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676 results on '"Boehmer, John"'

58. The effect of cardiac resynchronization without a defibrillator on morbidity and mortality: an individual-patient-data meta-analysis of COMPANION and CARE-HF

Author

Cleland, John G.F., Bristow, Michael R., Freemantle, Nicholas, Olshansk, Brian, Gras, Daniel, Saxon, Leslie, Tavazzi, Luigi, Boehmer, John, Ghio, Stefano, Feldman, Arthur M., Daubert, Jean-Claude, and deMets, David

Abstract

Background: \ud Cardiac resynchronization therapy (CRT) reduces morbidity and mortality for patients with heart failure, reduced left ventricular ejection fraction, QRS duration >130 ms and in sinus rhythm.\ud \ud Objectives: \ud To identify patient-characteristics that predict the effect, specifically, of CRT-pacemakers (CRT-P) on all-cause mortality or the composite of hospitalisation for heart failure or all-cause mortality.\ud \ud Methods: \ud An individual patient-data meta-analysis of the Comparison of Medical Therapy, Pacing, and Defibrillation in Heart Failure (COMPANION) and Cardiac Resynchronization – Heart Failure (CARE-HF) trials. Only patients assigned to CRT-P or control (n = 1738) were included in order to avoid confounding from concomitant defibrillator therapy. The influence of baseline characteristics on treatment effects was investigated.\ud \ud Results: \ud Median age was 67 (59–73) years, most patients were men (70%), 68% had a QRS duration of 150-199 ms and 80% had left bundle branch block (LBBB). Patients assigned to CRT-P had lower rates for all-cause mortality (HR 0.68 (95% CI 0.56 to 0.81; p

Published
2022

67. ASSESSMENT OF HEART SOUNDS AS PREDICTORS OF REHOSPITALIZATIONS USING A NONINVASIVE MULTIPLE SENSOR MONITORING DEVICE

Author

Ahmed, Mohammad, primary, Kumar, Prashanth Shyam, additional, Maucione, Carly, additional, Julian, Katherine, additional, Weigel, Frank, additional, Bergquist, Patrick, additional, Williams, Ryan, additional, Voleti, Navya, additional, Sturts, Adam, additional, Rai, Pratyush, additional, Ramasamy, Mouli, additional, Varadan, Venk, additional, Ali, Omaima A., additional, Varadan, Vijay K., additional, Boehmer, John P., additional, and Hajduczok, Alexander, additional

Published
2022
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68. Shared Genetic Predisposition in Peripartum and Dilated Cardiomyopathies

Author

Ware, James S., Li, Jian, Mazaika, Erica, Yasso, Christopher M., DeSouza, Tiffany, Cappola, Thomas P., Tsai, Emily J., Hilfiker-Kleiner, Denise, Kamiya, Chizuko A., Mazzarotto, Francesco, Cook, Stuart A., Halder, Indrani, Prasad, Sanjay K., Pisarcik, Jessica, Hanley-Yanez, Karen, Alharethi, Rami, Damp, Julie, Hsich, Eileen, Elkayam, Uri, Sheppard, Richard, Kealey, Angela, Alexis, Jeffrey, Ramani, Gautam, Safirstein, Jordan, Boehmer, John, Pauly, Daniel F., Wittstein, Ilan S., Thohan, Vinay, Zucker, Mark J., Liu, Peter, Gorcsan, John, III, McNamara, Dennis M., Seidman, Christine E., Seidman, Jonathan G., and Arany, Zoltan

Published
2016
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75. The cost of non-response to cardiac resynchronization therapy: characterizing heart failure events following cardiac resynchronization therapy

Author

Varma, Niraj, primary, Auricchio, Angelo, additional, Connolly, Allison T, additional, Boehmer, John, additional, Bahu, Marwan, additional, Costanzo, Maria Rosa, additional, Leonelli, Fabio, additional, Yoo, Dale, additional, Singh, Jagmeet, additional, Nabutovsky, Yelena, additional, and Gold, Michael, additional

Published
2021
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76. Genetic and Phenotypic Landscape of Peripartum Cardiomyopathy

Author

Goli, Rahul, Li, Jian, Brandimarto, Jeff, Levine, Lisa D., Riis, Valerie, McAfee, Quentin, Depalma, Steven, Haghighi, Alireza, Seidman, J. G., Seidman, Christine E., Jacoby, Daniel, Macones, George, Judge, Daniel P., Rana, Sarosh, Margulies, Kenneth B., Cappola, Thomas P., Alharethi, Rami, Damp, Julie, Hsich, Eileen, Elkayam, Uri, Sheppard, Richard, Alexis, Jeffrey D., Boehmer, John, Kamiya, Chizuko, Gustafsson, Finn, Damm, Peter, Ersbøll, Anne S., Goland, Sorel, Hilfiker-Kleiner, Denise, McNamara, Dennis M., Arany, Zolt, Goli, Rahul, Li, Jian, Brandimarto, Jeff, Levine, Lisa D., Riis, Valerie, McAfee, Quentin, Depalma, Steven, Haghighi, Alireza, Seidman, J. G., Seidman, Christine E., Jacoby, Daniel, Macones, George, Judge, Daniel P., Rana, Sarosh, Margulies, Kenneth B., Cappola, Thomas P., Alharethi, Rami, Damp, Julie, Hsich, Eileen, Elkayam, Uri, Sheppard, Richard, Alexis, Jeffrey D., Boehmer, John, Kamiya, Chizuko, Gustafsson, Finn, Damm, Peter, Ersbøll, Anne S., Goland, Sorel, Hilfiker-Kleiner, Denise, McNamara, Dennis M., and Arany, Zolt

