Ravi Ranjan
( out of 159 reviews )

Ravi Ranjan, MD, PhD

Languages spoken: English

Clinical Locations

Blanding Family Practice

Blanding
435-678-0700

Cardiovascular Center

Cardiovascular Center
Salt Lake City
801-585-7676

University of Utah Hospital

Salt Lake City
801-585-7676

  • Ravi Ranjan, M.D., Ph.D., is a cardiologist specializing in cardiac electrophysiology. His clinical interests include ablation of complex cardiac arrhythmias like atrial fibrillation, ventricular tachycardias and supra-ventricular tachycardias. He also has keen interest in cardiac device based therapy like cardiac resynchronization therapy, ICDs and pacemakers. He has been a faculty member at the University of Utah since 2010 and is a tenured Professor of Medicine. He received his medical degree from Harvard Medical School, completed an internal medicine residency at Massachusetts General Hospital, Harvard Medical School, a cardiology fellowship at Johns Hopkins Hospital and a cardiac electrophysiology fellowship at Johns Hopkins Hospital. Dr. Ranjan has built a large clinical cardiology and electrophysiology practice in Utah.

    Specialties

    Patient Rating

    4.8 /5
    ( out of 159 reviews )

    The patient rating score is an average of all responses on our patient experience survey. The rating averages scores for all questions about care from our providers.

    The scale on which responses are measured is 1 to 5 with 5 being the best score.

    Patient Comments

    Patient comments are gathered from our patient experience survey and displayed in their entirety.
    Patients are de-identified for confidentiality and patient privacy.

    July 30, 2024
    UH HOSPITALS AND CLINICS

    The doctor explained my operation very clearly

    July 16, 2024
    EXTERNAL SITE

    Really liked him his a good Doctor would recommend him to everyone.

    June 29, 2024
    UH HOSPITALS AND CLINICS

    I came in knowing from previous experience that something isn't right with my heart. When the tests showed nothing, I was given a monitor to suffice my worries. Because I have had heart problems in the past, I know something isn't right. It may not be physical or showing on tests, but there is something wrong and I know it. I would like to be led in a different direction to help find answers or to something else that may be causing the pain. He was nice but my visit left me discouraged and not knowing where to go.

    May 11, 2024
    UH HOSPITALS AND CLINICS

    Knowledgeable and caring

    May 04, 2024
    UH HOSPITALS AND CLINICS

    Excellent Doctor in every way. I highly recomment him.

    April 27, 2024
    UH HOSPITALS AND CLINICS

    Excellent bedside manner and great communicator.

    March 30, 2024
    EXTERNAL SITE

    I trust the doctor and his team.

    March 23, 2024
    UH HOSPITALS AND CLINICS

    Dr.Ravi Ranjan,was very professional and knowledgeable I like him!

    March 22, 2024
    EXTERNAL SITE

    How clearly he explained everything to me

    See More Patient Comments

  • Ravi Ranjan, M.D., Ph.D., is a cardiologist specializing in cardiac electrophysiology. His clinical interests include ablation of complex cardiac arrhythmias like atrial fibrillation, ventricular tachycardias and supra-ventricular tachycardias. He also has keen interest in cardiac device based therapy like cardiac resynchronization therapy, ICDs and pacemakers. He has been a faculty member at the University of Utah since 2010 and is a tenured Professor of Medicine. He received his medical degree from Harvard Medical School, completed an internal medicine residency at Massachusetts General Hospital, Harvard Medical School, a cardiology fellowship at Johns Hopkins Hospital and a cardiac electrophysiology fellowship at Johns Hopkins Hospital. Dr. Ranjan has built a large clinical cardiology and electrophysiology practice in Utah.

    Board Certification and Academic Information

    Academic Departments Internal Medicine -Primary
    Academic Divisions Cardiovascular Medicine

    Education history

    Fellowship Cardiac Electrophysiology - Johns Hopkins Hospital Fellow
    Cardiology - Johns Hopkins Hospital Fellow
    Residency Internal Medicine - Massachusetts General Hospital / Harvard Medical School Resident
    Medicine - Harvard Medical School M.D.
    Doctoral Training Biomedical Engineering - The Johns Hopkins University Ph.D.

