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Ujjwal Chowdhury

Ujjwal Kumar Chowdhury, M.D.

All India Institute of Medical Sciences, Department of Cardiovascular Surgery
Ansari Nagar
New Delhi, DL  110029
India
+919811430865
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Role: 
Surgeon - Cardiothoracic

Background

Professor, Department of Cardiac Surgery, All India Institute of Medical Sciences, New Delhi, 1996 onward;

Senior Cardiac Surgical Fellow, active member, allograft team, special training in implantation of left ventricular assist devices, Prince Charles Hospital, Brisbane, Australia, 1991-93; 

Senior Cardiac Surgical Fellow, Royal Alexandra Hospital for Children, Sydney, 1993-94, Royal Prince Alfred Hospital, Sydney, 1994. 

Trained in robotic cardiac surgery, Intuitive Surgical® Da Vinci Surgical System 

Training Workshop, Sunnyvale, California, 2003. Till date

Contributed 343 original articles and 55 surgical videos to numerous indexed cardiac surgical journals. Fellow Australasian Society of Cardiac and Thoracic Surgeons (Sydney), 

Indian Association of Cardiothoracic Surgeons (New Delhi), 

Indian Association of Cardiovascular and Thoracic Surgeons (Life member), International Member- Society of Thoracic Surgeons (USA), 

Biography Who’s who in Medicine and Health Care, 2009-2010, Iconic Achiever, The International Hippocrates Award for Medical Achievement, Cambridge, England 2010. 

The culmination of Prof. Choudhury’s research activities has been the development of a novel technique of septation of the aorto-pulmonary window using a fenestrated, unidirectional, valved fabric patch, a novel technique of rechanneling of sinus venosus atrial septal defect with partial anomalous pulmonary venous connection, construction of novel techniques of the modified Blalock-Taussig’s shunt, laying down the guidelines for candidate selection for one and one-half ventricular repair and for leaving the vertical vein open in patients with obstructive totally anomalous pulmonary venous connection, development of a novel technique of transfer of anomalous left coronary artery from the pulmonary artery u sing autogenous aortic and pulmonary arterial flaps, development of a novel technique of percutaneous adjustable vertical vein ligature in obstructive totally anomalous pulmonary venous connection, formulation of a new surgical classification of mixed totally anomalous pulmonary venous connection, development of modified button technique for the performance of Bentall’s procedure, laying down the criteria for diagnosis of postoperative Fontan failure by dynamic radionuclide study, the development of a novel technique of anatomic reconstruction of the giant congenital left atrial appendage aneurysm by using a bovine pericardial patch, documentation for the first in the English language literature the indications, technique and results of transposition of left superior vena cava to left pulmonary artery in patients with Raghib’s defect, successful introduction of the indications and techniques of endoatriectomy in patients undergoing surgery for porcelain atrium, formulation of a new surgical classification of iatrogenic coronary sinus injuries during retrograde delivery of cardioplegia, development of a novel technique of radical pericardiectomy for chronic constrictive pericarditis via modified left anterolateral thoracotomy (UKC’s modification), documentation for the first time in the English language literature the effects of abnormal aortic histopathology on aortic remodeling and size evolution after intracardiac repair of tetralogy of Fallot, demonstration of tissue doppler imaging-derived mitral and tricuspid annular velocities as useful investigative modalities for diagnosis of constrictive pericarditis and are non-predictors of postoperative outcome following pericardiectomy for chronic constrictive pericarditis, documentation for the first time in English language literature the effect of abnormal myocardial histopathology on the diastolic compliance of the right ventricle and postoperative peak systolic right-to-left ventricular pressure ratio in patients undergoing intracardiac repair of tetralogy of Fallot, successful introduction of the concept of intra-aortic balloon counterpulsation for systemic ventricular failure following total pericardiectomy for chronic constrictive pericarditis, elucidated for the first time in English language literature on the use of intra-aortic balloon counterpulsation for systemic ventricular failure following Bentall’s procedure for annuloaortic ectasia, severe aortic regurgitation and aortic dissection, successful documentation of the trans-pulmonary balloon occlusion technique under normothermic cardiopulmonary bypass in adult ductus, the giant ductus, the recanalized and calcified ductus, elucidated for the first time in English literature the existence of significant elastic fragmentation muscle disarray, medionecrosis and fibrosis involving the ascending aorta of patients with functionally univentricular heart similar to those encountered in patients with teralogy of Fallot, laid down the guidelines for candidate selection for leaving the vertical vein open in patients with obstructive totally anomalous pulmonary venous connection, development of a new concept of routine enlargement of left atrium in patients undergoing rechanneling of obstructive and non-obstructive supra cardiac total anomalous pulmonary venous connection via a common posterior venous chamber to improve survival, successful introduction of the concept of routine fenestration of the intra-atrial baffle in patients undergoing univentricular type of repairs, documented for the first time in English language literature the relationship of tissue Doppler imaging-derived myocardial velocities to postoperative peak systolic right-to-left ventricular pressure ratio in patients undergoing intracardiac repair of tetralogy of Fallot, laying down the techniques of redo mitral valve replacement following bioprosthetic valve explantation, laying down the guidelines for candidate selection for intraaoartic balloon counterpulsation after primary and redo mitral and/or aortic valve replacements in rheumatic heart disease and development of novel techniques of tumour thrombectomy from inferior vena cava and right atrium in patients with renal cell carcinoma with inferior vena caval and right atrial extension without cardiopulmonary bypass as well as using cardiopulmonary bypass without circulatory arrest. 

