Artery and Atherogenesis Models
- Author
-
Siogkas, P., Sakellarios, A., Exarchos, T. P., Athanasiou, L. S., Karvounis, E., Stefanou, K., Fotiou, E., Fotiadis, D. I., Naka, K. K., Michalis, L. K., Filipovic, N., and Parodi, O.
- Subjects
3-d image reconstruction ,reconstruction ,blood flow dynamics ,bifurcation ,atherosclerosis ,plaque progression ,mri - Abstract
In this work, we present a platform for the development of multiscale patient-specific artery and atherogenesis models. The platform, called ARTool, integrates technologies of 3-D image reconstruction from various image modalities, blood flow and biological models of mass transfer, plaque characterization, and plaque growth. Patient images are acquired for the development of the 3-D model of the patient specific arteries. Then, blood flow is modeled within the arterial models for the calculation of the wall shear stress distribution (WSS). WSS is combined with other patient-specific parameters for the development of the plaque progression models. Real-time simulation can be performed for same cases in grid environment. The platform is evaluated using both animal and human data. Ieee Transactions on Biomedical Engineering
- Published
- 2011
43. Anterior aortic reimplantation of anomalous left coronary artery from the pulmonary artery (ALCAPA) originating from the nonfacing sinus in an adult
- Author
-
Sfyridis, P. G., Lytrivi, I. D., Kirvassilis, G. V., Papagiannis, J. K., Michalis, L. K., and Sarris, G. E.
- Subjects
Adult ,Blood Vessel Prosthesis Implantation ,Anastomosis, Surgical ,Pulmonary Artery/*abnormalities/*surgery ,Humans ,Female ,Coronary Vessel Anomalies/complications/*surgery ,Coronary Vessels/*surgery ,Aorta/*surgery ,Vascular Surgical Procedures ,Heart Arrest - Abstract
We report successful repair of a rare type of anomalous origin left main coronary artery from the nonfacing pulmonary artery sinus in an adult patient presenting with cardiac arrest as first symptom. Intraoperative findings and surgical technique are discussed. J Card Surg
- Published
- 2010
44. Clinical indications for intravascular ultrasound imaging
- Author
-
Bourantas, C. V., Naka, K. K., Garg, S., Thackray, S., Papadopoulos, D., Alamgir, F. M., Hoye, A., and Michalis, L. K.
- Subjects
Image Enhancement/*methods ,Endovascular Procedures/*methods ,Heart Catheterization/*methods ,Coronary Artery Disease/*ultrasonography ,Humans ,Coronary Vessels/*ultrasonography - Abstract
Intravascular ultrasound (IVUS) is a catheter-based imaging modality, which provides high resolution cross-sectional images of the coronary arteries. Unlike angiography, which displays only the opacified luminal silhouette, IVUS permits imaging of both the lumen and vessel wall and allows characterization of the type of the plaque. Although IVUS provides accurate quantitative and qualitative information regarding the lumen and outer vessel wall, it is not routinely used during coronary angiography or in angioplasty procedures because the risk to benefit ratio (additional expense, procedural time, certain degree of risk, and complication versus improvement in the outcome) does not justify routine utilization. Nevertheless, there are situations where IVUS is extremely useful tool both for diagnosis and management so the aim of this review is to summarize the indications for IVUS imaging in the contemporary clinical practice. Echocardiography
- Published
- 2010
45. The cyclic non-RGD peptide (S,S) PSRCDCR-NH2 inhibits thrombus formation more potently than heparin and aspirin in an experimental carotid artery thrombosis in rabbits
- Author
-
Papamichael, N. D., Stathopoulou, E. M., Roussa, V. D., Englezopoulos, C. V., Moussis, V., Tsikaris, V., Katsouras, C. S., Naka, K. K., Telepis, A. D., and Michalis, L. K.