Abstract

Background: Peripartum cardiomyopathy (PPCM) occurs in ≈1:2000 deliveries in the United States and worldwide. The genetic underpinnings of PPCM remain poorly defined. Approximately 10% of women with PPCM harbor truncating variants in TTN (TTNtvs). Whether mutations in other genes can predispose to PPCM is not known. It is also not known if the presence of TTNtvs predicts clinical presentation or outcomes. Nor is it known if the prevalence of TTNtvs differs in women with PPCM and preeclampsia, the strongest risk factor for PPCM. Methods: Women with PPCM were retrospectively identified from several US and international academic centers, and clinical information and DNA samples were acquired. Next-generation sequencing was performed on 67 genes, including TTN, and evaluated for burden of truncating and missense variants. The impact of TTNtvs on the severity of clinical presentation, and on clinical outcomes, was evaluated. Results: Four hundred sixty-nine women met inclusion criteria. Of the women with PPCM, 10.4% bore TTNtvs (odds ratio=9.4 compared with 1.2% in the reference population; Bonferroni-corrected P [P∗]=1.2×10-46). We additionally identified overrepresentation of truncating variants in FLNC (odds ratio=24.8, P∗=7.0×10-8), DSP (odds ratio=14.9, P∗=1.0×10-8), and BAG3 (odds ratio=53.1, P∗=0.02), genes not previously associated with PPCM. This profile is highly similar to that found in nonischemic dilated cardiomyopathy. Women with TTNtvs had lower left ventricular ejection fraction on presentation than did women without TTNtvs (23.5% versus 29%, P=2.5×10-4), but did not differ significantly in timing of presentation after delivery, in prevalence of preeclampsia, or in rates of clinical recovery. Conclusions: This study provides the first extensive genetic and phenotypic landscape of PPCM and demonstrates that predisposition to heart failure is an important risk factor for PPCM. The work reveals a degree of genet

Published
2021

77. Impact of Cardiac Resynchronization Therapy on Exercise Performance, Functional Capacity, and Quality of Life in Systolic Heart Failure With QRS Prolongation: COMPANION Trial Sub-Study

Author

De Marco, Teresa, Wolfel, Eugene, Feldman, Arthur M., Lowes, Brian, Higginbotham, Michael B., Ghali, Jalal K., Wagoner, Lynne, Kirlin, Philip C., Kennett, Jerry D., Goel, Satish, Saxon, Leslie A., Boehmer, John P., Mann, David, Galle, Elizabeth, Ecklund, Fred, Yong, Patrick, and Bristow, Michael R.

Published
2008
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80. Coronary blood flow responses to physiological stress in humans

Author

Momen, Afsana, Mascarenhas, Vernon, Gahremanpour, Amir, Gao, Zhaohui, Moradkhan, Raman, Kunselman, Allen, Boehmer, John P., Sinoway, Lawrence I., and Leuenberger, Urs A.

Subjects
Nervous system, Autonomic -- Properties, Stress (Physiology) -- Influence, Blood flow -- Measurement, Exercise -- Physiological aspects, Exercise -- Research, Biological sciences
Abstract

Animal reports suggest that reflex activation of cardiac sympathetic nerves can evoke coronary vasoconstriction. Conversely, physiological stress may induce coronary vasodilation to meet an increased metabolic demand. Whether the sympathetic nervous system can modulate coronary vasomotor tone in response to stress in humans is unclear. Coronary blood velocity (CBV), an index of coronary blood flow, can be measured in humans by noninvasive duplex ultrasound. We studied 11 healthy volunteers and measured beat-by-beat changes in CBV, blood pressure, and heart rate during 1) static handgrip for 20 s at 10% and 70% of maximal voluntary contraction; 2) lower body negative pressure at -10 and -30 mmHg for 3 min each; 3) cold pressor test for 90 s; and 4) hypoxia (10% [O.sub.2]), hyperoxia (100% [O.sub.2]), and hypercapnia (5% C[O.sub.2]) for 5 min each. At the higher level of handgrip, mean blood pressure increased (P < 0.001), whereas CBV did not change [P = not significant (NS)]. In addition, during lower body negative pressure, CBV decreased (P < 0.02; and P < 0.01, for -10 and -30 mmHg, respectively), whereas blood pressure did not change (P = NS). The dissociation between the responses of CBV and blood pressure to handgrip and lower body negative pressure is consistent with coronary vasoconstriction. During hypoxia, CBV increased (P < 0.02) and decreased during hyperoxia (P < 0.01), although blood pressure did not change (P = NS), suggesting coronary vasodilation during hypoxia and vasoconstriction during hyperoxia. In contrast, concordant increases in CBV and blood pressure were noted during the cold pressor test, and hypercapnia had no effects on either parameter. Thus the physiological stress known to be associated with sympathetic activation can produce coronary vasoconstriction in humans. Contrasting responses were noted during systemic hypoxia and hyperoxia where mechanisms independent of autonomic influences appear to dominate the vascular end-organ effects. exercise; hypoxia; oxygen; autonomic nervous system

Published
2009

84. Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTIC‐HF: baseline characteristics and comparison with contemporary clinical trials