Other Interests

Editorial board:

1.             World Journal of Pediatric and Congenital Heart Surgery, USA

2.             Palliative Care: Clinics in Oncology, USA

3.             Cardiothoracic Surgery- Surgery Clinics, USA

4.             Clinics in Surgery, USA

5.             Vascular Surgery: Surgical Clinics Journal, USA

6.             Annals of Surgery Short Reports, USA

7.             Annals of General Surgery, Short Reports, USA

8.             World Journal of Surgery and Surgical Research, USA

9.             Heart Surgery: Surgical Clinics Journal, USA

10.          Medlife Open Access, USA

11.          The Cardiologist, USA

12.          Clinical Case Reports, International: Internal Medicine, USA

13.          Annals of General Surgery, USA

14.          Clinical Case Reports and Reviews, USA

15.          Journal of Heart Failure and Cardiology Research, USA

16.          World Journal of Cardiology, USA

17.          Medlife Open Access : Anesthesia Editorial Board, USA

18.          Journal of Research Notes, USA

19.          Journal of Radiology and Diagnostic Imaging, USA

20.          Metabolites (Open Access Journal), Enpress Publisher, USA

21.          Archives of Pediatrics

22.          Probe- Surgery,Universe Scientific Publishing Pte.Ltd., Singapore

23.          Clinical Case Reports International: Internal Medicine, USA

24.          International Journal of Cardiac and Pulmonary Rehabilitation, USA

25.          CPQ Medicine Editorial Team, Canada

26.          CPQ Cardiology, Canada

27.          Archives of Pediatrics, USA

28.          Atherosclerosis Research and Reviews

29.          Phab Linx Journal of Pathology

30.          Docteqs Journal of Surgery and Research, USA

31.          Annals of Sarcoma Research and Clinical Practice, USA

32.          American Journal of Applied Scientific Research, USA

33.          The General Surgeon Journal, USA

34.          Nova Science Publishers, USA

35.          International Journal of Clinical Cardiology, USA

36.          Open Access Journal of Cardiology (OAJC), USA

37.          Archives of Surgery and Surgical Education, USA

38.          Journal of General Surgery, Australia

39.          Region- Anatomy and Physiology, EnPress Publisher LLC (USA)

40.          Journal of Clinical Cardiology and Cardiovascular Medicine, USA

41.          Journal of Cardiology and Cardiovascular Research, USA

42.          Journal of Cardiology and Diagnostic Research, USA

43.          Archieves of Surgery and Surgical Education, USA

44.          Journal of General Surgery, Australia

45.          Region- Anatomy and Physiology, EnPress Publisher LLC (USA)

46.          Journal of Cardiovascular Disease and Medicine, USA

47.          Journal of Clinical Cardiology and Cardiovascular Medicine, Saudi Arabia

48.          Journal of Cardiology and Cardiovascular Research, USA

49.          Journal of Cardiology and Diagnostic Research, USA

50.          Archieves of Surgery and Surgical Education, USA

51.          Surgical Case Reports

52.          Journal of Integrative Cardiology (Open access)

53.          International Journal of Applied Science and Engineering Review

54.          Cardiology Cases and Systemic Reviews, USA

55.          Insights of Cardiology Open Access, USA

56.          Journal of Cardiovascular Surgery and Heart Diseases, USA

57.          Journal of Cardiology and Diagnostics Research, USA

58.          Journal of International Journal of Cardiovascular and Cerebrovascular Diseases , USA

59.          Journal of Surgical Research and Therapeutic, USA

60.          Journal of Pulmonology and Respiratory Medicine, USA

61.          European Journal of Respiratory Medicine, USA

62.          Surgery Clinics Journal, USA

63.          Open Scientific Journal of Surgery, USA

64.          Journal of Pulmonology and Respiratory Medicine, USA

65.          Journal of Surgical Research and Therapeutics, USA

66.          Annals of Biostatistics and Biometric Applications, USA

67.          Open Journal of Surgery, USA

68.          International Journal of Clinical Case Studies and Reports

69.          International Journal of Clinical Case Studies and Reports, USA

70.          Interdisciplinary Journal of Innovative Surgery (IJIS), USA

71.          MeDread Publishing Group, USA

72.          Vision Science Research Sdn. Bhd, USA

73.          Associative Journal of Health Sciences, USA

74.          Medtext Publications, USA

75.          International Journal of Statistics in Medical Research, Rome, Italy.

76.          Journal of Neonatal Care and Pediatric Research, USA

77.          Madridge Journal of Surgery, USA

78.          International Medicine, USA

79.          Journal of Vascular Medicine and Current Research, USA

80.          Journal of Heart and Cardiology, USA

81.          Nova Science Publication, USA

82.          Journal of Pathology and Toxicology Research, USA

83.          International Journal of Cardiac Science and Research, USA

84.          International Journal of Clinical Medicine Research, USA

85.          Journal of Orthopaedics, USA

86.          Journal of Blood Medicine and Research, USA

87.          Cardiovascular Surgery International, USA

88.          Annals of Operative Surgery, USA

89.          Current Metabolomics, USA

90.          Journal of Cardiac Critical Care, India

91.          Clinical Cardiology and Cardiovascular Interventions

92.          Journal of Surgery and Surgical Technology

93.          Annals of International Case Reports

