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Last Name
Institution

Gaurav A. Upadhyay, Md

TitleAssociate Professor
InstitutionUniversity of Chicago
DepartmentMedicine-Cardiology
AddressChicago IL 60637
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    Collapse Bibliographic 
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Nishimura T, Patel HN, Wang S, Upadhyay GA, Smith HL, Ozcan C, Shatz DY, Nayak HM, Patel AR, Tung R. Prognostic value of cardiac magnetic resonance septal late gadolinium enhancement patterns for periaortic ventricular tachycardia ablation: Heterogeneity of the anteroseptal substrate in nonischemic cardiomyopathy. Heart Rhythm. 2020 Dec 08. PMID: 33301979.
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    2. Nayak HM, Aziz ZA, Kwasnik A, Lee E, Shatz DY, Tenorio R, Besser SA, Beaser AD, Ozcan C, Upadhyay GA, Tung R. Indirect and Direct Evidence for 3-D Activation During Left Atrial Flutter: Anatomy of Epicardial Bridging. JACC Clin Electrophysiol. 2020 Dec; 6(14):1812-1823. PMID: 33357578.
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    3. Mazzone S, Kohli U, Aziz ZA, Beaser AD, Upadhyay GA, Tung R, Nayak HM. Late presentation of recurrent syncope after permanent pacemaker implantation due to Lead-Header malapposition. Indian Pacing Electrophysiol J. 2020 Nov 30. PMID: 33271274.
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    4. Nishimura T, Upadhyay GA, Aziz ZA, Beaser AD, Shatz DY, Nayak HM, Tung R. Circuit Determinants of Ventricular Tachycardia Cycle Length: Characterization of Fast and Unstable Human VT. Circulation. 2020 Nov 10. PMID: 33169628.
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    5. Mihos CG, Yucel E, Upadhyay GA, Orencole MP, Singh JP, Picard MH. Left ventricle and mitral valve reverse remodeling in response to cardiac resynchronization therapy in nonischemic cardiomyopathy. Echocardiography. 2020 Oct; 37(10):1557-1565. PMID: 32914427.
      View in: PubMed
    6. Liao H, Wei W, Tanager KS, Miele F, Upadhyay GA, Beaser AD, Aziz Z, Nayak HM, Ozcan C, Nishimura T, Jiang R, Shatz D, Husain AN, Tung R. Left ventricular summit arrhythmias with an abrupt V3 transition: Anatomy of the aortic interleaflet triangle vantage point. Heart Rhythm. 2021 Jan; 18(1):10-19. PMID: 32707175.
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    7. Beaser AD, Aziz Z, Besser SA, Jones CI, Jameria Z, Kannan A, Upadhyay GA, Broman MT, Ozcan C, Tung R, Nayak HM. Characterization of Lead Adherence Using Intravascular Ultrasound to Assess Difficulty of Transvenous Lead Extraction. Circ Arrhythm Electrophysiol. 2020 08; 13(8):e007726. PMID: 32628867.
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    8. Carter SV, Jameria Z, Karagodin I, Tung R, Upadhyay GA. Real-world safety of magnetic resonance imaging after His bundle pacemaker implantation. HeartRhythm Case Rep. 2020 Oct; 6(10):697-701. PMID: 33101935.
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    9. Tung R, Upadhyay GA. Defining Left Bundle Branch Block Patterns in Cardiac Resynchronisation Therapy: A Return to His Bundle Recordings. Arrhythm Electrophysiol Rev. 2020 Jun 03; 9(1):28-33. PMID: 32637117.
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    10. Upadhyay GA, Tung R. Keeping pace with the competition: His bundle versus biventricular pacing in heart failure. Curr Opin Cardiol. 2020 05; 35(3):295-307. PMID: 32205478.
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    11. Nishimura T, Beaser AD, Aziz ZA, Upadhyay GA, Ozcan C, Raiman M, Shatz DY, Besser SA, Shatz NA, Nayak HM, Tung R. Periaortic ventricular tachycardia in structural heart disease: Evidence of localized reentrant mechanisms. Heart Rhythm. 2020 Aug; 17(8):1271-1279. PMID: 32325198.