Author

Teerlink, John R., Diaz, Rafael, Felker, G. Michael, McMurray, John J.V., Metra, Marco, Solomon, Scott D., Adams, Kirkwood F., Anand, Inder, Arias‐Mendoza, Alexandra, Biering‐Sørensen, Tor, Böhm, Michael, Bonderman, Diana, Cleland, John G.F., Corbalan, Ramon, Crespo‐Leiro, Maria G., Dahlström, Ulf, Echeverria Correa, Luis E., Fang, James C., Filippatos, Gerasimos, Fonseca, Cândida, Goncalvesova, Eva, Goudev, Assen R., Howlett, Jonathan G., Lanfear, David E., Lund, Mayanna, Macdonald, Peter, Mareev, Vyacheslav, Momomura, Shin‐ichi, O'Meara, Eileen, Parkhomenko, Alexander, Ponikowski, Piotr, Ramires, Felix J. A., Serpytis, Pranas, Sliwa, Karen, Spinar, Jindrich, Suter, Thomas M., Tomcsanyi, Janos, Vandekerckhove, Hans, Vinereanu, Dragos, Voors, Adriaan A., Yilmaz, Mehmet B., Zannad, Faiez, Sharpsten, Lucie, Legg, Jason C., Abbasi, Siddique A., Varin, Claire, Malik, Fady I., Kurtz, Christopher E., Besada, Diego Alejandro, Majul, Claudio Rodolfo, Bruno, Marco Raul Litvak, Sassone, Sonia, Avaca, Horacio Alberto, Rasmussen, Mariela, Aiub, Jorge Roberto, Hominal, Miguel Angel, Perna, Eduardo, Duran, Ruben Omar Garcia, Schiavi, Lilia, Marquez, Lilia Luz Lobo, Vilamajo, Oscar Alberto Gomez, Mackinnon, Ignacio, Fuente, Ricardo Alfonso Leon, Montana, Oscar Romano, Novaretto, Leonardo, Guerrero, Rodolfo Andres Ahuad, Brasca, Daniela Garcia, Prado, Aldo, Garrido, Marcelo Alejandro, Luquez, Hugo, Martinez, Diego Felipe, Nicolosi, Liliana, Parody, Maria Leonor, Zaidman, Cesar, Berra, Fernando Colombo, Ibañez, Julio, Zapata, Gerardo, Caccavo, Alberto, Colque, Roberto, Diez, Mirta, Poy, Carlos, Salomone, Oscar Alejandro, Vogel, Daniel, Bordonava, Anselmo Paulino, Fernandez, Alberto, French, John, Atherton, John, Hamilton, Andrew, Begg, Alistair, Abhayaratna, Walter, Judkins, Christopher, De Pasquale, Carmine, McKenzie, Scott, Amerena, John, Szto, Gregory, Kearney, Leighton, Zimmet, Hendrik, Sverdlov, Aaron, Beltrame, John, Korczyk, Dariusz, Sindone, Andrew, Moertl, Deddo, Huber, Kurt, Huelsmann, Martin, Ablasser, Klemens, Ebner, Christian, Siostrzonek, Peter, Drexel, Heinz, Poelzl, Gerhard, Dujardin, Karl, Dupont, Matthias, Buysschaert, Ian, Lancellotti, Patrizio, Droogne, Walter, Chouchane, Iman, Silveira, Fabio, Rassi, Salvador, Reis, Gilmar, Filho, Pedro Pimentel, Simoes, Marcus Vinicius, Braga, Joao Carlos, Giorgeto, Flavio Eduardo, Ferraz, Almir, Jaeger, Cristiano Pederneiras, Saraiva, Jose Francisco, Tognon, Alexandre, Cardoso, Juliano, Greco, Oswaldo, Paiva, Maria Sanali, Paolino, Bruno, Filho, Otavio Coelho, Maia, Lilia Nigro, Silva, Rodrigo, Canesin, Manoel, Rossi, Paulo Roberto Ferreira, Fortes, Jose Augusto Ribas, Cerci, Rodrigo Julio, Manenti, Euler Roberto Fernandes, Leaes, Paulo Ernesto, Silva Neto, Luis Beck, Souza, Weimar Kunz Barroso, Bacal, Fernando, Chaves, Renato, Ramires, Felix, Vidotti, Maria Helena, Barros e Silva, Pedro Gabriel Melo, Piegas, Leopoldo Soares, Todorov, Georgi, Tzekova, Maria, Goudev, Assen, Mincheva, Valentina, Vasilev, Ivaylo, Tisheva‐ Gospodinova, Snezhanka, Petrov, Ivo, Postadzhiyan, Arman, Velikov, Chavdar, Dimov, Bojidar, Constance, Christian, Phaneuf, Denis‐Carl, Mielniczuk, Lisa, Pandey, A Shekhar, Senaratne, Manohara, Zieroth, Shelley, Savard, Daniel, Stewart, Robert, Huynh, Thao, Giannetti, Nadia, Moe, Gordon, Bourgeois, Ronald, Ezekowitz, Justin, Hartleib, Michael, Sussex, Bruce, Babapulle, Mohan, Chehayeb, Raja, Gaudet, Daniel, McKelvie, Robert, Nguyen, Viviane, Roth, Sherryn, Gupta, Milan, Pesant, Yves, Rupka, Dennis, Bhargava, Rakesh, Costa‐Vitali, Atilio, Proulx, Guy, Vega, Mario, Potthoff, Sergio, Cid, Maria Cristina Schnettler, Sepulveda, Alex Mauricio Villablanca, Zanetti, Fernando Tomas Lanas, Gajardo, Victor Areli Saavedra, Kindel, Carlos Conejeros, Jofre, Christian Paolo Pincetti, Segarra, Jorge Leonardo Cobos, Venegas, Manuel Eduardo Rodriguez, Hidalgo, Mario Yanez, Jalaf, Margarita Gertrudis Vejar, Li, Weimin, Zhang, Jinguo, Fu, Xin, Zhang, Xuelian, Li, Dongye, Wang, Zhifang, Qu, Yanling, Zheng, Zhe, Tang, Huifang, Yang, Ping, Zhang, Yuhui, Zheng, Yang, Mi, Yafei, Huang, He, Bu, Peili, Chen, Guoqin, Chen, Jiyan, Han, Yajun, Li, Zhangquan, Ma, Shumei, Yang, Xuming, Yuan, Zuyi, Dong, Yugang, Li, Zhaoping, Mahemuti, Ailiman, Niu, Wentang, Yang, Zhenyu, Zhang, Yuqing, Sun, Yuemin, Wu, Weiheng, Liu, Feng, Yan, Jing, Li, Yinjun, Wang, Yi, Zhang, Shouyan, Zhou, Changyong, Cui, Hanbin, Li, Jianjun, Li, Tianfa, Han, Qinghua, Wei, Yu, Correa, Luis Eduardo