    Selected Publications

    Journal Article

    1. Hunt B, Kwan E, Paccione E, Orkild B, Yazaki K, Bergquist J, Dong J, MacLeod RS, Dosdall DJ, Ranjan R (2024). Are Drivers Recurring or Ephemeral? Observations from Serial Mapping of Persistent Atrial Fibrillation. Europace. (Read full article)
    2. Dong J, Kwan E, Bergquist JA, Steinberg BA, Dosdall DJ, DiBella EVR, MacLeod RS, Bunch TJ, Ranjan R (2024). Ablation-induced left atrial mechanical dysfunction recovers in weeks after ablation. J Interv Card Electrophysiol. (Read full article)
    3. Hirahara AM, Khan MS, Ishidoya Y, Smego D, Roman O, Ranjan R, Krueger L, Hoareau G, Selzman CH, Dosdall DJ (2023). Canine Model of Ischemia-Induced Ventricular Tachycardia. J Surg Res, 293, 196-203. (Read full article)
    4. Hunt B, Kwan E, Tasdizen T, Bergquist J, Lange M, Orkild B, MacLeod RS, Dosdall DJ, Ranjan R (2023). Transfer Learning for Improved Classification of Drivers in Atrial Fibrillation. Comput Cardiol (2010), 50. (Read full article)
    5. Paccione EN, Lange M, Orkild BA, Bergquist JA, Kwan E, Hunt B, Dosdall D, Macleod RS, Ranjan R (2023). Effects of Biventricular Pacing Locations on Anti-Tachycardia Pacing Success in a Patient-Specific Model. Comput Cardiol (2010), 2023. (Read full article)
    6. Bergquist JA, Lange M, Zenger B, Orkild B, Paccione E, Kwan E, Hunt B, Dong J, MacLeod RS, Narayan A, Ranjan R (2023). Uncertainty Quantification of the Effect of Variable Conductivity in Ventricular Fibrotic Regions on Ventricular Tachycardia. Comput Cardiol (2010), 50. (Read full article)
    7. Bergquist JA, Zenger B, Brundage J, MacLeod RS, Shah R, Ye X, Lyones A, Ranjan R, Tasdizen T, Bunch TJ, Steinberg BA (2023). Comparison of Machine Learning Detection of Low Left Ventricular Ejection Fraction Using Individual ECG Leads. Comput Cardiol (2010), 50. (Read full article)
    8. Khan MS, Smego D, Ishidoya Y, Hirahara AM, Offei E, Ruiz Castillo MS, Gharbia O, Li H, Palatinus JA, Krueger L, Hong T, Hoareau GL, Ranjan R, Selzman CH, Shaw RM, Dosdall DJ (2023). A canine model of chronic ischemic heart failure. Am J Physiol Heart Circ Physiol, 324(6), H751-H761. (Read full article)
    9. Huang Q, Tian Y, Mendes J, Ranjan R, Adluru G, DiBella E (2022). Quantitative myocardial perfusion with a hybrid 2D simultaneous multi-slice sequence. Magn Reson Imaging, 98, 7-16. (Read full article)
    10. Hirahara AM, Khan MS, Gharbia OA, Lange M, Ishidoya Y, Smego D, Ranjan R, Stoddard GJ, Selzman CH, Dosdall DJ (2023). Antitachycardia pacing at the His bundle is safer than conventional right ventricular antitachycardia pacing in a canine myocardial ischemic injury model. J Cardiovasc Electrophysiol, 34(5), 1249-1256. (Read full article)
    11. Palatinus JA, Valdez S, Taylor L, Whisenant C, Selzman CH, Drakos SG, Ranjan R, Hong T, Saffitz JE, Shaw RM (2023). GJA1-20k Rescues Cx43 Localization and Arrhythmias in Arrhythmogenic Cardiomyopathy. Circ Res, 132(6), 744-746. (Read full article)
    12. Feuerborn ML, Dechand J, Vadlamudi RS, Torre M, Freedman RA, Groh C, Navaravong L, Ranjan R, Varela D, Bunch TJ, Steinberg BA (2022). Protocol Development and Initial Experience With Intravenous Sotalol Loading for Atrial Arrhythmias. Crit Pathw Cardiol, 22(1), 1-4. (Read full article)