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    12. Upadhyay GA. The Variable Arrangement of the Atrioventricular Conduction Axis Within the Triangle of Koch: Millimeters Matter. JACC Clin Electrophysiol. 2020 04; 6(4):378-381. PMID: 32327070.
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    13. Tung R, Raiman M, Liao H, Zhan X, Chung FP, Nagel R, Hu H, Jian J, Shatz DY, Besser SA, Aziz ZA, Beaser AD, Upadhyay GA, Nayak HM, Nishimura T, Xue Y, Wu S. Simultaneous Endocardial and Epicardial Delineation of 3D Reentrant Ventricular Tachycardia. J Am Coll Cardiol. 2020 03 03; 75(8):884-897. PMID: 32130924.
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    14. Jiang R, Beaser AD, Aziz Z, Upadhyay GA, Nayak HM, Tung R. High-Density Grid Catheter for Detailed Mapping of Sinus Rhythm and Scar-Related Ventricular Tachycardia: Comparison With a Linear Duodecapolar Catheter. JACC Clin Electrophysiol. 2020 03; 6(3):311-323. PMID: 32192682.
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    15. Jameria Z, Mokhlesi B, Sauser E, Holloway S, Upadhyay GA, Nayak HM. First report of concomitant subcutaneous defibrillator and phrenic nerve stimulator implantation in a patient with severe central sleep apnea and left ventricular systolic dysfunction. HeartRhythm Case Rep. 2020 Jan; 6(1):44-47. PMID: 31956502.
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    16. Upadhyay GA. Atrial High Rate Episodes and the Risk of Ventricular Arrhythmias: Correlation or Causation? JACC Clin Electrophysiol. 2019 10; 5(10):1209-1212. PMID: 31648746.
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    17. Upadhyay GA, Cherian T, Shatz DY, Beaser AD, Aziz Z, Ozcan C, Broman MT, Nayak H, Tung R. Response by Upadhyay et al to Letter Regarding Article, "Intracardiac Delineation of Septal Conduction in Left Bundle-Branch Block Patterns: Mechanistic Evidence of Left Intrahisian Block Circumvented by His Bundle Pacing". Circulation. 2019 10; 140(14):e713-e714. PMID: 31567009.
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    18. Aziz Z, Shatz D, Raiman M, Upadhyay GA, Beaser AD, Besser SA, Shatz NA, Fu Z, Jiang R, Nishimura T, Liao H, Nayak HM, Tung R. Targeted Ablation of Ventricular Tachycardia Guided by Wavefront Discontinuities During Sinus Rhythm: A New Functional Substrate Mapping Strategy. Circulation. 2019 10 22; 140(17):1383-1397. PMID: 31533463.
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    19. Upadhyay GA, Alenghat FJ. Catheter Ablation for Atrial Fibrillation in 2019. JAMA. 2019 08 20; 322(7):686-687. PMID: 31429886.
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    20. Mihos CG, Santana O, Yucel E, Capoulade R, Upadhyay GA, Orencole MP, Singh JP, Picard MH. The effects of cardiac resynchronization therapy on left ventricular and mitral valve geometry and secondary mitral regurgitation in patients with left bundle branch block. Echocardiography. 2019 08; 36(8):1450-1458. PMID: 31424113.
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    21. Upadhyay GA, Vijayaraman P, Nayak HM, Verma N, Dandamudi G, Sharma PS, Saleem M, Mandrola J, Genovese D, Oren JW, Subzposh FA, Aziz Z, Beaser A, Shatz D, Besser S, Lang RM, Trohman RG, Knight BP, Tung R. On-treatment comparison between corrective His bundle pacing and biventricular pacing for cardiac resynchronization: A secondary analysis of the His-SYNC Pilot Trial. Heart Rhythm. 2019 12; 16(12):1797-1807. PMID: 31096064.