Echeverria, Mendoza, Jose Luis Accini, Jattin, Fernando Manzur, Osorio, Wilder Castaño, Luengas, Carlos Alberto, Arroyo, Julian Alonso Coronel, Corredor, Miguel Alfredo Moncada, Giraldo, Clara Ines Saldarriaga, Lopez, Rodrigo Botero, Salazar, Dora Ines Molina, Triana, Miguel Urina, Lopez, Luis Horacio Atehortua, Rojas, Pastor Olaya, Pelaez, Sebastian Velez, Pareja, Monica Lopez, Bonfanti, Alberto Cadena, Polasek, Rostislav, Monhart, Zdenek, Sochor, Karel, Motovska, Zuzana, Belohlavek, Jan, Busak, Ladislav, Krupicka, Jiri, Tyl, Petr, Jerabek, Ondrej, Podpera, Ivo, Skrobakova, Janka, Peterka, Karel, Spacek, Rudolf, Cech, Vladimir, Kellnerova, Ivana, Nechvatal, Libor, Pozdisek, Zbynek, Houra, Marek, Kryza, Radim, Machova, Vilma, Cepelak, Michal, Stepek, David, Zeman, Kamil, Klimsa, Zdenek, Koleckar, Pavel, Schee, Alexandr, Spinarova, Lenka, Coufal, Zdenek, Jeppesen, Jorgen, Vraa, Soren, Wiggers, Henrik, Nyvad, Ole, Nielsen, Tonny, Kaiser‐Nielsen, Peter, Videbaek, Lars, Galinier, Michel, Lefebvre, Jean‐Marie, Tartiere, Jean‐Michel, De Geeter, Guillaume, Roubille, Francois, Ricci, Jean Etienne, Salvat, Muriel, Gueffet, Jean‐Pierre, Decoulx, Eric, Berdague, Philippe, Jondeau, Guillaume, Ovize, Michel, Groote, Pascal De, Donal, Erwan, Isnard, Richard, Sabatier, Rémi, Trochu, Jean Noel, Damy, Thibaud, Georges, Jean‐Louis, Rosamel, Yann, Picard, François, Aboyans, Victor, Laperche, Thierry, Mitrovic, Veselin, Taggeselle, Jens, Störk, Stefan, Ebelt, Henning, Genth‐Zotz, Sabine, Rassaf, Tienush, Duengen, Hans‐Dirk, Mittag, Marcus, Menck, Niels, Zeymer, Uwe, Haehling, Stephan, Boehm, Michael, Frankenstein, Lutz, Killat, Holger, Bourhaial, Hakima, Beug, Daniel, Horacek, Thomas, Pfister, Roman, Sandri, Marcus, Westenfeld, Ralf, Kadel, Christoph, Karvounis, Haralambos, Patsilinakos, Sotirios, Mantas, Ioannis, Karavidas, Apostolos, Giamouzis, Grigorios, Tsioufis, Konstantinos, Naka, Katerina, Tziakas, Dimitrios, Parissis, John, Styliadis, Ioannis, Barbetseas, Ioannis, Manolis, Athanasios, Kochiadakis, George, Herczeg, Bela, Nagy, Laszlo, Nyolczas, Noemi, Toth, Kalman, Merkely, Bela, Laszlo, Zoltan, Mark, Laszlo, Szakal, Imre, Papp, Andras, Bezzegh, Katalin, Lakatos, Ferenc, Hajko, Erik, Papp, Aniko, Forster, Tamas, Lupkovics, Geza, Mohacsi, Attila, Salamon, Csaba, Aradi, Daniel, Andreka, Peter, Szasz, Gyula, Zilahi, Zsolt, Kazinczy, Rita, Margonato, Alberto, Agostoni, Piergiuseppe, Fucili, Alessandro, Piovaccari, Giancarlo, Senni, Michele, Carluccio, Erberto, Bilato, Claudio, Frigerio, Maria, Indolfi, Ciro, Sinagra, Gianfranco, Brunetti, Natale Daniele, Perna, Gianpiero, Pini, Daniela, Volterrani, Maurizio, Leonardi, Sergio, Mortara, Andrea, Friz, Hernan Emilio Francisco Polo, Rossini, Roberta, Tocchetti, Carlo Gabriele, Vincenzi, Antonella, Cavallini, Claudio, Floresta, Agata Marina, Zaca, Valerio, Giudici, Vittorio, Villani, Giovanni Quinto, Higashino, Yorihiko, Oishi, Shogo, Wada, Atsuyuki, Fukuzawa, Shigeru, Onoue, Kenji, Koike, Akihiro, Koizumi, Tomomi, Masuda, Seigo, Mitsuo, Kazuhisa, Takahashi, Natsuki, Takenaka, Takashi, Tanabe, Jun, Watanabe, Naoki, Yoshida, Takeshi, Amano, Tetsuya, Ishikawa, Masahiro, Kida, Keisuke, Kubota, Toru, Nakamura, Kentaro, Sakamoto, Tomohiro, Shimomura, Mitsuhiro, Yuge, Masaru, Doi, Masayuki, Domae, Hiroshi, Ebato, Mio, Fujii, Kenshi, Fujiwara, Wakaya, Gohara, Seiichiro, Hata, Yoshiki, Kanda, Junji, Kitaoka, Hiroaki, Matsumoto, Takashi, Michishita, Ichiro, Miura, Shinichiro, Miyazaki, Tetsuro, Nakamura, Akihiro, Ogawa, Tomohiro, Okumura, Takahiro, Okumura, Yasuo, Sakai, Tetsuo, Sato, Yukihito, Shimizu, Wataru, Sugino, Hiroshi, Suzuki, Masahiro, Takagi, Atsutoshi, Takaishi, Hiroshi, Tanaka, Takahiro, Terasaki, Toshiro, Tsujimoto, Mitsuru, Ueda, Yasunori, Ujino, Keiji, Usui, Makoto, Yamamoto, Mitsutaka, Yoshikawa, Masaki, Ando, Kenji, Asakura, Masanori, Asano, Hiroshi, Fujii, Shigeru, Hara, Hisao, Inomata, Takayuki, Isshiki, Takaaki, Kadokami, Toshiaki, Kai, Hisashi, Kasai, Toshio, Kawamitsu, Katsunori, Kawasaki, Tomohiro, Koga, Tokushi, Komiyama, Nobuyuki, Maejima, Yasuhiro, Manita, Mamoru, Miyamoto, Nobuhide, Node, Koichi, Numaguchi, Kotaro, Sakata, Yasushi, Serikawa, Takeshi, Takama, Noriaki, Tatebe, Shunsuke, Ueno, Hideki, Hidaka, Takayuki, Hiroi, Shitoshi, Iseki, Harukazu, Ito, Hiroshi, Kajinami, Kouji, Kawakami, Hideo, Momiyama, Yukihiko, Mori, Masuki, Morita, Yukiko, Okishige, Kaoru, Sakagami, Satoru, Takeishi, Yasuchika, Terasawa, Akihiro, Utsu, Noriaki, Badariene, Jolita, Celutkiene, Jelena, Slapikas, Rimvydas, Jarasuniene, Dalia, Castillo, Armando