All Stories

  1. Interventional electrophysiology in Bulgaria in 2023: data from the electronic registry BG-EPHY

    Article • Bulgarian Cardiology, May 2024, Pensoft Publishers

    Professor Tchavdar N Shalganov

  2. Cardioneuroablation for recurrent vasovagal syncope and functional sinus bradycardia: a case series

    Article • Bulgarian Cardiology, January 2024, Pensoft Publishers

    Professor Tchavdar N Shalganov

  3. Editorial

    Article • Bulgarian Cardiology, January 2024, Pensoft Publishers

    Professor Tchavdar N Shalganov

  4. Double fire tachycardia

    Article • Bulgarian Cardiology, January 2024, Pensoft Publishers

    Professor Tchavdar N Shalganov

  5. Cardioneuroablation for the Treatment of Vasovagal Syncope: Current Status and Impact on Quality of Life

    Article • Current Cardiology Reports, November 2023, Springer Science + Business Media

    Professor Tchavdar N Shalganov

  6. Interventional electrophysiology in bulgaria in 2022: data from the electronic registry BG-EPHY

    Article • Bulgarian Cardiology, July 2023, Pensoft Publishers

    Professor Tchavdar N Shalganov

  7. Myocardial infarction-related ventricular arrhythmias

    Article • Bulgarian Cardiology, April 2023, Pensoft Publishers

    Professor Tchavdar N Shalganov

  8. Proposing national diagnostic reference levels for electrophysiology studies and catheter ablation procedures in Bulgaria

    Article • Physica Medica, April 2023, Elsevier

    Professor Tchavdar N Shalganov

  9. Early catheter ablation for ventricular tachycardia in structural heart disease

    Article • Frontiers in Cardiovascular Medicine, November 2022, Frontiers

    Professor Tchavdar N Shalganov

  10. Adherence to the “Atrial fibrillation Better Care” (ABC) pathway in patients with atrial fibrillation and cancer: A report from the ESC-EHRA EURObservational Research Programme in atrial fibrillation (EORP-AF) General Long-Term Registry

    Article • European Journal of Internal Medicine, November 2022, Elsevier

    Professor Tchavdar N Shalganov, Professor Erkin Mirrakhimov, Francisco Marin

  11. Clinical complexity and impact of the ABC (Atrial fibrillation Better Care) pathway in patients with atrial fibrillation: a report from the ESC-EHRA EURObservational Research Programme in AF General Long-Term Registry

    Article • BMC Medicine, September 2022, Springer Science + Business Media

    Professor Tchavdar N Shalganov, Professor Erkin Mirrakhimov, Francisco Marin

  12. 2022 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death

    Article • European Heart Journal, August 2022, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov

  13. Epidemiology and impact of frailty in patients with atrial fibrillation in Europe

    Article • Age and Ageing, August 2022, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov, Professor Erkin Mirrakhimov, Francisco Marin

  14. Interventional electrophysiology in Bulgaria in 2021: data from the electronic registry BG-EPHY

    Article • Bulgarian Cardiology, June 2022, Pensoft Publishers

    Professor Tchavdar N Shalganov

  15. MRI for diagnosing MINOCA

    Article • Bulgarian Cardiology, June 2022, Pensoft Publishers

    Professor Tchavdar N Shalganov

  16. Protocol for updated systematic review of catheter ablation for ventricular tachycardia

    Article • June 2022, International Platform of Registered Systematic Review and Meta-analysis Protocols (INPLASY)

    Professor Tchavdar N Shalganov

  17. Impact of anthropometric factors on outcomes in atrial fibrillation patients: analysis on 10 220 patients from the European Society of Cardiology (ESC)-European Heart Rhythm Association (EHRA) EurObservational Research Programme on Atrial Fibrillation ...

