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CURRICULUM VITAE

Kulwinder S. Dua MD
Professor
Department of Medicine
Division of Gastroenterology

OFFICE ADDRESS:
Froedtert East Clinics
9200 W Wisconsin Ave
Milwaukee, WI 53226

CITIZENSHIP:  USA

EDUCATION:
1969 - 1971 All India Higher Secondary Education, Delhi, India
1971 - 1972 BS I (pre-medical), Nagpur, India
1972 - 1976 MD, Nagpur, India, India

POSTGRADUATE TRAINING AND FELLOWSHIP APPOINTMENTS:
1976 - 1977 Rotating Internship, Obstetrics and Gynecology and Rural MedicineMedicine, Internal Medicine, Surgery, Nagpur University, India,
1978 - 1979 Resident House Officer, Internal Medicine, Nagpur University, India,
1979 - 1981 Registrar, Internal Medicine, Nagpur University, India,
1981 - 1982 Senior House Officer, Internal Medicine and Psychiatry, Royal Northern Infirmary and Cherry Knowle Hospital, United Kingdom,
1982 - 1983 Senior House Officer, Internal Medicine, Aberdeen University and Humberside University, United Kingdom,
1983 - 1984 Registrar, Internal Medicine, Aberdeen University, United Kingdom,
1984 - 1987 Specialty Registrar, Internal Medicine/Gastroenterology, Aberdeen University, United Kingdom,
1989 Advanced therapeutic E.R.C.P., Academic Medical Center, Amsterdam, Holland ,
1992 Advanced therapeutic E.R.C.P., Fujigaoka Showa University, Yokohama, Japan ,

FACULTY APPOINTMENTS:
1981 Lecturer, Internal Medicine, Nagpur University, India,
1984 - 1987 Tutor, Medicine/Gastroenterology, Aberdeen University, United Kingdom,
1987 - 1992 Senior Specialist, Medicine/Gastroenterology, Ministry of Health, Sultanate of Oman,
1992 - 1994 Instructor, Medicine/Gastroenterology, Medical College of Wisconsin, Milwaukee, WI
1994 - 1999 Assistant Professor, Medicine/Gastroenterology, Medical College of Wisconsin, Milwaukee, WI
1999 - 2007 Associate Professor , Medicine/Gastroenterology, Medical College of Wisconsin, Milwaukee, WI
2007 - Present Professor of Medicine, Gastroenterology, , Medical College of Wisconsin, Milwaukee, WI

ADMINISTRATIVE APPOINTMENTS:
1997 - 2001 Procedure and Conscious Sedation Committee, Zablocki V.A. Medical Center, Milwaukee, WI
7/1998 - 6/1999 Interim Chief, Division of Gastroenterology and Hepatology, Zablocki V.A. Medical Center, Milwaukee, WI
7/1999 - Present Chief, Division of Gastroenterology and Hepatology, Zablocki V.A. Medical Center, 5000 W. National Ave, Milwaukee, WI 53295
1999 - Present Director, Diagnostic and Therapeutic Endoscopy, Medical College of Wisconsin, Froedtert Memorial Lutheran Hospital, Milwaukee, WI
1999 - Present Research and Development Committee, Zablocki V.A. Medical Center, Milwaukee, WI
1999 - Present Director, Pancreatico-biliary Center, Digestive Disease Center, Medical College of Wisconsin, Milwaukee, WI
2004 - Present Co-Director, Diagnostic and Therapeutic Endoscopy, Medical College of Wisconsin, Froedtert Memorial Lutheran Hospital, Milwaukee, WI
2004 - Present Editorial Board, Gastrointestinal Endoscopy,
2004 - 2007 IRB Committee, Medical College of Wisconsin, Milwaukee, WI
2007 - 2011 Training Committee, American Society of Gastrointestinal Endoscopy,
2008 Director, First-year GI Fellow Training Course, Midwest region, American Society of Gastrointestinal Endoscopy,
2009 Associate Director, Gastroenterology Fellowship Program, Medical College of Wisconsin, Milwaukee, WI
2009 International Advisory Board, Journal of Digestive Endoscopy,
2009 - Present Director of Advanced Therapeutic Endoscopy Fellowship, Medical College of Wisconsin, Milwaukee, WI
2010 - Present Councilor, International Dysphagia Research Society,
2010 Director, First-year GI Fellow Endoscopy Course, Midwest region, American Society of Gastrointestinal Endoscopy,
2011 Committee Chair, Esophageal Strictures/Fistula, Leaks and Perforations, World Congress on Diseases of the Esophagus, Como, Italy,
2011 Associate Editor, Dysphagia,
2104 - 2015 President, Dysphagia Research Society,

