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Antonis Armoundas

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Antonis A Armoundas; Conor D Barrett; E Kevin Heist; Shawna Laferriere; Theofanie Mela; Naveen Sajja; Omid Sayadi; Jagmeet P Singh; Eric H Weiss; Faisal M Merchant
A novel pacing method to suppress repolarization alternans in vivo: implications for arrhythmia prevention.
Faisal M Merchant; Roberto F E Pedretti; Jorge A Salerno-Uriarte; Cheryl Bartone; Paul S Chan; Theodore Chow; Richard J Cohen; Stefan H Hohnloser; Takanori Ikeda; Antonis A Armoundas
Clinical utility of microvolt T-wave alternans testing in identifying patients at high or low risk of sudden cardiac death.
Vivek Iyer; Victoria Heller; Antonis A Armoundas
Altered spatial calcium regulation enhances electrical heterogeneity in the failing canine left ventricle: implications for electrical instability.

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2013: Antonis A Armoundas; Conor D Barrett; E Kevin Heist; Shawna Laferriere; Theofanie Mela; Naveen Sajja; Omid Sayadi; Jagmeet P Singh; Eric H Weiss; Faisal M Merchant
A novel pacing method to suppress repolarization alternans in vivo: implications for arrhythmia prevention.
Heart rhythm : the official journal of the Heart Rhythm Society 2013;10(4):564-72.
2012: Faisal M Merchant; Roberto F E Pedretti; Jorge A Salerno-Uriarte; Cheryl Bartone; Paul S Chan; Theodore Chow; Richard J Cohen; Stefan H Hohnloser; Takanori Ikeda; Antonis A Armoundas
Clinical utility of microvolt T-wave alternans testing in identifying patients at high or low risk of sudden cardiac death.
Heart rhythm : the official journal of the Heart Rhythm Society 2012;9(8):1256-64.e2.
2012: Vivek Iyer; Victoria Heller; Antonis A Armoundas
Altered spatial calcium regulation enhances electrical heterogeneity in the failing canine left ventricle: implications for electrical instability.
Journal of applied physiology (Bethesda, Md. : 1985) 2012;112(6):944-55.
2012: Antonis A Armoundas; Theofanie Mela; Faisal M Merchant
On the estimation of T-wave alternans using the spectral fast fourier transform method.
Heart rhythm : the official journal of the Heart Rhythm Society 2012;9(3):449-56.
2012: Faisal M Merchant; Antonis A Armoundas
Role of substrate and triggers in the genesis of cardiac alternans, from the myocyte to the whole heart: implications for therapy.
Circulation 2012;125(3):539-49.
2011: Eric H Weiss; Andre d'Avila; Lori Foley; Theofanie Mela; Faisal M Merchant; Vivekanand Reddy; Jeremy N Ruskin; Jagmeet P Singh; Antonis A Armoundas
A novel lead configuration for optimal spatio-temporal detection of intracardiac repolarization alternans.
Circulation. Arrhythmia and electrophysiology 2011;4(3):407-17.
2010: Lian-sheng Guo; Xu Zhou; Yan-Hui Li; Jun Cai; Dong-Mei Wei; Liang Shi; Gang Yang; Antonis A Armoundas; Xin-Chun Yang
Alcohol ablation at the posterior papillary muscle prevents ventricular fibrillation in swine without affecting mitral valve function.
Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology 2010;12(12):1781-6.
2010: Felix T Kurz; Miguel A Aon; Brian O'Rourke; Antonis A Armoundas
Wavelet analysis reveals heterogeneous time-dependent oscillations of individual mitochondria.
American journal of physiology. Heart and circulatory physiology 2010;299(5):H1736-40.
2010: Felix T Kurz; Miguel A Aon; Brian O'Rourke; Antonis A Armoundas
Spatio-temporal oscillations of individual mitochondria in cardiac myocytes reveal modulation of synchronized mitochondrial clusters.
Proceedings of the National Academy of Sciences of the United States of America 2010;107(32):14315-20.
2010: Demosthenes Katritsis; Faisal M Merchant; Theofanie Mela; Jagmeet P Singh; E Kevin Heist; Antonis A Armoundas
Catheter ablation of atrial fibrillation the search for substrate-driven end points.
Journal of the American College of Cardiology 2010;55(21):2293-8.
2009: Antonis A Armoundas
Discordant calcium transient and action potential alternans in a canine left-ventricular myocyte.
