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Todor Mazgalev

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TOP 3
Youhua Zhang; Zoran Popovic; Kenya Kusunose; Todor N Mazgalev
Therapeutic effects of selective atrioventricular node vagal stimulation in atrial fibrillation and heart failure.
Youhua Zhang; Todor N Mazgalev
Atrioventricular node functional remodeling induced by atrial fibrillation.
Youhua Zhang; Todor N Mazgalev
AV nodal dual pathway electrophysiology and Wenckebach periodicity.

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All Publications

2013: Youhua Zhang; Zoran Popovic; Kenya Kusunose; Todor N Mazgalev
Therapeutic effects of selective atrioventricular node vagal stimulation in atrial fibrillation and heart failure.
Journal of cardiovascular electrophysiology 2013;24(1):86-91.
2012: Youhua Zhang; Todor N Mazgalev
Atrioventricular node functional remodeling induced by atrial fibrillation.
Heart rhythm : the official journal of the Heart Rhythm Society 2012;9(9):1419-25.
2011: Youhua Zhang; Todor N Mazgalev
AV nodal dual pathway electrophysiology and Wenckebach periodicity.
Journal of cardiovascular electrophysiology 2011;22(11):1256-62.
2011: Seil Oh; Youhua Zhang; Eue-Keun Choi; Todor N Mazgalev
Botulinum toxin injection in epicardial autonomic ganglia temporarily suppresses vagally mediated atrial fibrillation.
Circulation. Arrhythmia and electrophysiology 2011;4(4):560-5.
2011: Andreu Climent; Maria Guillem; Y Zhang; José Millet; Todor N Mazgalev
Functional mathematical model of dual pathway AV nodal conduction.
American journal of physiology. Heart and circulatory physiology 2011;300(4):H1393-401.
2011: Youhua Zhang; Todor N Mazgalev
Arrhythmias and vagus nerve stimulation.
Heart failure reviews 2011;16(2):147-61.
2010: Andreu Climent; Maria Guillem; Youhua Zhang; José Millet; Todor N Mazgalev
Functional model of dual AV nodal pathway physiology.
Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2010;2010():2646-9.
2009: Youhua Zhang; Zoran B Popovic; Steve Bibevski; Itaf Fakhry; Domenic A Sica; David Van Wagoner; Todor N Mazgalev
Chronic vagus nerve stimulation improves autonomic control and attenuates systemic inflammation and heart failure progression in a canine high-rate pacing model.
Circulation. Heart failure 2009;2(6):692-9.
2009: Junko Asada-Kamiguchi; Tomotsugu Tabata; Zoran Popovic; Neil L Greenberg; Yong Jin Kim; Mario J. Garcia; Don W Wallick; Kent A Mowrey; Shaowei Zhuang; Youhua Zhang; Todor N Mazgalev; James David Thomas; Richard A Grimm
Non-invasive assessment of left ventricular relaxation during atrial fibrillation using mitral flow propagation velocity.
European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology 2009;10(7):826-32.
2009: Youhua Zhang; Todor N Mazgalev
Cardiac vagal stimulation eliminates detrimental tachycardia effects of dobutamine used for inotropic support.
The Annals of thoracic surgery 2009;88(1):117-22.
2009: Todor N Mazgalev
The specialized rings and the endless saga of the AV node puzzle.
Heart rhythm : the official journal of the Heart Rhythm Society 2009;6(5):681-3.
2009: Youhua Zhang; Todor N Mazgalev
Site of origin of the monophasic action potential: which electrode, the "potassium" or the "indifferent," records monophasic action potential?
Heart rhythm : the official journal of the Heart Rhythm Society 2009;6(4):561-3.
2009: Youhua Zhang; Itamar Ilsar; Hani N Sabbah; Tamir Ben David; Todor N Mazgalev
Relationship between right cervical vagus nerve stimulation and atrial fibrillation inducibility: therapeutic intensities do not increase arrhythmogenesis.
Heart rhythm : the official journal of the Heart Rhythm Society 2009;6(2):244-50.
2006: Walid Saliba; Jennifer E Cummings; Seil Oh; Youhua Zhang; Todor N Mazgalev; Robert A Schweikert; J David Burkhardt; Andrea Natale
Novel robotic catheter remote control system: feasibility and safety of transseptal puncture and endocardial catheter navigation.
