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1. The LSST Data Management System

Author

Jurić, Mario, Kantor, Jeffrey, Lim, K-T, Lupton, Robert H., Dubois-Felsmann, Gregory, Jenness, Tim, Axelrod, Tim S., Aleksić, Jovan, Allsman, Roberta A., AlSayyad, Yusra, Alt, Jason, Armstrong, Robert, Basney, Jim, Becker, Andrew C., Becla, Jacek, Bickerton, Steven J., Biswas, Rahul, Bosch, James, Boutigny, Dominique, Kind, Matias Carrasco, Ciardi, David R., Connolly, Andrew J., Daniel, Scott F., Daues, Gregory E., Economou, Frossie, Chiang, Hsin-Fang, Fausti, Angelo, Fisher-Levine, Merlin, Freemon, D. Michael, Gee, Perry, Gris, Philippe, Hernandez, Fabio, Hoblitt, Joshua, Ivezić, Željko, Jammes, Fabrice, Jevremović, Darko, Jones, R. Lynne, Kalmbach, J. Bryce, Kasliwal, Vishal P., Krughoff, K. Simon, Lang, Dustin, Lurie, John, Lust, Nate B., Mullally, Fergal, MacArthur, Lauren A., Melchior, Peter, Moeyens, Joachim, Nidever, David L., Owen, Russell, Parejko, John K, Peterson, J. Matt, Petravick, Donald, Pietrowicz, Stephen R., Price, Paul A., Reiss, David J., Shaw, Richard A., Sick, Jonathan, Slater, Colin T., Strauss, Michael A., Sullivan, Ian S., Swinbank, John D., Van Dyk, Schuyler, Vujčić, Veljko, Withers, Alexander, and Yoachim, Peter

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Large Synoptic Survey Telescope (LSST) is a large-aperture, wide-field, ground-based survey system that will image the sky in six optical bands from 320 to 1050 nm, uniformly covering approximately $18,000$deg$^2$ of the sky over 800 times. The LSST is currently under construction on Cerro Pach\'on in Chile, and expected to enter operations in 2022. Once operational, the LSST will explore a wide range of astrophysical questions, from discovering "killer" asteroids to examining the nature of Dark Energy. The LSST will generate on average 15 TB of data per night, and will require a comprehensive Data Management system to reduce the raw data to scientifically useful catalogs and images with minimum human intervention. These reductions will result in a real-time alert stream, and eleven data releases over the 10-year duration of LSST operations. To enable this processing, the LSST project is developing a new, general-purpose, high-performance, scalable, well documented, open source data processing software stack for O/IR surveys. Prototypes of this stack are already capable of processing data from existing cameras (e.g., SDSS, DECam, MegaCam), and form the basis of the Hyper-Suprime Cam (HSC) Survey data reduction pipeline., Comment: 10 pages, 3 figures, to appear in the Proceedings of ADASS XXV

Published
2015

15. International longitudinal registry of patients with atrial fibrillation and treated with rivaroxaban: RIVaroxaban Evaluation in Real life setting (RIVER)

