Détermination de l'impédance acoustique de matériaux absorbants en écoulement par méthode inverse et mesure LDV

La réduction des nuisances sonores est un enjeu permanent pour les acteurs de l aéronautique. L optimisation de la réduction de bruit apportée par les traitements acoustiques tapissant la nacelle des réacteurs turbofan passe par une caractérisation précise des matériaux employés dans l environnement aéroacoustique d utilisation, qui met en jeu un écoulement rasant de vitesse importante combiné à de forts niveaux sonores. L objectif de cette thèse est de développer une méthode inverse pour la détermination de l impédance acoustique de liners soumis à un écoulement rasant, basée sur des mesures non intrusives du champ de vitesse acoustique au-dessus du matériau par Vélocimétrie Laser Doppler (LDV). L impédance de liner est obtenue par minimisation de l écart entre le champ de vitesse acoustique mesuré et le champ simulé numériquement en résolvant les équations d Euler linéarisées bidimensionnelles harmoniques, discrétisées par un schéma Galerkin discontinu. Le gradient de la fonction objectif minimisée est calculé via la résolution, à chaque itération, des équations directes et adjointes. Une première étape de validation du solveur est effectuée sur des cas-tests académiques, puis sur des cas expérimentaux impliquant des mesures de pression acoustique en paroi rigide opposée au liner. Dans un second temps, la méthode est appliquée à des mesures de vitesse acoustique obtenues par LDV dans le banc B2A de l ONERA en l absence d écoulement. La dernière étape consiste à prendre en compte l effet d un écoulement rasant de profil cisaillé. Les impédances identifiées à partir de mesures LDV en présence d écoulement ont notamment permis de gagner en compréhension sur les phénomènes d absorption intervenant dans le banc B2A.While aircraft noise constraints become increasingly stringent, efficient duct treatment of turbofan engines requires an accurate knowledge of liner impedance with grazing flow at high acoustic levels. This thesis aims at developing an impedance eduction method in the presence of grazing flow. The inverse process is based on acoustic velocity fields acquired by Laser Doppler Velocimetry (LDV) above the liner. The liner acoustic impedance is obtained by minimization of the distance between the measured acoustic velocity field and the simulated one. Computations rely on the resolution of the 2D linearized Euler equations in the harmonic domain, spatially discretized by a discontinuous Galerkin scheme. The gradient of the objective function is achieved by the resolution, at each iteration on the liner impedance, of the direct and adjoint equations. The solver is first validated on academic test cases, then on experimental results of acoustic pressure measurements at the rigid wall opposite the liner. Secondly the method is applied to acoustic velocity measurements obtained by LDV above the liner without flow, in the ONERA B2A test bench. The last step consists in taking into account the effects of a sheared grazing flow. The impedances educed from LDV measurements in the presence of flow namely allowed to gain insight into the absorption phenomena occuring in the B2A test bench.TOULOUSE-INSA-Bib. electronique (315559905) / SudocSudocFranceF

ONERA-NASA Cooperative Effort on Liner Impedance Eduction

As part of a cooperation between ONERA and NASA, the liner impedance eduction methods developed by the two research centers are compared. The NASA technique relies on an objective function built on acoustic pressure measurements located on the wall opposite the test liner, and the propagation code solves the convected Helmholtz equation in uniform ow using a finite element method that implements a continuous Galerkin discretization. The ONERA method uses an objective function based either on wall acoustic pressure or on acoustic velocity acquired above the liner by Laser Doppler Anemometry, and the propagation code solves the linearized Euler equations by a discontinuous Galerkin discretization. Two acoustic liners are tested in both ONERA and NASA ow ducts and the measured data are treated with the corresponding impedance eduction method. The first liner is a wire mesh facesheet mounted onto a honeycomb core, designed to be linear with respect to incident sound pressure level and to grazing ow velocity. The second one is a conventional, nonlinear, perforate-over-honeycomb single layer liner. Configurations without and with ow are considered. For the nonlinear liner, the comparison of liner impedance educed by NASA and ONERA shows a sensitivity to the experimental conditions, namely to the nature of the source and to the sample width

Détermination de l'impédance acoustique de matériaux absorbants en écoulement par méthode inverse et mesures LDV