94.          SF Journal of Medical Oncology and Cancer

95.          Journal of Cardiology and Cardiovascular Research

96.          EC Clinical and Experimental Anatomy

97.          International Journal of Cardiovascular Research

98.          SF Journal of Endocrinology and Thyroid

99.          Archieves of Clinical and Experimental Cardiology

100.       International Journal of Clinical Medicine Research

101.       Clinical Cardiology and Cardiovascular Research

1.             Integrative Preventive Medicine and Community Health

2.             Journal of Cardiovascular Diagnosis and Treatment

3.             Global Anesthesia and Pain Medicine

4.             International Journal of Cardiovascular Research

5.             SM Journal of Pediatric Surgery

6.             SM Emergency Medicine and Critical Care

7.             Open Access Journal of Oncology and Medicine

8.    Heart and Mind

9.    Journal of Anaesthesia and Pain Relief Management

10. EC Clinical and Medical Case Reports

11. Global Ophthalmology and Eye Care

12. Archives of Medical Case Reports and Case Study

13. Cientific Journal of Paediatrics

14. Clinical Research and Anesthesia

15. Edelweiss Pediatrics Journal

16. International Journal of Anesthesiology Research

17. Journal of Endocrinology and Metabolism Research

18. Journal of Surgical Case Reports and Images

19. SF Surgery Case Reports

20. Annals of Pharmacology and Pharmaceutics

21. Journal of Cardiovascular Medicine and Heart Surgery

22.          Global Anesthesia and Pain Medicine

23.          Interdisciplinary Journal of Radiology

24.          Journal of Basic and Applied Sciences

25.          Universal Journal of Radiology and Nuclear Medicine

26.          Surgical Case Reports and Images

27.          Journal of Medical and Advanced Clinical Case Reports

28. Journal of Modern APproaches in Anesthesia and Surgery

29. Journal of Clinical Research and Anesthesia

30. Journal of Approaches in Cardiology and Hematology

31.          Journal of Cardiology and Cardiovascular Sciences

32.          Journal of Surgery and Practice

33.          Journal of Thoracic Disease and Cardiothoracic Surgery

34.          International Journal of Clinical Case Studies and Reports

35.          Journal of Surgical Case Reports and Images

36.          Journal of Thoracic Disease and Cardiothoracic Surgery

37.          ES Journal of Case Reports

Research

1.             Successfully introduced the concept of routine fenestration of the intra-atrial baffle in patients undergoing univentricular type of repairs. Annals of Thoracic Surgery 2000; 69: 1900-1906.

2.             Laid down the guidelines for candidate selection for One and a half ventricular repair: One and a half ventricular repair with pulsatile bidirectional Glenn: results and guidelines for patient selection. Ann Thorac Surg 2001; 71 : 1995-2002

3.             Successfully laid down the criterions for candidate selection for univentricular repair in children under 2 years of age. Heart Lung Circulation 2001; 10: 3-13.

4.             Received invited commentary in: One and a half ventricular repair with pulsatile bidirectional Glenn: results and guidelines for patient selection. Ann Thorac Surg 2001; 71 : 1995-2002 (Invited commentary by Ralph E. Delius, MD).

5.             Developed a new technique of tumor thrombectomy from inferior vena cava in patients with renal cell carcinoma with inferior vena caval extension without cardiopulmonary bypass: Point of Technique: A modified approach for tumour thrombectomy for renal cell carcinoma with supradiaphragmatic extracardiac tumour thrombus. Br J Urol (International) 2001; 88 : 644- 648.

6.             Developed a novel technique of angioplasty of stenosed left pulmonary artery following intra-cardiac repair of tetralogy of Fallot. Heart Lung Circulation 2002; 11: 121-125.

7.             Described a novel technique of viable extracardiac total cavopulmonary connection. Heart, Lung and Circulation 2004; 13: 56-63.

8.             Received invited commentary in: Viable extracardiac total cavopulmonary connection : early and mid-term results. Heart, Lung and Circulation 2004; 13: 56-63 (invited commentary by Mr. Andrew Cochrane, FRACS).

9.             Laid down a new criterion for diagnosis of postoperative Fontan failure by dynamic radionuclide studies. Annals of Thoracic Surgery 2004; 78: 658-665.

10.          Received invited commentary in: Histopathology and morphometry of the radial artery : Basic study and clinical application. Ann Thorac Surg 2004; 78 : 1614-22 (invited commentary by Stephen M. Wildhart, MD, Ph.D).

11.          Laid down the guidelines for candidate selection of late presenters with univentricular physiology and pulmonary hypertension with pulmonary artery band as the final operation. Surgical outcome of staged univentricular-type repairs for patients with univentricular physiology and pulmonary hypertension. Indian Heart J 2004; 56: 320-27.

12.          Objectively demonstrated the importance of chordal preservation in patients undergoing mitral valve replacement by echocardiography, radionuclide angiocardiography and magnetic resonance imaging. Am Heart J, 2006; 152: 1201-1207. Ann Thorac Surg 2005; 79 : 1926-33.

13.          Documented for the first time in the English language literature that one and one-half ventricular repair maintains low pressure in the IVC compartment, reverses the “Fontan Paradox” with no consequences of Pulsatile Glenn. One and one-half ventricular repair : results and concerns. Ann Thorac Surg 2005; 80: 2293-2300.