Garcia, De los Rios Ibarra, Manuel Odin, Lopez, Gabriel Arturo Ramos, Llamas, Edmundo Alfredo Bayram, Esperon, Guillermo Antonio Llamas, Vazquez, Eduardo Salcido, Gonzalez, Ricardo Garcia, Leon, Jose Luis Arenas, Gonzalez, Salvador Leon, Mendoza, Maria Alexandra Arias, Rodriguez, Alicia Contreras, Machado, Gustavo Francisco Mendez, Salazar, Melchor Alpizar, Ruiz, Alberto Esteban Bazzoni, Flores, Ana Maria De Leon, Carrasco, Jose Alfredo Pagola, Araiza, Raul Reyes, Römer, Tjeerd, Remmen, Johannes, Van Eck, Jacob, Elvan, Arif, Smilde, Tom, Voors, Adriaan, Wal, Ruud, Schaap, Jeroen, Sluis, Aize, Linssen, Gerardus, Magro, Michael, Willems, Frank, Hal, John, Zwaan, Coenraad, Beelen, Driek, Boswijk, Dirk, Hermans, Walter, Van Kesteren, Henricus, Scott, Russell, Hart, Hamish, Lund, Marianne, Szczasny, Marcin, Blicharski, Tomasz, Kafara, Mariusz, Stankiewicz, Anna, Skonieczny, Grzegorz, Zabowka, Maciej, Kania, Grzegorz, Kopaczewski, Jerzy, Pawlowicz, Lidia, Spyra, Janusz, Wlodarczyk, Aleksander, Sciborski, Ryszard, Balsam, Pawel, Drozdz, Jaroslaw, Sobkowicz, Bozena, Konieczynska, Malgorzata, Lelonek, Malgorzata, Bednarkiewicz, Zbigniew, Trebacz, Jaroslaw, Jankowski, Piotr, Sidor, Mateusz, Berkowski, Piotr, Chmielak, Zbigniew, Lenartowska, Lucyna, Nessler, Jadwiga, Straburzynska‐Migaj, Ewa, Kalarus, Zbigniew, Kowalski, Robert, Kalecinska‐Krystkiewicz, Ewa, Gola, Zbigniew, Pijanowski, Zbigniew, Wozakowska‐Kaplon, Beata, Cymerman, Krzysztof, Rynkiewicz, Andrzej, Miekus, Pawel, Monteiro, Pedro, Sarmento, Pedro Morais, Almeida, Filipa, Duarte, Tatiana, Fonseca, Candida, Oliveira, Luis, Santos, Luis, Brito, Dulce, Stanciulescu, Gabriela, Spiridon, Marilena Renata, Militaru, Constantin, Podoleanu, Cristian Gheorghe, Zdrenghea, Dumitru, Popescu, Mircea Ioachim, Macarie, Cezar‐Eugen, Giuca, Alina, Mitu, Florin, Voicu, Olga‐Cristina, Dorobantu, Maria, Lighezan, Daniel, Stamate, Sorin, Bykov, Alexander, Kobalava, Zhanna, Zrazhevskiy, Konstantin, Semenova, Irina, Vishnevsky, Alexander, Shutemova, Elena, Tereschenko, Sergey, Shvarts, Yury, Barbarash, Olga, Lukyanov, Yury, Voevoda, Mikhail, Dovgolis, Svetlana, Dronov, Dmitry, Goloshchekin, Boris, Sitnikova, Maria, Ezhov, Marat, Tarasov, Nikolay, Kotelnikov, Mikhail, Kostenko, Viktor, Solovev, Oleg, Goncharov, Ivan, Myasnikov, Roman, Rafalskiy, Vladimir, Ryabov, Vyacheslav, Kosmacheva, Elena, Motylev, Igor, Nosov, Vladimir, Osipova, Irina, Salukhov, Vladimir, Belenkiy, Dmitriy, Bolshakova, Olga, Pimenov, Leonid, Shilkina, Nataliya, Kulibaba, Elena, Repin, Alexey, Timofeev, Alexander, Mitrokhin, Vladislav, Sherenkov, Alexander, Arbolishvili, Georgy, Antalik, Lubomir, Dzupina, Andrej, Fulop, Peter, Majercak, Ivan, Gonsorcik, Jozef, Vinanska, Daniela, Lenner, Egon, Lukacova, Jana, Margoczy, Roman, Smik, Rudolf, Stevlik, Jan, Uhliar, Rudolf, Burgess, Lesley, Badat, Aysha, Klug, Eric, Van Zyl, Louis, Abelson, Mark, Moodley, Rajendran, Tsabedze, Nqoba, Fourie, Nyda, Bonet, Luis Almenar, Prado, Jose Maria Arizon, Oliveira Soares, Manue Martinez‐Selles D, Villota, Julio Eduardo Nuñez, Leiro, Maria Generosa Crespo, Juanatey, Jose Ramon Gonzalez, Figal, Domingo Andres Pascual, Palomas, Juan Luis Bonilla, Perez, Sonia Mirabet, Jimenez, Juan Francisco Delgado, Padron, Antonio Lara, Diaz, Victor Alfonso Jimenez, Cubero, Javier Segovia, Paya, Vicente Eduardo Climent, Mayoral, Alejandro Recio, Fuente Galan, Luis, Doblas, Juan Jose Gomez, Freire, Ramon Bover, Peiro, Maria Teresa Blasco, Molina, Beatriz Diaz, Martinez, Laura Jordan, Vilchez, Francisco Gonzalez, Boman, Kurt, Karlstrom, Patric, Berglund, Stefan, Szabo, Barna, Peterson, Magnus, Wodlin, Peter, Lindholm, Carl‐Johan, Moccetti, Tiziano, Mueller, Christian, Suter, Thomas, Hullin, Roger, Meyer, Philippe, Noll, Georg, Yigit, Zerrin, Turgut, Okan Onur, Bekar, Lutfu, Sahin, Tayfun, Koldas, Zehra Lale, Celik, Ahmet, Cavusoglu, Yuksel, Demir, Mesut, Onrat, Ersel, Duzenli, Mehmet, Cosansu, Kahraman, Muderrisoglu, Ibrahim Haldun, Tuncer, Mustafa, Badak, Ozer, Nalbantgil, Sanem, Kirma, Cevat, Okuyan, Ertugrul, Guray, Umit, Prokhorov, Oleksandr, Karpenko, Oleksandr, Vakaliuk, Igor, Yagensky, Andriy, Kracz, Igor, Stanislavchuk, Mykola, Kulynych, Oleksii, Rishko, Mykola, Stets, Roman, Tseluyko, Vira, Mishchenko, Larysa, Rudenko, Leonid, Rudyk, Iurii, Alieksieieva, Liudmyla, Korzh, Oleksii, Mostovoy, Yuriy, Parkhomenko, Oleksandr, Rasputina, Lesya, Voronkov, Leonid, Lymar, Yurii, Vasilyeva, Larysa, Keeling, Philip, Barr, Craig, Wong, Kenneth, Price, Dallas, Skaria, Binoy, Clark, Andrew, Chandrasekaran, Badrinathan, Trevelyan, Jasper, Gordon, Brian, Donnelly, Patrick, Glover, Jason, Ryding, Alisdair, Weir, Robin, Lang, Chim, Roy, Debashis, Adhya, Shaumik, Clifford, Piers, Ludman, Andrew, Kalra, Paul, Lynch, Mary, Mahmood, Shahid, Al