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    22. Upadhyay GA, Vijayaraman P, Nayak HM, Verma N, Dandamudi G, Sharma PS, Saleem M, Mandrola J, Genovese D, Tung R. His Corrective Pacing or Biventricular Pacing for Cardiac Resynchronization in Heart Failure. J Am Coll Cardiol. 2019 07 09; 74(1):157-159. PMID: 31078637.
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    23. Upadhyay GA, Cherian T, Shatz DY, Beaser AD, Aziz Z, Ozcan C, Broman MT, Nayak HM, Tung R. Intracardiac Delineation of Septal Conduction in Left Bundle-Branch Block Patterns. Circulation. 2019 04 16; 139(16):1876-1888. PMID: 30704273.
      View in: PubMed
    24. Upadhyay GA, Tung R. Intermittent left bundle branch block: What is the mechanism? J Cardiovasc Electrophysiol. 2019 08; 30(8):1380-1383. PMID: 30907486.
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    25. Oesterle A, Upadhyay GA. The Reply. Am J Med. 2019 04; 132(4):e549-e550. PMID: 30935464.
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    26. Jiang R, Buch E, Gima J, Upadhyay GA, Nayak HM, Beaser AD, Aziz Z, Shivkumar K, Tung R. Feasibility of percutaneous epicardial mapping and ablation for refractory atrial fibrillation: Insights into substrate and lesion transmurality. Heart Rhythm. 2019 08; 16(8):1151-1159. PMID: 30776449.
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    27. Guo J, Nayak HM, Besser SA, Beaser A, Aziz Z, Broman M, Ozcan C, Tung R, Upadhyay GA. Impact of Atrial Fibrillation Ablation on Recurrent Hospitalization: A Nationwide Cohort Study. JACC Clin Electrophysiol. 2019 03; 5(3):330-339. PMID: 30898236.
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    28. Bukari A, Wali E, Deshmukh A, Aziz Z, Broman M, Beaser A, Upadhyay G, Nayak H, Tung R, Ozcan C. Prevalence and predictors of atrial arrhythmias in patients with sinus node dysfunction and atrial pacing. J Interv Card Electrophysiol. 2018 Dec; 53(3):365-371. PMID: 30293095.
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    29. Vijayaraman P, Chung MK, Dandamudi G, Upadhyay GA, Krishnan K, Crossley G, Bova Campbell K, Lee BK, Refaat MM, Saksena S, Fisher JD, Lakkireddy D. His Bundle Pacing. J Am Coll Cardiol. 2018 08 21; 72(8):927-947. PMID: 30115232.
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    30. McClelland I, Nayak HM, Tung R, Upadhyay GA. Respiratory rate trending as a cause for atrial lead noise: A first report in an implantable cardioverter-defibrillator patient. HeartRhythm Case Rep. 2018 Nov; 4(11):545-547. PMID: 30479957.
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    31. Upadhyay GA, Tung R. His Bundle Pacing for Cardiac Resynchronization. Card Electrophysiol Clin. 2018 09; 10(3):511-517. PMID: 30172288.
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    32. Wali E, Deshmukh A, Bukari A, Broman M, Aziz Z, Beaser A, Upadhyay G, Nayak HM, Tung R, Ozcan C. Impact of high-grade atrioventricular block and cumulative frequent pacing on atrial arrhythmias. Pacing Clin Electrophysiol. 2018 09; 41(9):1158-1164. PMID: 29931776.
      View in: PubMed
    33. Gampa A, Upadhyay GA. Treatment of Neurocardiogenic Syncope: From Conservative to Cutting-edge. J Innov Card Rhythm Manag. 2018 Jul; 9(7):3221-3231. PMID: 32477815.
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    34. Jones CI, Cherian T, Upadhyay GA, Tung R. Wide complex tachycardia transitioning between 2 morphologies: What is the mechanism? J Cardiovasc Electrophysiol. 2018 09; 29(9):1327-1329. PMID: 29846994.