14.          Received invited commentary in: Specific issues after extracardiac Fontan operation at mid-term follow up. Systemic ventricular function, Growth potential, Arrhythmia and Thromboembolism. Ann Thorac Surg 2005; 80 : 665-72 (invited commentary by Marshall Jacobs, MD).

15.          Validated the diagnostic accuracy of magnetic resonance imaging in evaluating biventricular ejection fraction and quantified pulmonary regurgitant fraction in patients undergoing intracardiac repair for tetralogy of Fallot. Non-invasive assessment of repaired tetralogy of Fallot by magnetic resonance imaging and dynamic radionuclide studies. Ann Thorac Surg, 2006; 81: 1436-42 (selected for Journal CME).

16.          Invited to contribute to the Journal CME programme for Annals of Thoracic Surgery: Non-invasive assessment of repaired tetralogy of Fallot by magnetic resonance imaging and dynamic radionuclide studies. Ann Thorac Surg, 2006; 81: 1436-42 (selected for Journal CME).

17.          Developed novel techniques for construction of the modified Blalock-Taussig’s shunt and laid down criterions for candidate selection of the same operation: Criterions for selection of patients for, and results of a new technique for construction of the modified Blalock-Taussig shunt. Cardiology in the Young 2006; 16: 1-11.

18.          Received invited commentary in: Pericardiectomy for constrictive pericarditis: A Clinical, Echocardiographic, and Hemodynamic Evaluation of Two surgical techniques. Ann Thorac Surg 2006; 81: 522-530 (invited commentary by Joseph W. Rubin, MD, CM).

19.          Documented the existence of histopathological abnormalities of the right ventricular outflow tract and their relationship to clinical outcomes and arrhythmias in patients with tetralogy of Fallot. J Thorac Cardiovasc Surg 2006; 132: 270-277.

20.          Invited to contribute to the Journal CME programme for Annals of Thoracic Surgery: Non-invasive assessment of repaired tetralogy of Fallot by magnetic resonance imaging and dynamic radionuclide studies. Ann Thorac Surg, 2006; 81: 1436-42 (selected for Journal CME).

21.          Laid down the guidelines for candidate selection for leaving the vertical vein open in patients with obstructive totally anomalous pulmonary venous connection. Invited to contribute to the journal CME programme for J Thorac Cardiovasc Surg: Rechaneling of totally anomalous pulmonary venous connection with or without vertical vein ligation: Results and guidelines for candidate selection. J Thorac Cardiovasc Surg, 2007; 133: 286-294 (Selected for Journal CME).

22.          Cited as one of the best journal CME article by Andrew Wechsler, Editor-in-chief, The Journal of Thoracic and Cardiovascular Surgery, 2007. 

23.          The vertical vein : To ligate or not to ligate. Editorial by James S. Tweddell MD on Rechaneling of totally anomalous pulmonary venous connection with or without vertical vein ligation: Results and guidelines for candidate selection. J Thorac Cardiovasc Surg, 2007; 133: 1135-1136.

24.          Developed a novel technique of percutaenous adjustable vertical vein ligature in obstructive totally anomalous pulmonary venous connection: A novel technique for percutaneously adjustable vertical vein ligature for obstructive totally anomalous pulmonary venous connection. Cardiology in the Young, 2007; 17: 380-386.

25.          Received an editorial by James S. Tweddell, MD, on “Rechaneling of totally anomalous pulmonary venous connection with or without vertical vein ligation: Results and guidelines for candidate selection”. J Thorac Cardiovasc Surg 2007; 133: 1135-1136.

26.          Developed novel techniques of tumour thrombectomy from IVC, right atrium, right ventricle using cardiopulmonary bypass, mild hypothermia and intermittent descending aortic cross-clamping: Novel techniques for tumour thrombectomy for renal cell carcinoma with intra-atrial tumour thrombus. Ann Thorac Surg, 2007; 83: 1731-1736.

27.          Formulated a new surgical classification of mixed total anomalous pulmonary venous connection with guidance from Prof. Robert H. Anderson: A suggested new surgical classification for mixed totally anomalous pulmonary venous connection. Cardiol Young 2007; 17: 342-353 (with guidance from Prof. Robert H. Anderson, B. Sc., MD, MRC Path).

28.          Successfully introduced the concept of intra-aortic balloon counter- pulsation in patients with a failing Fontan. Intra-aortic balloon counter-pulsation in failing Fontan : A case report. Accepted for publication in Cardiology in the Young, 2007;17:102-104.

29.          Developed a new concept of routine enlargement of left atrium in patients undergoing rechaneling of obstructive and non-obstructive supra cardiac total anomalous pulmonary venous connection via a common posterior venous chamber to improve survival. Rechaneling of totally anomalous pulmonary venous connection with or without vertical vein ligation: Results and guidelines for candidate selection. J Thorac Cardiovasc Surg, 2007; 133: 286-294 (Selected for Journal CME).

30.          Documented for the first time in the English language literature the existence of ‘Exonic DNA Variants’ involving the fibrillin-1 gene in one or more exons (exon 24-28) in patients with tetralogy of Fallot. The ‘DNA sequence variants’ are more pronounced in patients with tetralogy of Fallot and dilated aorta in the presence of abnormal aortic histopathology Role of fibrillin-1 genetic shifts and polymorphism in aortic dilatation in patients undergoing intracardiac repair of tetralogy of Fallot. J Thorac Cardiovasc Surg, 2008;136:757-766.