Mohammad, Abdallah, Asubiaro, Joshua, Elmahi, Einas, Muthumala, Amal, Taylor, Justin, Gupta, Dinesh, Nadar, Venkatesh, Henderson, David, Zolty, Ronald, Sauer, Andrew, Adams, Kirkwood, Chandra, Lokesh, Jaffrani, Naseem, Grewal, Gurinder, Mancini, Donna, McLean, Dalton, Vasallo, Javier, Gottlieb, Stephen, Joseph, Susan, Barua, Rajat, Gorodeski, Eiran, Mouhaffel, Asad, Chung, Eugene, Desai, Pratik, Portnay, Edward, Rama, Bhola, Shandling, Adrian, Stahl, Llyod, Heilman, Karl, Jacob, Binu, Londono, Juan, Almousalli, Omar, Ashcom, Thomas, Bauerlein, Eugene Joseph, Koo, Charles, McGrew, Frank, Rajagopalan, Navin, Robinson, Shawn, Schultz, David, Starling, Randall, Ambardekar, Amrut, Bhagwat, Ravi, Boehmer, John, Bouza, Manuel, Farris, Neil, Feitell, Scott, Ganji, Jagadeesh, Geltman, Edward, Javier, Julian, Morrow, John Andrew, Pianko, Leonard, Smart, Frank, Adler, Alexander, Brinkley, Douglas, Cardona, Jose, Coletti, Andrew, Harris, John, Hunter, Vernon, Krantz, Mori, Lang, Christopher, Lovell, Charles, Murray, David, Pillutla, Priya, Shah, Amit, Bogaev, Roberta, Dauber, Ira, Franchi, Francesco, Fremont, Richard, Hart, Terence, Hattler, Brack, Janik, Matthew, Khalife, Wissam, Malhotra, Sanjay, Mamdani, Shafiq, Nelson, William, Orgera, Marisa, Ortiz, Aurelio, Rahko, Peter, Rennyson, Stephen, Shin, Jooyoung, Tsao, Lana, Uretsky, Barry, Wahid, Faisal, Wilkett, Matt, Amanullah, Aman, Baker, Mathue, Berk, Martin, Boccalandro, Fernando, Cruz, Kimberly, Doyle, Timothy, Gianfagna, Robert, Jones, Alonzo, King, Anthony, Lepor, Norman, Martinez‐Castrillon, Melvin, Pham, Michael, Radin, Michael, Radojevic, Joseph, Ramanathan, Kodangudi, Schmalfuss, Carsten, Schnitzler, Robert, Shah, Keyur, Takata, Theodore, Bertolet, Barry, Bostick, Brian, Civitello, Andrew, Collins, John, Dib, Nabil, Fang, James, Gilmore, Richard, Gray, Wayne, Grazette, Luanda, Haddad, Tariq, Hearne, Steven, Janmohamed, Munir, Katz, Richard, Kazemi, Navid, Llerena, Sara, Lohr, Nicole, Marzouka, George, Mignone, John, Ooi, Henry, Paszczuk, Anna, Pickett, Christopher, Sampognaro, Gregory, Sawyer, Douglas, Shayani, Steven, Treasure, Charles, Vaz, Garth, Vijay, Nampalli, Williams, Celeste, Yeoman, Gary, Zhang, Lily, Aaronson, Keith, Abo‐Auda, Wael, Alharethi, Rami, Anderson, William, Ariani, Mehrdad, Banerji, Sourin, Baweja, Paramdeep, Carson, Peter, Eberly, Arthur, Elliott, James, Fernando, Ronald, Fisher, Daniel, Forman, Steven, Gabriel, George, Gogia, Harinder, Hametz, Craig, Houston, Brian, Ibrahim, Hassan, Jadbabaie, Farid, Kassiotis, Christos, Krishnamoorthy, Arun, Kwan, Michael, Lupovitch, Steven, Macias, Leonardo, Malik, Adnan, Martinez, Luis, Miyamoto, Michael, Mody, Freny, Patel, Devesh, Peart, Brenda, Pisani, Barbara, Ramos, Mark, Rivero, Mariel, Shah, Anil, Sharma, Mukesh, Sichrovsky, Tina, Simon, Marc, Singh, Deovrat, Tallet, Julio, Vaccari, Christopher, Villoch, Mario, Wheeler, Matthew, Yousuf, Kabir, Abadier, Rafik, Abdullah, Shuaib, Arora, Raveen, Aslam, Shamaila, Buynak, Robert, Chang, David, Contreras, Johanna, Halpern, Stephen, Handel, Franklin, Heitner, John, Herzog, William, Jackson, Bruce, Kao, John, Kondo, Nicholas, Koren, Michael, LeWinter, Martin, Martindale, Jeffrey, Martinez‐Arraras, Joaquin, Olsen, Stephanie, Piatek, Marek, Ranadive, Nandkishore, Randall, William, Rao, Sunder, Rawitscher, David, Rider, James, Sokos, George, Strader, J Russell, Sulemanjee, Nasir, Tahirkheli, Naeem, Trichon, Benjamin, Vanhecke, Thomas, Whellan, David, Abuannadi, Mohammad, Aggarwala, Gaurav, Ahmad, Saad, Artis, Andre, Cheirif, Jorge, Cotarlan, Vladimir, Cox, Jeremy, Eaton, Charles, Florea, Viorel, Frank, Theodore, Friedman, Keith, Ganeshram, Vedampattu, Gass, Alan, Gemignani, Anthony, Hasni, Syed, Hedgepeth, Chester, Itchhaporia, Dipti, Kaluski, Edo, Karim, Amin, Kono, Alan, Lader, Ellis, Lakshminarayanan, Batlagundu, Lewis, Neil, Malhotra, Vinay, Mayer, Nolan, Mohapatra, Robert, Nair, Nandini, O'Brien, Terrence, Pauwaa, Sunil, Rowan, Christopher, Saxena, Sanjeev, Seto, Arnold, Shah, Nishant, Singh, Pradeep, Skopicki, Hal, Stoddard, Marcus, and Sweitzer, Nancy