While aircraft noise constraints become increasingly stringent, efficient duct treatment of turbofan engines requires an accurate knowledge of liner impedance with grazing flow at high acoustic levels. This thesis aims at developing an impedance eduction method in the presence of grazing flow. The inverse process is based on acoustic velocity fields acquired by Laser Doppler Velocimetry (LDV) above the liner. The liner acoustic impedance is obtained by minimization of the distance between the measured acoustic velocity field and the simulated one. Computations rely on the resolution of the 2D linearized Euler equations in the harmonic domain, spatially discretized by a discontinuous Galerkin scheme. The gradient of the objective function is achieved by the resolution, at each iteration on the liner impedance, of the direct and adjoint equations. The solver is first validated on academic test cases, then on experimental results of acoustic pressure measurements at the rigid wall opposite the liner. Secondly the method is applied to acoustic velocity measurements obtained by LDV above the liner without flow, in the ONERA B2A test bench. The last step consists in taking into account the effects of a sheared grazing flow. The impedances educed from LDV measurements in the presence of flow namely allowed to gain insight into the absorption phenomena occuring in the B2A test bench.La réduction des nuisances sonores est un enjeu permanent pour les acteurs de l'aéronautique. L'optimisation de la réduction de bruit apportée par les traitements acoustiques tapissant la nacelle des réacteurs turbofan passe par une caractérisation précise des matériaux employés dans l'environnement aéroacoustique d'utilisation, qui met en jeu un écoulement rasant de vitesse importante combiné à de forts niveaux sonores. L'objectif de cette thèse est de développer une méthode inverse pour la détermination de l'impédance acoustique de liners soumis à un écoulement rasant, basée sur des mesures non intrusives du champ de vitesse acoustique au-dessus du matériau par Vélocimétrie Laser Doppler (LDV). L'impédance de liner est obtenue par minimisation de l'écart entre le champ de vitesse acoustique mesuré et le champ simulé numériquement en résolvant les équations d'Euler linéarisées bidimensionnelles harmoniques, discrétisées par un schéma Galerkin discontinu. Le gradient de la fonction objectif minimisée est calculé via la résolution, à chaque itération, des équations directes et adjointes. Une première étape de validation du solveur est effectuée sur des cas-tests académiques, puis sur des cas expérimentaux impliquant des mesures de pression acoustique en paroi rigide opposée au liner. Dans un second temps, la méthode est appliquée à des mesures de vitesse acoustique obtenues par LDV dans le banc B2A de l'ONERA en l'absence d'écoulement. La dernière étape consiste à prendre en compte l'effet d'un écoulement rasant de profil cisaillé. Les impédances identifiées à partir de mesures LDV en présence d'écoulement ont notamment permis de gagner en compréhension sur les phénomènes d'absorption intervenant dans le banc B2A

LDV-based impedance eduction technique for acoustic liners in the presence of flow

La réduction des nuisances sonores est un enjeu permanent pour les acteurs de l’aéronautique. L’optimisation de la réduction de bruit apportée par les traitements acoustiques tapissant la nacelle des réacteurs turbofan passe par une caractérisation précise des matériaux employés dans l’environnement aéroacoustique d’utilisation, qui met en jeu un écoulement rasant de vitesse importante combiné à de forts niveaux sonores. L’objectif de cette thèse est de développer une méthode inverse pour la détermination de l’impédance acoustique de liners soumis à un écoulement rasant, basée sur des mesures non intrusives du champ de vitesse acoustique au-dessus du matériau par Vélocimétrie Laser Doppler (LDV). L’impédance de liner est obtenue par minimisation de l’écart entre le champ de vitesse acoustique mesuré et le champ simulé numériquement en résolvant les équations d’Euler linéarisées bidimensionnelles harmoniques, discrétisées par un schéma Galerkin discontinu. Le gradient de la fonction objectif minimisée est calculé via la résolution, à chaque itération, des équations directes et adjointes. Une première étape de validation du solveur est effectuée sur des cas-tests académiques, puis sur des cas expérimentaux impliquant des mesures de pression acoustique en paroi rigide opposée au liner. Dans un second temps, la méthode est appliquée à des mesures de vitesse acoustique obtenues par LDV dans le banc B2A de l’ONERA en l’absence d’écoulement. La dernière étape consiste à prendre en compte l’effet d’un écoulement rasant de profil cisaillé. Les impédances identifiées à partir de mesures LDV en présence d’écoulement ont notamment permis de gagner en compréhension sur les phénomènes d’absorption intervenant dans le banc B2A.While aircraft noise constraints become increasingly stringent, efficient duct treatment of turbofan engines requires an accurate knowledge of liner impedance with grazing flow at high acoustic levels. This thesis aims at developing an impedance eduction method in the presence of grazing flow. The inverse process is based on acoustic velocity fields acquired by Laser Doppler Velocimetry (LDV) above the liner. The liner acoustic impedance is obtained by minimization of the distance between the measured acoustic velocity field and the simulated one. Computations rely on the resolution of the 2D linearized Euler equations in the harmonic domain, spatially discretized by a discontinuous Galerkin scheme. The gradient of the objective function is achieved by the resolution, at each iteration on the liner impedance, of the direct and adjoint equations. The solver is first validated on academic test cases, then on experimental results of acoustic pressure measurements at the rigid wall opposite the liner. Secondly the method is applied to acoustic velocity measurements obtained by LDV above the liner without flow, in the ONERA B2A test bench. The last step consists in taking into account the effects of a sheared grazing flow. The impedances educed from LDV measurements in the presence of flow namely allowed to gain insight into the absorption phenomena occuring in the B2A test bench

Correction to: Surgery and outcome of infective endocarditis in octogenarians: prospective data from the ESC EORP EURO-ENDO registry (Infection, (2022), 50, 5, (1191-1202), 10.1007/s15010-022-01792-0)

In this article the “EURO-ENDO Investigators group” member U. Y. Sinan was incorrectly written as U.S. Yasar. The original article has been corrected