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    35. Berg DD, Vaduganathan M, Upadhyay GA, Singh JP, Mehra MR, Stewart GC. Cardiac Implantable Electronic Devices in Patients With Left Ventricular Assist Systems. J Am Coll Cardiol. 2018 04 03; 71(13):1483-1493. PMID: 29598870.
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    36. Belkin MN, Soria CE, Waldo AL, Borleffs CJW, Hayes DL, Tung R, Singh JP, Upadhyay GA. Incidence and Clinical Significance of New-Onset Device-Detected Atrial Tachyarrhythmia: A Meta-Analysis. Circ Arrhythm Electrophysiol. 2018 03; 11(3):e005393. PMID: 29540371.
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    37. Oesterle A, Weber B, Tung R, Choudhry NK, Singh JP, Upadhyay GA. Preventing Postoperative Atrial Fibrillation After Noncardiac Surgery: A Meta-analysis. Am J Med. 2018 07; 131(7):795-804.e5. PMID: 29476748.
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    38. Baranchuk A, Refaat MM, Patton KK, Chung MK, Krishnan K, Kutyifa V, Upadhyay G, Fisher JD, Lakkireddy DR. Cybersecurity for Cardiac Implantable Electronic Devices: What Should You Know? J Am Coll Cardiol. 2018 03 20; 71(11):1284-1288. PMID: 29475627.
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    39. Upadhyay GA, Tung R. Pushing and recognizing the limits of nonresponse to cardiac resynchronization therapy: A valuable "negative" trial. Heart Rhythm. 2018 06; 15(6):877-878. PMID: 29382544.
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    40. Mihos CG, Yucel E, Capoulade R, Orencole MP, Upadhyay GA, Santana O, Singh JP, Picard MH. Effects of cardiac resynchronization therapy after inferior myocardial infarction on secondary mitral regurgitation and mitral valve geometry. Pacing Clin Electrophysiol. 2018 02; 41(2):114-121. PMID: 29222864.
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    41. Kusumoto FM, Hao SC, Slotwiner DJ, Cheung JW, Hsu JC, Kowalski M, Madden RA, Mason PK, Mendenhall GS, Nair DG, Nasir JM, Silverstein JR, Sutton B, Tarakji KG, Upadhyay GA, Zeitler EP. Arrhythmia care in a value-based environment: Past, present, and future: Developed and endorsed by the Heart Rhythm Society (HRS). Heart Rhythm. 2018 02; 15(2):e5-e15. PMID: 29254674.
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    42. Cherian TS, Upadhyay GA. Right Ventricular Pacing and Cardiac Resynchronization Devices. Card Electrophysiol Clin. 2018 03; 10(1):31-42. PMID: 29428140.
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    43. Chua K, Upadhyay GA, Lee E, Aziz Z, Beaser AD, Ozcan C, Broman M, Nayak HM, Tung R. High-resolution mapping of the triangle of Koch: Spatial heterogeneity of fast pathway atrionodal connections. Heart Rhythm. 2018 03; 15(3):421-429. PMID: 29081398.
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    44. Belkin MN, Upadhyay GA. Does Cardiac Resynchronization Therapy Benefit Patients with Non-Left Bundle Branch Block Prolonged QRS Patterns? Curr Cardiol Rep. 2017 10 24; 19(12):125. PMID: 29064041.
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    45. Mihos CG, Yucel E, Capoulade R, Orencole MP, Upadhyay GA, Santana O, Singh JP, Picard MH. Impact of cardiac resynchronization therapy on mitral valve apparatus geometry and clinical outcomes in patients with secondary mitral regurgitation. Echocardiography. 2017 Nov; 34(11):1561-1567. PMID: 28895197.
      View in: PubMed
    46. Moss JD, Flatley EE, Beaser AD, Shin JH, Nayak HM, Upadhyay GA, Burke MC, Jeevanandam V, Uriel N, Tung R. Characterization of Ventricular Tachycardia After Left Ventricular Assist Device Implantation as Destination Therapy: A Single-Center Ablation Experience. JACC Clin Electrophysiol. 2017 12 11; 3(12):1412-1424. PMID: 29759673.