    13. Kamali R, Gillete K, Tate J, Abhyankar DA, Dosdall DJ, Plank G, Bunch TJ, Macleod RS, Ranjan R (2022). Treatment Planning for Atrial Fibrillation Using Patient-Specific Models Showing the Importance of Fibrillatory-Areas. Ann Biomed Eng, 51(2), 329-342. (Read full article)
    14. Kamali R, Kwan E, Regouski M, Bunch TJ, Dosdall DJ, Hsu E, Macleod RS, Polejaeva I, Ranjan R (2023). Contribution of atrial myofiber architecture to atrial fibrillation. PLoS One, 18(1), e0279974. (Read full article)
    15. Tokavanich N, Prasitlumkum N, Kewcharoen J, Chokesuwattanaskul R, Phannajit J, Cheungpasitporn W, Akoum N, Ranjan R, Bunch TJ, Navaravong L (2023). Network meta-analysis and systematic review comparing efficacy and safety between very high power short duration, high power short duration, and conventional radiofrequency ablation of atrial fibrillation. J Cardiovasc Electrophysiol. (Read full article)
    16. Sessions AJ, May HT, Crandall BG, Day JD, Cutler MJ, Groh CA, Navaravong L, Ranjan R, Steinberg BA, J Bunch T (2023). Increasing time between first diagnosis of atrial fibrillation and catheter ablation adversely affects long-term outcomes in patients with and without structural heart disease. J Cardiovasc Electrophysiol. (Read full article)
    17. Zenger B, Li H, Bunch TJ, Crawford C, Fang JC, Groh CA, Hess R, Navaravong L, Ranjan R, Young J, Zhang Y, Steinberg BA (2022). Major drivers of healthcare system costs and cost variability for routine atrial fibrillation ablation. Heart Rhythm O2, 4(4), 251-257. (Read full article)
    18. Ptaszek LM, Koruth J, Santangeli P, Piccini JP, Ranjan R, Mahapatra S, Pipenhagen C, Fish JM, Moon LB, Ambrosius NM, Boudlali H, Jensen JA (2022). Safe and effective delivery of high-power, short-duration radiofrequency ablation lesions with a flexible-tip ablation catheter. Heart Rhythm O2, 4(1), 42-50. (Read full article)
    19. Khan MS, Kyriakopoulos CP, Taleb I, Dranow E, Scott M, Ranjan R, Yin M, Tseliou E, Alharethi R, Caine W, Shaw RM, Selzman CH, Drakos SG, Dosdall DJ (2022). Baseline QRS duration associates with cardiac recovery in patients with continuous-flow left ventricular assist device implantation. Am Heart J Plus, 22, 100211. (Read full article)
    20. Steinberg BA, Woolley S, Li H, Crawford C, Groh CA, Navaravong L, Ranjan R, Zenger B, Zhang Y, Bunch TJ (2022). Patient-reported outcomes and costs associated with vascular closure and same-day discharge following atrial fibrillation ablation. J Cardiovasc Electrophysiol, 33(8), 1737-1744. (Read full article)
    21. Ishidoya Y, Kwan E, Dosdall DJ, Macleod RS, Navaravong L, Steinberg BA, Bunch TJ, Ranjan R (2022). Short-term natural course of esophageal thermal injury after ablation for atrial fibrillation. J Cardiovasc Electrophysiol, 33(7), 1450-1459. (Read full article)
    22. Ishidoya Y, Kwan E, Dosdall DJ, Macleod RS, Navaravong L, Steinberg BA, Jared Bunch T, Ranjan R (2022). Shorter distance between the esophagus and the left atrium is associated with higher rates of esophageal thermal injury after radiofrequency ablation. J Cardiovasc Electrophysiol, 33(7), 1460-1471. (Read full article)
    23. Shah AR, Khan MS, Lange M, Hirahara AM, Stoddard G, Ranjan R, Dosdall DJ (2021). During Early VF in Rabbit Hearts, His Bundle Pacing is Less Effective Than Working Myocardial Pacing in Modulating Left Ventricular Activation Rates. Cardiovasc Eng Technol, 13(3), 452-465. (Read full article)