Surgery and outcome of infective endocarditis in octogenarians: prospective data from the ESC EORP EURO-ENDO registry

none912Purpose: High mortality and a limited performance of valvular surgery are typical features of infective endocarditis (IE) in octogenarians, even though surgical treatment is a major determinant of a successful outcome in IE. Methods: Data from the prospective multicentre ESC EORP EURO-ENDO registry were used to assess the prognostic role of valvular surgery depending on age. Results: As compared to < 80 yo patients, ≥ 80 yo had lower rates of theoretical indication for valvular surgery (49.1% vs. 60.3%, p < 0.001), of surgery performed (37.0% vs. 75.5%, p < 0.001), and a higher in-hospital (25.9% vs. 15.8%, p < 0.001) and 1-year mortality (41.3% vs. 22.2%, p < 0.001). By multivariable analysis, age per se was not predictive of 1-year mortality, but lack of surgical procedures when indicated was strongly predictive (HR 2.98 [2.43-3.66]). By propensity analysis, 304 ≥ 80 yo were matched to 608 < 80 yo patients. Propensity analysis confirmed the lower rate of indication for valvular surgery (51.3% vs. 57.2%, p = 0.031) and of surgery performed (35.3% vs. 68.4%, p < 0.0001) in ≥ 80 yo. Overall mortality remained higher in ≥ 80 yo (in-hospital: HR 1.50[1.06-2.13], p = 0.0210; 1-yr: HR 1.58[1.21-2.05], p = 0.0006), but was not different from that of < 80 yo among those who had surgery (in-hospital: 19.7% vs. 20.0%, p = 0.4236; 1-year: 27.3% vs. 25.5%, p = 0.7176). Conclusion: Although mortality rates are consistently higher in ≥ 80 yo patients than in < 80 yo patients in the general population, mortality of surgery in ≥ 80 yo is similar to < 80 yo after matching patients. These results confirm the importance of a better recognition of surgical indication and of an increased performance of surgery in ≥ 80 yo patients.nonePazdernik, Michal; Iung, Bernard; Mutlu, Bulent; Alla, François; Riezebos, Robert; Kong, William; Nunes, Maria Carmo Pereira; Pierard, Luc; Srdanovic, Ilija; Yamada, Hirotsugu; De Martino, Andrea; Miglioranza, Marcelo Haertel; Magne, Julien; Piper, Cornelia; Laroche, Cécile; Maggioni, Aldo P; Lancellotti, Patrizio; Habib, Gilbert; Selton-Suty, Christine, EURO-ENDO Investigators group: R Ronderos, G Avegliano, P Fernandez Oses, E Filipini, I Granada, A Iribarren, M Mahia, F Nacinovich, S Ressi, R Obregon, M Bangher, J Dho, L Cartasegna, M L Plastino, V Novas, C Shigel, G Reyes, M De Santos, N Gastaldello, M Granillo Fernandez, M Potito, G Streitenberger, P Velazco, J H Casabé, C Cortes, E Guevara, F Salmo, M Seijo, F Weidinger, M Heger, R Brooks, C Stöllberger, C-Y Ho, L Perschy, L Puskas, G Goliasch, C Binder, R Rosenhek, M Schneider, M-P Winter, E Hoffer, M Melissopoulou, E Lecoq, D Legrand, S Jacquet, M Massoz, P Lancellotti, L Pierard, R Dulgheru, S Marchetta, C D Emal, C Oury, B Cosyns, S Droogmans, D Kerkhove, A Motoc, D Plein, B Roosens, L Soens, C Weytjens, I Lemoine, I Rodrigus, B Paelinck, B Amsel, P Unger, D Konopnicki, C Beauloye, A Pasquet, S Pierard, D Vancraeynest, J L Vanoverschelde, F Sinnaeve, J L Andrade, A C Tude Rodrigues, K Staszko, R Dos Santos Monteiro, M H Miglioranza, D L Shuha, M Alcantara, V Cravo, L Fazzio, A Felix, M Iso, C Musa, A P Siciliano, F Villaca Filho, J Braga, A Rodrigues, R Silva, F Vilela, D Rodrigues, L Silva, S Morhy, C Fischer, R Silva, M Vieira, T Afonso, J Abreu, S N Falcao, V Moises, A Gouvea, G João, F Mancuso, C Silva, A C Souza, C S Abboud, R Bellio de Mattos Barretto, A Ramos, R Arnoni, J E Assef, D J Della Togna, D Le Bihan, L Miglioli, A P Romero Oliveira, R Tadeu Magro Kroll, D Cortez, C L Gelape, M D C Peirira Nunes, T C De Abreu Ferrari, K-L Chan, K Hay, V Le, M Page, F Poulin, C Sauve, K Serri, C Mercure, J Beaudoin, P Pibarot, I Sebag, L Rudski, G Ricafort, B Barsic, V Krajinovic, M Vargovic, J Separovic-Hanzevacki, D Lovric, V Reskovic-Luksic, J Vincelj, S Jaksic Jurinjak, V Yiannikourides, M Ioannides, C Kyriakou, C Pofaides, V Masoura, K Yiangou, J Pudich, A Linhart, M Siranec, J Marek, K Blechova, M Kamenik, M Pazdernik, R Pelouch, Z Coufal, M Mikulica, M Griva, E Jancova, M Mikulcova, M Taborsky, J Precek, M Jecmenova, J Latal, J Widimsky, T Butta, S Machacek, R Vancata, J Spinar, M Holicka, F Pow Chon Long, N Anzules, A Bajana Carpio, G Largacha, E Penaherrera, D Moreira, E Mahfouz, E Elsafty, A Soliman, Y Zayed, J Aboulenein, M Abdel-Hay, A Almaghraby, M Abdelnaby, M Ahmed, B Hammad, Y Saleh, H Zahran, O Elgebaly, A Saad, M Ali, A Zeid, R El