Author

Beyer-Westendorf, J., Camm, A. J., Fox, K. A. A., Le Heuzey, J. -Y., Haas, S., Turpie, A. G. G., Virdone, S., Kakkar, A. K., Pieper, K. S., Kayani, G., Gersh, B. J., Hildebrandt, P., Dominguez, H., Comuth, W., Frost, L., Moller, D. S., Christensen, H., Bruun, L. M., Milhem, A., Gauthier, J., Mielot, C., Chanseaume, S., Chopra, S., Amlaiky, A., Tricot, O., Sierra, V., Dompnier, A., Zannad, N., Pinzani, A., Quatre, A., Mansourati, J., Fauchier, L., Badenco, N., Gandjbakhch, E., Chachoua, K. F., Malquarti, V., Pierron, F., Sacher, F., Taieb, J., Davy, J. M., Marijon, E., Lellouche, N., Leenhardt, A., Salem, A., Lesto, I., Muller, J. J., Garcia, R., Neau, J. P., Berneau, J. B., Schon, N., Gulba, D., Appel, K. F., Merke, J., Dshabrailov, J., Bauknecht, C., Scheuermann, O., Schroder, T., Jung, W., Kopf, A., Brachmann, J., Leschke, M., Taggeselle, J., Seige, M., Lassig, T., Appel, S., Schmiedl, M., Muller, K., Heinz, G. U., Axthelm, C., Eberhard, K., Hugl, B., Schwarz, T., Sechtem, U., Falanga, A., Rubino, V., Calo, L., Ageno, W., Massari, F., Imberti, D., Di Gennaro, L., Gaita, F., Margonato, A., Cannava, G., Capasso, F., Diemberger, I., Pelliccia, F., Cafolla, A., Bardari, S., Mattei, L., Ruocco, L., Boriani, G., Poli, D., Testa, S., Indolfi, C., Quintavalla, R., Mos, L., Ladyjanskaia, G., Aksoy, I., Van De Wetering, M., Theunissen, L., Den Hartog, F., Nijmeijer, R., Van De Wal, R., Reinders, S., Patterson, M., Melker, E. D., Troquay, R., Korecki, J., Szyszka, A., Diks, F., Sumis, J., Cygler, J., Miklaszewicz, B., Litwiejko-Pietrynczak, E., Napora, P., Drelich, G., Kawka-Urbanek, T., Wranicz, J. K., Mierzejewski, M., Drzewiecka, A., Wronska, D., Fares, I., Baska, J., Stania, K., Krzyzanowski, W., Miekus, P., Tyminski, M., Dronov, D., Zenin, S., Isaeva, E., Lopukhov, A., Yakusevich, V., Kuznetsov, D., Kameneva, T., Pokushalov, E., Karetnikova, V., Dik, I., Karpushina, I., Nikolin, D., Doletsky, A., Ardashev, A., Timofeeva, A., Miller, O., Lyamina, N., Shubik, Y., Boldueva, S., Blanco Coronado, J. L., Gonzalez Juanatey, C., Otero, E., Alonso, D., Torres Llergo, J., Gonzalez Lama, J., De Prada Tiffe, J. A. V., Garcia Seara, F. J., Gomez Doblas, J. J., Riancho, J. A., Clua-Espuny, J. L., Motero, J., Arrarte, V. I., Martin Raymondi, D., Isasti Aizpurua, G., Marin, F., Nieto, J. A., Fernandez Portales, J., Alvarez Garcia, P., Torstensson, I., Cederin, B., Kalm, T., Rosenqvist, U., Thulin, J., Hajimirsadeghi, A., Crisby, M., Manoj, A., Bakhai, A., Mistri, A., Krishnan, M., Kumar, S., Kirubakaran, S., Thomas, H., Camm, J., Ahmed, F., Ross, A. M., Barry, K., Stockwell, R., Broadley, A., Mamun, M., Chatterjee, K., Cooke, J., Mccready, J., Dutta, D., John, K., Pandya, P., Howlett, R., Vinson, P., Lim, Foley, P., Bruce, D., Dixit, A., Broughton, D., Taylor, J., Schilling, R., Leon, K., Saeed, K., Shaheen, S., Tawfik, M., Mortadda, A., Seleem, M., Aly, M. S. I., Kazamel, G., Elbadry, M., Kamal, S., Hassan, M., Mostafa, M., Medhat, M. E. S., Ekhlas, Ghaleb, R., Taha, M. O., Daoud, I., Al Din, H., Imam, A. M., El Hameed, M. A., Helmy, Al-Murayeh, M., Akhtar, N., Matto, B. M., Ghani, M. A., Amoudi, O. A., Morsy, M. M., Bashir, A. A. F., Al Hossni, Y. M., Al Ghamdi, B., Zia-Ul-Sabah, Mir, S., Dardir, D., Masswary, A., Al Shehri, A. R., Iqbal, J., Almansori, M. A. J., Venkitachalam, C. G., Kurian, J., Rao, J., Aisheh, A., Albawab, A. A., Subbaraman, B., Amanat, A., Esfehani, K. J., Lochan, R., Bin Brek, A., Mittal, B., Ghazi, Y., Krishna, M., Tabatabaei, S. B., Thoppil, P. S., Nasim, S., El Khider Nour, S., Barros, P., Almeida, A. P., Andrade, M., Garbelini, B., Silvestrini, T. L., Alves, A. R., De Lima, C. E. B., Kormann, A., De Lima, G. G., Halperin, C., Salvadori Junior, D., Freitas, A. F., Gemelli, J. R., Ornelas, C. E., Dantas, J. M. M., Aziz, J. L., Backes, L. M., Barroso, W. S., Paiva, M. S., De Figueiredo Neto, J. A., Dos Santos, F. R., De Lima Neto, J. A., Bergo, R., Salvador Junior, P. R., Lopez, A. G., Alva, J. C. P., Gamba, M. A. A., Padilla-Padilla, F. G., Ruiz, A. E. B., Berlingieri, J., Bakbak, A., Gupta, M., Saunders, K., Costa-Vitali, A., Beaudry, P. R., Bhargava, R., Khaykin, Y., Healey, J. S., Crystal, E., Nadeau, Dhillon, Begg, A., Anderson, C., Baveja, S., Cross, D., Catanchin, A., Brieger, D., Lim, K. T., Davidson, P., Tan, R., Bhindi, R., Hickey, J., Layland, J., Bloch, M., Itty, C., Singh, B., Carroll, P., Lee, A., Starmer, G., Lehman, R., Universidad de Cantabria, Beyer-Westendorf J., Camm A.J., Fox K.A.A., Le Heuzey J.-Y., Haas S., Turpie A.G.G., Virdone S., Kakkar A.K., RIVER Registry Investigators: [..], A. Falanga, V. Rubino, L. Calo, W. Ageno, F. Massari, D. Imberti, L. Di Gennaro, F. Gaita, A. Margonato, G. Cannava, F. Capasso, I. Diemberger, F. Pelliccia, A. Cafolla, S. Bardari, L. Mattei, L. Ruocco, G. Boriani, D. Poli, S. Testa, C. Indolfi, R. Quintavalla, L. Mo, .., Beyer-Westendorf, J, Camm, A, Fox, K, Le Heuzey, J, Haas, S, Turpie, A, Virdone, S, Kakkar, A, Pieper, K, Kayani, G, Gersh, B, Hildebrandt, P, Dominguez, H, Comuth, W, Frost, L, Moller, D, Christensen, H, Bruun, L, Milhem, A, Gauthier, J, Mielot, C, Chanseaume, S, Chopra, S, Amlaiky, A, Tricot, O, Sierra, V, Dompnier, A, Zannad, N, Pinzani, A, Quatre, A, Mansourati, J, Fauchier, L, Badenco, N, Gandjbakhch, E, Chachoua, K, Malquarti, V, Pierron, F, Sacher, F, Taieb, J, Davy, J, Marijon, E, Lellouche, N, Leenhardt, A, Salem, A, Lesto, I, Muller, J, Garcia, R, Neau, J, Berneau, J, Schon, N, Gulba, D, Appel, K, Merke, J, Dshabrailov, J, Bauknecht, C, Scheuermann, O, Schroder, T, Jung, W, Kopf, A, Brachmann, J, Leschke, M, Taggeselle, J, Seige, M, Lassig, T, Appel, S, Schmiedl, M, Muller, K, Heinz, G, Axthelm, C, Eberhard, K, Hugl, B, Schwarz, T, Sechtem, U, Falanga, A, Rubino, V, Calo, L, Ageno, W, Massari, F, Imberti, D, Di Gennaro, L, Gaita, F, Margonato, A, Cannava, G, Capasso, F, Diemberger, I, Pelliccia, F, Cafolla, A, Bardari, S, Mattei, L, Ruocco, L, Boriani, G, Poli, D, Testa, S, Indolfi, C, Quintavalla, R, Mos, L, Ladyjanskaia, G, Aksoy, I, Van De Wetering, M, Theunissen, L, Den Hartog, F, Nijmeijer, R, Van De Wal, R, Reinders, S, Patterson, M, Melker, E, Troquay, R, Korecki, J, Szyszka, A, Diks, F, Sumis, J, Cygler, J, Miklaszewicz, B, Litwiejko-Pietrynczak, E, Napora, P, Drelich, G, Kawka-Urbanek, T, Wranicz, J, Mierzejewski, M, Drzewiecka, A, Wronska, D, Fares, I, Baska, J, Stania, K, Krzyzanowski, W, Miekus, P, Tyminski, M, Dronov, D, Zenin, S, Isaeva, E, Lopukhov, A, Yakusevich, V, Kuznetsov, D, Kameneva, T, Pokushalov, E, Karetnikova, V, Dik, I, Karpushina, I, Nikolin, D, Doletsky, A, Ardashev, A, Timofeeva, A, Miller, O, Lyamina, N, Shubik, Y, Boldueva, S, Blanco