Journal of cardiovascular electrophysiology 2006;17(10):1102-5.
2006: Seil Oh; Youhua Zhang; Steve Bibevski; Nassir F Marrouche; Andrea Natale; Todor N Mazgalev
Vagal denervation and atrial fibrillation inducibility: epicardial fat pad ablation does not have long-term effects.
Heart rhythm : the official journal of the Heart Rhythm Society 2006;3(6):701-8.
2006: Seil Oh; Fethi Kilicaslan; Youhua Zhang; Oussama Wazni; Todor N Mazgalev; Andrea Natale; Nassir F Marrouche
Avoiding microbubbles formation during radiofrequency left atrial ablation versus continuous microbubbles formation and standard radiofrequency ablation protocols: comparison of energy profiles and chronic lesion characteristics.
Journal of cardiovascular electrophysiology 2006;17(1):72-7.
2005: Youhua Zhang; Hirotsugu Yamada; Steve Bibevski; Shaowei Zhuang; Kent A Mowrey; Don W Wallick; Seil Oh; Todor N Mazgalev
Chronic atrioventricular nodal vagal stimulation: first evidence for long-term ventricular rate control in canine atrial fibrillation model.
Circulation 2005;112(19):2904-11.
2005: Todor N Mazgalev
Drugs, ablation, denervation... and now fish oil: the global war on AF.
Journal of cardiovascular electrophysiology 2005;16(11):1195-9.
2005: Zoran B Popović; Jing Ping Sun; Hirotsugu Yamada; Jeanne K Drinko; Karin Mauer; Neil L Greenberg; Yuanna Cheng; Christine S Moravec; Marc S Penn; Todor N Mazgalev; James David Thomas
Differences in left ventricular long-axis function from mice to humans follow allometric scaling to ventricular size.
The Journal of physiology 2005;568(Pt 1):255-65.
2005: Tomotsugu Tabata; Richard A Grimm; Fabrice Bauer; Kiyotaka Fukamachi; Masami Takagaki; Yoshie Ochiai; Todor N Mazgalev; Bruce L Wilkoff; Patrick M McCarthy; James David Thomas
Giant flow reversal in pulmonary venous flow as a possible mechanism for asynchronous pacing-induced heart failure.
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography 2005;18(7):722-8.
2005: Masami Takagaki; Patrick M McCarthy; Masahiro Inoue; Mina Chung; Jason T Connor; Raymond Dessoffy; Yoshie Ochiai; Michael Howard; Kazuyoshi Doi; Michael W Kopcak; Todor N Mazgalev; Kiyotaka Fukamachi
Myocardial compliance was not altered after acute induction of atrial fibrillation in sheep.
Medical science monitor : international medical journal of experimental and clinical research 2005;11(6):BR147-153.
2005: Todor N Mazgalev
The Sisyphean task of atrioventricular nodal scaling: is the stone at the top of the mountain?
Heart rhythm : the official journal of the Heart Rhythm Society 2005;2(2):197-200.
2004: Zoran B Popović; Hirotsugu Yamada; Kent A Mowrey; Youhua Zhang; Don W Wallick; Richard A Grimm; James David Thomas; Todor N Mazgalev
Frank-Starling mechanism contributes modestly to ventricular performance during atrial fibrillation.
Heart rhythm : the official journal of the Heart Rhythm Society 2004;1(4):482-9.
2004: Youhua Zhang; Todor N Mazgalev
Achieving regular slow rhythm during atrial fibrillation without atrioventricular nodal ablation: selective vagal stimulation plus ventricular pacing.
Heart rhythm : the official journal of the Heart Rhythm Society 2004;1(4):469-75.
2004: Hirotsugu Yamada; Erwan Donal; Yong-Jin Kim; Deborah A Agler; Youhua Zhang; Neil L Greenberg; Todor N Mazgalev; James David Thomas; Richard A Grimm
The pseudorestrictive pattern of transmitral Doppler flow pattern after conversion of atrial fibrillation to sinus rhythm: is atrial or ventricular dysfunction to blame?
Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography 2004;17(8):813-8.