    Article • European Journal of Preventive Cardiology, June 2022, Oxford University Press (OUP)

    Nika Kuridze, Professor Tchavdar N Shalganov, Professor Erkin Mirrakhimov, Francisco Marin

  18. Cardiac troponins and adverse outcomes in European patients with atrial fibrillation: A report from the ESC-EHRA EORP atrial fibrillation general long-term registry

    Article • European Journal of Internal Medicine, May 2022, Elsevier

    Nika Kuridze, Professor Tchavdar N Shalganov, Francisco Marin

  19. Left free wall‐sided Mahaim type fiber and A‐V nodal reentry tachycardia: Unusual but not impossible combination

    Article • Clinical Case Reports, April 2022, Wiley

    Professor Tchavdar N Shalganov

  20. Impact of malignancy on outcomes in European patients with atrial fibrillation: A report from the ESC‐EHRA EURObservational research programme in atrial fibrillation general long‐term registry

    Article • European Journal of Clinical Investigation, March 2022, Wiley

    Professor Tchavdar N Shalganov, Nika Kuridze, Professor Erkin Mirrakhimov, Francisco Marin

  21. Impact of renal impairment on atrial fibrillation: ESC‐EHRA EORP‐AF Long‐Term General Registry

    Article • European Journal of Clinical Investigation, January 2022, Wiley

    Professor Tchavdar N Shalganov, Nika Kuridze, Professor Erkin Mirrakhimov, Francisco Marin

  22. LEFT FREE WALL-SIDED MAHAIM TYPE FIBER AND AV NODAL REENTRY TACHYCARDIA -- UNUSUAL BUT NOT IMPOSSIBLE COMBINATION

    Article • January 2022, Authorea, Inc.

    Professor Tchavdar N Shalganov

  23. Q waves are the strongest electrocardiographic variable associated with primary prophylactic implantable cardioverter-defibrillator benefit: a prospective multicentre study

    Article • EP Europace, November 2021, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov

  24. Clinical utility and prognostic implications of the novel 4S-AF scheme to characterize and evaluate patients with atrial fibrillation: a report from ESC-EHRA EORP-AF Long-Term General Registry

    Article • EP Europace, November 2021, Oxford University Press (OUP)

    Nika Kuridze, Professor Tchavdar N Shalganov, Professor Erkin Mirrakhimov, Francisco Marin

  25. Impact of clinical phenotypes on management and outcomes in European atrial fibrillation patients: a report from the ESC-EHRA EURObservational Research Programme in AF (EORP-AF) General Long-Term Registry

    Article • BMC Medicine, October 2021, Springer Science + Business Media

    Professor Tchavdar N Shalganov, Nika Kuridze, Professor Erkin Mirrakhimov, Francisco Marin

  26. Anatomic variants of pulmonary venous drainage and their relation to recurrences of atrial fibrillation after pulmonary vein isolation

    Article • Bulgarian Cardiology, October 2021, Pensoft Publishers

    Professor Tchavdar N Shalganov

  27. Catheter ablation of macroreentrant atrial tachycardias following transconduit puncture access in a patient after total cavopulmonary connection with an extracardiac conduit

    Article • Bulgarian Cardiology, October 2021, Pensoft Publishers

    Professor Tchavdar N Shalganov

  28. High-sensitivity cardiac troponin and C-reactive protein dynamics after cardiac electrophysiological procedures

    Article • Bulgarian Cardiology, October 2021, Pensoft Publishers

    Professor Tchavdar N Shalganov

  29. Left atrial thrombosis in patients with atrial fibrillation during uninterrupted oral anticoagulation

    Article • Bulgarian Cardiology, October 2021, Pensoft Publishers

    Professor Tchavdar N Shalganov

  30. Review of interventional electrophysiology in Bulgaria in 2019 and 2020: data from the electronic ablation registry BG-EPHY 

    Article • Bulgarian Cardiology, October 2021, Pensoft Publishers

    Professor Tchavdar N Shalganov

  31. Recurrences of atrial fibrillation after first radiofrequency pulmonary vein isolation in patients with paroxysmal atrial fibrillation: single center follow-up