HOSPITAL AND CLINICAL ADMINISTRATIVE APPOINTMENTS:
1981 Attending Staff, Medical College and Hospital, Nagpur, India,
1987 - 1992 Senior Specialist, Gastroenterology, Royal Hospital, Muscat, Sultanate of Oman,
1992 - Present Faculty, Zablocki VA Medical Center, Milwaukee, WI
1992 - Present Faculty, Froedtert Memorial Lutheran Hospital, Milwaukee, WI
8/2002 - Present Faculty, Children’s Hospital of Wisconsin, Milwaukee, WI

HOSPITAL STAFF PRIVILEGES:
1992 - Present Zablocki V. A. Medical Center, 5000 W. National Ave, Milwaukee, WI 53295
1992 - Present Froedtert Memorial Lutheran Hospital, 9200 W. Wisconsin Ave, Milwaukee, WI 53226
2002 - Present Children’s Hospital of Wisconsin, 9000 W. Wisconsin Ave, Milwaukee, WI 53226

SPECIALTY BOARDS AND CERTIFICATION:
Board Certified
Issue DateExpiration
Royal College of Physicians, Internal Medicine, United Kingdom
1987
1987
DNB Diplomate of the National Board in Gastroenterology, India
1988
1988
American Board of Internal Medicine
1996
None
ABIM – Gastroenterology
2007
None
 
Certificates
Issued By Issue DateExpiration
ACLS
AHA
3/1997
6/2013
 
Licensure
Number Issue DateExpiration
India
1980
None
United Kingdom
1984
None
Wisconsin License
9/24/1992
10/31/2011
Michigan License
9/19/2002
1/31/2012
 
AWARDS AND HONORS:
1971 National Science Talent Search Award
1972 Dr. C.V. Raman Science Award
1972 President of India Award, Invention Promotion Board
1977 Prince of Wales Research Award
1977 M.P. Ophthalmic Surgeon Award
1986 Academy of Medical Science Award
1994 Academy of Medical Science Award
1995 B.J. Vakil Memorial Gold Medal, Society of Gastrointestinal Endoscopy of India
1999 Magna Cum Laude award, Radiology Society of North America
1999 Poster of Distinction , Dua Anti-reflux Esophageal Stent
2001 Patient Safety, Quality and Performance Improvement, Clement J. Zablocki Veterans Affairs Medical Center
2001 AdQ Award, Cook Medicals
2001 Poster of Distinction, American Gastroenterology Association
2001 Poona Oration Gold Medal, Society of Gastrointestinal Endoscopy of India
2001 Clinical Scholar, Medical College of Wisconsin
2001 Teaching Award, American Academy of Family Physicians
2002 - Present America’s Best Doctors
2004 Master of Endoscopy, American Society of Gastrointestinal Endoscopy
2005 U.S. Patent Medal for the Anti-reflux Valve

