Results 11 to 20 of about 133,758 (181)

Methods of Assessment and Clinical Relevance of QT Dynamics [PDF]

Indian Pacing and Electrophysiology Journal, 2005
The dependence on heart rate of the QT interval has been investigated for many years and several mathematical formulae have been proposed to describe the QT interval/heart rate (or QT interval/RR interval) relationship. While the most popular is Bazett’s
Beata Sredniawa, Agata Musialik-Lydka, Piotr Jarski, Anna Sliwinska, Zbigniew Kalarus   +4 more
doaj   +5 more sources

QT Interval and QT Variability [PDF]

, 2012
Sudden cardiac death (SCD) is among the most common types of mortality in developed countries. It for more deaths each year than the total number of deaths from AIDS, breast cancer, lung cancer and stroke together. SCD accounts for approximately 50% of all deaths from cardiovascular diseases and 20% of total mortality (1).
Bojan Vrtovec, Gregor Poglajen
openaire   +5 more sources

Congenital Short QT Syndrome [PDF]

Indian Pacing and Electrophysiology Journal, 2004
Long QT intervals in the ECG have long been associated with sudden cardiac death. The congenital long QT syndrome was first described in individuals with structurally normal hearts in 1957.1 Little was known about the significance of a short QT ...
Charles Antzelevitch, Johnson Francis
doaj   +2 more sources

Common genetic variation near the phospholamban gene is associated with cardiac repolarisation: meta-analysis of three genome-wide association studies [PDF]

, 2009
To identify loci affecting the electrocardiographic QT interval, a measure of cardiac repolarisation associated with risk of ventricular arrhythmias and sudden cardiac death, we conducted a meta-analysis of three genome-wide association studies (GWAS ...
Andrew D. Paterson, Anna Dominiczak, Arne Pfeufer, Chris Wallace, Christopher Newton-Cheh, Chrysoula Dalageorgou, Dan E. Arking, Daryl Waggott, Dongling Zheng, Eleftheria Zeggini, Folkert W. Asselbergs, Harold Snieder, Ilja M. Nolte, Irina Savelieva, Jingyuan Fu, John Connell, Kenneth Rice, Louise V. Wain, Mark Caulfield, Mark Eijgelsheim, Mark Lathrop, Martin Farrall, Martin Tobin, Morris Brown, Nicholas D. Carter, Nicole Soranzo, Nilesh J. Samani, null null, null null, null null, null null, Panos Deloukas, Patricia B. Munroe, Paul I. W. de Bakker, Rhian Gwilliam, Serena Sanna, Stephen J. Newhouse, Steve Jeffery, Tim D. Spector, Yalda Jamshidi   +39 more
core   +17 more sources

QT interval analysis in type 2 diabetic patients

مجلة كلية الطب, 2011
Background: The electrocardiographic QT interval has been extensively studied in diabetes mellitus. Recently, there has been increasing interest in the relationship between diabetes and QT abnormalities .The QT interval, which is easily obtained from a ...
Kawthar H. Msayer
doaj   +1 more source

Genetic association study of QT interval highlights role for calcium signaling pathways in myocardial repolarization. [PDF]