Sharkawy, M Meshaal, A Al Kholy, R Doss, D Osama, H Rizk, A Elmogy, M Mishriky, P Assayag, S El Hatimi, Saint- E Botelho-Nevers, S Campisi, J-F Fuzellier, A Gagneux-Brunon, R Pierrard, C Tulane, M Detoc, T Mehalla, D Boutoille, O Al Habash, N Asseray-Madani, C Biron, J Brochard, J Caillon, C Cueff, T Le Tourneau, A S Lecompte, R Lecomte, M Lefebvre, M M Magali Michel, S Pattier, S Delarue, M Le Bras, J Orain, J-F Faucher, V Aboyans, A Beeharry, H Durox, M Lacoste, J Magne, D Mohty, A David, V Pradel, V Sierra, A Neykova, B Bettayeb, S Elkentaoui, B Tzvetkov, G Landry, C Strady, K Ainine, S Baumard, C Brasselet, C Tassigny, V Valente-Pires, M Lefranc, B Hoen, B Lefevre, E Curlier, C Callier, N Fourcade, Y Jobic, S Ansard, R Le Berre, P Le Roux, F Le Ven, M-C Pouliquen, G Prat, F Bouchart, A Savoure, C Alarcon, C Chapuzet, I Gueit, C Tribouilloy, Y Bohbot, F Peugnet, M Gun, B Iung, X Duval, X Lescure, E Ilic-Habensus, N Sadoul, C Selton-Suty, F Alla, E Chevalier, F Goehringer, O Huttin, R Garcia, V Le Marcis, P Tattevin, E Donal, E Flecher, M Revest, G Habib, S Hubert, J-P Casalta, F Gouriet, F Arregle, S Cammilleri, L Tessonnier, A Riberi, C Chirouze, K Bouiller, A-S Brunel, D Fournier, L Hustache-Mathieu, T Klopfenstein, J Moreau, P Lim, L Oliver, J Ternacle, A Moussafeur, P Chavanet, L Piroth, M Buisson, S Mahy, C Martins, A Salmon-Rousseau, S Gohier, C Piper, J Börgermann, D Guckel, D Horstkotte, B Brockmeier, E Winkelmann, A Hagendorff, D Grey, G Nickenig, R Schueler, C Öztürk, E Stöhr, C Hamm, T Walther, R Brandt, A-C Frühauf, C T Hartung, C Hellner, C Wild, M Becker, S Hamada, W Kaestner, K Stangl, F Knebel, G Baldenhofer, A Brecht, H Dreger, C Isner, F Pfafflin, M Stegemann, R Zahn, B Fraiture, C Kilkowski, A-K Karcher, S Klinger, H Tolksdorf, D Tousoulis, C Aggeli, G Sarri, S Sideris, E Venieri, G Athanassopoulos, D Tsiapras, I Armenis, A Koutsiari, G Floros, C Grassos, S Dragasis, L Rallidis, C Varlamos, L Michalis, K Naka, A Bechlioulis, A Kotsia, L Lakkas, K Pappas, C Papadopoulos, S Kiokas, A Lioni, S Misailidou, J Barbetseas, M Bonou, C Kapelios, I Tomprou, K Zerva, A Manolis, E Hamodraka, D Athanasiou, G Haralambidis, L Poulimenos, H Samaras, A Nagy, A Bartykowszki, E Gara, S Sengupta, K Mungulmare, R Kasliwal, M Bansal, A Bhan, S Ranjan, M Kyavar, M Maleki, F Noohi Bezanjani, A Sadeghpour, A Alizadehasl, S Boudagh, A Ghavidel, P Moradnejad, H R Pasha, B Ghadrdoost, D Gilon, J Strahilevitz, S Israel, M Wanounou, C d'Agostino, P Colonna, L De Michele, F Fumarola, M Stante, N Marchionni, V Scheggi, B Alterini, S Del Pace, P Stefano, C Sparano, L P Badano, D Muraru, N Ruozi, R Tenaglia, U Limbruno, A Cresti, P Baratta, M Solari, C Giannattasio, A Moreo, B De Chiara, B Lopez Montero, F Musca, C A Orcese, F Panzeri, C F Russo, F Spano, O Alfieri, M De Bonis, E Agricola, E Busnardo, S Carletti, B Castiglioni, S Chiappetta, B Del Forno, D Ferrara, M Guffanti, G Iaci, E Lapenna, T Nisi, C Oltolini, U Pajoro, R Pasciuta, M Ripa, P Scarpellini, C Tassan Din, R Meneghin, D Schiavi, F Piscione, R Citro, R M Benvenga, L Greco, C Prota, I Radano, L Soriente, M Bellino, D Di Vece, F Santini, A Salsano, G M Olivieri, F Turrini, R Messora, S 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T Staub, L Jacobs-Orazi, C Mallia Azzopardi, R G Xuereb, T Piscopo, D Borg, R Casha, J Farrugia, M Fenech, E Pllaha, C Vella, K Yamagata, L Grib, E Raevschi, A Grejdieru, G Balan, I Cardaniuc, L Cardaniuc, V Corcea, A Feodorovici, V Gaina, L Girbu, P Jimbei, D Kravcenco, E Panfile, E Prisacari, E Samohvalov, S Samohvalov, N Sceglova, I Benesco, V Marian, N Sumarga, M Mirocevic, B Bozovic, N Bulatovic, P Lakovic, L Music, J Roos-Hesselink, R Budde, T Gamela, A Wahadat, O Kamp, T Meijers, J P Van Melle, V M Deursen, H Crijns, S Bekkers, E Cheriex, M Gilbers, B Kietselaer, C Knackstedt, R Lorusso, S Schalla, S Streukens, S Chamuleau, M-J Cramer, A Teske, T Van der Spoel, A Wind, O Liesbek, J Lokhorst, H Van Heusden, W Tanis, I Van der Bilt, J Vriend, H De Lange-van Bruggen, E Karijodikoro, R Riezebos, E van Dongen, J Schoep, V Stolk, O Axler, F Baumann, S Lebras, T Edvardsen, J T Offstad, J O Beitnes, T Helle-Valle, H Skulstad, R Skardal, N Qamar, S Furnaz, B Ahmed, M H Butt, M F 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Putnikovic, A Neskovic, A Dimic, B Ivanovic, S Matic, D Trifunovic, J Petrovic, D Kosevic, P Dabic, P Milojevic, I Petrovic, I Stojanovic, I Srdanovic, M Kovacevic, A Redzek, M Stefanovic, S Susak, L Velicki, A Vulin, T C Yeo, W K F