Coronado, J, Gonzalez Juanatey, C, Otero, E, Alonso, D, Torres Llergo, J, Gonzalez Lama, J, De Prada Tiffe, J, Garcia Seara, F, Gomez Doblas, J, Riancho, J, Clua-Espuny, J, Motero, J, Arrarte, V, Martin Raymondi, D, Isasti Aizpurua, G, Marin, F, Nieto, J, Fernandez Portales, J, Alvarez Garcia, P, Torstensson, I, Cederin, B, Kalm, T, Rosenqvist, U, Thulin, J, Hajimirsadeghi, A, Crisby, M, Manoj, A, Bakhai, A, Mistri, A, Krishnan, M, Kumar, S, Kirubakaran, S, Thomas, H, Camm, J, Ahmed, F, Ross, A, Barry, K, Stockwell, R, Broadley, A, Mamun, M, Chatterjee, K, Cooke, J, Mccready, J, Dutta, D, John, K, Pandya, P, Howlett, R, Vinson, P, Lim, Foley, P, Bruce, D, Dixit, A, Broughton, D, Taylor, J, Schilling, R, Leon, K, Saeed, K, Shaheen, S, Tawfik, M, Mortadda, A, Seleem, M, Aly, M, Kazamel, G, Elbadry, M, Kamal, S, Hassan, M, Mostafa, M, Medhat, M, Ekhlas, Ghaleb, R, Taha, M, Daoud, I, Al Din, H, Imam, A, El Hameed, M, Helmy, Al-Murayeh, M, Akhtar, N, Matto, B, Ghani, M, Amoudi, O, Morsy, M, Bashir, A, Al Hossni, Y, Al Ghamdi, B, Zia-Ul-Sabah, Mir, S, Dardir, D, Masswary, A, Al Shehri, A, Iqbal, J, Almansori, M, Venkitachalam, C, Kurian, J, Rao, J, Aisheh, A, Albawab, A, Subbaraman, B, Amanat, A, Esfehani, K, Lochan, R, Bin Brek, A, Mittal, B, Ghazi, Y, Krishna, M, Tabatabaei, S, Thoppil, P, Nasim, S, El Khider Nour, S, Barros, P, Almeida, A, Andrade, M, Garbelini, B, Silvestrini, T, Alves, A, De Lima, C, Kormann, A, De Lima, G, Halperin, C, Salvadori Junior, D, Freitas, A, Gemelli, J, Ornelas, C, Dantas, J, Aziz, J, Backes, L, Barroso, W, Paiva, M, De Figueiredo Neto, J, Dos Santos, F, De Lima Neto, J, Bergo, R, Salvador Junior, P, Lopez, A, Alva, J, Gamba, M, Padilla-Padilla, F, Ruiz, A, Berlingieri, J, Bakbak, A, Gupta, M, Saunders, K, Costa-Vitali, A, Beaudry, P, Bhargava, R, Khaykin, Y, Healey, J, Crystal, E, Nadeau, D, Begg, A, Anderson, C, Baveja, S, Cross, D, Catanchin, A, Brieger, D, Lim, K, Davidson, P, Tan, R, Bhindi, R, Hickey, J, Layland, J, Bloch, M, Itty, C, Singh, B, Carroll, P, Lee, A, Starmer, G, Lehman, R, Beyer-Westendorf, J., Camm, A. J., Fox, K. A. A., Le Heuzey, J. -Y., Haas, S., Turpie, A. G. G., Virdone, S., Kakkar, A. K., Pieper, K. S., Kayani, G., Gersh, B. J., Hildebrandt, P., Dominguez, H., Comuth, W., Frost, L., Moller, D. S., Christensen, H., Bruun, L. M., Milhem, A., Gauthier, J., Mielot, C., Chanseaume, S., Chopra, S., Amlaiky, A., Tricot, O., Sierra, V., Dompnier, A., Zannad, N., Pinzani, A., Quatre, A., Mansourati, J., Fauchier, L., Badenco, N., Gandjbakhch, E., Chachoua, K. F., Malquarti, V., Pierron, F., Sacher, F., Taieb, J., Davy, J. M., Marijon, E., Lellouche, N., Leenhardt, A., Salem, A., Lesto, I., Muller, J. J., Garcia, R., Neau, J. P., Berneau, J. B., Schon, N., Gulba, D., Appel, K. F., Merke, J., Dshabrailov, J., Bauknecht, C., Scheuermann, O., Schroder, T., Jung, W., Kopf, A., Brachmann, J., Leschke, M., Taggeselle, J., Seige, M., Lassig, T., Appel, S., Schmiedl, M., Muller, K., Heinz, G. U., Axthelm, C., Eberhard, K., Hugl, B., Schwarz, T., Sechtem, U., Falanga, A., Rubino, V., Calo, L., Ageno, W., Massari, F., Imberti, D., Di Gennaro, L., Gaita, F., Margonato, A., Cannava, G., Capasso, F., Diemberger, I., Pelliccia, F., Cafolla, A., Bardari, S., Mattei, L., Ruocco, L., Boriani, G., Poli, D., Testa, S., Indolfi, C., Quintavalla, R., Mos, L., Ladyjanskaia, G., Aksoy, I., Van De Wetering, M., Theunissen, L., Den Hartog, F., Nijmeijer, R., Van De Wal, R., Reinders, S., Patterson, M., Melker, E. D., Troquay, R., Korecki, J., Szyszka, A., Diks, F., Sumis, J., Cygler, J., Miklaszewicz, B., Litwiejko-Pietrynczak, E., Napora, P., Drelich, G., Kawka-Urbanek, T., Wranicz, J. K., Mierzejewski, M., Drzewiecka, A., Wronska, D., Fares, I., Baska, J., Stania, K., Krzyzanowski, W., Miekus, P., Tyminski, M., Dronov, D., Zenin, S., Isaeva, E., Lopukhov, A., Yakusevich, V., Kuznetsov, D., Kameneva, T., Pokushalov, E., Karetnikova, V., Dik, I., Karpushina, I., Nikolin, D., Doletsky, A., Ardashev, A., Timofeeva, A., Miller, O., Lyamina, N., Shubik, Y., Boldueva, S., Blanco Coronado, J. L., Gonzalez Juanatey, C., Otero, E., Alonso, D., Torres Llergo, J., Gonzalez Lama, J., De Prada Tiffe, J. A. V., Garcia Seara, F. J., Gomez Doblas, J. J., Riancho, J. A., Clua-Espuny, J. L., Motero, J., Arrarte, V. I., Martin Raymondi, D., Isasti Aizpurua, G., Marin, F., Nieto, J. A., Fernandez Portales, J., Alvarez Garcia, P., Torstensson, I., Cederin, B., Kalm, T., Rosenqvist, U., Thulin, J., Hajimirsadeghi, A., Crisby, M., Manoj, A., Bakhai, A., Mistri, A., Krishnan, M., Kumar, S., Kirubakaran, S., Thomas, H., Camm, J., Ahmed, F., Ross, A. M., Barry, K., Stockwell, R., Broadley, A., Mamun, M., Chatterjee, K., Cooke, J., Mccready, J., Dutta, D., John, K., Pandya, P., Howlett, R., Vinson, P., Foley, P., Bruce, D., Dixit, A., Broughton, D., Taylor, J., Schilling, R., Leon, K., Saeed, K., Shaheen, S., Tawfik, M., Mortadda, A., Seleem, M., Aly, M. S. I., Kazamel, G., Elbadry, M., Kamal, S., Hassan, M., Mostafa, M., Medhat, M. E. S., Ghaleb, R., Taha, M. O., Daoud, I., Al Din, H., Imam, A. M., El Hameed, M. A., Al-Murayeh, M., Akhtar, N., Matto, B. M., Ghani, M. A., Amoudi, O. A., Morsy, M. M., Bashir, A. A. F., Al Hossni, Y. M., Al Ghamdi, B., Mir, S., Dardir, D., Masswary, A., Al Shehri, A. R., Iqbal, J., Almansori, M. A. J., Venkitachalam, C. G., Kurian, J., Rao, J., Aisheh, A., Albawab, A. A., Subbaraman, B., Amanat, A., Esfehani, K. J., Lochan, R., Bin Brek, A., Mittal, B., Ghazi, Y., Krishna, M., Tabatabaei, S. B., Thoppil, P. S., Nasim, S., El Khider Nour, S., Barros, P., Almeida, A. P., Andrade, M., Garbelini, B., Silvestrini, T. L., Alves, A. R., De Lima, C. E. B., Kormann, A., De Lima, G. G., Halperin, C., Salvadori Junior, D., Freitas, A. F., Gemelli, J. R., Ornelas, C. E., Dantas, J. M. M., Aziz, J. L., Backes, L. M., Barroso, W. S., Paiva, M. S., De Figueiredo Neto, J. A., Dos Santos, F. R., De Lima Neto, J. A., Bergo, R., Salvador Junior, P. R., Lopez, A. G., Alva, J. C. P., Gamba, M. A. A., Padilla-Padilla, F. G., Ruiz, A. E. B., Berlingieri, J., Bakbak, A., Gupta, M., Saunders, K., Costa-Vitali, A., Beaudry, P. R., Bhargava, R., Khaykin, Y., Healey, J. S., Crystal, E., Nadeau, Dhillon, Begg, A., Anderson, C., Baveja, S., Cross, D., Catanchin, A., Brieger, D., Lim, K. T., Davidson, P., Tan, R., Bhindi, R., Hickey, J., Layland, J., Bloch, M., Itty, C., Singh, B., Carroll, P., Lee, A., Starmer, G., and Lehman, R.