, 2013
The QT interval, an electrocardiographic measure reflecting myocardial repolarization, is a heritable trait. QT prolongation is a risk factor for ventricular arrhythmias and sudden cardiac death (SCD) and could indicate the presence of the potentially ...
Abecasis, GR, Ackerman, MJ, Adamkova, V, Alonso, A, Arking, DE, Arnar, DO, Asselbergs, FW, Bader, JS, Barc, J, Bardai, A, Beckmann, BM, Behr, ER, Bezzina, CR, Bis, JC, Bobbo, M, Boyer, LA, Bradford, Y, Brandimarto, J, Brion, M, Brown, M, Campbell, H, Cappola, TP, CARe Consortium, Carella, M, Carracedo, A, Caulfield, MJ, Chakravarti, A, Chatel, S, COGENT Consortium, Crotti, L, Cummings, SR, D'Adamo, AP, Dalageorgou, C, Daly, MJ, DCCT/EDIC, de Bakker, PI, de Boer, RA, del Greco M, F, den Hoed, M, Denny, JC, Dominiczak, AF, Dörr, M, Ehret, G, Eijgelsheim, M, Eisele, L, El Mokhtari, NE, Ellinghaus, D, eMERGE Consortium, Emilsson, V, Erbel, R, Evans, DS, Felix, SB, Ferrucci, L, Franco, OH, Franke, A, Franke, L, Frey, N, Fuchsberger, C, Gasparini, P, Ghidoni, A, Gieger, C, Giudicessi, JR, Greiser, KH, Griffin, M, Gudbjartsson, DF, Gudnason, V, Gustafsson, S, Haerting, J, Hamilton, RM, Harris, TB, Hayward, C, Heckbert, SR, Hicks, AA, Hingorani, AD, Hoffmann, P, Hofman, A, Hofman, N, HRGEN Consortium, Huang, H, Hubacek, JA, Hólm, H, Ingelsson, E, Insolia, R, Iorio, A, Isaacs, A, Jamshidi, Y, Johnson, AD, Jula, A, Jöckel, KH, Kao, WH, Kedenko, L, Kellis, M, Kiechl, S, Kivimaki, M, Kluttig, A, Knoflach, M, Kolcic, I, Kontula, KK, Koopmann, TT, Kors, JA, Krijthe, BP, Kronenberg, F, Kumar, RD, Kumari, M, Kyndt, F, Kähönen, M, Kälsch, H, Kääb, S, Lage, K, Lahtinen, AM, Lakatta, EG, Lamina, C, Larson, MG, Launer, LJ, Lee, WK, Lehtimäki, TJ, Lind, L, Liu, Y, Loos, RJ, Lundby, A, Lyytikäinen, LP, Macfarlane, PW, Margulies, K, Marjamaa, A, Markus, MR, Martens, E, Mateo Leach, I, Medeiros-Domingo, A, Meitinger, T, Meyer Zu Schwabedissen, H, Mononen, N, Moravec, CE, Morley, M, Morris, RW, Mulas, A, Munroe, PB, Mühleisen, TW, Müller-Nurasyid, M, Nalls, MA, Naluai, ÅT, Navarro, P, Navis, G, Newhouse, SJ, Newton-Cheh, C, Nicolaides, AN, Nolte, IM, Noseworthy, PA, Nyberg, F, Nöthen, MM, O'Connell, JR, O'Donnell, CJ, Oikarinen, L, Olsen, JV, Oostra, BA, Orrú, M, Padmanabhan, S, Panayiotou, AG, Parsa, A, Paterson, AD, Paulweber, B, Perola, M, Perz, S, Peters, A, Pfeufer, A, Plump, AS, Polašek, O, Porthan, K, Post, WS, Pramstaller, PP, Probst, V, Prucha, H, Psaty, BM, Pulit, SL, Raitakari, OT, Raychaudhuri, S, Ritchie, MD, Roden, DM, Rossin, EJ, Rotter, JI, Rudan, I, Salomaa, V, Samani, NJ, Sanna, S, Scherer, SW, Schlessinger, D, Schott, JJ, Schwartz, PJ, Shuldiner, AR, Sinagra, G, Sinner, MF, Siscovick, DS, Slowikowski, K, Smith, AV, Smith, JG, Snieder, H, Sotoodehnia, N, Spector, TD, Stefansson, K, Strait, JB, Stricker, BH, Strohmer, B, Sundström, J, Syvänen, AC, Tanaka, T, Tarasov, KV, Tester, DJ, Thelle, DS, Thorsteinsdottir, U, Torres, M, Uda, M, Uitterlinden, AG, Ulivi, S, van den Berg, MP, van der Harst, P, van der Vleuten, PA, van Duijn, CM, van Veldhuisen, DJ, Viikari, JS, Völker, U, Waggott, D, Waldenberger, M, Wang, X, Watt, GC, Werdan, K, Whincup, PH, Wild, SH, Wilde, AA, Willeit, J, Wilson, JF, Witteman, JC, Wright, AF, Yin, X, Zelante, L, Zuvich, RL, Ärnlöv, J   +234 more
core   +3 more sources

Increases of QT dispersion, corrected QT dispersion and QT interval in young healthy individuals during Ramadan fasting [PDF]

Acta Medica Iranica, 2003
Ramadan fasting is one of the most important religious duties of Muslims, that its effect on the heart has not been determined yet. Our objective was to evaluate the effect of Ramadan fasting on ventricular repolarization as assessed by QT interval ...
Moradmand S, Moosavi M, Nematipour E, Eslami M, Gharouni M, Balali R, Abdolmotallebi F   +6 more
doaj   +2 more sources

A genome-wide association scan of RR and QT interval duration in 3 European genetically isolated populations:the EUROSPAN project [PDF]

, 2009
We set out to identify common genetic determinants of the length of the RR and QT intervals in 2325 individuals from isolated European populations.We analyzed the heart rate at rest, measured as the RR interval, and the length of the corrected QT ...
,, Aulchenko, Yurii S, Campbell, Harry, Franklin, Christopher S, Gyllensten, Ulf, Hicks, Andrew A, Isaacs, Aaron, Kääb, Stefan, Marroni, Fabio, Meitinger, Thomas, Oostra, Ben A, Pattaro, Cristian, Pfeufer, Arne, Pichler, Irene, Pramstaller, Peter P, Rudan, Igor, van Duijn, Cornelia M, Wild, Sarah H, Wilson, James F, Witteman, Jacqueline C, Wright, Alan F   +20 more
core   +1 more source

Recent heart rate history affects QT interval duration in atrial fibrillation. [PDF]

PLoS ONE, 2017
QT interval prolongation is associated with a risk of polymorphic ventricular tachycardia. QT interval shortens with increasing heart rate and correction for this effect is necessary for meaningful QT interval assessment.
Fady S Riad, Eathar Razak, Samir Saba, Alaa Shalaby, Jan Nemec   +4 more
doaj   +1 more source

QT-RR HYSTERESIS IS CAUSED BY DIFFERENTIAL AUTONOMIC STATES DURING EXERCISE AND RECOVERY [PDF]

, 2012
QT-RR hysteresis is characterized by longer QT intervals at a given RR interval while heart rates are increasing during exercise and shorter QT intervals at the same RR interval while heart rates are decreasing during recovery.
Bergner, Daniel W., Chicos, Alexandru B., Goldberger, Jeffrey J., Ng, Jason, Pelchovitz, Daniel J.   +4 more
core   +1 more source