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Igor Efimov

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Yuriy V Egorov; Alexey V Glukhov; Igor Efimov; Leonid V Rosenshtraukh
Hypothermia-induced spatially discordant action potential duration alternans and arrhythmogenesis in nonhibernating versus hibernating mammals.
Jacob I Laughner; Fu Siong Ng; Matthew S Sulkin; R Martin Arthur; Igor Efimov
Processing and analysis of cardiac optical mapping data obtained with potentiometric dyes.
Jacob I Laughner; Hao Li; Connie C Shao; Song Zhang; Igor Efimov
Mapping cardiac surface mechanics with structured light imaging.

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2012: Yuriy V Egorov; Alexey V Glukhov; Igor Efimov; Leonid V Rosenshtraukh
Hypothermia-induced spatially discordant action potential duration alternans and arrhythmogenesis in nonhibernating versus hibernating mammals.
American journal of physiology. Heart and circulatory physiology 2012;303(8):H1035-46.
2012: Jacob I Laughner; Fu Siong Ng; Matthew S Sulkin; R Martin Arthur; Igor Efimov
Processing and analysis of cardiac optical mapping data obtained with potentiometric dyes.
American journal of physiology. Heart and circulatory physiology 2012;303(7):H753-65.
2012: Jacob I Laughner; Hao Li; Connie C Shao; Song Zhang; Igor Efimov
Mapping cardiac surface mechanics with structured light imaging.
American journal of physiology. Heart and circulatory physiology 2012;303(6):H712-20.
2011: Di Lang; Tatiana Efimova; Alexey V Glukhov; Igor Efimov
Role of Pyk2 in cardiac arrhythmogenesis.
American journal of physiology. Heart and circulatory physiology 2011;301(3):H975-83.
2011: Vadim V Fedorov; Alexey V Glukhov; Deborah Janks; Geran Kostecki; Nader Moazami; Colin G Nichols; Richard B Schuessler; Christina M Ambrosi; Roger Chang; Igor Efimov
Effects of KATP channel openers diazoxide and pinacidil in coronary-perfused atria and ventricles from failing and non-failing human hearts.
Journal of molecular and cellular cardiology 2011;51(2):215-25.
2011: Qing Lou; Vadim Fedorov; Alexey V Glukhov; Nader Moazami; Vladimir G Fast; Igor Efimov
Transmural heterogeneity and remodeling of ventricular excitation-contraction coupling in human heart failure.
Circulation 2011;123(17):1881-90.
2011: Ian D Greener; O Monfredi; S Inada; N J Chandler; James Tellez; A Atkinson; M-A Taube; Rudolf Billeter; Robert Henry Anderson; Igor Efimov; P Molenaar; Sigg Daniel; V Sharma; Mark R Boyett; Halina Dobrzynski
Molecular architecture of the human specialised atrioventricular conduction axis.
Journal of molecular and cellular cardiology 2011;50(4):642-51.
2011: Christina M Ambrosi; Crystal M Ripplinger; Igor Efimov; Vadim Fedorov
Termination of sustained atrial flutter and fibrillation using low-voltage multiple-shock therapy.
Heart rhythm : the official journal of the Heart Rhythm Society 2011;8(1):101-8.
2010: Thomas K Kurian; Igor Efimov
Mechanisms of fibrillation: neurogenic or myogenic? Reentrant or focal? Multiple or single? Still puzzling after 160 years of inquiry.
Journal of cardiovascular electrophysiology 2010;21(11):1274-5.
2010: Vadim Fedorov; Alexey V Glukhov; Roger Chang; Geran Kostecki; Hyuliya Aferol; William J Hucker; Joseph P Wuskell; Leslie M Loew; Richard B Schuessler; Nader Moazami; Igor Efimov
Optical mapping of the isolated coronary-perfused human sinus node.
Journal of the American College of Cardiology 2010;56(17):1386-94.
2010: Vadim Fedorov; Roger Chang; Alexey V Glukhov; Geran Kostecki; Deborah Janks; Richard B Schuessler; Igor Efimov
Complex interactions between the sinoatrial node and atrium during reentrant arrhythmias in the canine heart.
Circulation 2010;122(8):782-9.
2010: Alexey V Glukhov; Vadim V Fedorov; Mark E Anderson; Peter J Mohler; Igor Efimov
Functional anatomy of the murine sinus node: high-resolution optical mapping of ankyrin-B heterozygous mice.
American journal of physiology. Heart and circulatory physiology 2010;299(2):H482-91.