    24. Kewcharoen J, Prasitlumkum N, Chokesuwattanaskul R, Yi R, Jongnarangsin K, Bunch TJ, Ranjan R, Navaravong L (2021). Ablation versus medication as initial therapy for paroxysmal atrial fibrillation: An updated meta-analysis of randomized controlled trials. J Arrhythm, 37(6), 1448-1458. (Read full article)
    25. Wirostko BM, Curtin K, Taylor SC, Paulson C, Pompoco C, Besch BM, Ranjan R, Ritch R (2021). Risk of atrial fibrillation is increased in patients with exfoliation syndrome: the Utah project on exfoliation syndrome (UPEXS). Acta Ophthalmol, 100, e1002-e1009. (Read full article)
    26. Kamali R, Kump J, Ghafoori E, Lange M, Hu N, Bunch TJ, Dosdall DJ, Macleod RS, Ranjan R (2021). Area Available for Atrial Fibrillation to Propagate Is an Important Determinant of Recurrence After Ablation. JACC Clin Electrophysiol, 7(7), 896-908. (Read full article)
    27. Turner JL, Steinberg BA, Bunch TJ, Ranjan R (2021). Inflammatory cutaneous reaction to a temporary permanent pacemaker. HeartRhythm Case Rep, 7(8), 571-572. (Read full article)
    28. Hirahara AM, Lange M, Shah A, Khan MS, Ranjan R, Stoddard G, Dosdall DJ (2020). His bundle pacing shows similar ventricular electrical activation as sinus: selective and nonselective His pacing indistinguishable. Am J Physiol Heart Circ Physiol, 320(1), H13-H22. (Read full article)
    29. Tian Y, Mendes J, Wilson B, Ross A, Ranjan R, DiBella E, Adluru G (2020). Whole-heart, ungated, free-breathing, cardiac-phase-resolved myocardial perfusion MRI by using Continuous Radial Interleaved simultaneous Multi-slice acquisitions at sPoiled steady-state (CRIMP). Magn Reson Med, 84(6), 3071-3087. (Read full article)
    30. Zenger B, Zhang M, Lyons A, Bunch TJ, Fang JC, Freedman RA, Navaravong L, Piccini JP, Ranjan R, Spertus JA, Stehlik J, Turner JL, Greene T, Hess R, Steinberg BA (2020). Patient-reported outcomes and subsequent management in atrial fibrillation clinical practice: Results from the Utah mEVAL AF program. J Cardiovasc Electrophysiol, 31(12), 3187-3195. (Read full article)
    31. Kamali R, Schroeder J, DiBella E, Steinberg B, Han F, Dosdall DJ, Macleod RS, Ranjan R (2020). Reproducibility of clinical late gadolinium enhancement magnetic resonance imaging in detecting left atrial scar after atrial fibrillation ablation. J Cardiovasc Electrophysiol, 31(11), 2824-2832. (Read full article)
    32. Swenson DJ, Taepke RT, Blauer JJE, Kwan E, Ghafoori E, Plank G, Vigmond E, MacLeod RS, DeGroot P, Ranjan R (2020). Direct comparison of a novel antitachycardia pacing algorithm against present methods using virtual patient modeling. Heart Rhythm, 17(9), 1602-1608. (Read full article)
    33. Hunt B, Kwan E, McMillan M, Dosdall D, MacLeod R, Ranjan R (2021). Deep Learning Based Prediction of Atrial Fibrillation Disease Progression with Endocardial Electrograms in a Canine Model. Comput Cardiol (2010), 47. (Read full article)
    34. Khan MS, Yamashita K, Sharma V, Ranjan R, Selzman CH, Dosdall DJ (2019). Perioperative Biomarkers Predicting Postoperative Atrial Fibrillation Risk After Coronary Artery Bypass Grafting: A Narrative Review. J Cardiothorac Vasc Anesth, 34(7), 1933-1941. (Read full article)
    35. Shah AR, Khan MS, Hirahara AM, Lange M, Ranjan R, Dosdall DJ (2020). In Vitro/Ex Vivo Investigation of Modified Utah Electrode Array to Selectively Sense and Pace the Sub-Surface Cardiac His Bundle. ACS Biomater Sci Eng, 6(6), 3335-3348. (Read full article)