- Abstract
Eur Heart J
- Published
- 2010
46. Improved 'cut-down' technique for transvenous pacemaker lead implantation
- Author
-
Kolettis, T. M., Lysitsas, D. N., Apostolidis, D., Baltogiannis, G. G., Sourla, E., and Michalis, L. K.
- Subjects
Electrodes, Implanted ,Humans ,Pacemaker, Artificial ,Venous Cutdown/*methods ,Axillary Vein/surgery ,Subclavian Vein/surgery ,Prosthesis Implantation/*methods - Abstract
AIMS: We improved the cut-down approach aiming at minimizing the subclavian/axillary vein puncture during implantation of permanent pacemaker leads. METHODS AND RESULTS: We incorporated previously reported refinements of the cut-down approach, i.e. the use of a hydrophilic guidewire when direct lead insertion failed and cannulation of retro-pectoral veins in cases of insufficient calliper of the cephalic vein. In addition, we introduced two further techniques, namely the simultaneous use of two guidewires and the use of stiff angiography guidewires. The efficacy of this integrated 'no-puncture' strategy was assessed in the first consecutive 200 patients and was compared with the 'standard' approach in an equal number of consecutive preceding implantations. Puncture was required more often (P < 0.0001) in the 'standard'-approach group (40/200; 20.0%). The 'no-puncture' policy was successful in 192/200 (96%) of implantations over a course of 40 months with absence of major complications. This was due to more frequent (P < 0.0001) use of hydrophilic guidewires (49.0% vs. 9.5% of cases), as well as due to cannulation of retro-pectoral veins (3.5%), use of a second guidewire (16.0%) and use of stiff guidewires (7.0%). CONCLUSION: The improved cut-down approach obviates subclavian/axillary puncture in the vast majority of cases and improves the safety of pacemaker implantation. Europace
- Published
- 2010
47. The Effect of Shear Stress on Neointimal Response Following Sirolimus- and Paclitaxel-Eluting Stent Implantation Compared With Bare-Metal Stents in Humans
- Author
-
Papafaklis, M. I., Bourantas, C. V., Theodorakis, P. E., Katsouras, C. S., Naka, K. K., Fotiadis, D. I., and Michalis, L. K.
- Subjects
3d reconstruction ,human coronary-arteries ,trial ,drug-eluting stent(s) ,intravascular ultrasound analysis ,in-vivo ,shear stress ,paclitaxel ,restenosis ,neointimal thickness ,sirolimus ,cell proliferation ,histopathology ,atherosclerosis ,diabetes-mellitus - Abstract
Objectives We aimed to explore the relationship of neointimal thickness (NT) to shear stress (SS) after implantation of sirolimus-eluting stents (SES) and paclitaxel-eluting stents (PES) compared with bare-metal stents (BMS). We then tested the hypothesis that drug elution attenuates the SS effect. Background Neointimal thickness after BMS implantation has been associated with SS; pertinent data for drug-eluting stents (DES) are limited. Methods Three-dimensional coronary artery and stent reconstruction was performed in 30 patients at 6-month follow-up after SES (n = 10), PES (n = 10), or BMS (n = 10) implantation. Baseline SS at the stent surface was calculated using computational fluid dynamics and NT at follow-up was computed in 3-dimensional space. Results Neointimal thickness was lower in DES versus BMS (0.03 +/- 0.07 mm vs. 0.16 +/- 0.08 mm, p < 0.001) and maximum NT was reduced in SES versus PES (0.33 +/- 0.13 mm vs. 0.46 +/- 0.13 mm, p = 0.025). In the total population, both SS (slope: -0.05 mm/Pa, p < 0.001) and DES (coefficient for DES vs. BMS: -0.17 mm, p = 0.003) were independent predictors of NT. Subgroup analysis demonstrated a significant negative relationship of NT to SS in PES (slope: -0.05 mm/Pa, p = 0.016) and BMS (slope: -0.05 mm/Pa, p = 0.001). Sirolimus elution significantly attenuated the effect of SS on NT (interaction coefficient for SES vs. BMS: 0.04 mm/Pa, p = 0.023), whereas the SS effect remained unchanged in PES (interaction coefficient for PES vs. BMS: 0.01 mm/Pa, p = 0.71). Conclusions Neointimal thickness is significantly correlated (inversely) to SS in PES as in BMS. Sirolimus elution abrogates the SS effect on the neointimal response following stent implantation, whereas the SS effect is unchanged in PES. (J Am Coll Cardiol Intv 2010;3:1181-9) (C) 2010 by the American College of Cardiology Foundation Jacc-Cardiovascular Interventions
- Published
- 2010
48. Effect Of A Synthetic Peptide Corresponding To Residues 313-320 Of The Aiib Integrin Subunit N Carotid Artery Thrombosis In Rabbits
- Author
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Tsikaris, E., Moussis, V., Papamichael, N. D., Roussa, V. D., Tsironis, L. D., Kotsia, A. P., Stanica, R. M., Katsouras, C. S., Tselepis, A. D., and Michalis, L. K.