MEMBERSHIPS IN HONORARY AND PROFESSIONAL SOCIETIES:
1984 Royal College of Physicians of Edinburgh (Member )
1984 Royal College of Physicians of London (Member)
1988 Indian Society of Gastroenterology (Member)
1988 Indian Medical Association (Member)
1990 Indian Academy of Medical Specialists (Gastroenterology) (Fellow)
1992 Japan Gastroenterological Endoscopy Society (Member)
1993 American Society for Gastrointestinal Endoscopy (Member)
1993 American College of Gastroenterology (Member)
1993 American Gastroenterological Association (Member )
1994 Dysphagia Research Society (Member)
1995 Midwest Pancreatico-biliary Club (Member )
1995 Milwaukee Gastroenterological Society (Member)
1996 Midwest Gut Club (Member )
1998 Royal College of Physicians of Edinburgh, U.K. (Fellow)
1998 American College of Physicians (Fellow)
2004 Royal College of Physicians of London, U.K. (Fellow)

RESEARCH GRANTS/AWARDS/CONTRACTS/PROJECTS:
Active
Peer Review
Title:
Mechanism of upper gut and airway interaction
Source:
NIH/NIDDK Program Project 1P01DK068051-01A1
Role:
Principal investigator
PI:
Self
Dates:
2007 - 2012
Direct Funds:
$2,000,000
 
Prior
Peer Review
Title:
Electrocardiographic changes in chronic obstructive airway diseases
Source:
25. Council of Industrial and Scientific Research Grant, Delhi, India
Role:
Principal Investigator
PI:
Self
Dates:
1979 - 1981
 
Title:
Upper esophageal sphincter opening and trans-sphincteric flow
Source:
NIH 5 R01 DC00669-04
Role:
Co-Principal Investigator
Dates:
4/1995 - 5/1999
 
Title:
Effect of acute and chronic smoking on the airway protective reflexes against aspiration
Source:
Institutional Research Grant, 25023
Role:
Principal Investigator
PI:
Self
Dates:
5/1996
 
Title:
Evaluation of self-expandable metal esophageal endo-prosthesis with anti-reflux mechanism in dogs
Source:
ARC
Role:
Principal investigator
PI:
Self
Dates:
1998
 
Title:
Effect of acute and chronic cigarette smoking on airway protective mechanisms
Source:
VA Merit Entry Program grant
Role:
Principal investigator
PI:
Self
Dates:
1998 - 2001
 
Title:
Program Project: Airway protection against aspiration of gastric contents
Source:
NIH No. PO1 DC03191
Role:
Co-investigator
Dates:
4/1/1999 - 3/31/2003
 
Title:
Laryngeal complications in animal models with chronic gastroesophageal reflux
Source:
ARC
Role:
Principal investigator
PI:
Self
Dates:
1999
 
Title:
To train and prepare interested fellows for a research career in academic gastroenterology
Source:
NIH/NIDDK IT32 DK Gastroenterology Training Grant
Dates:
9/1/2002 - 8/31/2007
 
Title:
Esophageal Motor Function in Health and Disease
Source:
NIH Grant # R01-DK25731
Role:
Co-Investigator
Dates:
7/1/2005 - 6/30/2010
 
Title:
Coordination of deglutition with respiration
Source:
HRRC 43-91
Role:
Co-Principal Investigator
 
Title:
The effect of pancreatic duct stent placement on pain due to chronic pancreatitis: a prospective randomized placebo controlled trial
Source:
HRRC 28-90
Role:
Co-Principal Investigator
 
Title:
Frequency of gastroesophageal reflux in health and diseases
Source:
HRRC 42-91
Role:
Co-Principal Investigator
 
Title:
A randomized, double-blind, placebo-controlled multicenter study to assess the efficacy, safety and tolerability of tegaserod 2 mg bid and 6 mg bid given orally vs placebo in patients with chronic constipation
Source:
CHTF919 E2302; 2001
Role:
Principal Investigator
PI:
Self
 
Title:
Evaluation of the tannenbaun (teflon) biliary endoprosthesis versus conventional (polyethylene) endoprosthesis for the treatment of benign, non-hilar biliary strictures: a prospective trial
Source:
HRRC 161-97
Role:
Principal investigator
PI:
Self
 