IEEE transactions on bio-medical engineering 2009;56(9):2340-4.
2009: Maya E Barley; Kristen J Choppy; Anna M Galea; Antonis A Armoundas; Tamara S Rosbury; Gordon B Hirschman; Richard J Cohen
Validation of a novel catheter guiding method for the ablative therapy of ventricular tachycardia in a phantom model.
IEEE transactions on bio-medical engineering 2009;56(3):907-10.
2009: Maya E Barley; Antonis A Armoundas; Richard J Cohen
A method for guiding ablation catheters to arrhythmogenic sites using body surface electrocardiographic signals.
IEEE transactions on bio-medical engineering 2009;56(3):810-9.
2009: Yutaka Fukuoka; Thom F Oostendorp; Antonis A Armoundas
Method for guiding the ablation catheter to the ablation site: a simulation and experimental study.
Medical & biological engineering & computing 2009;47(3):267-78.
2009: Antonis A Armoundas
Mechanism of abnormal sarcoplasmic reticulum calcium release in canine left-ventricular myocytes results in cellular alternans.
IEEE transactions on bio-medical engineering 2009;56(2):220-8.
2008: Isabelle Deschênes; Antonis A Armoundas; Steven P Jones; Gordon F Tomaselli
Post-transcriptional gene silencing of KChIP2 and Navbeta1 in neonatal rat cardiac myocytes reveals a functional association between Na and Ito currents.
Journal of molecular and cellular cardiology 2008;45(3):336-46.
2007: Antonis A Armoundas; Jochen Rose; Rajesh Aggarwal; Bruno D Stuyvers; Brian O'Rourke; David A Kass; Eduardo Marban; Stephen R Shorofsky; Gordon F Tomaselli; C William Balke
Cellular and molecular determinants of altered Ca2+ handling in the failing rabbit heart: primary defects in SR Ca2+ uptake and release mechanisms.
American journal of physiology. Heart and circulatory physiology 2007;292(3):H1607-18.
2007: Vivek Iyer; Roger J Hajjar; Antonis A Armoundas
Mechanisms of abnormal calcium homeostasis in mutations responsible for catecholaminergic polymorphic ventricular tachycardia.
Circulation research 2007;100(2):e22-31.
2006: Yutaka Fukuoka; Thom F Oostendorp; Derin A Sherman; Antonis A Armoundas
Applicability of the single equivalent moving dipole model in an infinite homogeneous medium to identify cardiac electrical sources: a computer simulation study in a realistic anatomic geometry torso model.
IEEE transactions on bio-medical engineering 2006;53(12 Pt 1):2436-44.
2006: Vivek Iyer; Antonis A Armoundas
Unraveling the mechanisms of catecholaminergic polymorphic ventricular tachycardia.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2006;Suppl():6761-4.
2005: Antonis A Armoundas; Stefan H Hohnloser; Takanori Ikeda; Richard J Cohen
Can microvolt T-wave alternans testing reduce unnecessary defibrillator implantation?
Nature clinical practice. Cardiovascular medicine 2005;2(10):522-8.
2005: Fadi G Akar; Richard C Wu; George J Juang; Yanli Tian; Mirka Burysek; Deborah DiSilvestre; Wei Xiong; Antonis A Armoundas; Gordon F Tomaselli
Molecular mechanisms underlying K+ current downregulation in canine tachycardia-induced heart failure.
American journal of physiology. Heart and circulatory physiology 2005;288(6):H2887-96.
2005: Jochen Rose; Antonis A Armoundas; Yanli Tian; Deborah DiSilvestre; Miroslava Burysek; Victoria L Halperin; Brian O'Rourke; David A Kass; Eduardo Marban; Gordon F Tomaselli
Molecular correlates of altered expression of potassium currents in failing rabbit myocardium.
American journal of physiology. Heart and circulatory physiology 2005;288(5):H2077-87.
2004: Antonis A Armoundas; Christine M Albert; Richard J Cohen; Theofanie Mela
Utility of implantable cardioverter defibrillator electrograms to estimate repolarization alternans preceding a tachyarrhythmic event.
Journal of cardiovascular electrophysiology 2004;15(5):594-7.
2004: Fadi G Akar; Richard C Wu; Isabelle Deschenes; Antonis A Armoundas; Valentino Piacentino; Steven R Houser; Gordon F Tomaselli
Phenotypic differences in transient outward K+ current of human and canine ventricular myocytes: insights into molecular composition of ventricular Ito.