2010: Thomas Kurian; Christina Ambrosi; William Hucker; Vadim V Fedorov; Igor Efimov
Anatomy and electrophysiology of the human AV node.
Pacing and clinical electrophysiology : PACE 2010;33(6):754-62.
2010: Alexey V Glukhov; Vadim V Fedorov; Qing Lou; Vinod K Ravikumar; Paul W Kalish; Richard B Schuessler; Nader Moazami; Igor Efimov
Transmural dispersion of repolarization in failing and nonfailing human ventricle.
Circulation research 2010;106(5):981-91.
2010: Naomi Gronich; Azad Kumar; Yuwei Zhang; Igor Efimov; Nikolai M Soldatov
Molecular remodeling of ion channels, exchangers and pumps in atrial and ventricular myocytes in ischemic cardiomyopathy.
Channels (Austin, Tex.) 2010;4(2):101-7.
2010: Igor Efimov; Vadim Fedorov; Boyoung Joung; Shien Lin
Mapping cardiac pacemaker circuits: methodological puzzles of the sinoatrial node optical mapping.
Circulation research 2010;106(2):255-71.
2010: Igor Efimov; Vadim Fedorov; Alexey V Glukhov; Qing Lou; Christina Ambrosi; Deborah Janks; William J Hucker; Thomas Kurian; Richard B Schuessler; Nader Moazami
Multiscale imaging of the human heart: Building the foundation for human systems physiology and translational medicine.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2010;2010():5177-80.
2010: Jacob I Laughner; Yuanzheng Gong; Benjamen A Filas; Song Zhang; Igor Efimov
Structured light imaging of epicardial mechanics.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2010;2010():5157-60.
2010: Alexey V Glukhov; Thomas P Flagg; Vadim V Fedorov; Igor Efimov; Colin G Nichols
Differential K(ATP) channel pharmacology in intact mouse heart.
Journal of molecular and cellular cardiology 2010;48(1):152-60.
2009: Ivan Cakulev; Igor Efimov; Albert L Waldo
Cardioversion: past, present, and future.
Circulation 2009;120(16):1623-32.
2009: Christina M Ambrosi; Nader Moazami; Andrew M Rollins; Igor Efimov
Virtual histology of the human heart using optical coherence tomography.
Journal of biomedical optics 2009;14(5):054002.
2009: Larisa Tereshchenko; Mitchell N Faddis; Barry Fetics; Karl E Zelik; Igor Efimov; Ronald D Berger
Transient local injury current in right ventricular electrogram after implantable cardioverter-defibrillator shock predicts heart failure progression.
Journal of the American College of Cardiology 2009;54(9):822-8.
2009: Wenwen Li; Crystal M Ripplinger; Qing Lou; Igor Efimov
Multiple monophasic shocks improve electrotherapy of ventricular tachycardia in a rabbit model of chronic infarction.
Heart rhythm : the official journal of the Heart Rhythm Society 2009;6(7):1020-7.
2009: Iu V Egorov; A V Glukhov; V S Artiukhov; Igor Efimov; L V Rozenshtraukh
[Comparative study of cardiac alternans of action potential duration in hypothermia in rabbits and ground squirrels].
Rossiĭskii fiziologicheskiĭ zhurnal imeni I.M. Sechenova / Rossiĭskaia akademiia nauk 2009;95(5):532-42.
2009: Vadim Fedorov; Richard B Schuessler; Matthew Hemphill; Christina M Ambrosi; Roger Chang; Alexandra S Voloshina; Kathy Brown; William J Hucker; Igor Efimov
Structural and functional evidence for discrete exit pathways that connect the canine sinoatrial node and atria.
Circulation research 2009;104(7):915-23.
2009: Raffaella Lombardi; Gabriela Rodriguez; Suet Nee Chen; Crystal M Ripplinger; Wenwen Li; Junjie Chen; James T Willerson; Sandro Betocchi; Samuel A Wickline; Igor Efimov; Ali J Marian
Resolution of established cardiac hypertrophy and fibrosis and prevention of systolic dysfunction in a transgenic rabbit model of human cardiomyopathy through thiol-sensitive mechanisms.
Circulation 2009;119(10):1398-407.
2009: Igor Efimov
Chronaxie of defibrillation: a pathway toward further optimization of defibrillation waveform?
Journal of cardiovascular electrophysiology 2009;20(3):315-7.
2009: Qing Lou; Igor Efimov
Enhanced susceptibility to alternans in a rabbit model of chronic myocardial infarction.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2009;2009():4527-30.