Kong, K K Poh, I Vilacosta, M Abd El- Nasser, C Ferrera, C Olmos, F Calvo Iglesias, E Blanco-Gonzalez, M Bravo Amaro, A N Germinas, E Lopez-Rodriguez, J Lugo Adan, P Pazos-Lopez, M Pereira Loureiro, M T Perez, S Raposeiras-Roubin, S Rasheed Yas, M-M Suarez-Varela, F Vasallo Vidal, D Garcia-Dorado, A Sambola, N Fernandez-Hidalgo, T Gonzalez-Alujas, J Lozano, O Maisterra, N Pizzi, R Rios, P Tornos, A Bayes-Genis, L Pedro Botet, N Vallejo, E Berastegui, C Llibre, L Mateu, R Nunez, D Quesada, D Bosch Portell, J Aboal Vinas, X Albert Bertran, R Brugada Tarradellas, P Loma-Osorio Ricon, C Tiron de Llano, M A Arnau, A Bel, M Blanes, A Osa, M Anguita, F Carrasco, J Castillo, J L Zamorano, J L Moya Mur, M Alvaro, C Fernandez-Golfin, J M Monteagudo, E Navas Elorza, M 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Hancock, J Klein, R Rajani, M P Ursi, R Dworakowski, A Fife, J Breeze, M Browne-Morgan, M Gunning, S Streather, F Asch, M Zemedkun, B Alyavi, J UzokovMichal, Pazdernik; Bernard, Iung; Bulent, Mutlu; François, Alla; Robert, Riezebos; William, Kong; Maria Carmo Pereira, Nunes; Luc, Pierard; Ilija, Srdanovic; Hirotsugu, Yamada; Andrea, De Martino; Marcelo Haertel, Miglioranza; Julien, Magne; Cornelia, Piper; Cécile, Laroche; Aldo P, Maggioni; Patrizio, Lancellotti; Gilbert, Habib; Christine, Selton-Suty; R Ronderos, EURO-ENDO Investigators group:; Avegliano, G; Fernandez Oses, P; Filipini, E; Granada, I; Iribarren, A; Mahia, M; Nacinovich, F; Ressi, S; Obregon, R; Bangher, M; Dho, J; Cartasegna, L; L Plastino, M; Novas, V; Shigel, C; Reyes, G; De Santos, M; Gastaldello, N; Granillo Fernandez, M; Potito, M; Streitenberger, G; Velazco, P; H Casabé, J; Cortes, C; Guevara, E; Salmo, F; Seijo, M; Weidinger, F; Heger, M; Brooks, R; Stöllberger, C; Ho, C-Y; Perschy, L; Puskas, L; Goliasch, G; Binder, C; Rosenhek, R; Schneider, M; Winter, M-P; Hoffer, E; Melissopoulou, M; Lecoq, E; Legrand, D; Jacquet, S; Massoz, M; Lancellotti, P; Pierard, L; Dulgheru, R; Marchetta, S; D Emal, C; Oury, C; Cosyns, B; Droogmans, S; Kerkhove, D; Motoc, A; Plein, D; Roosens, B; Soens, L; Weytjens, C; Lemoine, I; Rodrigus, I; Paelinck, B; Amsel, B; Unger, P; Konopnicki, D; Beauloye, C; Pasquet, A; Pierard, S; Vancraeynest, D; L Vanoverschelde, J; Sinnaeve, F; L Andrade, J; C Tude Rodrigues, A; Staszko, K; Dos Santos Monteiro, R; H Miglioranza, M; L Shuha, D; Alcantara, M; Cravo, V; Fazzio, L; Felix, A; Iso, M; Musa, C; P Siciliano, A; Villaca Filho, F; Braga, J; Rodrigues, A; Silva, R; Vilela, F; Rodrigues, D; Silva, L; Morhy, S; Fischer, C; Silva, R; Vieira, M; Afonso, T; Abreu, J; N Falcao, S; Moises, V; Gouvea, A; João, G; Mancuso, F; Silva, C; C Souza, A; S Abboud, C; Bellio de Mattos Barretto, R; Ramos, A; Arnoni, R; E Assef, J; J Della Togna, D; Le Bihan, D; Miglioli, L; P Romero Oliveira, A; Tadeu Magro Kroll, R; Cortez, D; L Gelape, C; C Peirira Nunes, M D; C De Abreu Ferrari, T; Chan, K-L; Hay, K; Le, V; Page, M; Poulin, F; Sauve, C; Serri, K; Mercure, C; Beaudoin, J; Pibarot, P; Sebag, I; Rudski, L; Ricafort, G; Barsic, B; Krajinovic, V; Vargovic, M; Separovic-Hanzevacki, J; Lovric, D; Reskovic-Luksic, V; Vincelj, J; Jaksic Jurinjak, S; Yiannikourides, V; Ioannides, M; Kyriakou, C; Pofaides, C; Masoura, V; Yiangou, K; Pudich, J; Linhart, A; Siranec, M; Marek, J; Blechova, K; Kamenik, M; Pazdernik, M; Pelouch, R; Coufal, Z; Mikulica, M; Griva, M; Jancova, E; Mikulcova, M; Taborsky, M; Precek, J; Jecmenova, M; Latal, J; Widimsky, J; Butta, T; Machacek, S; Vancata, R; Spinar, J; Holicka, M; Pow Chon Long, F; Anzules, N; Bajana Carpio, A; Largacha, G; Penaherrera, E; Moreira, D; Mahfouz, E; Elsafty, E; Soliman, A; Zayed, Y; Aboulenein, J; Abdel-Hay, M; Almaghraby, A; Abdelnaby, M; Ahmed, M; Hammad, B; Saleh, Y; Zahran, H; Elgebaly, O; Saad, A; Ali, M; Zeid, A; El Sharkawy, R; Meshaal, M; Al Kholy, A; Doss, R; Osama, D; Rizk, H; Elmogy, A; Mishriky, M; Assayag, P; El Hatimi, S; E Botelho-Nevers, Saint-; Campisi, S; Fuzellier, J-F; Gagneux-Brunon, A; Pierrard, R; Tulane, C; Detoc, M; Mehalla, T; Boutoille, D; Al Habash, O; Asseray-Madani, N; Biron, C; Brochard, J; Caillon, J; Cueff, C; Le Tourneau, T; S Lecompte, A; Lecomte, R; Lefebvre, M; M Magali Michel, M; Pattier, S; Delarue, S; Le Bras, M; Orain, J; Faucher, J-F; Aboyans, V; Beeharry, A; Durox, H; Lacoste, M; Magne, J; Mohty, D; David, A; Pradel, V; Sierra, V; Neykova, A; Bettayeb, B; Elkentaoui, S; Tzvetkov, B; Landry, G; Strady, C; Ainine, K; Baumard, S; Brasselet, C; Tassigny, C; Valente-Pires, V; Lefranc, M; Hoen, B; Lefevre, B; Curlier, E; Callier, C; Fourcade, N; Jobic, Y; Ansard, S; Le