American journal of physiology. Heart and circulatory physiology 2004;286(2):H602-9.
2003: Antonis A Armoundas; Andrew B Feldman; Ramakrishna Mukkamala; Bin He; Thomas J Mullen; Paul A Belk; Yueh Z Lee; Richard J Cohen
Statistical accuracy of a moving equivalent dipole method to identify sites of origin of cardiac electrical activation.
IEEE transactions on bio-medical engineering 2003;50(12):1360-70.
2003: Antonis A Armoundas; Ion A Hobai; Gordon F Tomaselli; Raimond L Winslow; Brian O'Rourke
Role of sodium-calcium exchanger in modulating the action potential of ventricular myocytes from normal and failing hearts.
Circulation research 2003;93(1):46-53.
2003: Antonis A Armoundas; Andrew B Feldman; Ramakrishna Mukkamala; Richard J Cohen
A single equivalent moving dipole model: an efficient approach for localizing sites of origin of ventricular electrical activation.
Annals of biomedical engineering 2003;31(5):564-76.
2002: Antonis A Armoundas; Gordon F Tomaselli; Hans D Esperer
Pathophysiological basis and clinical application of T-wave alternans.
Journal of the American College of Cardiology 2002;40(2):207-17.
2002: Reza Mazhari; H Bradley Nuss; Antonis A Armoundas; Raimond L Winslow; Eduardo Marban
Ectopic expression of KCNE3 accelerates cardiac repolarization and abbreviates the QT interval.
The Journal of clinical investigation 2002;109(8):1083-90.
2002: Antonis A Armoundas; Kihwan Ju; Nikhil Iyengar; Jørgen K Kanters; Philip J Saul; Richard J Cohen; Ki H Chon
A stochastic nonlinear autoregressive algorithm reflects nonlinear dynamics of heart-rate fluctuations.
Annals of biomedical engineering 2002;30(2):192-201.
2001: Antonis A Armoundas; R Wu; George J Juang; Eduardo Marban; Gordon F Tomaselli
Electrical and structural remodeling of the failing ventricle.
Pharmacology & therapeutics 2001;92(2-3):213-30.
2001: Antonis A Armoundas; Andrew B Feldman; D A Sherman; Richard J Cohen
Applicability of the single equivalent point dipole model to represent a spatially distributed bio-electrical source.
Medical & biological engineering & computing 2001;39(5):562-70.
2000: Antonis A Armoundas; T Nanke; Richard J Cohen
Images in cardiovascular medicine. T-wave alternans preceding torsade de pointes ventricular tachycardia.
Circulation 2000;101(21):2550.
2000: Yutaka Fukuoka; Antonis A Armoundas; Thom F Oostendorp; Richard J Cohen
Accuracy of a single equivalent moving dipole model in a realistic anatomic geometry torso model.
Computers in cardiology 2000;27():439-42.
1999: Ki H Chon; D Hoyer; Antonis A Armoundas; Niels-Henrik Holstein-Rathlou; D J Marsh
Robust nonlinear autoregressive moving average model parameter estimation using stochastic recurrent artificial neural networks.
Annals of biomedical engineering 1999;27(4):538-47.
1998: Antonis A Armoundas; M Osaka; Theofanie Mela; D S Rosenbaum; Jeremy N Ruskin; H Garan; Richard J Cohen
T-wave alternans and dispersion of the QT interval as risk stratification markers in patients susceptible to sustained ventricular arrhythmias.
The American journal of cardiology 1998;82(9):1127-9, A9.
1998: Antonis A Armoundas; D S Rosenbaum; J N Ruskin; H Garan; Richard J Cohen
Prognostic significance of electrical alternans versus signal averaged electrocardiography in predicting the outcome of electrophysiological testing and arrhythmia-free survival.
Heart (British Cardiac Society) 1998;80(3):251-6.
1997: Ki H Chon; Ramakrishna Mukkamala; Karin Toska; Thomas J Mullen; Antonis A Armoundas; Richard J Cohen
Linear and nonlinear system identification of autonomic heart-rate modulation.
IEEE engineering in medicine and biology magazine : the quarterly magazine of the Engineering in Medicine & Biology Society 1997;16(5):96-105.
1997: Antonis A Armoundas; Richard J Cohen
Clinical utility of T-wave alternans.
Cardiac electrophysiology review 1997;1(3):390-4.