2009: Igor Efimov
Naum Lazarevich Gurvich (1905-1981) and his contribution to the history of defibrillation.
Cardiology journal 2009;16(2):190-3.
2009: Crystal M Ripplinger; Qing Lou; Wenwen Li; Jennifer Hadley; Igor Efimov
Panoramic imaging reveals basic mechanisms of induction and termination of ventricular tachycardia in rabbit heart with chronic infarction: implications for low-voltage cardioversion.
Heart rhythm : the official journal of the Heart Rhythm Society 2009;6(1):87-97.
2009: Kent A Mowrey; Igor Efimov; Yuanna Cheng
Membrane time constant during internal defibrillation strength shocks in intact heart: effects of Na+ and Ca2+ channel blockers.
Journal of cardiovascular electrophysiology 2009;20(1):85-92.
2008: Vadim Fedorov; Alexey V Glukhov; Sangita Sudharshan; Yuri Egorov; Leonid V Rosenshtraukh; Igor Efimov
Electrophysiological mechanisms of antiarrhythmic protection during hypothermia in winter hibernating versus nonhibernating mammals.
Heart rhythm : the official journal of the Heart Rhythm Society 2008;5(11):1587-96.
2008: Qing Lou; Crystal M Ripplinger; Philip V Bayly; Igor Efimov
Quantitative panoramic imaging of epicardial electrical activity.
Annals of biomedical engineering 2008;36(10):1649-58.
2008: Seok C Kim; Amit Vasanji; Igor Efimov; Yuanna Cheng
Spatial distribution and extent of electroporation by strong internal shock in intact structurally normal and chronically infarcted rabbit hearts.
Journal of cardiovascular electrophysiology 2008;19(10):1080-9.
2008: William J Hucker; Crystal M Ripplinger; Christine P Fleming; Vadim V Fedorov; Andrew M Rollins; Igor Efimov
Bimodal biophotonic imaging of the structure-function relationship in cardiac tissue.
Journal of biomedical optics 2008;13(5):054012.
2008: Igor Efimov
Nature versus nurture in cardiac conduction: toward integrative paradigm of cardiac tissue engineering.
Circulation research 2008;103(2):119-21.
2008: Christine P Fleming; Crystal M Ripplinger; Bryan Webb; Igor Efimov; Andrew M Rollins
Quantification of cardiac fiber orientation using optical coherence tomography.
Journal of biomedical optics 2008;13(3):030505.
2008: Jue Li; Ian D Greener; Shin Inada; Vladimir P Nikolski; Mitsuru Yamamoto; Jules C Hancox; Henggui Zhang; Rudolf Billeter; Igor Efimov; Halina Dobrzynski; Mark R Boyett
Computer three-dimensional reconstruction of the atrioventricular node.
Circulation research 2008;102(8):975-85.
2008: Vadim Fedorov; Geran Kostecki; Matt Hemphill; Igor Efimov
Atria are more susceptible to electroporation than ventricles: implications for atrial stunning, shock-induced arrhythmia and defibrillation failure.
Heart rhythm : the official journal of the Heart Rhythm Society 2008;5(4):593-604.
2008: William J Hucker; Vadim Fedorov; Kelley V Foyil; Nader Moazami; Igor Efimov
Images in cardiovascular medicine. Optical mapping of the human atrioventricular junction.
Circulation 2008;117(11):1474-7.
2008: William J Hucker; Megan L McCain; Jacob I Laughner; Paul A Iaizzo; Igor Efimov
Connexin 43 expression delineates two discrete pathways in the human atrioventricular junction.
Anatomical record (Hoboken, N.J. : 2007) 2008;291(2):204-15.
2008: A V Glukhov; Iu V Egorov; Igor Efimov; L V Rozenshtraukh
[Spatiotemporal characteristics of activation of the heart of hibernating and non-hibernating mammals during hypothermia].
Kardiologiia 2008;48(12):34-41.
2008: Vadim Fedorov; Vladimir P Nikolski; Igor Efimov
Effect of electroporation on cardiac electrophysiology.
Methods in molecular biology (Clifton, N.J.) 2008;423():433-48.
2007: Martin J Bishop; Blanca Rodriguez; Fujian Qu; Igor Efimov; David J Gavaghan; Natalia Trayanova
The role of photon scattering in optical signal distortion during arrhythmia and defibrillation.
Biophysical journal 2007;93(10):3714-26.
