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Profile

Shahriar Iravanian

  • Department of Medicine
    Adjunct Assistant Professor
  • shahriar.iravanian@emoryhealthcare.org

Research

Publications

  • Accurate detection of lead malfunction from ECG-derived bipolar pacing stimulus amplitude.
    Heart Rhythm Volume: 21 Page(s): 2226 - 2231
    11/01/2024 Authors: Lloyd MS; Pelling M; Ibrahim R; El-Chami MF; Iravanian S
  • Integer Polynomial Factorization by Recombination of Real Factors: Re-evaluating an Old Technique in Modern Era

    10/21/2024 Authors: Iravanian S
  • A cross species thermoelectric and spatiotemporal analysis of alternans in live explanted hearts using dual voltage-calcium fluorescence optical mapping.
    Physiol Meas Volume: 45
    06/04/2024 Authors: Crispino A; Loppini A; Uzelac I; Iravanian S; Bhatia NK; Burke M; Filippi S; Fenton FH; Gizzi A
  • Complex repolarization dynamics in ex vivo human ventricles are independent of the restitution properties.
    Europace Volume: 25
    12/06/2023 Authors: Iravanian S; Uzelac I; Shah AD; Toye MJ; Lloyd MS; Burke MA; Daneshmand MA; Attia TS; Vega JD; El-Chami MF
  • Higher-Order Dynamics Beyond Repolarization Alternans in Ex-Vivo Human Ventricles are Independent of the Restitution Properties.
    medRxiv
    08/21/2023 Authors: Iravanian S; Uzelac I; Shah AD; Toye MJ; Lloyd MS; Burke MA; Daneshmand MA; Attia TS; Vega JD; El-Chami M
  • Beyond Alternans: Detection of Higher-Order Periodicity in Ex-Vivo Human Ventricles Before Induction of Ventricular Fibrillation.
    bioRxiv
    05/02/2023 Authors: Iravanian S; Uzelac I; Shah AD; Toye MJ; Lloyd MS; Burke MA; Daneshmand MA; Attia TS; Vega JD; Merchant FM
  • Novel use of an irrigated ablation catheter to monitor real-time hemodynamics during ablation.
    Volume: 34 Page(s): 1111 - 1118
    05/01/2023 Authors: Bhatia NK; Iravanian S; Ravi N; Kiani S; Lloyd MS; Westerman SB; Merchant FM; El-Chami MF; Hoque A; Shah AD
  • Spiral wave breakup: Optical mapping in an explanted human heart shows the transition from ventricular tachycardia to ventricular fibrillation and self-termination.
    Heart Rhythm Volume: 19 Page(s): 1914 - 1915
    11/01/2022 Authors: Uzelac I; Iravanian S; Bhatia NK; Fenton FH
  • Direct observation of a stable spiral wave reentry in ventricles of a whole human heart using optical mapping for voltage and calcium.
    Heart Rhythm Volume: 19 Page(s): 1912 - 1913
    11/01/2022 Authors: Uzelac I; Iravanian S; Bhatia NK; Fenton FH
  • Cell Unexcitability and Electrotonic Coupling Phenomenon Analysis of Ablation-Created Lesions: A Study Case with Ablated Explanted Human Heart.
    Volume: 49
    09/01/2022 Authors: Siles J; Salinet J; Crowley CJ; Fenton F; Bhatia N; Iravanian S; Uzelac I
  • Hands-on defibrillation with safety drapes: Analysis of compressions and an alternate current pathway.
    Am J Emerg Med Volume: 52 Page(s): 132 - 136
    02/01/2022 Authors: Wight JA; Bigham TE; Hanson PR; Zahid A; Iravanian S; Perkins PE; Lloyd MS
  • Symbolic-Numeric Integration of Univariate Expressions based on Sparse Regression

    01/28/2022 Authors: Iravanian S; Martensen CJ; Cheli A; Gowda S; Jain A; Ma Y; Rackauckas C
  • Circle Method for Robust Estimation of Local Conduction Velocity High-Density Maps From Optical Mapping Data: Characterization of Radiofrequency Ablation Sites.