Title:
Mapping of cerebral cortical areas receiving afferent sensory input from GI tract using the functional MRI (BOLD) technique
Source:
HRRC 123-94
Role:
Co-Principal Investigator
 
Title:
Gastroesophageal reflux in patients with benign and malignant lesions of the aerodigestive tract
Source:
HRRC 122-92
Role:
Co-Principal Investigator
 
Title:
Effect of acute and chronic cigarette smoking on the airway protective mechanisms against aspiration of gastric contents
Source:
NIH/GCRC, HRRC 314-96
Role:
Principal Investigator
PI:
Self
 
Title:
Self-expanding Esophageal Plastic Stents for Benign Esophageal Strictures
Source:
Boston Scientific Research Grant
Role:
Principal Investigator
PI:
Self
 
Title:
VA Merit Review; VA #7866-01PR: Pharyngeal Motor Function in Health and Disease
Source:
HRRC 26-89
Role:
Co-Principal Investigator
 
Title:
19. Glaxo: Pharyngeal acid reflux in patients with benign lesions of the aerodigestive tract
Role:
Co-Principal Investigator
 
Title:
Clinical evaluation of PROPULSID (cisapride) tablets, 20 mg B.I.D., in the treatment of subjects with symptoms of chronic gastroesophageal reflux disease
Source:
HRRC 191-94
Role:
Co-Principal Investigator
 
Title:
Does prophylactic steroid administration reduce the risk and severity of post-ERCP pancreatitis? : Randomized prospective multicenter study
Source:
HRRC 206-95
Role:
Principal Investigator
PI:
Self
 
Title:
Mechanism of airway protection during gastroesophageal reflux
Source:
HRRC 199-93
Role:
Co-Principal Investigator
 
Title:
Comparison of transnasal unsedated and conventional upper GI endoscopy
Source:
HRRC 50-93
Role:
Co-Principal Investigator
 
Title:
Evaluation of the tannenbaun (teflon) biliary endoprosthesis versus conventional (polyethylene) endoprosthesis for the treatment of malignant non-hilar biliary strictures: a prospective, multicenter trial
Source:
HRRC 267-94
Role:
Principal Investigator
PI:
Self
 
Title:
Esophageal motor function in health and disease, re-submission
Source:
NIH 5 R01 DK25731-16
Role:
Co-Principal Investigator
 
INVITED LECTURES/WORKSHOPS/PRESENTATIONS:
Local
1. Lecture, `Glottal functions and pharyngeal bolus transit during normal eating and drinking', Medical College of Wisconsin Dysphagia Institute Research Seminar Series, Milwaukee, WI, 1994
2. Lecture, `Mechanism and timing of nasopharyngeal closure during swallowing and belching' Digestive Disease Research Seminar, Medical College of Wisconsin, Milwaukee, WI, 1994
3. Lecture, `Chronic pancreatitis: the role of endoscopic intervention", Practical Issues in Gastroenterology; An Update on GI Problems Encountered in Clinical Practice, Medical College of Wisconsin, Milwaukee, WI, 1994
4. Live demonstration, Sphincter of Oddi Manometry Course, Medical College of Wisconsin, Milwaukee, WI, 1994
5. Lecture, `Maintaining oral nutrition in patients with malignant esophageal lesions', Practical Issues in Gastroenterology; An Update on GI Problems Encountered in Clinical Practice, Medical College of Wisconsin, Milwaukee, WI, 1995
6. Live demonstration , unsedated transnasal pharyngoesophagogastro- duodenoscopy during the course on `Spectrum of Dysphagia: The Role of Latest Technology in Diagnosis and Management, Medical College of Wisconsin, Milwaukee, WI, 1996
7. Invited Speaker, Acute Pancreatitis Elmbrook Hospital CME program, Milwaukee, WI, 9/1998
8. G.I. Update Course, Oro-gastric pathway in esophageal cancer, Medical College of Wisconsin, Milwaukee, WI, 10/1998
9. Dysphagia Research Institute, “Stents for palliation of Esophageal Cancer”, Medical College of Wisconsin, Milwaukee, WI, 10/1998
10. Endoscopic intervention in pancreatic disorders, Grand Rounds, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, 9/1999
11. Unsedated, transnasal, upper G.I. endoscopy, Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee, WI, 10/1999
12. Grand Rounds invited speaker, Noncardiac chest pain, Beaver Dam, WI, 2000
13. Speaker, Digestive Disease Center, Medical College of Wisconsin, Milwaukee, WI, 2001
14. Esophageal and Aerodigestive Tract Disorders: Real World Challenges, Faculty and on Organizing Committee, Milwaukee, WI, 2003
15. Pancreas Cancer Symposium, Milwaukee, WI, 2/2010
16. Invited faculty, Pancreas Cancer Symposium, Milwaukee, WI, 2/2011
 