2007: Crystal M Ripplinger; Wenwen Li; Jennifer Hadley; Junjie Chen; Florence Rothenberg; Raffaella Lombardi; Samuel A Wickline; Ali J Marian; Igor Efimov
Enhanced transmural fiber rotation and connexin 43 heterogeneity are associated with an increased upper limit of vulnerability in a transgenic rabbit model of human hypertrophic cardiomyopathy.
Circulation research 2007;101(10):1049-57.
2007: William J Hucker; Vladimir P Nikolski; Igor Efimov
Autonomic control and innervation of the atrioventricular junctional pacemaker.
Heart rhythm : the official journal of the Heart Rhythm Society 2007;4(10):1326-35.
2007: Michiel van der Heyden; Bart Kok; Evelyn N Kouwenhoven; Oivind Toien; Brian Barnes; Vadim G Fedorov; Igor Efimov; Tobias Opthof
Cloning, sequence analysis and phylogeny of connexin43 isolated from American black bear heart.
DNA sequence : the journal of DNA sequencing and mapping 2007;18(5):380-4.
2007: Benjamen A Filas; Igor Efimov; Larry A Taber
Optical coherence tomography as a tool for measuring morphogenetic deformation of the looping heart.
Anatomical record (Hoboken, N.J. : 2007) 2007;290(9):1057-68.
2007: William J Hucker; Vinod Sharma; Vladimir P Nikolski; Igor Efimov
Atrioventricular conduction with and without AV nodal delay: two pathways to the bundle of His in the rabbit heart.
American journal of physiology. Heart and circulatory physiology 2007;293(2):H1122-30.
2007: Kyungmoo Ryu; Li Li; Celeen M Khrestian; Naomichi Matsumoto; Jayakumar Sahadevan; Mary L Ruehr; David Van Wagoner; Igor Efimov; Albert L Waldo
Effects of sterile pericarditis on connexins 40 and 43 in the atria: correlation with abnormal conduction and atrial arrhythmias.
American journal of physiology. Heart and circulatory physiology 2007;293(2):H1231-41.
2007: Fujian Qu; Crystal M Ripplinger; Vladimir P Nikolski; Cindy Grimm; Igor Efimov
Three-dimensional panoramic imaging of cardiac arrhythmias in rabbit heart.
Journal of biomedical optics 2007;12(4):044019.
2007: Igor Efimov
Innovation in optical imaging: looking inside the heart.
Heart rhythm : the official journal of the Heart Rhythm Society 2007;4(7):925-6.
2007: Vadim Fedorov; Ilya T Lozinsky; Eugene A Sosunov; Evgeny P Anyukhovsky; Michael R Rosen; C William Balke; Igor Efimov
Application of blebbistatin as an excitation-contraction uncoupler for electrophysiologic study of rat and rabbit hearts.
Heart rhythm : the official journal of the Heart Rhythm Society 2007;4(5):619-26.
2007: Vinod Sharma; Fujian Qu; Vladimir P Nikolski; Paul DeGroot; Igor Efimov
Direct measurements of membrane time constant during defibrillation strength shocks.
Heart rhythm : the official journal of the Heart Rhythm Society 2007;4(4):478-86.
2007: Alexey V Glukhov; Iu V Egorov; Vadim Fedorov; Igor Efimov; LV Rozenshtraukh
[The effect of hypothermia on the wavelength and vulnarability to ventricular arrhythmias in mammals].
Rossiĭskii fiziologicheskiĭ zhurnal imeni I.M. Sechenova / Rossiĭskaia akademiia nauk 2007;93(3):289-99.
2006: Igor Efimov
Connections, connections, connexins: towards systems biology paradigm of cardiac arrhythmia.
Journal of molecular and cellular cardiology 2006;41(6):949-51.
2006: Shin Yoo; Halina Dobrzynski; Vadim Fedorov; Shang-Zhong Xu; Tomoko T Yamanushi; Sandra A Jones; Mitsuru Yamamoto; Vladimir P Nikolski; Igor Efimov; Mark R Boyett
Localization of Na+ channel isoforms at the atrioventricular junction and atrioventricular node in the rat.
Circulation 2006;114(13):1360-71.
2006: Mark Kroll; Igor Efimov; Patrick J Tchou
Present understanding of shock polarity for internal defibrillation: the obvious and non-obvious clinical implications.
Pacing and clinical electrophysiology : PACE 2006;29(8):885-91.
2006: Vadim Fedorov; William J Hucker; Halina Dobrzynski; Leonid V Rosenshtraukh; Igor Efimov
Postganglionic nerve stimulation induces temporal inhibition of excitability in rabbit sinoatrial node.
American journal of physiology. Heart and circulatory physiology 2006;291(2):H612-23.