31.          Documented the existence of abnormal aortic histopathology and identified the risk factors related to histopathological condition and aortic dilatation in patients with tetralogy of Fallot.Histopathological changes in ascending aorta and the risk factors related to histopathological conditions and aortic dilatation in patients with tetralogy of Fallot. J Thorac Cardiovasc Surg 2008; 135: 69-77.

32.          Developed a novel technique of transfer of anomalous left coronary artery from the pulmonary artery in children and adults using autogenous aortic and pulmonary arterial flaps: A novel technique of transfer of anomalous left coronary artery from the pulmonary artery in children and adults using autogenous aortic and pulmonary arterial flaps. Cardiol Young 2008; 18: 1-12 (with guidance from Prof. Robert H. Anderson, B. Sc., MD, MRC Path).

33.          Awarded the best paper entitled “Relationship between internal jugular venous oxygen saturation and pump flow rates in children and adults undergoing corrective cardiac surgery under cardiopulmonary bypass” for original research by Indian Society of Extracorporeal Technology Conference, 2008 (Chief Investigator). Presented by Miss. Ritu Airan, Perfusionist and received a Gold Medal.

34.          Invited to contribute a chapter on pericardiectomy via left anterolateral thoracotomy by Frederick Crawford, MD, Editor in Operative techniques in Thoracic and Cardiovascular Surgery 2008; 13: 14-25. 

35.          Established the diagnostic discrimination limits and optimal cut-off values of different cardiac biomarkers (heat stable-c-reactive protein, cardiac troponin-I, h-fatty acid binding protein, creatinine kinase-MB, myoglobin) for evaluating the degree of perioperative myocardial injury after surgical revascularization with or without cardiopulmonary bypass J Thorac Cardiovasc Surgery 2008; 135: 1110-1119.

36.          Developed a novel technique of radical pericardiectomy via left anterolateral thoracotomy. Invited chapter in Operative techniques in Thoracic and Cardiovascular Surgery 2008; 13: 14-25. Editor. Frederick Crawford, MD.

37.          Documented the histopathological changes in central pulmonary arteries and identified the risk factors related to histopathological conditions and inadequate pulmonary artery growth in patients with cyanotic congenital heart diseases. Central pulmonary artery histopathology in patients with cyanotic congenital heart diseases. Ann Thorac Surg 2009;87:589-96.

38.          Received invited commentary in: Central Pulmonary Artery Histopahology in Patients with Cyanotic Congenital Heart Diseases. Central pulmonary artery histopathology in patients with cyanotic congenital heart diseases. Ann Thorac Surg 2009; 87: 589-596 (invited commentary by Tom Karl, MD).

39.          Developed a novel technique of septation of the aortopulmonary window using a fenestrated, unidirectional, valved fabric patch. An alternative technique for septation of the aorto-pulmonary window using a fenestrated, undirectional valved fabric patch. J Thorac Cardiovasc Surg 2009;138:1433-1435.

40.          Elucidated the relationship between internal jugular venous oxygen saturation and perfusion flow rate in children and adults during normothermic and hypothermic bypass and proved that patients undergoing normothermic CPB are at greater risk of cerebral desaturation. The cyanotics are at greater risk compared with acyanotics during normothermic CPB and during the rewarming phase of hypothermic CPB and require an individualized increased perfusion flow rate. Relationship between internal jugular venous oxygen saturation and pump flow rates in children and adults undergoing corrective cardiac surgery under cardiopulmonary bypass. Hellenic Journal of Cardiol, 2010; 51: 310-322.

41.          Elucidated for the first time in English literature that patients undergoing normothermic CPB are at greater risk of cerebral desaturation. The cyanotics are at greater risk compared with acyanotics during normothermic CPB and during rewarming and require an individualized increased perfusion flow rate disproportionate to the calculated requirements.  Hellinic J Cardiol 2010; 51: 310-322.

42.          Elucidated for the first time in English literature that patients undergoing normothermic CPB are at greater risk of cerebral desaturation. The cyanotics are at greater risk compared with acyanotics during normothermic CPB and during rewarming and require an individualized increased perfusion flow rate disproportionate to the calculated requirements.  Hellinic J Cardiol 2010; 51: 310-322.

43.          Developed a novel technique for rechaneling of sinus venosus atrial septal defect with partial anomalous pulmonary venous connection using autogenous right atrial appendage. An alternative technique for rechanneling of sinus venosus atrial septal defect with partial anomalous pulmonary venous connection using autogenous right atrial appendage. World J Pediatric and Congenital Heart Surgery 2010; 2(2): 231-236.

44.          Elucidated the histomorphometry of the intra-pulmonary vessels in patients undergoing univentricular type of repairs and documented the pulmonary histomorphometric characteristics that predispose patients to postoperative Fontan failure. Histomorphometric analysis of intrapulmonary vessels in patients undergoing bi-directional glenn and total cavopulmonary connection. J Thorac Cardiovasc Surg 2010; 140: 1251-1256.

45.          Elucidated for the first time in the English language literature the effects of abnormal aortic histopathology on aortic remodeling and size evolution after intracardiac repair of tetralogy of Fallot. Histologic Abnormalities of the Ascending Aorta and Its Effect on Aortic Remodeling and Size Evolution after Intracardiac Repair of tetralogy of Fallot. Texas Heart Institute Journal, 2019.

46.          Successfully introduced the concept of intra-aortic balloon counter pulsation in patients with failing intracardiac repair of tetralogy of Fallot. Successful use of intra aortic balloon counter pulsation in an adult patient with left ventricular failure following repair of tetralogy of Fallot: A Case Report. World J Pediatric & Congenital Heart Surgery, 2011; 2(3): 517-519.