Berre, R; Le Roux, P; Le Ven, F; Pouliquen, M-C; Prat, G; Bouchart, F; Savoure, A; Alarcon, C; Chapuzet, C; Gueit, I; Tribouilloy, C; Bohbot, Y; Peugnet, F; Gun, M; Iung, B; Duval, X; Lescure, X; Ilic-Habensus, E; Sadoul, N; Selton-Suty, C; Alla, F; Chevalier, E; Goehringer, F; Huttin, O; Garcia, R; Le Marcis, V; Tattevin, P; Donal, E; Flecher, E; Revest, M; Habib, G; Hubert, S; Casalta, J-P; Gouriet, F; Arregle, F; Cammilleri, S; Tessonnier, L; Riberi, A; Chirouze, C; Bouiller, K; Brunel, A-S; Fournier, D; Hustache-Mathieu, L; Klopfenstein, T; Moreau, J; Lim, P; Oliver, L; Ternacle, J; Moussafeur, A; Chavanet, P; Piroth, L; Buisson, M; Mahy, S; Martins, C; Salmon-Rousseau, A; Gohier, S; Piper, C; Börgermann, J; Guckel, D; Horstkotte, D; Brockmeier, B; Winkelmann, E; Hagendorff, A; Grey, D; Nickenig, G; Schueler, R; Öztürk, C; Stöhr, E; Hamm, C; Walther, T; Brandt, R; Frühauf, A-C; T Hartung, C; Hellner, C; Wild, C; Becker, M; Hamada, S; Kaestner, W; Stangl, K; Knebel, F; Baldenhofer, G; Brecht, A; Dreger, H; Isner, C; Pfafflin, F; Stegemann, M; Zahn, R; Fraiture, B; Kilkowski, C; Karcher, A-K; Klinger, S; Tolksdorf, H; Tousoulis, D; Aggeli, C; Sarri, G; Sideris, S; Venieri, E; Athanassopoulos, G; Tsiapras, D; Armenis, I; Koutsiari, A; Floros, G; Grassos, C; Dragasis, S; Rallidis, L; Varlamos, C; Michalis, L; Naka, K; Bechlioulis, A; Kotsia, A; Lakkas, L; Pappas, K; Papadopoulos, C; Kiokas, S; Lioni, A; Misailidou, S; Barbetseas, J; Bonou, M; Kapelios, C; Tomprou, I; Zerva, K; Manolis, A; Hamodraka, E; Athanasiou, D; Haralambidis, G; Poulimenos, L; Samaras, H; Nagy, A; Bartykowszki, A; Gara, E; Sengupta, S; Mungulmare, K; Kasliwal, R; Bansal, M; Bhan, A; Ranjan, S; Kyavar, M; Maleki, M; Noohi Bezanjani, F; Sadeghpour, A; Alizadehasl, A; Boudagh, S; Ghavidel, A; Moradnejad, P; R Pasha, H; Ghadrdoost, B; Gilon, D; Strahilevitz, J; Israel, S; Wanounou, M; D'Agostino, C; Colonna, P; De Michele, L; Fumarola, F; Stante, M; Marchionni, N; Scheggi, V; Alterini, B; Del Pace, S; Stefano, P; Sparano, C; P Badano, L; Muraru, D; Ruozi, N; Tenaglia, R; Limbruno, U; Cresti, A; Baratta, P; Solari, M; Giannattasio, C; Moreo, A; De Chiara, B; Lopez Montero, B; Musca, F; A Orcese, C; Panzeri, F; F Russo, C; Spano, F; Alfieri, O; De Bonis, M; Agricola, E; Busnardo, E; Carletti, S; Castiglioni, B; Chiappetta, S; Del Forno, B; Ferrara, D; Guffanti, M; Iaci, G; Lapenna, E; Nisi, T; Oltolini, C; Pajoro, U; Pasciuta, R; Ripa, M; Scarpellini, P; Tassan Din, C; Meneghin, R; Schiavi, D; Piscione, F; Citro, R; M Benvenga, R; Greco, L; Prota, C; Radano, I; Soriente, L; Bellino, M; Di Vece, D; Santini, F; Salsano, A; M Olivieri, G; Turrini, F; Messora, R; Tondi, S; Olaru, A; Agnoletto, V; Grassi, L; Leonardi, C; Sansoni, S; Del Ponte, S; M Actis Dato, G; De Martino, A; Ohte, N; Kikuchi, S; Wakami, K; Aonuma, K; Seo, Y; Ishizu, T; Machino-Ohtsuka, T; Yamamoto, M; Iida, N; Nakajima, H; Nakagawa, Y; Izumi, C; Amano, M; Miyake, M; Takahashi, K; Shiojima, I; Miyasaka, Y; Maeba, H; Suwa, Y; Taniguchi, N; Tsujimoto, S; Kitai, T; Ota, M; Yuda, S; Sasaki, S; Hagiwara, N; Yamazaki, K; Ashihara, K; Arai, K; Saitou, C; Saitou, S; Suzuki, G; Shibata, Y; Watanabe, N; Nishino, S; Ashikaga, K; Kuriyama, N; Mahara, K; Abe, K; Fujimaki, H; Okubo, T; Shitan, H; Takanashi, S; Terada, M; Yamamoto, H; Sata, M; Yamada, H; Kusunose, K; Saijo, Y; Seno, H; Yuichiro, O; Sakata, Y; Mizuno, H; Nakatani, S; Onishi, T; Sengoku, K; Sera, F; W Park, S; Eun Kyoung, K; Ga Yeon, L; Hwang, J-W; Jin-Oh, C; Park, S-J; Sang-Chol, L; Sung-A, C; Y Jang, S; Kang, D-H; Heo, R; Lee, S; Song, J-M; Jung, E; Plisiene, J; Dambrauskaite, A; Gruodyte, G; Jonkaitiene, R; Vaskelyte, J; Mizariene, V; Atkocaityte, J; Zvirblyte, R; Sow, R; Codreanu, A; L De la Vega, E C; Michaux, C; Staub, T; Jacobs-Orazi, L; Mallia Azzopardi, C; G Xuereb, R; Piscopo, T; Borg, D; Casha, R; Farrugia, J; Fenech, M; Pllaha, E; Vella, C; Yamagata, K; Grib, L; Raevschi, E; Grejdieru, A; Balan, G; Cardaniuc, I; Cardaniuc, L; Corcea, V; Feodorovici, A; Gaina, V; Girbu, L; Jimbei, P; Kravcenco, D; Panfile, E; Prisacari, E; Samohvalov, E; Samohvalov, S; Sceglova, N; Benesco, I; Marian, V; Sumarga, N; Mirocevic, M; Bozovic, B; 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Seabra, D; Branco, L; Abreu, J; Cruz, M; Galrinho, A; Moreira, R; Rio, P; T Timoteo, A; Selas, M; M Cardim, N; Carmelo, V; Duque Neves, B; Pereira, H; Cruz, I; Guerra, A; Marques, A; Pintassilg