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    47. Ajijola OA, Upadhyay GA, Macias C, Shivkumar K, Tung R. Permanent His-bundle pacing for cardiac resynchronization therapy: Initial feasibility study in lieu of left ventricular lead. Heart Rhythm. 2017 09; 14(9):1353-1361. PMID: 28400315.
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    48. Beaser AD, Chua K, Upadhyay G, Tung R. Reply to the Editor-How do we define fusion on intracardiac electrograms? Heart Rhythm. 2017 05; 14(5):e52. PMID: 28188929.
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    49. Beaser AD, Chua KC, Upadhyay GA, Tung R. Entrainment of ventricular tachycardia: Is the pacing site in or out? Heart Rhythm. 2016 12; 13(12):2399-2400. PMID: 27855854.
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    50. Upadhyay GA, Tung R. Selective versus non-selective his bundle pacing for cardiac resynchronization therapy. J Electrocardiol. 2017 Mar - Apr; 50(2):191-194. PMID: 27890282.
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    51. Green J, Aziz Z, Nayak HM, Upadhyay GA, Moss JD, Tung R. "Left ventricular" AV nodal reentrant tachycardia: Case report and review of the literature. HeartRhythm Case Rep. 2016 Sep; 2(5):367-371. PMID: 28491712.
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    52. Upadhyay GA, Singh JP. Spinal Cord Stimulation for Heart Failure in the DEFEAT-HF Study: Lost Battle or Lasting Opportunities? JACC Heart Fail. 2016 Feb; 4(2):137-139. PMID: 26746373.
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    53. Upadhyay GA, Singh JP. Cause of death and CRT device selection: striving for certitude? Eur Heart J. 2015 Nov 01; 36(41):2777-9. PMID: 26374850.
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    54. Singal G, Upadhyay GA, Borgquist R, Friedman DJ, Chatterjee NA, Kandala J, Park MY, Orencole M, Dec GW, Picard MH, Singh JP, Mela T. Renal Response in Patients with Chronic Kidney Disease Predicts Outcome Following Cardiac Resynchronization Therapy. Pacing Clin Electrophysiol. 2015 Oct; 38(10):1192-200. PMID: 26179289.
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    55. Upadhyay GA, Chatterjee NA, Kandala J, Friedman DJ, Park MY, Tabtabai SR, Hung J, Singh JP. Assessing mitral regurgitation in the prediction of clinical outcome after cardiac resynchronization therapy. Heart Rhythm. 2015 Jun; 12(6):1201-8. PMID: 25708879.
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    56. Friedman DJ, Upadhyay GA, Rajabali A, Altman RK, Orencole M, Parks KA, Moore SA, Park MY, Picard MH, Ruskin JN, Singh JP, Heist EK. Progressive ventricular dysfunction among nonresponders to cardiac resynchronization therapy: baseline predictors and associated clinical outcomes. Heart Rhythm. 2014 Nov; 11(11):1991-8. PMID: 25106864.
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    57. Bose A, Upadhyay GA, Kandala J, Heist EK, Mela T, Parks KA, Singh JP. Does prior valve surgery change outcome in patients treated with cardiac resynchronization therapy? J Cardiovasc Electrophysiol. 2014 Nov; 25(11):1206-13. PMID: 24903306.
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    58. Chatterjee NA, Upadhyay GA, Singal G, Parks KA, Dec GW, Singh JP, Lewis GD. Pre-capillary pulmonary hypertension and right ventricular dilation predict clinical outcome in cardiac resynchronization therapy. JACC Heart Fail. 2014 Jun; 2(3):230-7. PMID: 24952689.
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    59. Dudzinski DM, Schwartzenberg S, Upadhyay GA, Hung J. Role of Transesophageal Echocardiography in Left Atrial Appendage Device Closure. Interv Cardiol Clin. 2014 Apr; 3(2):255-280. PMID: 28582170.