    Article • Bulgarian Cardiology, December 2020, Pensoft Publishers

    Professor Tchavdar N Shalganov

  32. Distribution and area of low voltage and dense scar zones and their relation to left atrial enlargement in ablation-naïve patients with paroxysmal atrial fibrillation

    Article • Bulgarian Cardiology, October 2020, Pensoft Publishers

    Professor Tchavdar N Shalganov

  33. Relation of outcomes to ABC (Atrial Fibrillation Better Care) pathway adherent care in European patients with atrial fibrillation: an analysis from the ESC-EHRA EORP Atrial Fibrillation General Long-Term (AFGen LT) Registry

    Article • EP Europace, October 2020, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov, Nika Kuridze, Professor Erkin Mirrakhimov, Francisco Marin

  34. 2020 ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association of Cardio-Thoracic Surgery (EACTS)

    Article • European Heart Journal, August 2020, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov

  35. Catheter ablation of atrial tachycardia via extracardiac access

    Article • June 2020, Pensoft Publishers

    Professor Tchavdar N Shalganov

  36. Clinical effectiveness of primary prevention implantable cardioverter-defibrillators: results of the EU-CERT-ICD controlled multicentre cohort study

    Article • European Heart Journal, May 2020, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov, Prof. Markus Zabel

  37. Catheter Ablation of Idiopathic Ventricular Arrhythmias Originating from the Para-Hisian area - QRS Morphology Change and Late Effect of the Ablation: Case Series

    Article • Folia Medica, March 2020, Pensoft Publishers

    Professor Tchavdar N Shalganov

  38. Appropriate Shocks and Mortality in Patients With Versus Without Diabetes With Prophylactic Implantable Cardioverter Defibrillators

    Article • Diabetes Care, October 2019, American Diabetes Association

    Professor Tchavdar N Shalganov

  39. Present criteria for prophylactic ICD implantation: Insights from the EU-CERT-ICD (Comparative Effectiveness Research to Assess the Use of Primary ProphylacTic Implantable Cardioverter Defibrillators in EUrope) project

    Article • Journal of Electrocardiology, September 2019, Elsevier

    Professor Tchavdar N Shalganov

  40. Atrial fibrillation history impact on catheter ablation outcome. Findings from the ESC-EHRA Atrial Fibrillation Ablation Long-Term Registry

    Article • Pacing and Clinical Electrophysiology, January 2019, Wiley

    Professor Tchavdar N Shalganov

  41. OUP accepted manuscript

    Article • EP Europace, January 2019, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov, Nika Kuridze, Professor Erkin Mirrakhimov, Francisco Marin

  42. Rationale and design of the EU-CERT-ICD prospective study: comparative effectiveness of prophylactic ICD implantation

    Article • ESC Heart Failure, October 2018, Wiley

    Professor Tchavdar N Shalganov, Dr Vassil B Traykov, Prof. Markus Zabel, Professor Georg Schmidt

  43. Impact of body mass index on the outcome of catheter ablation of atrial fibrillation

    Article • Heart, October 2018, BMJ

    Professor Tchavdar N Shalganov

  44. Correlation between the sudden jump-like increases of the atrio-Hisian interval induced during burst atrial pacing and during programmed atrial stimulation in patients with atrioventricular nodal reentrant tachycardia

    Article • Indian Pacing and Electrophysiology Journal, March 2018, Elsevier

    Professor Tchavdar N Shalganov

  45. Contemporary stroke prevention strategies in 11 096 European patients with atrial fibrillation: a report from the EURObservational Research Programme on Atrial Fibrillation (EORP-AF) Long-Term General Registry

    Article • EP Europace, September 2017, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov, Professor Erkin Mirrakhimov, Nika Kuridze, Francisco Marin

  46. The non-fluoroscopic navigation reduces significantly not only the fluoroscopic exposure during catheter ablation of the cavotricuspid isthmus but the total radiofrequency time as well