Subjects
medicine.medical_specialty, Registry, medicine.drug_class, Population, Thromboembolic stroke, Outcomes, 030204 cardiovascular system & hematology, 03 medical and health sciences, 0302 clinical medicine, Antithrombotic, Rivaroxaban, Anticoagulant, Atrial fibrillation, medicine, 030212 general & internal medicine, Risk factor, education, Stroke, Outcome, education.field_of_study, business.industry, lcsh:RC633-647.5, Research, Hematology, lcsh:Diseases of the blood and blood-forming organs, medicine.disease, ddc, Clinical trial, Emergency medicine, business, medicine.drug
Abstract

Background: Real-world data on non-vitamin K oral anticoagulants (NOACs) are essential in determining whether evidence from randomised controlled clinical trials translate into meaningful clinical benefits for patients in everyday practice. RIVER (RIVaroxaban Evaluation in Real life setting) is an ongoing international, prospective registry of patients with newly diagnosed non-valvular atrial fibrillation (NVAF) and at least one investigator-determined risk factor for stroke who received rivaroxaban as an initial treatment for the prevention of thromboembolic stroke. The aim of this paper is to describe the design of the RIVER registry and baseline characteristics of patients with newly diagnosed NVAF who received rivaroxaban as an initial treatment. Methods and results: Between January 2014 and June 2017, RIVER investigators recruited 5072 patients at 309 centres in 17 countries. The aim was to enroll consecutive patients at sites where rivaroxaban was already routinely prescribed for stroke prevention. Each patient is being followed up prospectively for a minimum of 2-years. The registry will capture data on the rate and nature of all thromboembolic events (stroke / systemic embolism), bleeding complications, all-cause mortality and other major cardiovascular events as they occur. Data quality is assured through a combination of remote electronic monitoring and onsite monitoring (including source data verification in 10% of cases). Patients were mostly enrolled by cardiologists (n = 3776, 74.6%), by internal medicine specialists 14.2% (n = 718) and by primary care/general practice physicians 8.2% (n = 417). The mean (SD) age of the population was 69.5 (11.0) years, 44.3% were women. Mean (SD) CHADS2 score was 1.9 (1.2) and CHA2DS2-VASc scores was 3.2 (1.6). Almost all patients (98.5%) were prescribed with once daily dose of rivaroxaban, most commonly 20 mg (76.5%) and 15 mg (20.0%) as their initial treatment; 17.9% of patients received concomitant antiplatelet therapy. Most patients enrolled in RIVER met the recommended threshold for AC therapy (86.6% for 2012 ESC Guidelines, and 79.8% of patients according to 2016 ESC Guidelines). Conclusions: The RIVER prospective registry will expand our knowledge of how rivaroxaban is prescribed in everyday practice and whether evidence from clinical trials can be translated to the broader cross-section of patients in the real world. Funding: This work is supported by an unrestricted research grant from Bayer AG (Berlin, Germany) to the Thrombosis Research Institute (London, UK), which sponsors the RIVER registry. The funding source had no involvement in the data collection, data analysis or data interpretation.

Published
2019

27. International longitudinal registry of patients with atrial fibrillation and treated with rivaroxaban: RIVaroxaban Evaluation in Real life setting (RIVER)