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    60. Vegh EM, Kandala J, Orencole M, Upadhyay GA, Sharma A, Miller A, Merkely B, Parks KA, Singh JP. Device-measured physical activity versus six-minute walk test as a predictor of reverse remodeling and outcome after cardiac resynchronization therapy for heart failure. Am J Cardiol. 2014 May 01; 113(9):1523-8. PMID: 24641966.
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    61. Bose A, Kandala J, Upadhyay GA, Riedl L, Ahmado I, Padmanabhan R, Gewirtz H, Mulligan LJ, Singh JP. Impact of myocardial viability and left ventricular lead location on clinical outcome in cardiac resynchronization therapy recipients with ischemic cardiomyopathy. J Cardiovasc Electrophysiol. 2014 May; 25(5):507-513. PMID: 24350650.
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    62. Friedman DJ, Upadhyay GA, Singal G, Orencole M, Moore SA, Parks KA, Heist EK, Singh JP. Usefulness and consequences of cardiac resynchronization therapy in dialysis-dependent patients with heart failure. Am J Cardiol. 2013 Nov 15; 112(10):1625-31. PMID: 23993121.
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    63. Kandala J, Upadhyay GA, Pokushalov E, Wu S, Drachman DE, Singh JP. Meta-analysis of stem cell therapy in chronic ischemic cardiomyopathy. Am J Cardiol. 2013 Jul 15; 112(2):217-25. PMID: 23623290.
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    64. Kandala J, Upadhyay GA, Altman RK, Parks KA, Orencole M, Mela T, Kevin Heist E, Singh JP. QRS morphology, left ventricular lead location, and clinical outcome in patients receiving cardiac resynchronization therapy. Eur Heart J. 2013 Aug; 34(29):2252-62. PMID: 23571836.
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    65. Friedman DJ, Upadhyay GA, Altman RK, Orencole M, Barrett CD, Mela T, Kevin Heist E, Singh JP. The anatomic and electrical location of the left ventricular lead predicts ventricular arrhythmia in cardiac resynchronization therapy. Heart Rhythm. 2013 May; 10(5):668-75. PMID: 23274368.
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    66. Kumar P, Upadhyay GA, Cavaliere-Ogus C, Heist EK, Altman RK, Chatterjee NA, Parks KA, Singh JP. Right ventricular lead adjustment in cardiac resynchronization therapy and acute hemodynamic response: a pilot study. J Interv Card Electrophysiol. 2013 Apr; 36(3):223-31. PMID: 23263893.
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    67. Upadhyay GA, Mela T, Singh JP. Republished: The burden of inappropriate shocks in young people and how to avoid them. Postgrad Med J. 2012 12; 88(1046):719-28. PMID: 23178732.
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    68. Upadhyay GA, Gainor JF, Stamm LM, Weinberg AN, Dec GW, Ruskin JN. Acute nonrheumatic streptococcal myocarditis: STEMI mimic in young adults. Am J Med. 2012 Dec; 125(12):1230-3. PMID: 23062402.
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    69. Upadhyay GA, Mela T, Singh JP. The burden of inappropriate shocks in young people and how to avoid them. Heart. 2012 Oct; 98(19):1457-66. PMID: 22965797.
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    70. Kandala J, Upadhyay GA, Altman RK, Bose A, Heist EK, Mela T, Singh JP. Electrical delay in apically positioned left ventricular leads and clinical outcome after cardiac resynchronization therapy. J Cardiovasc Electrophysiol. 2013 Feb; 24(2):182-7. PMID: 22966852.
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    71. Shah RV, Altman RK, Park MY, Zilinski J, Leyton-Mange J, Orencole M, Picard MH, Barrett CD, Heist EK, Upadhyay G, Das R, Singh JP, Das S. Usefulness of hemoglobin A(1c) to predict outcome after cardiac resynchronization therapy in patients with diabetes mellitus and heart failure. Am J Cardiol. 2012 Sep 01; 110(5):683-8. PMID: 22632827.