2006: Alena V Nikolskaya; Vladimir P Nikolski; Igor Efimov
Gene printer: laser-scanning targeted transfection of cultured cardiac neonatal rat cells.
Cell communication & adhesion 2006;13(4):217-22.
2006: Crystal M Ripplinger; Valentin I Krinsky; Vladimir P Nikolski; Igor Efimov
Mechanisms of unpinning and termination of ventricular tachycardia.
American journal of physiology. Heart and circulatory physiology 2006;291(1):H184-92.
2006: Igor Efimov; Vadim Fedorov
Precordial thump and commotio cordis: the yin and yang of mechanoelectric feedback in the heart.
Heart rhythm : the official journal of the Heart Rhythm Society 2006;3(2):187-8.
2006: Igor Efimov; Crystal M Ripplinger
Tornado in a dish: revealing the mechanisms of ventricular arrhythmias in engineered cardiac tissues.
Cardiovascular research 2006;69(2):307-8.
2006: M W Jenkins; F Rothenberg; D Roy; V P Nikolski; Z Hu; M Watanabe; D L Wilson; Igor Efimov; A M Rollins
4D embryonic cardiography using gated optical coherence tomography.
Optics express 2006;14(2):736-48.
2006: Dorin Panescu; Mark Kroll; Igor Efimov; James D Sweeney
Finite element modeling of electric field effects of TASER devices on nerve and muscle.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2006;1():1277-9.
2006: Mark R Boyett; S Inada; S Yoo; Jue Li; J Liu; James Tellez; Ian D Greener; Haruo Honjo; Rudolf Billeter; M Lei; Henggui Zhang; Igor Efimov; Halina Dobrzynski
Connexins in the sinoatrial and atrioventricular nodes.
Advances in cardiology 2006;42():175-97.
2006: Florence Rothenberg; Igor Efimov
Three-dimensional anatomy of the conduction system of the early embryonic rabbit heart.
The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology 2006;288(1):3-7.
2005: Cheri X Deng; Fujian Qu; Vladimir P Nikolski; Yun Zhou; Igor Efimov
Fluorescence imaging for real-time monitoring of high-intensity focused ultrasound cardiac ablation.
Annals of biomedical engineering 2005;33(10):1352-9.
2005: William J Hucker; Vladimir P Nikolski; Igor Efimov
Optical mapping of the atrioventricular junction.
Journal of electrocardiology 2005;38(4 Suppl):121-5.
2005: Vadim Fedorov; Li Li; Alexey V Glukhov; Irina Shishkina; Rubin R Aliev; Tatiana Mikheeva; Vladimir P Nikolski; Leonid V Rosenshtraukh; Igor Efimov
Hibernator Citellus undulatus maintains safe cardiac conduction and is protected against tachyarrhythmias during extreme hypothermia: possible role of Cx43 and Cx45 up-regulation.
Heart rhythm : the official journal of the Heart Rhythm Society 2005;2(9):966-75.
2005: Vladimir P Nikolski; Igor Efimov
Electroporation of the heart.
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 2005;7 Suppl 2():146-54.
2005: Igor Efimov; Vadim Fedorov
Chessboard of atrial fibrillation: reentry or focus? Single or multiple source(s)? Neurogenic or myogenic?
American journal of physiology. Heart and circulatory physiology 2005;289(3):H977-9.
2005: Li Li; Vladimir P Nikolski; Don W Wallick; Igor Efimov; Yuanna Cheng
Mechanisms of enhanced shock-induced arrhythmogenesis in the rabbit heart with healed myocardial infarction.
American journal of physiology. Heart and circulatory physiology 2005;289(3):H1054-68.
2005: Fujian Qu; Li Li; Vladimir P Nikolski; Vinod Sharma; Igor Efimov
Mechanisms of superiority of ascending ramp waveforms: new insights into mechanisms of shock-induced vulnerability and defibrillation.
American journal of physiology. Heart and circulatory physiology 2005;289(2):H569-77.
2005: Blanca Rodríguez; Li Li; James C Eason; Igor Efimov; Natalia Trayanova
Differences between left and right ventricular chamber geometry affect cardiac vulnerability to electric shocks.
Circulation research 2005;97(2):168-75.
2005: Michael Jenkins; Ryan S Wade; Yuanna Cheng; Andrew M Rollins; Igor Efimov
Optical coherence tomography imaging of the purkinje network.
Journal of cardiovascular electrophysiology 2005;16(5):559-60.