    Front Physiol Volume: 13 Page(s): 794761
    01/01/2022 Authors: Siles-Paredes JG; Crowley CJ; Fenton FH; Bhatia N; Iravanian S; Sandoval I; Pollnow S; Dssel O; Salinet J; Uzelac I
  • Methodology for Cross-Talk Elimination in Simultaneous Voltage and Calcium Optical Mapping Measurements With Semasbestic Wavelengths.
    Front Physiol Volume: 13 Page(s): 812968
    01/01/2022 Authors: Uzelac I; Crowley CJ; Iravanian S; Kim TY; Cho HC; Fenton FH
  • A Network-based Cardiac Electrophysiology Simulator with Realistic Signal Generation and Response to Pacing Maneuvers.
    Comput Cardiol (2010) Volume: 48
    09/01/2021 Authors: Iravanian S; Uzelac I; Kaboudian A; Langberg J; Fenton F
  • Interactive 3D Human Heart Simulations on Segmented Human MRI Hearts.
    Comput Cardiol (2010) Volume: 48
    09/01/2021 Authors: Berman JP; Kaboudian A; Uzelac I; Iravanian S; Iles T; Iaizzo PA; Lim H; Smolka S; Glimm J; Cherry EM
  • Not all Long-QTs Are The Same, Proarrhytmic Quantification with Action Potential Triangulation and Alternans.
    Comput Cardiol (2010) Volume: 48
    09/01/2021 Authors: Uzelac I; Iravanian S; Cherry EM; Fenton FH
  • Unimapper: An Online Interactive Analyzer/Visualizer of Optical Mapping Experimental Data.
    Comput Cardiol (2010) Volume: 48
    09/01/2021 Authors: Iravanian S; Uzelac I; Cairns DI; Cherry EM; Kaboudian A; Fenton FH
  • Interactive Simulation of the ECG: Effects of Cell Types, Distributions, Shapes and Duration.
    Comput Cardiol (2010) Volume: 48
    09/01/2021 Authors: Ortiz JR; Kaboudian A; Uzelac I; Iravanian S; Cherry EM; Fenton FH
  • Quantifying arrhythmic long QT effects of hydroxychloroquine and azithromycin with whole-heart optical mapping and simulations.
    Heart Rhythm O2 Volume: 2 Page(s): 394 - 404
    08/01/2021 Authors: Uzelac I; Kaboudian A; Iravanian S; Siles-Paredes JG; Gumbart JC; Ashikaga H; Bhatia N; Gilmour RF; Cherry EM; Fenton FH
  • Experience using multielectrode cardiac catheters for detection of electrophysiologic activity of the human urinary bladder.
    Neurourol Urodyn Volume: 40 Page(s): 80 - 84
    01/01/2021 Authors: Ford AT; Lloyd M; Iravanian S; Northington G; Kelley RS
  • Discovery of the Hidden State in Ionic Models Using a Domain-Specific Recurrent Neural Network

    11/14/2020 Authors: Iravanian S
  • Fatal arrhythmias: Another reason why doctors remain cautious about chloroquine/hydroxychloroquine for treating COVID-19.
    Heart Rhythm Volume: 17 Page(s): 1445 - 1451
    09/01/2020 Authors: Uzelac I; Iravanian S; Ashikaga H; Bhatia NK; Herndon C; Kaboudian A; Gumbart JC; Cherry EM; Fenton FH
  • Generation of Monophasic Action Potentials and Intermediate Forms.
    Biophys J Volume: 119 Page(s): 460 - 469
    07/21/2020 Authors: Iravanian S; Uzelac I; Herndon C; Langberg JJ; Fenton FH
  • Parallel Acceleration on Removal of Optical Mapping Baseline Wandering.
    Comput Cardiol (2010) Volume: 46
    09/01/2019 Authors: Uzelac I; Iravanian S; Fenton FH
  • Hands-on defibrillation with a safety barrier: An analysis of potential risk to rescuers.