47.          Developed an alternative technique of cannulation of the left superior caval vein by dislocating the heart into the right thoracic cavity. An alternative technique of cannulation of the left superior caval vein by dislocating the heart into the right thoracic cavity. World J Pediatric & Congenital Heart Surgery, 2011; 2(3): 371-374.

48.          Developed a novel technique of radical pericardiectomy for chronic constrictive pericarditis via modified left anterolateral thoracotomy (UKC’s modification). Indications, Timing and Techniques of Radical Pericardiectomy via Modified Left Anterolateral Thoraocotomy (UKC’s modification) and Total Pericardiectomy via Median Sternotomy (Holman and Willett) without Cardiopulmonary BypassJ Practice of Cardiovascular Sciences 2016; 2: 17-27.

49.          Elucidated for the first time in English literature the comparative release pattern, the diagnostic discrimination limits and optimal cutoff values of CS-derived cardiac biomarkers, namely, serum pyruvate, lactate, LPR, CK-MB and cTn-I for evaluating myocardial injury after cardiac surgery using cardiopulmonary bypass and cardioplegic arrest. Annals of Cardiac Anaesthesia 2016; 19: 439-53.

50.          Developed a novel technique of coronary button implantation in patients with undergoing Bentall’s operation. An alternative technique of coronary button implantation in patients undergoing Bentall’s procedure. Journal of Cardiac Critical Care 2017; 1: 51-54.

51.          Elucidated for the first time in the English language literature the existence of abnormal aortic histopathology in patients with a functionally univentricular heart similar those of tetralogy of Fallot. A Comparative Study of Histopathological Changes In Ascending Aorta And The Risk Factors Related To Histopathological Conditions And Aortic Dilatation In Patients With Tetralogy Of Fallot And A Functionally Univentricular Heart. Heart, Lung and Circulation 2018; 27: 1004-1110 (available online).

52.          Successfully introduced the concept of surgical osteoplasty of the left main coronary artery with concomitant mitral valve replacement and tricuspid annuloplasty. Successful Surgical Ostioplasty of the Left Main Coronary Artery with Concomitant Mitral Valve Replacement and Tricuspid Annuloplasty. Annals of Cardiac Anaesthesia 2017; 20(2): 262-264.

53.          Objectively demonstrated that tissue doppler imaging-derived mitral and tricuspid annular velocities are useful investigative modality for diagnosis of constrictive pericarditis and are non-predictors of postoperative outcome following pericardiectomy for chronic constrictive pericarditis. Tissue Doppler imaging-derived mitral and tricuspid annular velocities: Non-predictors of operative outcome in patients undergoing pericardiectomy for chronic constrictive pericarditis. Journal of Cardiology and Diagnostics Research 2019; 2(2): 67-83.

54.          Documented for the first time in English language literature the effect of abnormal myocardial histopathology on the diastolic compliance of the right ventricular and postoperative peak systolic right-to-left ventricular pressure ratio in patients undergoing intracardiac repair of tetralogy of Fallot. Published in J Thorac Cardiovasc Surg, 2019 (available online).

55.          Documented the effect of abnormal aortic histopathology on aortic remodeling and size evolution after intra-cardiac repair of tetralogy of Fallot. Texas Heart Institute Journal, 2019.

56.          Successfully introduced the concept of intra-aortic balloon counterpulsation for systemic ventricular failure following total pericardiectomy for chronic constrictive pericarditis. World Journal of Pediatric and Congenital Heart Surgery, 2018; 1-4 (available online).

57.          Successfully laid down the criterions for candidate selection for intra-aortic balloon counterpulsation in patients undergoing primary and redo mitral and/or aortic valve replacements. Intra-aortic Balloon Counterpulsation after Primary and Redo Isolated Valve Replacements: Results and Guidelines for Candidate Selection. Open Access Journal of Cardiology, 2019; 3(1):. Doi.10.23880/oajc-16000141.

58.          Developed a novel technique of closure of adult calcified patent ductus arteriosus via transpulmonary approach. Annals of Short Reports, 2018; 1: 1028.

 

59.          Documented for the first in the English language literature the indications, technique and results of transposition of left superior vena cava to left pulmonary artery in patients with Raghib’s defect. Left superior cavopulmonary anastomosis in Raghib’s Defect: Report of 5 Cases and Review of Literature. World Journal of Pediatric and Congenital Heart Surgery, 2018 (In press), doi:10.1177/2/50/35118822699.

60.          Successfully introduced the indications and techniques of endoatriectomy in patients undergoing surgery for porcelain atrium. Giant Porcelain Left Atrium with a Large Neo-vascularized Intracavitary Thrombus in a patient with Rheumatic Mitral Stenosis. Accepted for publication in Annals of Short Reports, 2018; 1: 1026.

61.          Formulated a new surgical classification of iatrogenic coronary sinus injuries during retrograde delivery of cardioplegia. Iatrogenic Injuries during Retrograde Delivery of Cardioplegia- Prevention, Diagnosis and Management: A Collective Review. Open Access Journal of Cardiology 2019; 3(1): 1-11. doi.10.23880/oajc-16000142.