    36. Khan MS, Yamashita K, Sharma V, Ranjan R, Dosdall DJ (2020). RNAs and Gene Expression Predicting Postoperative Atrial Fibrillation in Cardiac Surgery Patients Undergoing Coronary Artery Bypass Grafting. J Clin Med, 9(4). (Read full article)
    37. Shah AR, Khan MS, Hirahara AM, Lange M, Ranjan R, Dosdall DJ (2020). A real-time system for selectively sensing and pacing the His-bundle during sinus rhythm and ventricular fibrillation. Biomed Eng Online, 19(1), 19. (Read full article)
    38. Steinberg BA, Turner J, Lyons A, Biber J, Chelu MG, Fang JC, Freedman RA, Han FT, Hardisty B, Marrouche NF, Ranjan R, Shah RU, Spertus JA, Stehlik J, Zenger B, Piccini JP, Hess R (2019). Systematic collection of patient-reported outcomes in atrial fibrillation: feasibility and initial results of the Utah mEVAL AF programme. Europace, 22(3), 368-374. (Read full article)
    39. Yamashita K, Kwan E, Kamali R, Ghafoori E, Steinberg BA, MacLeod RS, Dosdall DJ, Ranjan R (2020). Blanking period after radiofrequency ablation for atrial fibrillation guided by ablation lesion maturation based on serial MR imaging. J Cardiovasc Electrophysiol, 31(2), 450-456. (Read full article)
    40. Yamashita K, Kamali R, Kwan E, MacLeod RS, Dosdall DJ, Ranjan R (2019). Effective Ablation Settings That Predict Chronic Scar After Left Atrial Ablation. JACC Clin Electrophysiol, 6(2), 143-152. (Read full article)
    41. Yamashita K, Ghafoori E, Silvernagel J, Ashton J, J Dosdall D, MacLeod R, Ranjan R (2019). The Effective Contact Force to Minimize Edema Relative to Chronic Lesion Formation During Radiofrequency Ablation in Ventricular Wall. Int Heart J, 60(6), 1407-1414. (Read full article)
    42. Getman MK, Wissner E, Ranjan R, Lalonde JP (2019). Relationship between time-to-isolation and freeze duration: Computational modeling of dosing for Arctic Front Advance and Arctic Front Advance Pro cryoballoons. J Cardiovasc Electrophysiol, 30(11), 2274-2282. (Read full article)
    43. Angel N, Kholmovski EG, Ghafoori E, Dosdall DJ, MacLeod RS, Ranjan R (2020). Regions of High Dominant Frequency in Chronic Atrial Fibrillation Anchored to Areas of Atrial Fibrosis. Comput Cardiol (2010), 46. (Read full article)
    44. Yamashita K, Silvernagel J, Kwan E, Kamali R, Ghafoori E, MacLeod R, Dosdall DJ, Ranjan R (2019). Changes in atrial electrophysiological and structural substrate and their relationship to histology in a long-term chronic canine atrial fibrillation model. Pacing Clin Electrophysiol, 42(7), 930-936. (Read full article)
    45. Yamashita K, Kholmovski E, Ghafoori E, Kamali R, Kwan E, Lichter J, MacLeod R, Dosdall DJ, Ranjan R (2018). Characterization of edema after cryo and radiofrequency ablations based on serial magnetic resonance imaging. J Cardiovasc Electrophysiol, 30(2), 255-262. (Read full article)
    46. Lichter J, Kholmovski EG, Coulombe N, Ghafoori E, Kamali R, MacLeod R, Ranjan R (2018). Real-time magnetic resonance imaging-guided cryoablation of the pulmonary veins with acute freeze-zone and chronic lesion assessment. Europace, 21(1), 154-162. (Read full article)
    47. Kholmovski EG, Silvernagel J, Angel N, Vijayakumar S, Thomas S, Dosdall D, MacLeod R, Marrouche NF, Ranjan R (2018). Acute noncontrast T1-weighted magnetic resonance imaging predicts chronic radiofrequency ablation lesions. J Cardiovasc Electrophysiol, 29(11), 1556-1562. (Read full article)