    Resuscitation Volume: 138 Page(s): 110 - 113
    05/01/2019 Authors: Wight JA; Iravanian S; Haouzi AA; Lloyd MS
  • HANDS-ON DEFIBRILLATION WITH SAFETY DRAPES: AN ANALYSIS OF CURRENT LEAK TO RESCUERS
    Volume: 73 Page(s): 491 - 491
    03/12/2019 Authors: Wight JA; Iravanian S; Haouzi A; Lloyd M
  • A review of bioelectrodes for clinical electrophysiologists.
    Heart Rhythm Volume: 16 Page(s): 460 - 469
    03/01/2019 Authors: Iravanian S; Langberg JJ
  • Theoretical Modeling and Experimental Detection of the Extracellular Phasic Impedance Modulation in Rabbit Hearts.
    Front Physiol Volume: 10 Page(s): 883
    01/01/2019 Authors: Iravanian S; Herndon C; Langberg JJ; Fenton FH
  • Clinical and anatomic predictors of need for repeat atrial fibrillation ablation.
    World J Cardiol Volume: 9 Page(s): 742 - 748
    09/26/2017 Authors: Desai Y; Levy MR; Iravanian S; Clermont EC; Kelli HM; Eisner RL; El-Chami MF; Leon AR; Delurgio DB; Merchant FM
  • Critical phase transitions during ablation of atrial fibrillation.
    Chaos Volume: 27 Page(s): 093925
    09/01/2017 Authors: Iravanian S; Langberg JJ
  • Anatomic and Clinical Predictors of Need for Repeat Atrial Fibrillation Ablation
    Volume: 134
    11/11/2016 Authors: Desai YB; Levy MR; Iravanian S; Clermont EC; Kelli HM; Eisner RL; El-Chami MF; Leon AR; Delurgio DB; Merchant FM
  • Pulmonary vein anatomy assessed by cardiac magnetic resonance imaging in patients undergoing initial atrial fibrillation ablation: implications for novel ablation technologies.
    J Interv Card Electrophysiol Volume: 46 Page(s): 89 - 96
    08/01/2016 Authors: Merchant FM; Levy MR; Iravanian S; Clermont EC; Kelli HM; Eisner RL; El-Chami MF; Leon AR; Delurgio DB
  • Temporal Power-Law Scaling in Persistent Atrial Fibrillation
    Volume: 27 Page(s): 649 - 649
    05/01/2016 Authors: Iravanian S; Langberg J
  • Pulmonary Vein Remodeling Following Atrial Fibrillation Ablation: Implications For The Radiographic Diagnosis Of Pulmonary Vein Stenosis.
    J Atr Fibrillation Volume: 9 Page(s): 1453
    01/01/2016 Authors: Merchant FM; Levy MR; Iravanian S; Weragoda RM; Clermont EC; Kelli HM; Eisner RL; Vadnais D; El-Chami MF; Leon AR
  • Spatiotemporal organization during ablation of persistent atrial fibrillation.
    Heart Rhythm Volume: 12 Page(s): 1937 - 1944
    09/01/2015 Authors: Iravanian S; Langberg JJ
  • Interspike Interval Analysis of Persistent Atrial Fibrillation as a Tool to Determine the Underlying Fibrillation Mechanism
    JOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY Volume: 25 Page(s): 575 - 575
    05/01/2014 Authors: Iravanian S; Langberg J
  • Relationship between mechanical dyssynchrony and intra-operative electrical delay times in patients undergoing cardiac resynchronization therapy.
    J Cardiovasc Magn Reson Volume: 16 Page(s): 4
    01/06/2014 Authors: Suever JD; Hartlage GR; Magrath RP; Iravanian S; Lloyd MS; Oshinski JN
  • CORRELATION OF CMR MECHANICAL DYSSYNCHRONY MAPS AND INTRAOPERATIVE ELECTRICAL ACTIVATION PATTERNS FOR CARDIAC RESYNCHRONIZATION THERAPY
    Volume: 61 Page(s): E1075 - E1075
    03/12/2013 Authors: Hartlage G; Suever J; Hoskins M; Iravanian S; Magrath R; Oshinski J; Lloyd M
  • A class of Monte-Carlo-based statistical algorithms for efficient detection of repolarization alternans.