62.          Developed a novel technique of radical pericardiectomy for chronic constrictive pericarditis via modified left anterolateral thoracotomy (UKC’s modification). Pericardiectomy for chronic constrictive pericarditis: Where are we after 100 years. World Journal of Surgery and Surgical Research 2018; 1; 1027-1030 (Invited article from Emily Blunt, Editor, World Journal of Surgery and Surgical Research).

63.          Elucidated for the first time in the English language literature of the effects of abnormal aortic histopathology on aortic remodeling and size evolution after intracardiac repair of tetralogy of Fallot. Histologic Abnormalities of the Ascending Aorta and Its Effect on Aortic Remodeling after Intracardiac Repair of Tetralogy of Fallot. Accepted for publication in Texas Heart Institute Journal, 2019.

64.          Objectively demonstrated that tissue doppler imaging-derived mitral and tricuspid annular velocities are useful investigative modalities for diagnosis of constrictive pericarditis and are non-predictors of postoperative outcome following pericardiectomy for chronic constrictive pericarditis. Tissue Doppler imaging-derived mitral and tricuspid annular velocities: Non-predictors of operative outcome in patients undergoing pericardiectomy for chronic constrictive pericarditis. Journal of Cardiology and Diagnostic Research 2019; 2(2): 67-83. 

65.          Documented for the first time in English language literature the relationship of tissue Doppler imaging-derived myocardial velocities to postoperative peak systolic right to left ventricular pressure ratio in patients undergoing intracardiac repair of tetralogy of Fallot. Relationship of tissue Doppler-derived myocardial velocities to peak systolic right-to-left ventricular pressure ratio in repaired tetralogy of Fallot. Journal of Archives of Pediatrics 2018; Issue 02: JPED 156.

66.          Successfully introduced the concept of intra-aortic balloon counterpulsation for systemic ventricular failure following total pericardiectomy for chronic constrictive pericarditis. Successful Use of Intra-aortic Balloon Counterpulsation for Systemic Ventricular Failure Following Total Pericardiectomy for Calcific Chronic Constrictive Pericarditis. World Journal for Pediatric and Congenital Heart Surgery, 2018; 1-4 [In press].

67.          Elucidated for the first time in English language literature on the use of intra-aortic balloon counterpulsation for systemic ventricular failure following Bentall’s procedure for annuloaortic ectasia, severe aortic regurgitation and aortic dissection. Intra-aortic Balloon Counterpulsation Following Bentall’s Procedure for Annuloaortic Ectasia. Annals of Short Reports 2018; 1: 1023.

68.          Successfully documented the trans-pulmonary balloon occlusion technique under Normothermic Cardiopulmonary Bypass in Adult Ductus, the Giant Ductus, the Recanalized and Calcified Ductus. Surgical Management of the Adult Ductus, the Giant Ductus, the Recanalized and Calcified Ductus using Normothermic Cardiopulmonary Bypass without Circulatory Arrest: Review of 20 years’ experience. Accepted for publication in Annals of Short Reports, 2018; 1: 1028.

69.          Elucidated for the first time in English Literature the existence of significant elastic fragmentation muscle disarray, medionecrosis and fibrosis involving the ascending aorta of patients with functionally univentricular heart similar to those encountered in patients with teralogy of Fallot. Heart lung and circulation 2018; 1: 1028.

70.          Laid down the guidelines for candidate selection for leaving the vertical vein open in patients with obstructive totally anomalous pulmonary venous connection. Invited to contribute a chapter by Rene Brinley, Editor in Clinical Care Report International, 2018. The Vertical Vein in Patients with Obstructive Supracardiac Totally Anomalous Pulmonary Venous Connection: We can ligate it but should we ligate it. Clinical Case Reports International: Internal Medicine Journal, 2018 (Invited article) (Rene Brinley, Editor, Clinical Case Reports International 2018; 2: 1066.

71.          Developed a novel technique of percutaneously adjustable vertical vein ligature in obstructive totally anomalous pulmonary venous connection: Operative, Echocardiographic and Angiocardiographic Details of the Vertical Vein in Repaired Supracardiac Obstructive Totally Anomalous Pulmonary Venous Connection: Pre- and Post-Adjustable Vertical Vein Ligature. Annals of Short Reports 2018; 1: 1022.

72.          Developed a new concept of routine enlargement of left atrium in patients undergoing rechanneling of obstructive and non-obstructive supra cardiac total anomalous pulmonary venous connection via a common posterior venous chamber to improve survival. The unligated vertical vein in Patients with Obstructive Supracardiac Totally Anomalous Pulmonary Venous Connection:  Concept, Concerns and Future Directions. Accept for publication in the journal of Cardiology and Diagnostic Research, 2019; 2(2): 94-108.

73.          Successfully introduced the concept of routine fenestration of the intra-atrial baffle in patients undergoing univentricular type of repairs. The unligated vertical vein in Patients with Obstructive Supracardiac Totally Anomalous Pulmonary Venous Connection:  Concept, Concerns and Future Directions. Accept for publication in the journal of Cardiology and Diagnostic Research, 2019; 2(2): 94-108.

74.          Developed a novel technique of anatomic reconstruction of the giant congenital left atrial appendage aneurysm by using a bovine pericardial patch. A Novel Technique of Repair of Congenital Left Atrial Aneurysm using Bovine Pericardial Patch. Journal Integrative Cardiology, 2019; 1(1): 2-7 doi:10.31487/j.JICOA.2018.01.05.