Surgery and outcome of infective endocarditis in octogenarians: prospective data from the ESC EORP EURO-ENDO registry

Purpose: High mortality and a limited performance of valvular surgery are typical features of infective endocarditis (IE) in octogenarians, even though surgical treatment is a major determinant of a successful outcome in IE. Methods: Data from the prospective multicentre ESC EORP EURO-ENDO registry were used to assess the prognostic role of valvular surgery depending on age. Results: As compared to < 80 yo patients, ≥ 80 yo had lower rates of theoretical indication for valvular surgery (49.1% vs. 60.3%, p < 0.001), of surgery performed (37.0% vs. 75.5%, p < 0.001), and a higher in-hospital (25.9% vs. 15.8%, p < 0.001) and 1-year mortality (41.3% vs. 22.2%, p < 0.001). By multivariable analysis, age per se was not predictive of 1-year mortality, but lack of surgical procedures when indicated was strongly predictive (HR 2.98 [2.43–3.66]). By propensity analysis, 304 ≥ 80 yo were matched to 608 < 80 yo patients. Propensity analysis confirmed the lower rate of indication for valvular surgery (51.3% vs. 57.2%, p = 0.031) and of surgery performed (35.3% vs. 68.4%, p < 0.0001) in ≥ 80 yo. Overall mortality remained higher in ≥ 80 yo (in-hospital: HR 1.50[1.06–2.13], p = 0.0210; 1-yr: HR 1.58[1.21–2.05], p = 0.0006), but was not different from that of < 80 yo among those who had surgery (in-hospital: 19.7% vs. 20.0%, p = 0.4236; 1-year: 27.3% vs. 25.5%, p = 0.7176). Conclusion: Although mortality rates are consistently higher in ≥ 80 yo patients than in < 80 yo patients in the general population, mortality of surgery in ≥ 80 yo is similar to < 80 yo after matching patients. These results confirm the importance of a better recognition of surgical indication and of an increased performance of surgery in ≥ 80 yo patients