2004: Youhua Zhang; Todor N Mazgalev
Ventricular rate control during atrial fibrillation and AV node modifications: past, present, and future.
Pacing and clinical electrophysiology : PACE 2004;27(3):382-93.
2004: Youhua Zhang; Saroja Bharati; Rabi Sulayman; Kent A Mowrey; Patrick J Tchou; Todor N Mazgalev
Atrioventricular nodal fast pathway modification: mechanism for lack of ventricular rate slowing in atrial fibrillation.
Cardiovascular research 2004;61(1):45-55.
2004: Tomotsugu Tabata; Richard A Grimm; Junko Asada; Zoran Popovic; Hirotsugu Yamada; Neil L Greenberg; Don W Wallick; Youhua Zhang; Shaowei Zhuang; Kent A Mowrey; James David Thomas; Todor N Mazgalev
Determinants of LV diastolic function during atrial fibrillation: beat-to-beat analysis in acute dog experiments.
American journal of physiology. Heart and circulatory physiology 2004;286(1):H145-52.
2003: Yoshio Yamanouchi; Kent A Mowrey; Todor N Mazgalev; Bruce L Wilkoff; Patrick J Tchou
The strength-duration relationship of monophasic waveforms with varying capacitance sizes in external defibrillation.
Pacing and clinical electrophysiology : PACE 2003;26(12):2213-8.
2003: Youhua Zhang; Saroja Bharati; Kent A Mowrey; Todor N Mazgalev
His electrogram alternans reveal dual atrioventricular nodal pathway conduction during atrial fibrillation: the role of slow-pathway modification.
Circulation 2003;107(7):1059-65.
2003: Todor N Mazgalev; Youhua Zhang
The dual pathway electrophysiology of the atrioventricular conduction. A new look at an old phenomenon.
Minerva cardioangiologica 2003;51(1):1-14.
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: Zoran B Popović; Kent A Mowrey; Youhua Zhang; Shaowei Zhuang; Tomotsugu Tabata; Don W Wallick; Richard A Grimm; James David Thomas; Todor N Mazgalev
Slow rate during AF improves ventricular performance by reducing sensitivity to cycle length irregularity.
American journal of physiology. Heart and circulatory physiology 2002;283(6):H2706-13.
2002: Shaowei Zhuang; Youhua Zhang; Kent A Mowrey; Jianbo Li; Tomotsugu Tabata; Don W Wallick; Zoran B Popović; Richard A Grimm; Andrea Natale; Todor N Mazgalev
Ventricular rate control by selective vagal stimulation is superior to rhythm regularization by atrioventricular nodal ablation and pacing during atrial fibrillation.
Circulation 2002;106(14):1853-8.
2002: Masami Takagaki; Patrick M McCarthy; Mina Chung; Jason Connor; Raymond Dessoffy; Yoshie Ochiai; M Howard; K Doi; Michael W Kopcak; Todor N Mazgalev; Kiyotaka Fukamachi
Preload-adjusted maximal power: a novel index of left ventricular contractility in atrial fibrillation.
Heart (British Cardiac Society) 2002;88(2):170-6.
2002: Todor N Mazgalev
Atrioventricular node during atrial fibrillation: is it worth saving?
Journal of cardiovascular electrophysiology 2002;13(7):724-6.
2002: Youhua Zhang; Kent A Mowrey; Shaowei Zhuang; Don W Wallick; Zoran B Popović; Todor N Mazgalev
Optimal ventricular rate slowing during atrial fibrillation by feedback AV nodal-selective vagal stimulation.
American journal of physiology. Heart and circulatory physiology 2002;282(3):H1102-10.
2001: Paul R Roberts; Y Zhang; S Zhuan; Kent A Mowrey; Don W Wallick; DG Hills; Tim R Betts; Stuart Allen; J Ewert; Todor N Mazgalev; John M Morgan
Single capacitive discharge utilizing an auxiliary shock in the coronary venous system reduces the defibrillation threshold.
Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing 2001;5(4):495-503.
2001: Don W Wallick; Youhua Zhang; Tomotsugu Tabata; Shaowei Zhuang; Kent A Mowrey; J Watanabe; Neil L Greenberg; Richard A Grimm; Todor N Mazgalev
Selective AV nodal vagal stimulation improves hemodynamics during acute atrial fibrillation in dogs.