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    72. Altman RK, Parks KA, Schlett CL, Orencole M, Park MY, Truong QA, Deeprasertkul P, Moore SA, Barrett CD, Lewis GD, Das S, Upadhyay GA, Heist EK, Picard MH, Singh JP. Multidisciplinary care of patients receiving cardiac resynchronization therapy is associated with improved clinical outcomes. Eur Heart J. 2012 Sep; 33(17):2181-8. PMID: 22613342.
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    73. Upadhyay GA, Steinberg JS. Managing atrial fibrillation in the CRT patient: controversy or consensus? Heart Rhythm. 2012 Aug; 9(8 Suppl):S51-9. PMID: 22521931.
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    74. Chatterjee NA, Upadhyay GA, Ellenbogen KA, Hayes DL, Singh JP. Atrioventricular nodal ablation in atrial fibrillation: a meta-analysis of biventricular vs. right ventricular pacing mode. Eur J Heart Fail. 2012 Jun; 14(6):661-7. PMID: 22436544.
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    75. Chatterjee NA, Upadhyay GA, Ellenbogen KA, McAlister FA, Choudhry NK, Singh JP. Atrioventricular nodal ablation in atrial fibrillation: a meta-analysis and systematic review. Circ Arrhythm Electrophysiol. 2012 Feb; 5(1):68-76. PMID: 22187425.
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    76. Upadhyay GA, Singh JP. Making a splash? -Intrathoracic impedance and the prediction of arrhythmic events.-. Circ J. 2011; 75(11):2539-40. PMID: 21963573.
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    77. Upadhyay G, Yin Y, Yuan H, Li X, Derynck R, Glazer RI. Stem cell antigen-1 enhances tumorigenicity by disruption of growth differentiation factor-10 (GDF10)-dependent TGF-beta signaling. Proc Natl Acad Sci U S A. 2011 May 10; 108(19):7820-5. PMID: 21518866.
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    78. Hayward RM, Upadhyay GA, Mela T, Ellinor PT, Barrett CD, Heist EK, Verma A, Choudhry NK, Singh JP. Pulmonary vein isolation with complex fractionated atrial electrogram ablation for paroxysmal and nonparoxysmal atrial fibrillation: A meta-analysis. Heart Rhythm. 2011 Jul; 8(7):994-1000. PMID: 21397045.
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    79. Upadhyay GA, Choudhry NK, Auricchio A, Ruskin J, Singh JP. Cardiac resynchronization in patients with atrial fibrillation: a meta-analysis of prospective cohort studies. J Am Coll Cardiol. 2008 Oct 07; 52(15):1239-46. PMID: 18926327.
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    80. Upadhyay G, Goessling W, North TE, Xavier R, Zon LI, Yajnik V. Molecular association between beta-catenin degradation complex and Rac guanine exchange factor DOCK4 is essential for Wnt/beta-catenin signaling. Oncogene. 2008 Oct 02; 27(44):5845-55. PMID: 18641688.
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    81. Reddy ST, Farnan JM, Yoon JD, Leo T, Upadhyay GA, Humphrey HJ, Arora VM. Third-year medical students' participation in and perceptions of unprofessional behaviors. Acad Med. 2007 Oct; 82(10 Suppl):S35-9. PMID: 17895686.
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    82. Michelassi F, Taschieri A, Tonelli F, Sasaki I, Poggioli G, Fazio V, Upadhyay G, Hurst R, Sampietro GM, Fazi M, Funayama Y, Pierangeli F. An international, multicenter, prospective, observational study of the side-to-side isoperistaltic strictureplasty in Crohn's disease. Dis Colon Rectum. 2007 Mar; 50(3):277-84. PMID: 17245614.
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    83. Michelassi F, Upadhyay GA. Side-to-side isoperistaltic strictureplasty in the treatment of extensive Crohn's disease. J Surg Res. 2004 Mar; 117(1):71-8. PMID: 15013717.
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