Author

Beyer-Westendorf, J, Camm, A, Fox, K, Le Heuzey, J, Haas, S, Turpie, A, Virdone, S, Kakkar, A, Pieper, K, Kayani, G, Gersh, B, Hildebrandt, P, Dominguez, H, Comuth, W, Frost, L, Moller, D, Christensen, H, Bruun, L, Milhem, A, Gauthier, J, Mielot, C, Chanseaume, S, Chopra, S, Amlaiky, A, Tricot, O, Sierra, V, Dompnier, A, Zannad, N, Pinzani, A, Quatre, A, Mansourati, J, Fauchier, L, Badenco, N, Gandjbakhch, E, Chachoua, K, Malquarti, V, Pierron, F, Sacher, F, Taieb, J, Davy, J, Marijon, E, Lellouche, N, Leenhardt, A, Salem, A, Lesto, I, Muller, J, Garcia, R, Neau, J, Berneau, J, Schon, N, Gulba, D, Appel, K, Merke, J, Dshabrailov, J, Bauknecht, C, Scheuermann, O, Schroder, T, Jung, W, Kopf, A, Brachmann, J, Leschke, M, Taggeselle, J, Seige, M, Lassig, T, Appel, S, Schmiedl, M, Muller, K, Heinz, G, Axthelm, C, Eberhard, K, Hugl, B, Schwarz, T, Sechtem, U, Falanga, A, Rubino, V, Calo, L, Ageno, W, Massari, F, Imberti, D, Di Gennaro, L, Gaita, F, Margonato, A, Cannava, G, Capasso, F, Diemberger, I, Pelliccia, F, Cafolla, A, Bardari, S, Mattei, L, Ruocco, L, Boriani, G, Poli, D, Testa, S, Indolfi, C, Quintavalla, R, Mos, L, Ladyjanskaia, G, Aksoy, I, Van De Wetering, M, Theunissen, L, Den Hartog, F, Nijmeijer, R, Van De Wal, R, Reinders, S, Patterson, M, Melker, E, Troquay, R, Korecki, J, Szyszka, A, Diks, F, Sumis, J, Cygler, J, Miklaszewicz, B, Litwiejko-Pietrynczak, E, Napora, P, Drelich, G, Kawka-Urbanek, T, Wranicz, J, Mierzejewski, M, Drzewiecka, A, Wronska, D, Fares, I, Baska, J, Stania, K, Krzyzanowski, W, Miekus, P, Tyminski, M, Dronov, D, Zenin, S, Isaeva, E, Lopukhov, A, Yakusevich, V, Kuznetsov, D, Kameneva, T, Pokushalov, E, Karetnikova, V, Dik, I, Karpushina, I, Nikolin, D, Doletsky, A, Ardashev, A, Timofeeva, A, Miller, O, Lyamina, N, Shubik, Y, Boldueva, S, Blanco Coronado, J, Gonzalez Juanatey, C, Otero, E, Alonso, D, Torres Llergo, J, Gonzalez Lama, J, De Prada Tiffe, J, Garcia Seara, F, Gomez Doblas, J, Riancho, J, Clua-Espuny, J, Motero, J, Arrarte, V, Martin Raymondi, D, Isasti Aizpurua, G, Marin, F, Nieto, J, Fernandez Portales, J, Alvarez Garcia, P, Torstensson, I, Cederin, B, Kalm, T, Rosenqvist, U, Thulin, J, Hajimirsadeghi, A, Crisby, M, Manoj, A, Bakhai, A, Mistri, A, Krishnan, M, Kumar, S, Kirubakaran, S, Thomas, H, Camm, J, Ahmed, F, Ross, A, Barry, K, Stockwell, R, Broadley, A, Mamun, M, Chatterjee, K, Cooke, J, Mccready, J, Dutta, D, John, K, Pandya, P, Howlett, R, Vinson, P, Lim, Foley, P, Bruce, D, Dixit, A, Broughton, D, Taylor, J, Schilling, R, Leon, K, Saeed, K, Shaheen, S, Tawfik, M, Mortadda, A, Seleem, M, Aly, M, Kazamel, G, Elbadry, M, Kamal, S, Hassan, M, Mostafa, M, Medhat, M, Ekhlas, Ghaleb, R, Taha, M, Daoud, I, Al Din, H, Imam, A, El Hameed, M, Helmy, Al-Murayeh, M, Akhtar, N, Matto, B, Ghani, M, Amoudi, O, Morsy, M, Bashir, A, Al Hossni, Y, Al Ghamdi, B, Zia-Ul-Sabah, Mir, S, Dardir, D, Masswary, A, Al Shehri, A, Iqbal, J, Almansori, M, Venkitachalam, C, Kurian, J, Rao, J, Aisheh, A, Albawab, A, Subbaraman, B, Amanat, A, Esfehani, K, Lochan, R, Bin Brek, A, Mittal, B, Ghazi, Y, Krishna, M, Tabatabaei, S, Thoppil, P, Nasim, S, El Khider Nour, S, Barros, P, Almeida, A, Andrade, M, Garbelini, B, Silvestrini, T, Alves, A, De Lima, C, Kormann, A, De Lima, G, Halperin, C, Salvadori Junior, D, Freitas, A, Gemelli, J, Ornelas, C, Dantas, J, Aziz, J, Backes, L, Barroso, W, Paiva, M, De Figueiredo Neto, J, Dos Santos, F, De Lima Neto, J, Bergo, R, Salvador Junior, P, Lopez, A, Alva, J, Gamba, M, Padilla-Padilla, F, Ruiz, A, Berlingieri, J, Bakbak, A, Gupta, M, Saunders, K, Costa-Vitali, A, Beaudry, P, Bhargava, R, Khaykin, Y, Healey, J, Crystal, E, Nadeau, D, Begg, A, Anderson, C, Baveja, S, Cross, D, Catanchin, A, Brieger, D, Lim, K, Davidson, P, Tan, R, Bhindi, R, Hickey, J, Layland, J, Bloch, M, Itty, C, Singh, B, Carroll, P, Lee, A, Starmer, G, Lehman, R, Beyer-Westendorf J., Camm A. J., Fox K. A. A., Le Heuzey J. -Y., Haas S., Turpie A. G. G., Virdone S., Kakkar A. K., Pieper K. S., Kayani G., Gersh B. J., Hildebrandt P., Dominguez H., Comuth W., Frost L., Moller D. S., Christensen H., Bruun L. M., Milhem A., Gauthier J., Mielot C., Chanseaume S., Chopra S., Amlaiky A., Tricot O., Sierra V., Dompnier A., Zannad N., Pinzani A., Quatre A., Mansourati J., Fauchier L., Badenco N., Gandjbakhch E., Chachoua K. F., Malquarti V., Pierron F., Sacher F., Taieb J., Davy J. M., Marijon E., Lellouche N., Leenhardt A., Salem A., Lesto I., Muller J. J., Garcia R., Neau J. P., Berneau J. B., Schon N., Gulba D., Appel K. F., Merke J., Dshabrailov J., Bauknecht C., Scheuermann O., Schroder T., Jung W., Kopf A., Brachmann J., Leschke M., Taggeselle J., Seige M., Lassig T., Appel S., Schmiedl M., Muller K., Heinz G. U., Axthelm C., Eberhard K., Hugl B., Schwarz T., Sechtem U., Falanga A., Rubino V., Calo L., Ageno W., Massari F., Imberti D., Di Gennaro L., Gaita F., Margonato A., Cannava G., Capasso F., Diemberger I., Pelliccia F., Cafolla A., Bardari S., Mattei L., Ruocco L., Boriani G., Poli D., Testa S., Indolfi C., Quintavalla R., Mos L., Ladyjanskaia G., Aksoy I., Van De Wetering M., Theunissen L., Den Hartog F., Nijmeijer R., Van De Wal R., Reinders S., Patterson M., Melker E. D., Troquay R., Korecki J., Szyszka A., Diks F., Sumis J., Cygler J., Miklaszewicz B., Litwiejko-Pietrynczak E., Napora P., Drelich G., Kawka-Urbanek T., Wranicz J. K., Mierzejewski M., Drzewiecka A., Wronska D., Fares I., Baska J., Stania K., Krzyzanowski W., Miekus P., Tyminski M., Dronov D., Zenin S., Isaeva E., Lopukhov A., Yakusevich V., Kuznetsov D., Kameneva T., Pokushalov E., Karetnikova V., Dik I., Karpushina I., Nikolin D., Doletsky A., Ardashev A., Timofeeva A., Miller O., Lyamina N., Shubik Y., Boldueva S., Blanco Coronado J. L., Gonzalez Juanatey C., Otero E., Alonso D., Torres Llergo J., Gonzalez Lama J., De Prada Tiffe J. A. V., Garcia Seara F. J., Gomez Doblas J. J., Riancho J. A., Clua-Espuny J. L., Motero J., Arrarte V. I., Martin Raymondi D., Isasti Aizpurua G., Marin F., Nieto J. A., Fernandez Portales J., Alvarez Garcia P., Torstensson I., Cederin B., Kalm T., Rosenqvist U., Thulin J., Hajimirsadeghi A., Crisby M., Manoj A., Bakhai A., Mistri A., Krishnan M., Kumar S., Kirubakaran S., Thomas H., Camm J., Ahmed F., Ross A. M., Barry K., Stockwell R., Broadley A., Mamun M., Chatterjee K., Cooke J., McCready J., Dutta D., John K., Pandya P., Howlett R., Vinson P., Foley P., Bruce D., Dixit A., Broughton D., Taylor J., Schilling R., Leon K., Saeed K., Shaheen S., Tawfik M., Mortadda A., Seleem M., Aly M. S. I., Kazamel G., Elbadry M., Kamal S., Hassan M., Mostafa M., Medhat M. E. S., Ghaleb R., Taha M. O., Daoud I., Al Din H., Imam A. M., El Hameed M. A., Al-Murayeh M., Akhtar N., Matto B. M., Ghani M. A., Amoudi O. A., Morsy M. M., Bashir A. A. F., Al Hossni Y. M., Al Ghamdi B., Mir S., Dardir D., Masswary A., Al Shehri A. R., Iqbal J., Almansori M. A. J., Venkitachalam C. G., Kurian J., Rao J., Aisheh A., Albawab A. A., Subbaraman B., Amanat A., Esfehani K. J., Lochan R., Bin Brek A., Mittal B., Ghazi Y., Krishna M., Tabatabaei S. B., Thoppil P. S., Nasim S., El Khider Nour S., Barros P., Almeida A. P., Andrade M., Garbelini B., Silvestrini T. L., Alves A. R., De Lima C. E. B., Kormann A., De Lima G. G., Halperin C., Salvadori Junior D., Freitas A. F., Gemelli J. R., Ornelas C. E., Dantas J. M. M., Aziz J. L., Backes L. M., Barroso W. S., Paiva M. S., De Figueiredo Neto J. A., Dos Santos F. R., De Lima Neto J. A., Bergo R., Salvador Junior P. R., Lopez A. G., Alva J. C. P., Gamba M. A. A., Padilla-Padilla F. G., Ruiz A. E. B., Berlingieri J., Bakbak A., Gupta M., Saunders K., Costa-Vitali A., Beaudry P. R., Bhargava R., Khaykin Y., Healey J. S., Crystal E., Nadeau Dhillon, Begg A., Anderson C., Baveja S., Cross D., Catanchin A., Brieger D., Lim K. T., Davidson P., Tan R., Bhindi R., Hickey J., Layland J., Bloch M., Itty C., Singh B., Carroll P., Lee A., Starmer G., Lehman