2005: Halina Dobrzynski; Jue Li; James Tellez; Ian D Greener; Vladimir P Nikolski; S E Wright; Simon H Parson; Sandra A Jones; Matthew K Lancaster; Mitsuru Yamamoto; Haruo Honjo; Yoshiko Takagishi; Itsuo Kodama; Igor Efimov; Rudolf Billeter; Mark R Boyett
Computer three-dimensional reconstruction of the sinoatrial node.
Circulation 2005;111(7):846-54.
2005: Fujian Qu; Fidel Zarubin; Brian Wollenzier; Vladimir P Nikolski; Igor Efimov
The Gurvich waveform has lower defibrillation threshold than the rectilinear waveform and the truncated exponential waveform in the rabbit heart.
Canadian journal of physiology and pharmacology 2005;83(2):152-60.
2005: LV Rozenshtraukh; Vadim Fedorov; Rubin R Aliev; Alexey V Glukhov; T V Mikheeva; AV Reznik; Igor Efimov
[Pattern of excitation in isolated heart of hibernator ground squirrel Citellus undulatus].
Kardiologiia 2005;45(4):4-10.
2005: Florence Rothenberg; Vladimir P Nikolski; Michiko Watanabe; Igor Efimov
Electrophysiology and anatomy of embryonic rabbit hearts before and after septation.
American journal of physiology. Heart and circulatory physiology 2005;288(1):H344-51.
2004: Florence Rothenberg; Igor Efimov; Michiko Watanabe
Functional imaging of the embryonic pacemaking and cardiac conduction system over the past 150 years: technologies to overcome the challenges.
The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology 2004;280(2):980-9.
2004: Aleksandre T Sambelashvili; Igor Efimov
Dynamics of virtual electrode-induced scroll-wave reentry in a 3D bidomain model.
American journal of physiology. Heart and circulatory physiology 2004;287(4):H1570-81.
2004: Igor Efimov; Vladimir P Nikolski; Florence Rothenberg; Ian D Greener; Jue Li; Halina Dobrzynski; Mark R Boyett
Structure-function relationship in the AV junction.
The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology 2004;280(2):952-65.
2004: Igor Efimov; Vladimir P Nikolski; Guy Salama
Optical imaging of the heart.
Circulation research 2004;95(1):21-33.
2004: Aleksandre T Sambelashvili; Vladimir P Nikolski; Igor Efimov
Virtual electrode theory explains pacing threshold increase caused by cardiac tissue damage.
American journal of physiology. Heart and circulatory physiology 2004;286(6):H2183-94.
2004: Vladimir P Nikolski; Aleksandre T Sambelashvili; V I Krinsky; Igor Efimov
Effects of electroporation on optically recorded transmembrane potential responses to high-intensity electrical shocks.
American journal of physiology. Heart and circulatory physiology 2004;286(1):H412-8.
2004: Yuanna Cheng; Li Li; Vladimir P Nikolski; Don W Wallick; Igor Efimov
Shock-induced arrhythmogenesis is enhanced by 2,3-butanedione monoxime compared with cytochalasin D.
American journal of physiology. Heart and circulatory physiology 2004;286(1):H310-8.
2003: Halina Dobrzynski; Vladimir P Nikolski; Aleksandre T Sambelashvili; Ian D Greener; Mitsuru Yamamoto; Mark R Boyett; Igor Efimov
Site of origin and molecular substrate of atrioventricular junctional rhythm in the rabbit heart.
Circulation research 2003;93(11):1102-10.
2003: Igor Efimov; Vladimir P Nikolski
Diastolic shocking experience: do virtual electrodes exist only during systole?
Journal of cardiovascular electrophysiology 2003;14(11):1223-4.
2003: Li Li; Vladimir P Nikolski; Igor Efimov
Effects of lidocaine on shock-induced vulnerability.
Journal of cardiovascular electrophysiology 2003;14(10 Suppl):S237-48.
2003: Aleksandre T Sambelashvili; Vladimir P Nikolski; Igor Efimov
Nonlinear effects in subthreshold virtual electrode polarization.
American journal of physiology. Heart and circulatory physiology 2003;284(6):H2368-74.
2003: Igor Efimov
Fibrillation or neurillation: back to the future in our concepts of sudden cardiac death?
Circulation research 2003;92(10):1062-4.
2003: Vladimir P Nikolski; Sandra A Jones; Matthew K Lancaster; Mark R Boyett; Igor Efimov
Cx43 and dual-pathway electrophysiology of the atrioventricular node and atrioventricular nodal reentry.
Circulation research 2003;92(4):469-75.