    48. Thomas S, Silvernagel J, Angel N, Kholmovski E, Ghafoori E, Hu N, Ashton J, Dosdall DJ, MacLeod R, Ranjan R (2018). Higher contact force during radiofrequency ablation leads to a much larger increase in edema as compared to chronic lesion size. J Cardiovasc Electrophysiol, 29(8), 1143-1149. (Read full article)
    49. Yamashita K, Quang C, Schroeder JD, DiBella E, Han F, MacLeod R, Dosdall DJ, Ranjan R (2018). Distance between the left atrium and the vertebral body is predictive of esophageal movement in serial MR imaging. J Interv Card Electrophysiol, 52(2), 149-156. (Read full article)
    50. Ghafoori E, Angel N, Dosdall DJ, MacLeod RS, Ranjan R (2018). Atrial fibrillation observed on surface ECG can be atrial flutter or atrial tachycardia. J Electrocardiol, 51(6S), S67-S71. (Read full article)
    51. Panitchob N, Li L, Huang J, Ranjan R, Ideker RE, Dosdall DJ (2017). Endocardial Activation Drives Activation Patterns During Long-Duration Ventricular Fibrillation and Defibrillation. Circ Arrhythm Electrophysiol, 10(12). (Read full article)
    52. Ghafoori E, Kholmovski EG, Thomas S, Silvernagel J, Angel N, Hu N, Dosdall DJ, MacLeod R, Ranjan R (2017). Characterization of Gadolinium Contrast Enhancement of Radiofrequency Ablation Lesions in Predicting Edema and Chronic Lesion Size.LID - e005599 [pii]LID - 10.1161/CIRCEP.117.005599 [doi]. Circ Arrhythm Electrophysiol, 10(11). (Read full article)
    53. Huang S, Wu L, Huang J, Panitchob N, Hu N, Ranjan R, Dosdall DJ (2017). Restitution characteristics of His bundle and working myocardium in isolated rabbit hearts. PLoS One, 12(10), e0186880. (Read full article)
    54. Polejaeva IA, Ranjan R, Davies CJ, Regouski M, Hall J, Olsen AL, Meng Q, Rutigliano HM, Dosdall DJ, Angel NA, Sachse FB, Seidel T, Thomas AJ, Stott R, Panter KE, Lee PM, Van Wettere AJ, Stevens JR, Wang Z, MacLeod RS, Marrouche NF, White KL (2016). Increased Susceptibility to Atrial Fibrillation Secondary to Atrial Fibrosis in Transgenic Goats Expressing Transforming Growth Factor-β1. J Cardiovasc Electrophysiol, 27(10), 1220-1229. (Read full article)
    55. Kholmovski EG, Coulombe N, Silvernagel J, Angel N, Parker D, Macleod R, Marrouche N, Ranjan R (2016). Real-Time MRI-Guided Cardiac Cryo-Ablation: A Feasibility Study. J Cardiovasc Electrophysiol, 27(5), 602-8. (Read full article)
    56. Angel N, Li LI, Macleod RS, Marrouche N, Ranjan R, Dosdall DJ (2015). Diverse Fibrosis Architecture and Premature Stimulation Facilitate Initiation of Reentrant Activity Following Chronic Atrial Fibrillation. J Cardiovasc Electrophysiol, 26(12), 1352-60. (Read full article)
    57. Parmar BR, Jarrett TR, Kholmovski EG, Hu N, Parker D, MacLeod RS, Marrouche NF, Ranjan R (2015). Poor scar formation after ablation is associated with atrial fibrillation recurrence. J Interv Card Electrophysiol, 44(3), 247-56. (Read full article)
    58. Fitts M, Breton E, Kholmovski EG, Dosdall DJ, Vijayakumar S, Hong KP, Ranjan R, Marrouche NF, Axel L, Kim D (2013). Arrhythmia insensitive rapid cardiac T1 mapping pulse sequence. Magn Reson Med, 70(5), 1274-82. (Read full article)
    59. Higuchi K, Akkaya M, Koopmann M, Blauer JJ, Burgon NS, Damal K, Ranjan R, Kholmovski E, Macleod RS, Marrouche NF (2013). The effect of fat pad modification during ablation of atrial fibrillation: late gadolinium enhancement MRI analysis. Pacing Clin Electrophysiol, 36(4), 467-76. (Read full article)