Regional
1. Speaker, Endoscopic palliation of esophageal cancer, Kansad City, MO, 2000
2. EUS for Cancer Staging, Grand Rounds Marquette General Hospital, Marquette, MI, 2004
3. Director, First-year GI Fellow Endoscopy Course, American Society of Gastrointestinal Endoscopy Training Committee, Chicago, IL, 8/2008
4. Invited faculty, American Osteopathic College of Radiology Mid-Year Course, Detroit, MI, 2009
5. Invited faculty, ASGE course on GI STENTs , Chicago, IL, 3/2010
6. Invited faculty, DDW, ASGEHands-on stents training post graduate course, Chicago, IL, 5/2011
7. Invited faculty, ASGE Stent course, Chicago, IL, 6/2011
8. Invited faculty, FYF Course ASGE West Region, Chicago, IL, 8/2011
 
National
1. Guest Speaker, Endoscopic treatment of chronic pancreatitis, Annual meeting of the Academy of Medical Sciences, Nagpur, India, 1997
2. Invited Speaker, `Sphincter of Oddi Dysfunction’ Annual conference of the Indian Association for Study of the Liver , 3/1998
3. American College of Physician, Recertification course: Invited to give the session on Gastroenterology and Hepatolgy, 10/1998
4. Invited Speaker, “Maintaining oro-gastric pathway in esophageal cancer”, Annual meeting of the Indian Society of Gastroenterology, 10/1998
5. Invited to participate , Harvard Live Endoscopy Course, Boston, MA, 4/1999
6. Invited Speaker , Endoscopic palliation of malignant dysphagia Disease Week, Orlando, FL, 5/1999
7. Invited Speaker, Endoscopic palliation of malignant dysphagia, Academy of Medical Sciences, 8/1999
8. Invited Speaker, Ascending Cholangitis, Academy of Medical Sciences, 8/1999
9. American College of Physician, Gastroenterology and Hepatolgy, 10/1999
10. Advances in acid suppression, Grand Rounds, Lake Region Hospital, North Dakota, 11/1999
11. Invited Speaker, What is new in acid suppression, Sullivan Hospital, Indiana, 1999
12. Endoscopic palliation of malignant dysphagia, Ground Rounds, University of Louisiana, New Orleans, LA, 1/2000
13. Anti-reflux stent in tumors of cardia, Multi-disciplinary International Symposium on Supraesophageal Complications of Reflux Diseases, Boston, MA, 2000
14. Invited Speaker, Anti-reflux expandable esophageal metal stents, Maui, 2000
15. Invited Speaker, Stents for tumors at the lower esophagus, University of South Florida, Tampa, FL, 2000
16. State of the Art Talk, What’s New in Esophageal Stents?” American Society of Gastrointestinal Endoscopy, Digestive Disease Week, Atlanta, GA, 2001
17. Speaker, Endoscopic palliation of esophageal cancer”, Charleston, SC, 2001
18. Speaker, Anti-reflux stent for tumors of the cardia”, Hospital Little Rock, AR, 2001
19. live Endoscopic Ultrasound demonstration, VA Hospital Little Rock, AR, 2001
20. Invited Faculty, Indian Society of Gastrointestinal Endoscopy, India, 2002
21. Invited Lecture , “Aerodigestive Reflexes”, at the Fifth International Conference on Supraesophageal Complications of Reflux Disease, Miami, FL, 2005
22. Invited Lecture , “How to choose an esophageal stent?” Asian Institute of Gastroenterology, Hyderabad, India, 2005
23. Invited faculty, Dysphagia Research Society, San Antonio, TX, 3/2011
 