Subjects
R1
Abstract

Aims:\ud The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTIC‐HF) trial. Here we describe the baseline characteristics of participants in GALACTIC‐HF and how these compare with other contemporary trials.\ud \ud Methods and Results:\ud Adults with established HFrEF, New York Heart Association functional class (NYHA) ≥ II, EF ≤35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokinetic‐guided dosing: 25, 37.5 or 50 mg bid). 8256 patients [male (79%), non‐white (22%), mean age 65 years] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NT‐proBNP 1971 pg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTIC‐HF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressure

Published
2020

85. Effect of simulated postprandial hyperglycemia on coronary blood flow in cardiac transplant recipients

Author

McNulty, Patrick H., Tulli, Mark A., Robertson, Bryan J., Lendel, Vasili, Harach, Lisa A., Scott, Sofia, and Boehmer, John P.

Subjects
Hyperglycemia -- Research, Blood flow -- Research, Organ transplant recipients -- Research, Coronary arteries -- Research, Heart -- Transplantation, Heart -- Research, Diabetes -- Research, Cardiovascular research, Biological sciences
Abstract

Patients with diabetes mellitus exhibit postprandial hyperglycemia, systemic oxidative stress, impaired endothelium-dependent, nitric oxide (NO)-mediated coronary artery dilatation, and an increased incidence of coronary events. Whether hyperglycemia causally mediates these associations is unknown. To test the hypothesis that postprandial hyperglycemia acutely impairs coronary endothelial function in humans, we compared the ability of the endothelium-dependent vasodilator acetylcholine to increase conduit coronary diameter (the macrovascular response) and coronary blood flow velocity (the microvascular response) in 12 cardiac transplant recipients without diabetes before and after blood glucose was raised from 6.7 [+ or -] 1.3 retool/1 (121 [+ or -] 24 mg/dl) to 17.8 [+ or -] 1.5 retool/1 (321 [+ or -] 27 mg/dl) for 1 h. Hyperglycemia acutely doubled circulating levels of the oxidation product malondialdehyde, indicating systemic oxidative stress, but did not affect the ability of acetylcholine to dilate conduit coronary segments or accelerate coronary blood flow. We conclude that the oxidative stress associated with a single acute episode of hyperglycemia affects neither acetylcholine-mediated coronary endothelial NO release nor the subsequent bioavailability, metabolism, or action of NO within the coronary circulation of cardiac transplant recipients. These observations imply that the relationship among hyperglycemia, oxidative stress, and coronary endothelial dysfunction is presumably mediated by mechanisms operating over longer periods of time. diabetes mellitus; coronary artery; coronary endothelial dysfunction doi:10.1152/ajpheart.00779.2006

Published
2007

88. Low-dose oral enoximone enhances the ability to wean patients with ultra-advanced heart failure from intravenous inotropic support: Results of the oral enoximone in intravenous inotrope-dependent subjects trial

Author

Feldman, Arthur M., Oren, Ron M., Abraham, William T., Boehmer, John P., Carson, Peter E., Eichhorn, Eric, Gilbert, Edward M., Kao, Andrew, Leier, Carl V., Lowes, Brian D., Mathier, Michael A., McGrew, Frank A., Metra, Marco, Zisman, Lawrence S., Shakar, Simon F., Krueger, Steven K., Robertson, Alastair D., White, Bill G., Gerber, Michael J., Wold, Gwyn E., and Bristow, Michael R.

Published
2007
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89. Multiparameter diagnostic sensor measurements during clinically stable periods and worsening heart failure in ambulatory patients

Author

Gardner, Roy S., primary, Thakur, Pramodsingh, additional, Hammill, Eric F., additional, Nair, Devi G., additional, Eldadah, Zayd, additional, Stančák, Branislav, additional, Ferrick, Kevin, additional, Sriratanasathavorn, Charn, additional, Duray, Gábor Zoltán, additional, Wariar, Ramesh, additional, Zhang, Yi, additional, An, Qi, additional, Averina, Viktoria, additional, and Boehmer, John P., additional

Published
2021
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90. Renal vascular response to static handgrip exercise: sympathetic vs. autoregulatory control

Author

Momen, Afsana, Bower, Douglas, Leuenberger, Urs A., Boehmer, John, Lerner, Susan, Alfrey, Edward J., Handly, Brian, and Sinoway, Lawrence I.