2003: Stephane Garrigue; Sylvain Reuter; Igor Efimov; Todor N Mazgalev; Pierre Jaïs; Michel Haïssaguerre; Jacques Clementy
Optical mapping technique applied to biventricular pacing: potential mechanisms of ventricular arrhythmias occurrence.
Pacing and clinical electrophysiology : PACE 2003;26(1 Pt 2):197-205.
2002: Vladimir P Nikolski; Aleksandre T Sambelashvili; Igor Efimov
Anode-break excitation during end-diastolic stimulation is explained by half-cell double layer discharge.
IEEE transactions on bio-medical engineering 2002;49(10):1217-20.
2002: Igor Efimov
Virtual electrodes in virtual reality of defibrillation.
Journal of cardiovascular electrophysiology 2002;13(7):680-1.
2002: Yuanna Cheng; Kent A Mowrey; Vladimir P Nikolski; Patrick J Tchou; Igor Efimov
Mechanisms of shock-induced arrhythmogenesis during acute global ischemia.
American journal of physiology. Heart and circulatory physiology 2002;282(6):H2141-51.
2002: Cristian Dumitrescu; Prakash Narayan; Igor Efimov; Yuanna Cheng; M Judith Radin; Sylvia A McCune; Ruth A Altschuld
Mechanical alternans and restitution in failing SHHF rat left ventricles.
American journal of physiology. Heart and circulatory physiology 2002;282(4):H1320-6.
2002: Cristian Dumitrescu; Prakash Narayan; Yuanna Cheng; Igor Efimov; Ruth A Altschuld
Phase I and phase II of short-term mechanical restitution in perfused rat left ventricles.
American journal of physiology. Heart and circulatory physiology 2002;282(4):H1311-9.
2002: Vladimir P Nikolski; Aleksandre T Sambelashvili; Igor Efimov
Mechanisms of make and break excitation revisited: paradoxical break excitation during diastolic stimulation.
American journal of physiology. Heart and circulatory physiology 2002;282(2):H565-75.
2002: Aleksandre T Sambelashvili; Igor Efimov
The pinwheel experiment re-revisited.
Journal of theoretical biology 2002;214(2):147-53.
2002: Meghna Gupta; Andrew M Rollins; Joseph A Izatt; Igor Efimov
Imaging of the atrioventricular node using optical coherence tomography.
Journal of cardiovascular electrophysiology 2002;13(1):95.
2001: Y Yamanouchi; Yuanna Cheng; Patrick J Tchou; Igor Efimov
The mechanisms of the vulnerable window: the role of virtual electrodes and shock polarity.
Canadian journal of physiology and pharmacology 2001;79(1):25-33.
2000: A Al-Khadra; Vladimir P Nikolski; Igor Efimov
The role of electroporation in defibrillation.
Circulation research 2000;87(9):797-804.
2000: Igor Efimov
A shocking experience: ionic modulation of virtual electrodes in defibrillation.
Circulation research 2000;87(6):429-30.
2000: Yuanna Cheng; Vladimir P Nikolski; Igor Efimov
Reversal of repolarization gradient does not reverse the chirality of shock-induced reentry in the rabbit heart.
Journal of cardiovascular electrophysiology 2000;11(9):998-1007.
2000: Igor Efimov; Felipe Aguel; Yuanna Cheng; Brian Wollenzier; Natalia Trayanova
Virtual electrode polarization in the far field: implications for external defibrillation.
American journal of physiology. Heart and circulatory physiology 2000;279(3):H1055-70.
2000: Igor Efimov; Yuanna Cheng; Yoshio Yamanouchi; Patrick J Tchou
Direct evidence of the role of virtual electrode-induced phase singularity in success and failure of defibrillation.
Journal of cardiovascular electrophysiology 2000;11(8):861-8.
2000: Vladimir P Nikolski; Igor Efimov
Virtual electrode polarization of ventricular epicardium during bipolar stimulation.
Journal of cardiovascular electrophysiology 2000;11(5):605.
2000: Igor Efimov; R A Gray; B J Roth
Virtual electrodes and deexcitation: new insights into fibrillation induction and defibrillation.
Journal of cardiovascular electrophysiology 2000;11(3):339-53.
1999: Y Cheng; Kent A Mowrey; David Van Wagoner; Patrick J Tchou; Igor Efimov
Virtual electrode-induced reexcitation: A mechanism of defibrillation.
Circulation research 1999;85(11):1056-66.
1999: Igor Efimov; V Sidorov; Yuanna Cheng; Brian Wollenzier
Evidence of three-dimensional scroll waves with ribbon-shaped filament as a mechanism of ventricular tachycardia in the isolated rabbit heart.