    IEEE Trans Biomed Eng Volume: 59 Page(s): 1882 - 1891
    07/01/2012 Authors: Iravanian S; Kanu UB; Christini DJ
  • Left atrial flutter accelerates during ablation of atrial fibrillation: a paradoxical effect of electrical remodelling.
    Europace Volume: 14 Page(s): 761 - 766
    05/01/2012 Authors: Iravanian S; Lloyd MS; Langberg JJ
  • "ECG concealment" during left atrial flutter with 2:1 entrance block into the right atrium.
    J Cardiovasc Electrophysiol Volume: 23 Page(s): 221 - 222
    02/01/2012 Authors: Yoo D; Iravanian S; Langberg JJ
  • Inhibition of c-Src tyrosine kinase prevents angiotensin II-mediated connexin-43 remodeling and sudden cardiac death.
    J Am Coll Cardiol Volume: 58 Page(s): 2332 - 2339
    11/22/2011 Authors: Sovari AA; Iravanian S; Dolmatova E; Jiao Z; Liu H; Zandieh S; Kumar V; Wang K; Bernstein KE; Bonini MG
  • Inhibition of renin-angiotensin system (RAS) reduces ventricular tachycardia risk by altering connexin43.
    J Mol Med (Berl) Volume: 89 Page(s): 677 - 687
    07/01/2011 Authors: Iravanian S; Sovari AA; Lardin HA; Liu H; Xiao HD; Dolmatova E; Jiao Z; Harris BS; Witham EA; Gourdie RG
  • Control of action potential duration alternans in canine cardiac ventricular tissue.
    IEEE Trans Biomed Eng Volume: 58 Page(s): 894 - 904
    04/01/2011 Authors: Kanu UB; Iravanian S; Gilmour RF; Christini DJ
  • MITOCHONDRIA-TARGETED ANTIOXIDANT, MITO-TEMPO, PREVENTS ANGIOTENSIN II MEDIATED CONNEXIN 43 REMODELING AND SUDDEN CARDIAC DEATH
    Volume: 59 Page(s): 693 - 694
    04/01/2011 Authors: Sovari AA; Gu L; Mitchell D; Jeong E; Bonini MG; Dudley SC; Iravanian S
  • Left Atrial Flutter Accelerates During Ablation of Atrial Fibrillation-A Paradoxical Effect of Reverse Remodeling
    Volume: 22 Page(s): 494 - 495
    04/01/2011 Authors: Iravanian S; Lloyd MS; Langberg JJ
  • CATHETER ABLATION OF ATRIAL FIBRILLATION IS ASSOCIATED WITH SIGNIFICANT REDUCTION IN LEFT ATRIAL AND PULMONARY VEIN DIMENSIONS
    Volume: 55
    03/09/2010 Authors: Iravanian S; Eisner RL; El-Chami MF; O'Donnell RE
  • Control of action potential duration alternans in canine ventricular tissue.
    Volume: 2010 Page(s): 1997 - 2000
    01/01/2010 Authors: Kanu U; Iravanian S; Gilmour RF; Christini DJ
  • Regulation of Cardiac Na+ Current by Pyridine Nucleotides: A Possible Explanation of Glycerol-3-Phosphate Dehydrogenase-Linked Brugada Syndrome
    Volume: 118 Page(s): S532 - S532
    10/28/2008 Authors: Sanyal S; Gurung IS; Pfahnl AE; Shang LL; Iravanian S; Allen J; Liu M; Grace A; London B; Dudley SC
  • The renin-angiotensin-aldosterone system (RAAS) and cardiac arrhythmias (vol 5, pg S12, 2008)
    HEART RHYTHM Volume: 5
    10/01/2008 Authors: Iravanian S; Dudley SC
  • Representation of collective electrical behavior of cardiac cell sheets.