    Article • Acta Cardiologica, February 2017, Taylor & Francis

    Professor Tchavdar N Shalganov

  47. 2016 ESC GUIDELINES FOR THE MANAGEMENT OF ATRIAL FIBRILLATION DEVELOPEDIN COLLABORATION WITH EACTS

    Article • Russian Journal of Cardiology, January 2017, Silicea - Poligraf, LLC

    Professor Antonis S Manolis, Professor Tchavdar N Shalganov, Prof HECTOR BUENO, Professor Erkin Mirrakhimov

  48. Evolution of The Electrocardiogram in a Patient with Arrhythmogenic Right Ventricular Cardiomyopathy

    Article • Hellenic Journal of Cardiology, September 2016, Elsevier

    Professor Tchavdar N Shalganov

  49. 2016 ESC Guidelines for the management of atrial fibrillation developed in collaboration with EACTS

    Article • European Heart Journal, August 2016, European Society of Cardiology

    Professor john j mcmurray, Professor Tchavdar N Shalganov, Prof HECTOR BUENO, Professor Antonis S Manolis, Professor Erkin Mirrakhimov

  50. Effect of Vericiguat, a Soluble Guanylate Cyclase Stimulator, on Natriuretic Peptide Levels in Patients With Worsening Chronic Heart Failure and Reduced Ejection Fraction

    Article • JAMA, December 2015, American Medical Association (AMA)

    Professor Tchavdar N Shalganov

  51. 2015 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death

    Article • European Heart Journal, August 2015, European Society of Cardiology

    Professor Tchavdar N Shalganov, Prof HECTOR BUENO, Dr Radoslaw Lenarczyk, Professor Erkin Mirrakhimov

  52. Rationale and design of the SOluble guanylate Cyclase stimulatoR in heArT failurE Studies (SOCRATES)

    Article • European Journal of Heart Failure, July 2014, Wiley

    Professor Tchavdar N Shalganov

  53. The presence of extensive atrial scars hinders the differential diagnosis of focal or macroreentrant atrial tachycardias in patients with complex congenital heart disease

    Article • EP Europace, November 2013, European Society of Cardiology

    Professor Tchavdar N Shalganov

  54. Coexistence of arrhythmogenic right ventricular cardiomyopathy and coronary artery disease in a patient with ventricular tachycardia: a highly unusual combination

    Article • Heart Asia, January 2013, BMJ

    Professor Tchavdar N Shalganov

  55. Inadvertent isolation of a focal tachycardia within the superior vena cava

    Article • World Journal of Cardiovascular Diseases, January 2012, Scientific Research Publishing, Inc,

    Professor Tchavdar N Shalganov

  56. Poster Session 4

    Article • EP Europace, June 2011, European Society of Cardiology

    Professor Tchavdar N Shalganov

  57. Electrogram analysis at the His bundle region and the proximal coronary sinus as a tool to predict left atrial origin of focal atrial tachycardias

    Article • EP Europace, March 2011, European Society of Cardiology

    Professor Tchavdar N Shalganov

  58. Selective slow pathway ablation using transseptal approach in a patient with surgically corrected partial atrioventricular canal defect and atrioventricular nodal reentrant tachycardia of the common type

    Article • EP Europace, January 2010, European Society of Cardiology

    Professor Tchavdar N Shalganov

  59. Percutaneous Coronary Intervention for Acute Myocardial Infarction in a Single Coronary Artery Anomaly

    Article • Clinical Cardiology, November 2009, Wiley

    Professor Tchavdar N Shalganov

  60. ABSTRACTS

    Article • EP Europace, June 2009, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov, Christian Perzanowski

  61. Featured Posters: An overview of cardiac electrophysiology and pacing

    Article • EP Europace, June 2009, European Society of Cardiology

    Professor Tchavdar N Shalganov

  62. Bi-atrial and right atrial activation times help to differentiate focal from macroreentrant right atrial tachycardias