Subjects
Kidneys -- Research, Blood flow -- Research, Vasoconstriction -- Research, Exercise -- Health aspects, Exercise -- Research, Exercise -- Physiological aspects, Kidneys -- Transplantation, Biological sciences
Abstract

Static exercise causes activation of the sympathetic nervous system, which results in increased blood pressure (BP) and renal vascular resistance (RVR). The question arises as to whether renal vasoconstriction that occurs during static exercise is due to sympathetic activation and/or related to a pressure-dependent renal autoregulatory mechanism. To address this issue, we monitored renal blood flow velocity (RBV) responses to two different handgrip (HG) exercise paradigms in 7 kidney transplant recipients (RTX) and 11 age-matched healthy control subjects. Transplanted kidneys are functionally denervated. Beat-by-beat analyses of changes in RBV (observed via duplex ultrasound), BP, and heart rate were performed during HG exercise in all subjects. An index of RVR was calculated as BP/RBV. In protocol 1, fatiguing HG exercise (40% of maximum voluntary contraction) led to significant increases in RVR in both groups. However, at the end of exercise, RVR was more than fourfold higher in control subjects than in the RTX group (88 vs. 20% increase over baseline; interaction, P < 0.001). In protocol 2, short bouts of HG exercise (15 s) led to significant increases in RVR at higher workloads (50 and 70% of maximum voluntary contraction) in the control subjects (P < 0.001). RVR did not increase in the RTX group. In conclusion, we observed grossly attenuated renal vasoconstrictor responses to exercise in RTX subjects, in whom transplanted kidneys were considered functionally denervated. Our results suggest that renal vasoconstrictor responses to exercise in conscious humans are mainly dependent on activation of a neural mechanism. kidney; blood flow; autoregulation; handgrip; vasoconstriction; transplant

Published
2005

91. Renal blood flow in heart failure patients during exercise

Author

Momen, Afsana, Bower, Douglas, Boehmer, John, Kunselman, Allen R., Leuenberger, Urs A., and Sinoway, Lawrence I.

Subjects
Kidneys -- Research, Heart failure -- Research, Biological sciences
Abstract

During exercise, reflex renal vasoconstriction maintains blood pressure and helps in redistributing blood flow to the contracting muscle. Exercise intolerance in heart failure (HF) is thought to involve diminished perfusion in active muscle. We studied the temporal relationship between static handgrip (HG) and renal blood flow velocity (RBV; duplex ultrasound) in 10 HF and in 9 matched controls during 3 muscle contraction paradigms. Fatiguing HG (protocol 1) at 40% of maximum voluntary contraction led to a greater reduction in RBV in HF compared with controls (group main effect: P < 0.05). The reduction in RBV early in HG tended to be more prominent during the early phases of protocol 1. Similar RBV was observed in the two groups during post-HG circulatory arrest (isolating muscle metaboreflex). Short bouts (15 s) of HG at graded intensities (protocol 2; engages muscle mechanoreflex and/or central command) led to greater reductions in RBV in HF than controls (P < 0.03). Protocol 3, voluntary and involuntary biceps contraction (eliminates central command), led to similar increases in renal vasoconstriction in HF (n = 4). Greater reductions in RBV were found in HF than in controls during the early phases of exercise. This effect was not likely due to a metaboreflex or central command. Thus our data suggest that muscle mechanoreflex activity is enhanced in HF and serves to vigorously vasoconstrict the kidney. We believe this compensatory mechanism helps preserve blood flow to exercising muscle in HF. kidney; nervous system; sympathetic; vasoconstriction

Published
2004

92. Cardiac-resynchronization therapy with or without an implantable defibrillator in advanced chronic heart failure

Author

Bristow, Michael R., De Marco, Teresa, Saxon, Leslie A., DiCarlo, Lorenz, Boehmer, John, Krueger, Steven, Kass, David A., Feldman, Arthur M., White, Bill G., and DeVries, Dale W.

Subjects
Implantable cardioverter-defibrillators -- Usage, Cardiac pacing -- Evaluation, Heart failure -- Diagnosis, Heart failure -- Risk factors
Abstract

A study conducted to find out whether, cardiac-resynchronization therapy is more beneficial with or without an implantable defibrillator, is presented. According to the study, when combined with an implantable defibrillator, cardiac-resynchronization therapy reduces mortality significantly.

Published
2004

96. 2012 EHRA/HRS expert consensus statement on cardiac resynchronization therapy in heart failure: implant and follow-up recommendations and management: A registered branch of the European Society of Cardiology (ESC), and the Heart Rhythm Society; and in collaboration with the Heart Failure Society of America (HFSA), the American Society of Echocardiography (ASE), the American Heart Association (AHA), the European Association of Echocardiography (EAE) of the ESC and the Heart Failure Association of the ESC (HFA).: Endorsed by the governing bodies of AHA, ASE, EAE, HFSA, HFA, EHRA, and HRS

Author

Daubert, Jean-Claude, Saxon, Leslie, Adamson, Philip B., Auricchio, Angelo, Berger, Ronald D., Beshai, John F., Breithard, Ole, Brignole, Michele, Cleland, John, DeLurgio, David B., Dickstein, Kenneth, Exner, Derek V., Gold, Michael, Grimm, Richard A., Hayes, David L., Israel, Carsten, Leclercq, Christophe, Linde, Cecilia, Lindenfeld, JoAnn, Merkely, Bela, Mont, Lluis, Murgatroyd, Francis, Prinzen, Frits, Saba, Samir F., Shinbane, Jerold S., Singh, Jagmeet, Tang, Anthony S., Vardas, Panos E., Wilkoff, Bruce L., Zamorano, Jose Luis, Anand, Inder, Blomström-Lundqvist, Carina, Boehmer, John P., Calkins, Hugh, Cazeau, Serge, Delgado, Victoria, Estes, N.A. Mark, Haines, David, Kusumoto, Fred, Leyva, Paco, Ruschitzka, Frank, Stevenson, Lynne Warner, and Torp-Pedersen, Christian Tobias

Published
2012
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