- Subjects
alpha(iib)-subunit ,binding ,alpha(iib)beta(3) - Abstract
Journal of Peptide Science
- Published
- 2010
49. Endothelial Function, But Not Carotid Intima-Media Thickness, Is Affected Early in Menopause and Is Associated with Severity of Hot Flushes
- Author
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Bechlioulis, A., Kalantaridou, S. N., Naka, K. K., Chatzikyriakidou, A., Calis, K. A., Makrigiannakis, A., Papanikolaou, O., Kaponis, A., Katsouras, C., Georgiou, I., Chrousos, G. P., and Michalis, L. K.
- Subjects
gene polymorphisms ,hormone-therapy ,disease ,dysfunction ,cardiovascular risk-factors ,estrogen-receptor-alpha ,postmenopausal women ,heart ,vasomotor function ,myocardial-infarction - Abstract
Context: The effect of early menopause on indices of vascular function has been little studied. Objective: The objective of the study was to investigate the effect of early menopause on indices of subclinical atherosclerosis and identify predictors of those indices in early menopausal women. Design, Setting, and Participants: This was a cross-sectional study that included 120 early menopausal women (age range 42-55 yr, C and rs9340799 A-->G) and ER beta (rs4986938 A-->G) polymorphisms were studied in menopausal women. Results: FMD was significantly lower in early menopausal women compared with controls (5.43 +/- 2.53 vs. 8.74 +/- 3.17%, P < 0.001), whereas IMT did not differ between groups (P > 0.8). Severity of hot flushes was the most important independent predictor for FMD (P < 0.001) in menopausal women. Women with moderate/severe/very severe hot flushes had impaired FMD in contrast to women with no/mild hot flushes or controls. Women with no/mild hot flushes did not differ compared with controls. Age and systolic blood pressure were the main determinants of IMT (both P = 0.004). ER polymorphisms were not associated with vascular parameters. Conclusions: Impairment of endothelial function is present in the early menopausal years, whereas carotid IMT is not affected. Severity of hot flushes is the main determinant of endothelial dysfunction in early menopausal women. The studied ER polymorphisms do not offer important information on vascular health in early menopause. (J Clin Endocrinol Metab 95: 1199-1206, 2010) Journal of Clinical Endocrinology & Metabolism
- Published
- 2010
50. A Highly Constrained Cyclic (S,S)-Cdc- Peptide Is A Potent Inhibitor Of Carotid Artery Thrombosis In Rabbits
- Author
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Tsikaris, E., Moussis, V., Roussa, V. D., Stathopoulou, E. M., Papamichael, N. D., Englezopoulos, C. V., Trypou, P., Tellis, C. C., Katsouras, C. S., Tselepis, A. D., and Michalis, L. K.
- Abstract
Journal of Peptide Science
- Published
- 2010
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