R., Beyer-Westendorf, J, Camm, A, Fox, K, Le Heuzey, J, Haas, S, Turpie, A, Virdone, S, Kakkar, A, Pieper, K, Kayani, G, Gersh, B, Hildebrandt, P, Dominguez, H, Comuth, W, Frost, L, Moller, D, Christensen, H, Bruun, L, Milhem, A, Gauthier, J, Mielot, C, Chanseaume, S, Chopra, S, Amlaiky, A, Tricot, O, Sierra, V, Dompnier, A, Zannad, N, Pinzani, A, Quatre, A, Mansourati, J, Fauchier, L, Badenco, N, Gandjbakhch, E, Chachoua, K, Malquarti, V, Pierron, F, Sacher, F, Taieb, J, Davy, J, Marijon, E, Lellouche, N, Leenhardt, A, Salem, A, Lesto, I, Muller, J, Garcia, R, Neau, J, Berneau, J, Schon, N, Gulba, D, Appel, K, Merke, J, Dshabrailov, J, Bauknecht, C, Scheuermann, O, Schroder, T, Jung, W, Kopf, A, Brachmann, J, Leschke, M, Taggeselle, J, Seige, M, Lassig, T, Appel, S, Schmiedl, M, Muller, K, Heinz, G, Axthelm, C, Eberhard, K, Hugl, B, Schwarz, T, Sechtem, U, Falanga, A, Rubino, V, Calo, L, Ageno, W, Massari, F, Imberti, D, Di Gennaro, L, Gaita, F, Margonato, A, Cannava, G, Capasso, F, Diemberger, I, Pelliccia, F, Cafolla, A, Bardari, S, Mattei, L, Ruocco, L, Boriani, G, Poli, D, Testa, S, Indolfi, C, Quintavalla, R, Mos, L, Ladyjanskaia, G, Aksoy, I, Van De Wetering, M, Theunissen, L, Den Hartog, F, Nijmeijer, R, Van De Wal, R, Reinders, S, Patterson, M, Melker, E, Troquay, R, Korecki, J, Szyszka, A, Diks, F, Sumis, J, Cygler, J, Miklaszewicz, B, Litwiejko-Pietrynczak, E, Napora, P, Drelich, G, Kawka-Urbanek, T, Wranicz, J, Mierzejewski, M, Drzewiecka, A, Wronska, D, Fares, I, Baska, J, Stania, K, Krzyzanowski, W, Miekus, P, Tyminski, M, Dronov, D, Zenin, S, Isaeva, E, Lopukhov, A, Yakusevich, V, Kuznetsov, D, Kameneva, T, Pokushalov, E, Karetnikova, V, Dik, I, Karpushina, I, Nikolin, D, Doletsky, A, Ardashev, A, Timofeeva, A, Miller, O, Lyamina, N, Shubik, Y, Boldueva, S, Blanco Coronado, J, Gonzalez Juanatey, C, Otero, E, Alonso, D, Torres Llergo, J, Gonzalez Lama, J, De Prada Tiffe, J, Garcia Seara, F, Gomez Doblas, J, Riancho, J, Clua-Espuny, J, Motero, J, Arrarte, V, Martin Raymondi, D, Isasti Aizpurua, G, Marin, F, Nieto, J, Fernandez Portales, J, Alvarez Garcia, P, Torstensson, I, Cederin, B, Kalm, T, Rosenqvist, U, Thulin, J, Hajimirsadeghi, A, Crisby, M, Manoj, A, Bakhai, A, Mistri, A, Krishnan, M, Kumar, S, Kirubakaran, S, Thomas, H, Camm, J, Ahmed, F, Ross, A, Barry, K, Stockwell, R, Broadley, A, Mamun, M, Chatterjee, K, Cooke, J, Mccready, J, Dutta, D, John, K, Pandya, P, Howlett, R, Vinson, P, Lim, Foley, P, Bruce, D, Dixit, A, Broughton, D, Taylor, J, Schilling, R, Leon, K, Saeed, K, Shaheen, S, Tawfik, M, Mortadda, A, Seleem, M, Aly, M, Kazamel, G, Elbadry, M, Kamal, S, Hassan, M, Mostafa, M, Medhat, M, Ekhlas, Ghaleb, R, Taha, M, Daoud, I, Al Din, H, Imam, A, El Hameed, M, Helmy, Al-Murayeh, M, Akhtar, N, Matto, B, Ghani, M, Amoudi, O, Morsy, M, Bashir, A, Al Hossni, Y, Al Ghamdi, B, Zia-Ul-Sabah, Mir, S, Dardir, D, Masswary, A, Al Shehri, A, Iqbal, J, Almansori, M, Venkitachalam, C, Kurian, J, Rao, J, Aisheh, A, Albawab, A, Subbaraman, B, Amanat, A, Esfehani, K, Lochan, R, Bin Brek, A, Mittal, B, Ghazi, Y, Krishna, M, Tabatabaei, S, Thoppil, P, Nasim, S, El Khider Nour, S, Barros, P, Almeida, A, Andrade, M, Garbelini, B, Silvestrini, T, Alves, A, De Lima, C, Kormann, A, De Lima, G, Halperin, C, Salvadori Junior, D, Freitas, A, Gemelli, J, Ornelas, C, Dantas, J, Aziz, J, Backes, L, Barroso, W, Paiva, M, De Figueiredo Neto, J, Dos Santos, F, De Lima Neto, J, Bergo, R, Salvador Junior, P, Lopez, A, Alva, J, Gamba, M, Padilla-Padilla, F, Ruiz, A, Berlingieri, J, Bakbak, A, Gupta, M, Saunders, K, Costa-Vitali, A, Beaudry, P, Bhargava, R, Khaykin, Y, Healey, J, Crystal, E, Nadeau, D, Begg, A, Anderson, C, Baveja, S, Cross, D, Catanchin, A, Brieger, D, Lim, K, Davidson, P, Tan, R, Bhindi, R, Hickey, J, Layland, J, Bloch, M, Itty, C, Singh, B, Carroll, P, Lee, A, Starmer, G, Lehman, R, Beyer-Westendorf J., Camm A. J., Fox K. A. A., Le Heuzey J. -Y., Haas S., Turpie A. G. G., Virdone S., Kakkar A. K., Pieper K. S., Kayani G., Gersh B. J., Hildebrandt P., Dominguez H., Comuth W., Frost L., Moller D. S., Christensen H., Bruun L. M., Milhem A., Gauthier J., Mielot C., Chanseaume S., Chopra S., Amlaiky A., Tricot O., Sierra V., Dompnier A., Zannad N., Pinzani A., Quatre A., Mansourati J., Fauchier L., Badenco N., Gandjbakhch E., Chachoua K. F., Malquarti V., Pierron F., Sacher F., Taieb J., Davy J. M., Marijon E., Lellouche N., Leenhardt A., Salem A., Lesto I., Muller J. J., Garcia R., Neau J. P., Berneau J. B., Schon N., Gulba D., Appel K. F., Merke J., Dshabrailov J., Bauknecht C., Scheuermann O., Schroder T., Jung W., Kopf A., Brachmann J., Leschke M., Taggeselle J., Seige M., Lassig T., Appel S., Schmiedl M., Muller K., Heinz G. U., Axthelm C., Eberhard K., Hugl B., Schwarz T., Sechtem U., Falanga A., Rubino V., Calo L., Ageno W., Massari F., Imberti D., Di Gennaro L., Gaita F., Margonato A., Cannava G., Capasso F., Diemberger I., Pelliccia F., Cafolla A., Bardari S., Mattei L., Ruocco L., Boriani G., Poli D., Testa S., Indolfi C., Quintavalla R., Mos L., Ladyjanskaia G., Aksoy I., Van De Wetering M., Theunissen L., Den Hartog F., Nijmeijer R., Van De Wal R., Reinders S., Patterson M., Melker E. D., Troquay R., Korecki J., Szyszka A., Diks F., Sumis J., Cygler J., Miklaszewicz B., Litwiejko-Pietrynczak E., Napora P., Drelich G., Kawka-Urbanek T., Wranicz J. K., Mierzejewski M., Drzewiecka A., Wronska D., Fares I., Baska J., Stania K., Krzyzanowski W., Miekus P., Tyminski M., Dronov D., Zenin S., Isaeva E., Lopukhov A., Yakusevich V., Kuznetsov D., Kameneva T., Pokushalov E., Karetnikova V., Dik I., Karpushina I., Nikolin D., Doletsky A., Ardashev A., Timofeeva A., Miller O., Lyamina N., Shubik Y., Boldueva S., Blanco Coronado J. L., Gonzalez Juanatey C., Otero E., Alonso D., Torres Llergo J., Gonzalez Lama J., De Prada Tiffe J. A. V., Garcia Seara F. J., Gomez Doblas J. J., Riancho J. A., Clua-Espuny J. L., Motero J., Arrarte V. I., Martin Raymondi D., Isasti Aizpurua G., Marin F., Nieto J. A., Fernandez Portales J., Alvarez Garcia P., Torstensson I., Cederin B., Kalm T., Rosenqvist U., Thulin J., Hajimirsadeghi A., Crisby M., Manoj A., Bakhai A., Mistri A., Krishnan M., Kumar S., Kirubakaran S., Thomas H., Camm J., Ahmed F., Ross A. M., Barry K., Stockwell R., Broadley A., Mamun M., Chatterjee K., Cooke J., McCready J., Dutta D., John K., Pandya P., Howlett R., Vinson P., Foley P., Bruce D., Dixit A., Broughton D., Taylor J., Schilling R., Leon K., Saeed K., Shaheen S., Tawfik M., Mortadda A., Seleem M., Aly M. S. I., Kazamel G., Elbadry M., Kamal S., Hassan M., Mostafa M., Medhat M. E. S., Ghaleb R., Taha M. O., Daoud I., Al Din H., Imam A. M., El Hameed M. A., Al-Murayeh M., Akhtar N., Matto B. M., Ghani M. A., Amoudi O. A., Morsy M. M., Bashir A. A. F., Al Hossni Y. M., Al Ghamdi B., Mir S., Dardir D., Masswary A., Al Shehri A. R., Iqbal J., Almansori M. A. J., Venkitachalam C. G., Kurian J., Rao J., Aisheh A., Albawab A. A., Subbaraman B., Amanat A., Esfehani K. J., Lochan R., Bin Brek A., Mittal B., Ghazi Y., Krishna M., Tabatabaei S. B., Thoppil P. S., Nasim S., El Khider Nour S., Barros P., Almeida A. P., Andrade M., Garbelini B., Silvestrini T. L., Alves A. R., De Lima C. E. B., Kormann A., De Lima G. G., Halperin C., Salvadori Junior D., Freitas A. F., Gemelli J. R., Ornelas C. E., Dantas J. M. M., Aziz J. L., Backes L. M., Barroso W. S., Paiva M. S., De Figueiredo Neto J. A., Dos Santos F. R., De Lima Neto J. A., Bergo R., Salvador Junior P. R., Lopez A. G., Alva J. C. P., Gamba M. A. A., Padilla-Padilla F. G., Ruiz A. E. B., Berlingieri J., Bakbak A., Gupta M., Saunders K., Costa-Vitali A., Beaudry P. R., Bhargava R., Khaykin Y., Healey J. S., Crystal E., Nadeau Dhillon, Begg A., Anderson C., Baveja S., Cross D., Catanchin A., Brieger D., Lim K. T., Davidson P., Tan R., Bhindi R., Hickey J., Layland J., Bloch M., Itty C., Singh B., Carroll P., Lee A., Starmer G., and Lehman R.