International
1. Lecture, International Meeting of the Royal College of Physicians and Surgeons of Glasgow, Madras, India, 1988
2. Moderator, International Gastroenterology Meeting, Symposium on `Peptic Ulcer Disease', Muscat, Oman, 1990
3. Co-organizer and Co-chairman, International Gastroenterology Meeting, Muscat, Oman, 1990
4. live demonstration, Esophageal Manometry, Ministry of Health, Muscat, Oman, 1993
5. Lecture, Esophageal Motility Disorders, Role of Manometry Ministry of Health, Muscat, Oman, 1993
6. Lecture, `Sphincter of Oddi Manometry', Ministry of Health, Muscat, Oman, 1993
7. Lecture, `Endoscopic treatment of chronic pancreatitis', Central India Institute of Medical Sciences, Nagpur, India, 1994
8. Lecture, `New techniques in gastroenterology', Central India Institute of Medical Sciences, Nagpur, India, 1994
9. live therapeutic ERCPs, Endoscopy Unit, Midas Hospital, Nagpur, India, 1994
10. Lecture, Chronic pancreatitis: the role of endoscopic intervention, G.B. Pant Hospital, Delhi University, New Delhi, India, 1994
11. Lecture, Non-cardiac chest pain', Academy of Medical Sciences, Nagpur University, Nagpur, India, 1994
12. Invited Attendee, Pancreato-biliary Case Conference, G.B. Pant Hospital, Delhi University, New Delhi, India, 1994
13. B.J. Vakil Poona Oration, Chronic Pancreatitis: Role of Endoscopic Intervention', Society of Gastrointestinal Endoscopy of India, Annual Meeting, Cuttack, India, 1995
14. live therapeutic ERCPs, Endoscopy Unit, Mukewar Hospital, Nagpur, India, 1995
15. Chair, `New endoscopic techniques: How I do it', Indian Society of Gastroenterology, Annual Meeting, Cuttack, India, 1995
16. Guest Speaker, `Noncardiac Chest Pain', Indian Society of Gastroenterology, Annual Meeting, Cuttack, India, 1995
17. Guest Speaker, Noncardiac Chest Pain International Conference on GI Motility and Functional Gut Disorders, Muscat, Oman, 1996
18. Guest Speaker, `Sphincter of Oddi Manometry', International Conference on GI Motility and Functional Gut Disorders, Muscat, Oman, 1996
19. Chair, `Video demonstration of esophageal manometry and ambulatory pH and motility monitoring of the esophagus', International Conference on GI Motility and Functional Gut Disorders, Muscat, Oman, 1996
20. Invited Speaker, Supraesophageal Defense Mechanisms Against Aspiration of Gastric Contents, Annual International Meeting of the Dysphagia Research Society, Toronto, Canada, 10/1997
21. Invited to chair the session , Supraesophageal Complications of Gastro-esophageal Reflux Disease Annual International Meeting , Dysphagia Research Society, Toronto, Canada, 10/1997
22. Guest Speaker, Maintaining oral nutrition in esophageal malignancy, Annual meeting of the Academy of Medical Sciences, Nagpur, India, 1997
23. Guest Speaker, Maintaining oral nutrition in esophageal malignancy, G.B. Panth Hospital, Delhi University, India, 1997
24. chair, `Small Bowel Radiology’ Annual Meeting of the Indian Society of Radiology, India, 1/1998
25. Invited Speaker, Sphincter if Oddi Manometry, Department of Hepatology, Post-Graduate Institute of Medical Sciences and Research, Chandigarh, India, 1/1998