Predictors of embolism and death in left-sided infective endocarditis: the European Society of Cardiology EURObservational Research Programme European Infective Endocarditis registry

International audienceBackground and Aims Even though vegetation size in infective endocarditis (IE) has been associated with embolic events (EEs) and mortality risk, it is unclear whether vegetation size associated with these potential outcomes is different in left-sided IE (LSIE). This study aimed to seek assessing the vegetation cut-off size as predictor of EE or 30-day mortality for LSIE and to determine risk predictors of these outcomes. Methods The European Society of Cardiology EURObservational Research Programme European Infective Endocarditis is a prospective, multicentre registry including patients with definite or possible IE throughout 2016–18. Cox multivariable logistic regression analysis was performed to assess variables associated with EE or 30-day mortality. Results There were 2171 patients with LSIE (women 31.5%). Among these affected patients, 459 (21.1%) had a new EE or died in 30 days. The cut-off value of vegetation size for predicting EEs or 30-day mortality was &gt;10 mm [hazard ratio (HR) 1.38, 95% confidence interval (CI) 1.13–1.69, P = .0015]. Other adjusted predictors of risk of EE or death were as follows: EE on admission (HR 1.89, 95% CI 1.54–2.33, P &lt; .0001), history of heart failure (HR 1.53, 95% CI 1.21–1.93, P = .0004), creatinine &gt;2 mg/dL (HR 1.59, 95% CI 1.25–2.03, P = .0002), Staphylococcus aureus (HR 1.36, 95% CI 1.08–1.70, P = .008), congestive heart failure (HR 1.40, 95% CI 1.12–1.75, P = .003), presence of haemorrhagic stroke (HR 4.57, 95% CI 3.08–6.79, P &lt; .0001), alcohol abuse (HR 1.45, 95% CI 1.04–2.03, P = .03), presence of cardiogenic shock (HR 2.07, 95% CI 1.29–3.34, P = .003), and not performing left surgery (HR 1.30 95% CI 1.05–1.61, P = .016) (C-statistic = .68). Conclusions Prognosis after LSIE is determined by multiple factors, including vegetation size