    Biophys J Volume: 95 Page(s): 1138 - 1150
    08/01/2008 Authors: Weinberg S; Iravanian S; Tung L
  • The renin-angiotensin-aldosterone system (RAAS) and cardiac arrhythmias.
    Volume: 5 Page(s): S12 - S17
    06/01/2008 Authors: Iravanian S; Dudley SC
  • Prevention of connexin 43 (Cx43) dephosphorylation is associated with reduced ventricular tachycardia in cardiac-specific angiotensin converting enzyme (ACE) overexpression mice
    Volume: 116 Page(s): 218 - 218
    10/16/2007 Authors: Iravanian S; Xiao H; Witham EA; Bernstein KE; Dudley S
  • The phosphoinositide 3-kinases (PI3K)-AKT signaling pathway may explain arrhythmic changes in cardiac-specific angiotensin converting enzyme (ACE) overexpression mice (ACE 8/8)
    Volume: 116 Page(s): 277 - 277
    10/16/2007 Authors: Iravanian S; Man HD; Bernstein KE; Dudley SC
  • Metabolic regulation of Na+ current, a possible explanation of glycerol-3-phosphate dehydrogenase-linked Brugada syndrome
    Volume: 116 Page(s): 185 - 186
    10/16/2007 Authors: Sanyal SN; Pfahnll AE; Shang LL; Iravanian S; Allen J; London B; Dudley SC
  • Optical mapping system with real-time control capability.
    Am J Physiol Heart Circ Physiol Volume: 293 Page(s): H2605 - H2611
    10/01/2007 Authors: Iravanian S; Christini DJ
  • Cardiac-restricted angiotensin-converting enzyme overexpression causes conduction defects and connexin dysregulation.
    Am J Physiol Heart Circ Physiol Volume: 293 Page(s): H182 - H192
    07/01/2007 Authors: Kasi VS; Xiao HD; Shang LL; Iravanian S; Langberg J; Witham EA; Jiao Z; Gallego CJ; Bernstein KE; Dudley SC
  • Reduced nicotinamide adenine dinucleotide (NADH) decreases sodium channel current: A possible explanation for Brugada syndrome caused by glycerol-3-phosphate dehydrogenase 1-Like (GPD1-L) gene mutations.
    Page(s): 179A - 179A
    01/01/2007 Authors: Sanyal S; Pfahnl AE; Shang LL; Iravanian S; Allen J; London B; Dudley SC
  • A possible mechanism of halocarbon-induced cardiac sensitization arrhythmias.
    J Mol Cell Cardiol Volume: 41 Page(s): 698 - 705
    10/01/2006 Authors: Jiao Z; De Jess VR; Iravanian S; Campbell DP; Xu J; Vitali JA; Banach K; Fahrenbach J; Dudley SC
  • Role of electrophysiologic studies, signal-averaged electrocardiography, heart rate variability, T-wave alternans, and loop recorders for risk stratification of ventricular arrhythmias.
    Am J Geriatr Cardiol Volume: 14 Page(s): 16 - 19
    01/01/2005 Authors: Iravanian S; Arshad A; Steinberg JS
  • Functional reentry in cultured monolayers of neonatal rat cardiac cells.
    Am J Physiol Heart Circ Physiol Volume: 285 Page(s): H449 - H456
    07/01/2003 Authors: Iravanian S; Nabutovsky Y; Kong C-R; Saha S; Bursac N; Tung L
  • Cardiomyocyte cultures with controlled macroscopic anisotropy: a model for functional electrophysiological studies of cardiac muscle.
    Volume: 91 Page(s): e45 - e54
    12/13/2002 Authors: Bursac N; Parker KK; Iravanian S; Tung L
  • A novel algorithm for cardiac biosignal filtering based on filtered residue method.
    IEEE Trans Biomed Eng Volume: 49 Page(s): 1310 - 1317
    11/01/2002 Authors: Iravanian S; Tung L
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