    60. Ranjan R, Kholmovski EG, Blauer J, Vijayakumar S, Volland NA, Salama ME, Parker DL, MacLeod R, Marrouche NF (2012). Identification and acute targeting of gaps in atrial ablation lesion sets using a real-time magnetic resonance imaging system. Circ Arrhythm Electrophysiol, 5(6), 1130-5. (Read full article)
    61. Akoum N, McGann C, Vergara G, Badger T, Ranjan R, Mahnkopf C, Kholmovski E, Macleod R, Marrouche N (2012). Atrial fibrosis quantified using late gadolinium enhancement MRI is associated with sinus node dysfunction requiring pacemaker implant. J Cardiovasc Electrophysiol, 23(1), 44-50. (Read full article)
    62. Ranjan R (2012). Magnetic resonance imaging in clinical cardiac electrophysiology. Crit Rev Biomed Eng, 40(5), 409-26. (Read full article)
    63. Ranjan R, Kato R, Zviman MM, Dickfeld TM, Roguin A, Berger RD, Tomaselli GF, Halperin HR (2011). Gaps in the ablation line as a potential cause of recovery from electrical isolation and their visualization using MRI. Circ Arrhythm Electrophysiol, 4(3), 279-86. (Read full article)
    64. Ranjan R, Henrikson CA (2010). ICD implantation after crossing a totally occluded subclavian vein via collaterals from the superior vena cava. Pacing Clin Electrophysiol, 33(2), e14-6. (Read full article)
    65. Yannopoulos D, Zviman M, Castro V, Kolandaivelu A, Ranjan R, Wilson RF, Halperin HR (2009). Intra-cardiopulmonary resuscitation hypothermia with and without volume loading in an ischemic model of cardiac arrest. Circulation, 120(14), 1426-35. (Read full article)
    66. Ranjan R, Tomaselli GF, Marban E (1999). A novel mechanism of anode-break stimulation predicted by bidomain modeling. Circ Res, 84(2), 153-6. (Read full article)
    67. Ranjan R, Chiamvimonvat N, Thakor NV, Tomaselli GF, Marban E (1998). Mechanism of anode break stimulation in the heart. Biophys J, 74(4), 1850-63. (Read full article)
    68. Benitah JP, Ranjan R, Yamagishi T, Janecki M, Tomaselli GF, Marban E (1997). Molecular motions within the pore of voltage-dependent sodium channels. Biophys J, 73(2), 603-13. (Read full article)
    69. Baykal A, Ranjan R, Thakor NV (1997). Estimation of the ventricular fibrillation duration by autoregressive modeling. IEEE Trans Biomed Eng, 44(5), 349-56. (Read full article)
    70. Thakor NV, Ranjan R, Rajasekhar S, Mower MM (1997). Effect of varying pacing waveform shapes on propagation and hemodynamics in the rabbit heart. Am J Cardiol, 79(6A), 36-43. (Read full article)
    71. Perez-Garcia MT, Chiamvimonvat N, Ranjan R, Balser JR, Tomaselli GF, Marban E (1997). Mechanisms of sodium/calcium selectivity in sodium channels probed by cysteine mutagenesis and sulfhydryl modification. Biophys J, 72(3), 989-96. (Read full article)
    72. Chiamvimonvat N, Perez-Garcia MT, Ranjan R, Marban E, Tomaselli GF (1996). Depth asymmetries of the pore-lining segments of the Na+ channel revealed by cysteine mutagenesis. Neuron, 16(5), 1037-47. (Read full article)
    73. Casaleggio A, Corana A, Ranjan R, Thakor NV (1996). Dimensional analysis of the electrical activity in fibrillating isolated hearts. Int J Bifurcat Chaos, 6, 1547-1561.
    74. Ranjan R, Thakor NV (1995). Electrical stimulation of cardiac myocytes. Ann Biomed Eng, 23(6), 812-21. (Read full article)
    75. Baykal A, Ranjan R, Thakor NV (1994). Model-based analysis of the ECG during early stages of ventricular fibrillation. J Electrocardiol, 27 Suppl, 84-90. (Read full article)