    Article • Acta Cardiologica, February 2009, Peeters Publishers

    Professor Tchavdar N Shalganov

  63. Acceso transeptal a la aurícula izquierda desde la vena femoral izquierda

    Article • Revista Española de Cardiología, September 2008, Elsevier

    Dr Vassil B Traykov, Professor Tchavdar N Shalganov

  64. Transseptal Access to the Left Atrium From the Left Femoral Vein

    Article • Revista Española de Cardiología (English Edition), January 2008, Elsevier

    Dr Vassil B Traykov, Professor Tchavdar N Shalganov

  65. Ice mapping during tachycardia in close proximity to the AV node is safe and offers advantages for transcatheter ablation procedures

    Article • Acta Cardiologica, November 2007, Peeters Publishers

    Professor Tchavdar N Shalganov

  66. Mid-term echocardiographic follow up of left ventricular function with permanent right ventricular pacing in pediatric patients with and without structural heart disease

    Article • Cardiovascular Ultrasound, March 2007, Springer Science + Business Media

    Professor Tchavdar N Shalganov, Dr Attila Kardos

  67. Evolution of left ventricular function in paediatric patients with permanent right ventricular pacing for isolated congenital heart block: a medium term follow-up

    Article • EP Europace, March 2007, European Society of Cardiology

    Professor Tchavdar N Shalganov

  68. A simple algorithm for defining the mechanism and the chamber of origin in atrial tachycardias

    Article • Journal of Electrocardiology, October 2006, Elsevier

    Dr Vassil B Traykov, Professor Tchavdar N Shalganov

  69. Unusual Wenckebach phenomenon due to an atrial tachycardia arising from the apex of Koch’s triangle in the presence of dual AV nodal physiology

    Article • Journal of Interventional Cardiac Electrophysiology, August 2006, Springer Science + Business Media

    Professor Tchavdar N Shalganov

  70. Right diaphragmatic paralysis following endocardial cryothermal ablation of inappropriate sinus tachycardia

    Article • EP Europace, August 2006, European Society of Cardiology

    Professor Tchavdar N Shalganov

  71. P4-109

    Article • Heart Rhythm, May 2006, Elsevier

    Professor Tchavdar N Shalganov

  72. Association for European Paediatric Cardiology, Association Européene pour la Cardiologie Pédiatrique, XL Annual Meeting, 18–21 May, 2005

    Article • Cardiology in the Young, September 2005, Cambridge University Press

    Professor Tchavdar N Shalganov

  73. Evolution of left ventricular function in pediatric patients with permanent right ventricular pacing with and without structural heart disease

    Article • EP Europace, May 2005, European Society of Cardiology

    Professor Tchavdar N Shalganov

  74. Preventing complicated transseptal puncture with intracardiac echocardiography: case report

    Article • Cardiovascular Ultrasound, March 2005, Springer Science + Business Media

    Professor Tchavdar N Shalganov

  75. 685 Ice mapping during tachycardia in close proximity to the AV node is safe and offers advantages for transcatheter ablation procedures

    Article • EP Europace, January 2005, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov

  76. P-086 Short-term and long-term results of radiofrequency catheter ablation for the treatment of tachycardias in children and adolescents

    Article • EP Europace, December 2003, European Society of Cardiology

    Professor Tchavdar N Shalganov

  77. P-086 Short-term and long-term results of radiofrequency catheter ablation for the treatment of tachycardias in children and adolescents

    Article • EP Europace, December 2003, Oxford University Press (OUP)

    Professor Tchavdar N Shalganov

  78. Brief Communications of the International Society of Non-Invasive Cardiology, 19 th European Congress, May 8-10, 2003 - Istanbul, Turkey

    Article • Acta Cardiologica, June 2003, Peeters Publishers

    Professor Tchavdar N Shalganov

  79. ORAL PRESENTATION: ATHIAL FIBRILLATION: PHYSIOLOGICAL AND PATHOPHYSIOLOGICAL FINDINGS

    Article • Pacing and Clinical Electrophysiology, May 1997, Wiley

    Professor Tchavdar N Shalganov