American journal of physiology. Heart and circulatory physiology 2001;281(4):H1490-7.
2001: Youhua Zhang; Saroja Bharati; Kent A Mowrey; Shaowei Zhuang; Patrick J Tchou; Todor N Mazgalev
His electrogram alternans reveal dual-wavefront inputs into and longitudinal dissociation within the bundle of His.
Circulation 2001;104(7):832-8.
2001: Tomotsugu Tabata; Richard A Grimm; Neil L Greenberg; Deborah A Agler; Kent A Mowrey; Don W Wallick; Youhua Zhang; Shaowei Zhuang; Todor N Mazgalev; James David Thomas
Assessment of LV systolic function in atrial fibrillation using an index of preceding cardiac cycles.
American journal of physiology. Heart and circulatory physiology 2001;281(2):H573-80.
2001: Todor N Mazgalev; S Y Ho; Robert Henry Anderson
Anatomic-electrophysiological correlations concerning the pathways for atrioventricular conduction.
Circulation 2001;103(22):2660-7.
2000: Y Yamanouchi; Matthew Fishler; Kent A Mowrey; Bruce L Wilkoff; Todor N Mazgalev; Patrick J Tchou
New approach to biphasic waveforms for internal defibrillation: fully discharging capacitors.
Journal of cardiovascular electrophysiology 2000;11(8):907-12.
2000: Todor N Mazgalev; Patrick J Tchou
Surface potentials from the region of the atrioventricular node and their relation to dual pathway electrophysiology.
Circulation 2000;101(17):2110-7.
1999: S Garrigue; Patrick J Tchou; Todor N Mazgalev
Role of the differential bombardment of atrial inputs to the atrioventricular node as a factor influencing ventricular rate during high atrial rate.
Cardiovascular research 1999;44(2):344-55.
1999: Yoshio Yamanouchi; James E Brewer; K F Olson; Kent A Mowrey; Todor N Mazgalev; Bruce L Wilkoff; Patrick J Tchou
Fully discharging phases. A new approach to biphasic waveforms for external defibrillation.
Circulation 1999;100(8):826-31.
1999: Todor N Mazgalev; S Garrigue; Kent A Mowrey; Yoshio Yamanouchi; Patrick J Tchou
Autonomic modification of the atrioventricular node during atrial fibrillation: role in the slowing of ventricular rate.
Circulation 1999;99(21):2806-14.
1999: S Garrigue; Kent A Mowrey; GJ Fahy; Patrick J Tchou; Todor N Mazgalev
Atrioventricular nodal conduction during atrial fibrillation: role of atrial input modification.
Circulation 1999;99(17):2323-33.
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; 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.
1997: Mark J Niebauer; Bruce L Wilkoff; Yoshio Yamanouchi; Todor N Mazgalev; Kent A Mowrey; Patrick Tchou
Iridium oxide-coated defibrillation electrode: reduced shock polarization and improved defibrillation efficacy.
Circulation 1997;96(10):3732-6.
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: Todor N Mazgalev; Kent A Mowrey; I Efimov; GJ Fahy; David Van Wagoner; Yuanna Cheng; Patrick J Tchou
Mechanism of atrioventricular nodal facilitation in rabbit heart: role of proximal AV node.
The American journal of physiology 1997;273(4 Pt 2):H1658-68.
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: GJ Fahy; I Efimov; Yuanna Cheng; G A Kidwell; David Van Wagoner; Patrick J Tchou; Todor N Mazgalev
Mechanism of atrioventricular nodal facilitation in the rabbit heart: role of the distal AV node.
The American journal of physiology 1997;272(6 Pt 2):H2815-25.
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.
1995: Todor N Mazgalev; P Tchou
Atrioventricular nodal conduction gap and dual pathway electrophysiology.
Circulation 1995;92(9):2705-14.
1994: AA Mehdirad; S Keim; K Rist; Todor N Mazgalev; P Tchou
Asymmetry of retrograde conduction and reentry within the His-Purkinje system: a comparative analysis of left and right ventricular stimulation.
Journal of the American College of Cardiology 1994;24(1):177-84.