Journal of cardiovascular electrophysiology 1999;10(11):1452-62.
1999: Yoshio Yamanouchi; Igor Efimov; Kent A Mowrey; Todor N Mazgalev; Bruce L Wilkoff; Patrick J Tchou
Biventricular shocking leads improve defibrillation efficacy.
Journal of cardiovascular electrophysiology 1999;10(4):561-5.
1998: Yuanna Cheng; David Van Wagoner; Todor N Mazgalev; Patrick J Tchou; Igor Efimov
Voltage-sensitive dye RH421 increases contractility of cardiac muscle.
Canadian journal of physiology and pharmacology 1998;76(12):1146-50.
1998: Igor Efimov
What is the role of the AV node if the AV delay occurs before it?
The American journal of physiology 1998;275(5 Pt 2):H1905-6; author reply H1906-9.
1998: E Entcheva; J Eason; Igor Efimov; Y Cheng; Robert A Malkin; FJ Claydon
Virtual electrode effects in transvenous defibrillation-modulation by structure and interface: evidence from bidomain simulations and optical mapping.
Journal of cardiovascular electrophysiology 1998;9(9):949-61.
1998: Igor Efimov; Todor N Mazgalev
High-resolution, three-dimensional fluorescent imaging reveals multilayer conduction pattern in the atrioventricular node.
Circulation 1998;98(1):54-7.
1998: Igor Efimov; Y Cheng; David Van Wagoner; Todor N Mazgalev; Patrick J Tchou
Virtual electrode-induced phase singularity: a basic mechanism of defibrillation failure.
Circulation research 1998;82(8):918-25.
1998: Guy Salama; Anthony J Kanai; D Huang; Igor Efimov; SD Girouard; David S Rosenbaum
Hypoxia and hypothermia enhance spatial heterogeneities of repolarization in guinea pig hearts: analysis of spatial autocorrelation of optically recorded action potential durations.
Journal of cardiovascular electrophysiology 1998;9(2):164-83.
1997: Patrick J Tchou; Y N Cheng; Kent A Mowrey; Igor Efimov; David Van Wagoner; Todor N Mazgalev
Relation of the atrial input sites to the dual atrioventricular nodal pathways: crossing of conduction curves generated with posterior and anterior pacing.
Journal of cardiovascular electrophysiology 1997;8(10):1133-44.
1997: Igor Efimov; Y N Cheng; Martin Biermann; David Van Wagoner; Todor N Mazgalev; Patrick J Tchou
Transmembrane voltage changes produced by real and virtual electrodes during monophasic defibrillation shock delivered by an implantable electrode.
Journal of cardiovascular electrophysiology 1997;8(9):1031-45.
1997: Yuanna Cheng; Kent A Mowrey; Igor Efimov; David Van Wagoner; Patrick J Tchou; Todor N Mazgalev
Effects of 2,3-butanedione monoxime on atrial-atrioventricular nodal conduction in isolated rabbit heart.
Journal of cardiovascular electrophysiology 1997;8(7):790-802.
1997: Igor Efimov; GJ Fahy; Yuanna Cheng; David Van Wagoner; Patrick J Tchou; Todor N Mazgalev
High-resolution fluorescent imaging does not reveal a distinct atrioventricular nodal anterior input channel (fast pathway) in the rabbit heart during sinus rhythm.
Journal of cardiovascular electrophysiology 1997;8(3):295-306.
1996: Igor Efimov; Bard Ermentrout; D T Huang; G Salama
Activation and repolarization patterns are governed by different structural characteristics of ventricular myocardium: experimental study with voltage-sensitive dyes and numerical simulations.
Journal of cardiovascular electrophysiology 1996;7(6):512-30.
1994: Igor Efimov; D T Huang; J M Rendt; G Salama
Optical mapping of repolarization and refractoriness from intact hearts.
Circulation 1994;90(3):1469-80.
1994: G Salama; Anthony J Kanai; Igor Efimov
Subthreshold stimulation of Purkinje fibers interrupts ventricular tachycardia in intact hearts. Experimental study with voltage-sensitive dyes and imaging techniques.
Circulation research 1994;74(4):604-19.
1991: A Iu Burashnikov; Igor Efimov; V G Fast; A Kh Karasaeva; Arkady M Pertsov
[Isolated right ventricle after coronary perfusion as a model for the study of ischemic and reperfusion-induced arrhythmia in rats].
Kardiologiia 1991;31(7):58-61.