Abstract

Background: Real-world data on non-vitamin K oral anticoagulants (NOACs) are essential in determining whether evidence from randomised controlled clinical trials translate into meaningful clinical benefits for patients in everyday practice. RIVER (RIVaroxaban Evaluation in Real life setting) is an ongoing international, prospective registry of patients with newly diagnosed non-valvular atrial fibrillation (NVAF) and at least one investigator-determined risk factor for stroke who received rivaroxaban as an initial treatment for the prevention of thromboembolic stroke. The aim of this paper is to describe the design of the RIVER registry and baseline characteristics of patients with newly diagnosed NVAF who received rivaroxaban as an initial treatment. Methods and results: Between January 2014 and June 2017, RIVER investigators recruited 5072 patients at 309 centres in 17 countries. The aim was to enroll consecutive patients at sites where rivaroxaban was already routinely prescribed for stroke prevention. Each patient is being followed up prospectively for a minimum of 2-years. The registry will capture data on the rate and nature of all thromboembolic events (stroke / systemic embolism), bleeding complications, all-cause mortality and other major cardiovascular events as they occur. Data quality is assured through a combination of remote electronic monitoring and onsite monitoring (including source data verification in 10% of cases). Patients were mostly enrolled by cardiologists (n = 3776, 74.6%), by internal medicine specialists 14.2% (n = 718) and by primary care/general practice physicians 8.2% (n = 417). The mean (SD) age of the population was 69.5 (11.0) years, 44.3% were women. Mean (SD) CHADS2 score was 1.9 (1.2) and CHA2DS2-VASc scores was 3.2 (1.6). Almost all patients (98.5%) were prescribed with once daily dose of rivaroxaban, most commonly 20 mg (76.5%) and 15 mg (20.0%) as their initial treatment; 17.9% of patients received concomitant antiplatelet the

Published
2019

34. Validation of lean transformation sustainability assessment tool for manufacturing industry: Experts' insights.

Author

Osman, A. A., Lim, K. T., Roslin, E. N., Ismail, J., Rahim, Shayfull Zamree Abd, Saad, Mohd Nasir Mat, Abdullah, Mohd Mustafa Al Bakri, Tahir, Muhammad Faheem Mohd, and Mortar, Nurul Aida Mohd

Subjects
*TEST validity, *LEAN management, *MANUFACTURING industries, *SUSTAINABILITY
Abstract