    Review

    1. Crawford M, Steinberg BA, Ranjan R, Konstantinidis K, Navaravong L, Bunch TJ (2023). Mortality benefit with AF ablation: Impact of normal sinus rhythm seen in CABANA and EAST AFnet. [Review]. J Cardiovasc Electrophysiol, 35(3), 538-546. (Read full article)
    2. Kogelschatz B, Zenger B, Steinberg BA, Ranjan R, Jared Bunch T (2023). Atrial fibrillation and the risk of early-onset dementia and cognitive decline: An updated review. [Review]. Trends Cardiovasc Med. (Read full article)
    3. Zenger B, Rizzi S, Steinberg BA, Ranjan R, Bunch TJ (2022). This is Your Brain, and This is Your Brain on Atrial Fibrillation: The Roles of Cardiac Malperfusion Events and Vascular Dysfunction in Cognitive Impairment. [Review]. Arrhythm Electrophysiol Rev, 12, e01. (Read full article)

    Book Chapter

    1. Ravi Ranjan and Joseph E Marine (05/31/2010). Basics of Biventricular Pacing Systems: Principles and Timing Cycles. In A. Al-Ahmad, K.A. Ellenbogen, A. Natale, P.J. Wang (Eds.), Pacemakers and Implantable Cardioverter Defibrillators: An Expert's Manual (1st Edition). Minneapolis: Cardiotext Publishing.

    Editorial

    1. Ishidoya Y, Ranjan R (2022). Using MRI to predict ventricular tachycardia recurrence and provide guidance for ablation? Heart Rhythm, 19(10), 1611-1612. (Read full article)
    2. Ishidoya Y, Ranjan R (2021). Novel energy source for ablating the pulmonary veins; Is pulsed field ablation the new ablation modality? J Cardiovasc Electrophysiol, 32(4), 970-972. (Read full article)
    3. Ranjan R (2020). Is it Time to Screen All Patients for Sleep Apnea Before Atrial Fibrillation Ablation? JACC Clin Electrophysiol, 6(12), 1507-1508. (Read full article)
    4. Bunch TJ, Ranjan R (2019). Overestimation and Underweighting of Rare Events: The Challenge of Preventing Atrial-Esophageal Fistula After Ablation. JACC Clin Electrophysiol, 6(3), 269-271. (Read full article)
    5. Ranjan R (2015). Is Good Contact Enough for Atrial Fibrillation Ablation? JACC Clin Electrophysiol, 1(5), 432-433. (Read full article)
    6. Yannopoulos D, Kolandaivelu A, Ranjan R (2008). Flow or no flow: that is the question! Crit Care Med, 36(5), 1677-8. (Read full article)

    Letter

    1. Sessions AJ, May HT, Crandall BG, Day JD, Cutler MJ, Groh CA, Navaravong L, Ranjan R, Steinberg BA, Jared Bunch T (2023). Response to "Delay in AF ablation costs lives". [Letter to the editor]. J Cardiovasc Electrophysiol, 34(4), 1094-1095. (Read full article)

    Other

    1. Burnham TS, May HT, Bair TL, Anderson JA, Crandall BG, Cutler MJ, Day JD, Freedman RA, Knowlton KU, Muhlestein JB, Navaravong L, Ranjan RA, Steinberg BA, Bunch TJ (2021). Long-term outcomes in patients treated with flecainide for atrial fibrillation with stable coronary artery disease. Am Heart J (243, pp. 127-139). United States. (Read full article)
    2. Khan MS, Lange M, Ranjan R, Sharma V, Glotzbach JP, Selzman C, Dosdall DJ (2021). Premature atrial stimulation accentuates conduction abnormalities in cardiac surgery patients that develop postoperative atrial fibrillation. J Electrocardiol (69, pp. 36-43). United States. (Read full article)
    3. Lange M, Hirahara AM, Ranjan R, Stoddard GJ, Dosdall DJ (2021). Atrial slow conduction develops and dynamically expands during premature stimulation in an animal model of persistent atrial fibrillation. PLoS One (16(10), pp. e0258285). United States. (Read full article)

    Patent

    1. Polejaeva I, Wang Z, Hu S, Ranjan R, Thomas AJ, Davies CJ, White KL (2019). Model and Method for a Transgenic Bovidae Expressing Cardiac Fibrosis and Associated Pathology. U.S. Patent No. Application has been filed and published as US 2015/0033370 by the United States Patent and Trademark Office. Washington, D.C.:U.S. Patent and Trademark Office.
    2. (2018). Implantable cardiac devices and methods for delivering low energy, pain-free defibrillation signals for ventricular arrhythmias. U.S. Patent No. 0765875. Washington, D.C.:U.S. Patent and Trademark Office.