75.          Invited to contribute a book chapter on pericardiectomy for chronic constrictive pericarditis by Cardiological Society of India, 2018. Surgery for Chronic Constrictive Pericarditis, Tuberculous Pericarditis and Effusive-Constrictive Pericarditis. Essentials of Postgraduate Cardiology, Evangel Publishers, Cardiological Society of India, Invited Chapter 64, pages 1-10.

76.          Documented for the first time in English language literature the effect of abnormal myocardial histopathology on the diastolic compliance of the right ventricle and postoperative peak systolic right-to-left ventricular pressure ratio in patients undergoing intracardiac repair of tetralogy of Fallot. Histopathology of the Right Ventricular Outflow Tract and the relation to hemodynamics in patients with Repaired Tetralogy of Fallot. Accepted for publication in Journal of Thoracic and Cardiovascular Surgery, 2019 (Available online). doi: https://doi.org/10.1016/j.jtcvs.2019.05.013

77.          Received invited commentary “Tetralogy of Fallot under the Microscope” from Dr. Pierre-Luc Bernier, MD, CM, MPH, FRCSC, McGill University, USA for the paper entitled “Histopathology of the Right Ventricular Outflow Tract and the relation to hemodynamics in patients with Repaired Tetralogy of Fallot”. Accepted for publication in Journal of Thoracic and Cardiovascular Surgery, 2019 (Available online). doi: https://doi.org/10.1016/j.jtcvs.2019.05.013

78.          Elucidated for the first time in English Literature the existence of significant elastic fragmentation muscle disarray, medionecrosis and fibrosis involving the ascending aorta of patients with functionally univentricular heart similar to those encountered in patients with tetralogy of Fallot. A Comparative Study of Histopathological Changes In Ascending Aorta And The Risk Factors Related To Histopathological Conditions And Aortic Dilatation In Patients With Tetralogy Of Fallot And A Functionally Univentricular Heart. Heart, Lung and Circulation (2018) 27, 1004–1010.

79.          Laid down the techniques of redo mitral valve replacement following bioprosthetic valve explantation. Mitral Valve Replacement Using Carpentier-Edwards Pericardial Bioprosthesis in Patients with Rheumatic Heart Disease Aged below 40 Years: 17-year Results. Heart, Lung and Circulation 2018; 27: 864-871.

80.          Received an editorial from Journal of Cardiothoracic and Vascular Anesthesia, 2018. Bivalirudin for anticoagulation during cardiopulmonary bypass in children with congenital heart disease: Are we ready yet?. Journal of Cardiothoracic and Vascular Anesthesia 2018; 32: 2641-2643.

81.          Documented for the first time in English language literature the effect of “Integrated myocardial protection” using intermittent antegrade cold blood cardioplegia and retrograde continuous cold blood cardioplegia in patients undergoing Bentall’s procedure.  Intermittent Antegrade and Continuous Retrograde Coronary Sinus Cold Blood Cardioplegia to Prevent and Reverse Ischemic and Reperfusion Damage in Patients Undergoing Bentall’s Procedure: A Clinical Report on 130 Patients. International Journal of Clinical Case Studies & Reports. IJCCSR 2019; 1(2): 23-32

82.          Laid down the guidelines for sizing of the bypass graft for interposition between the ascending aorta and ventral aorta in complex coarctation, recoarctation and aortic arch obstruction in adults. Ascending-to-supraceliac abdominal aortic bypass for complex coarctation, recoarctation and aortic arch obstruction in adults: A 20-year postoperative appraisal. Ann Short Reports 2018; 1: 1024. 

83.          Laid down the guidelines for candidate selection for intraaortic balloon counterpulsation after primary and redo mitral and/or aortic valve replacements in rheumatic heart disease. Intra-aortic Balloon Counterpulsation after Primary and Redo Mitral and/or Aortic Valve Replacements in Rheumatic Heart Disease: Results and Guidelines for Candidate Selection. Open Access Journal of Cardiology, 2019; 31(1), doi.10.23880/oajc-16000141.

84.          Successfully introduced the concept of Bentall’s procedure in an adult patient with repaired TOF with aortic valve reconstruction secondary to intrinsic aortopathy. Redo Bentall’s Procedure for Annuloaortic Ectasia and Severe Aortic Regurgitation in a Patient with Repaired Tetralogy of Fallot and Aortic Valvular Reconstruction. World Journal of Pediatric and Congenital Heart Diseases, 2019 (In press, available online).

85.          Ammended the surgical classification of left ventricular rupture following mitral valve replacement in patients with rheumatic heart disease (introduced type 4 left ventricular rupture).A Treatise on the Surgical management and a suggested amendment of surgical classification of left ventricular rupture following mitral valve replacement.  doi.org/10.31487/j.JICOA.2019.03.01.

86.          Received an invited commentary from the Journal of Thoracic and Cardiovascular Surgery, 2019.“Tetralogy of Fallot under the Microscope” from Dr. Pierre-Luc Bernier, MD, CM, MPH, FRCSC, McGill University, USA for the paper entitled “Histopathology of the Right Ventricular Outflow Tract and the relationship to hemodynamics in patients with Repaired Tetralogy of Fallot”. Accepted for publication in Journal of Thoracic and Cardiovascular Surgery,2019 (Available online). doi: https://doi.org/10.1016/j.jtcvs.2019.05.013

Practice Areas

  • Cardiac
  • Congenital
  • Vascular
  • Cardiac
  • Heart failure
  • Pericardium
  • Valve disease
  • Single ventricle and palliative procedures