Transformation from traditional mass and batch manufacturing into lean manufacturing has helped many organisations to become more successful in their business. However, there are facts and figures that show most manufacturing organisations have failed to sustain this success in the long run. One of the reason is, the lack of effective measurement criteria to assess their progress in lean transformation. The purpose of this article was to develop a valid assessment tool that measures manufacturing organisations' lean transformation sustainability level. An assessment tool in the form of survey questionnaire was developed and tested for content validity using a panel of ten experts. An item content validity index was calculated for each indicator measuring lean transformation sustainability. Items with content validity indexes greater than 0.80 were retained and item with lower content validity index were discarded. The assessment tool has evidence of content validity and will need further test using statistical techniques to determine construct validity and reliability. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
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37. LSST data management software development practices and tools

Author

Jenness, Timothy, primary, Economou, Frossie, primary, O'Mullane, William, primary, Lim, K-T, primary, Hoblitt, Joshua C., primary, Sick, Jonathan, primary, Thornton, Adam, primary, Hernandez, Fabio, primary, Findeisen, Krzysztof, primary, Pietrowicz, Stephen R., primary, Schellart, Pim, primary, Owen, Russell, primary, Krughoff, K. Simon, primary, Lupton, Robert H., primary, Bosch, James, primary, Mueller, Fritz, primary, Swinbank, John, primary, Kantor, Jeffrey, primary, Parejko, John K., primary, Price, Paul, primary, and van Klaveren, Brian, primary

Published
2018
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42. Investigating interoperability of the LSST Data Management software stack with Astropy

Author

Chiozzi, Gianluca, Guzman, Juan C., Jenness, Tim, Bosch, James, Owen, Russell, Parejko, John, Sick, Jonathan, Swinbank, John, de Val-Borro, Miguel, Dubois-Felsmann, Gregory, Lim, K. T., Lupton, Robert H., Schellart, Pim, Krughoff, K. Simon, Tollerud, Erik J., Chiozzi, Gianluca, Guzman, Juan C., Jenness, Tim, Bosch, James, Owen, Russell, Parejko, John, Sick, Jonathan, Swinbank, John, de Val-Borro, Miguel, Dubois-Felsmann, Gregory, Lim, K. T., Lupton, Robert H., Schellart, Pim, Krughoff, K. Simon, and Tollerud, Erik J.

Abstract

The Large Synoptic Survey Telescope (LSST) will be an 8.4m optical survey telescope sited in Chile and capable of imaging the entire sky twice a week. The data rate of approximately 15TB per night and the requirements to both issue alerts on transient sources within 60 seconds of observing and create annual data releases means that automated data management systems and data processing pipelines are a key deliverable of the LSST construction project. The LSST data management software has been in development since 2004 and is based on a C++ core with a Python control layer. The software consists of nearly a quarter of a million lines of code covering the system from fundamental WCS and table libraries to pipeline environments and distributed process execution. The Astropy project began in 2011 as an attempt to bring together disparate open source Python projects and build a core standard infrastructure that can be used and built upon by the astronomy community. This project has been phenomenally successful in the years since it has begun and has grown to be the de facto standard for Python software in astronomy. Astropy brings with it considerable expectations from the community on how astronomy Python software should be developed and it is clear that by the time LSST is fully operational in the 2020s many of the prospective users of the LSST software stack will expect it to be fully interoperable with Astropy. In this paper we describe the overlap between the LSST science pipeline software and Astropy software and investigate areas where the LSST software provides new functionality. We also discuss the possibilities of re-engineering the LSST science pipeline software to build upon Astropy, including the option of contributing affliated packages.

Published
2016

43. Virtual reality environments for health professional education

Author

Saxena, N., Kyaw, B. M., Vseteckova, J., Dev, P., Paul, P., Lim, K. T. K., Kononowicz, A., Masiello, Italo, Tudor Car, L., Nikolaou, C. K., Zary, N., Car, J., Saxena, N., Kyaw, B. M., Vseteckova, J., Dev, P., Paul, P., Lim, K. T. K., Kononowicz, A., Masiello, Italo, Tudor Car, L., Nikolaou, C. K., Zary, N., and Car, J.

Abstract

Withdrawn 2018

Published
2016
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44. Physical, Chemical, and Biological Methods for the Removal of Arsenic Compounds

Author

Lim, K. T., Shukor, M. Y., and Wasoh, H.

Subjects
inorganic chemicals, Article Subject
Abstract

Arsenic is a toxic metalloid which is widely distributed in nature. It is normally present as arsenate under oxic conditions while arsenite is predominant under reducing condition. The major discharges of arsenic in the environment are mainly due to natural sources such as aquifers and anthropogenic sources. It is known that arsenite salts are more toxic than arsenate as it binds with vicinal thiols in pyruvate dehydrogenase while arsenate inhibits the oxidative phosphorylation process. The common mechanisms for arsenic detoxification are uptaken by phosphate transporters, aquaglyceroporins, and active extrusion system and reduced by arsenate reductases via dissimilatory reduction mechanism. Some species of autotrophic and heterotrophic microorganisms use arsenic oxyanions for their regeneration of energy. Certain species of microorganisms are able to use arsenate as their nutrient in respiratory process. Detoxification operons are a common form of arsenic resistance in microorganisms. Hence, the use of bioremediation could be an effective and economic way to reduce this pollutant from the environment.

Published
2014
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45. Investigating interoperability of the LSST data management software stack with Astropy

Author

Jenness, Tim, additional, Bosch, James, additional, Owen, Russell, additional, Parejko, John, additional, Sick, Jonathan, additional, Swinbank, John, additional, de Val-Borro, Miguel, additional, Dubois-Felsmann, Gregory, additional, Lim, K.-T., additional, Lupton, Robert H., additional, Schellart, Pim, additional, Krughoff, K. S., additional, and Tollerud, Erik J., additional

Published
2016
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46. LSST Data Products: Enabling LSST Science

Author

Juric, Mario, Kantor, J., Axelrod, T. S., Dubois-Felsmann, G. P., Becla, J., Lim, K-T, and Lupton, R.

Subjects
LSST, Astronomy
Abstract

The Large Synoptic Survey Telescope (LSST; http://lsst.org) is a planned, large-aperture, wide-field, ground-based telescope that will survey half the sky every few nights in six optical bands from 320 to 1050 nm. It will explore a wide range of astrophysical questions, from studies of the Solar System, to examining the nature of dark energy. LSST is an integrated survey system. The observatory, telescope, camera and data management systems will be built to conduct the LSST survey and will not support 'PI mode' in the classical sense. Instead, the ultimate, science-enabling, deliverable of LSST will be the fully reduced data. This poster presents the baseline design and contents of LSST data products. There will be three main categories. "Level 1" data products will be generated continuously every observing night and include measurements such as alerts to objects that have changed brightness or position. They will be broadcast world-wide using VO protocols. "Level 2" data products will be made available as annual Data Releases and will include images and measurements of quantities such as positions, fluxes, and shapes, as well as variability information such as orbital parameters for moving objects and an appropriate compact description of light curves. The exact contents of Level 2 products will be set by the desire to minimize the necessity to independently reprocess the image data. Finally, approximately 10% of LSST's computing capability will be made available to the community for generation of "Level 3" data products. These will be used to perform custom analyses not fully enabled by Level 1/2, while taking advantage of co-location of computation with the entire LSST data set.

Published
2013
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