26. Invited Speaker, Maintaining oral nutrition in esophageal malignancy, Department of Thoracic Surgery, Post-Graduate Institute of Medical Sciences and Research, Chandigarh, India, 1/1998
27. Invited Speaker, Endosonography in Biliary Disorders, Annual conference of the Indian Association for Study of the Liver , 3/1998
28. Invited Speaker, “Supraesophageal defense mechanisms against aspiration”, Department of Gastroenterology and Hepatology, Aberdeen University, Aberdeen, U.K., 9/1998
29. Invited faculty, Esophageal and biliary motility and interventional procedures, Postgraduate Institute of Medical Sciences, Lucknow, 8/1999
30. Demonstration of Anti-reflux Esophageal Expandable Metal Stent , Esophageal Cancer: From Gene to Cure, Amsterdam, Netherlands, 2000
31. Performed live endoscopic placement of anti-reflux expandable metal esophageal stent, Third International Conference, Therapeutic Endoscopy, Mumbai, India, 2001
32. Speaker, Effect of cigarette smoking on supraesophageal defense mechanisms against aspiration of gastric contents, Indian Science Congress, New Delhi, 2001
33. Speaker, “Supraesophageal defense mechanisms against aspiration of gastric contents”, University of Aberdeen, Aberdeen, United Kingdom, 2001
34. Speaker, Endoscopic palliation of esophageal cancer, Indian Science Congress, New Delhi, 2001
35. Invited Faculty, Indian Society of Gastrointestinal Endoscopy Oration, Lucknow, India, 2001
36. Invited faculty, Fourteenth Therapeutic Endoscopy Course, Toronto, Canada, 2001
37. Invited faculty, Therapeutic Endoscopy Course, Muscat, Oman, 2002
38. Invited faculty, Digestive Disease Week, Bhopal, India, 2002
39. Stenting the Oesophagus, Grand Rounds, Aberdeen University, UK, 2003
40. Annual Asian Institute of Therapeutic Endoscopy Course, Hyderabad, India, 2004
41. Therapeutic Endoscopy Course Central , India Institute of Medical Sciences, India, 2004
42. Biliary Stents with Anti-reflux Valve, European Digestive Disease Week, Prague, 2004
43. “Stenting the Esophagus”, Lemrick, Ireland, 2005
44. “Anti-reflux Biliary Stent” European Digestive Disease Week, Copenhagen, Denmark, 2005
45. Invited Faculty, Advanced Therapeutic ERCP Course, Asian Institute of Gastroenterology, Hyderabad, India, 2006
46. Invited Faculty, Lecture “What’s New in Biliary Stenting” Asia-Pacific Society Study of Liver Diseases, Nagpur, 2006
47. Bankat Chandra Oration on “Management of Acute Pancreatitis”, Indian Medical Council, India, 2006
48. Grand Rounds, at Fortis Hospital, Chandigarh, India, 2006
49. Invited Faculty for lecture and live demonstrations , “Fifteenth Therapeutic Endoscopy Course, University of Sao Paulo, Sao Paulo, Brazil, 2006
50. Invited Faculty, Oman Gastroenterology Meeting, Muscat, Oman, 2007
51. Invited Faculty, Therapeutic Endoscopy Workshop, Midas Institute of Gastroenterology, Nagpur, India, 2007
52. Invited Faculty, Annual Indian Society of Gastrointestinal Endoscopy Meeting, Bangalore, India, 2007
53. Invited Faculty, Grand Rounds “How to Choose an Oesophageal Stent”, Aberdeen University, Aberdeen, U.K., 2007
54. Refractory Benign Esophageal Stricture, United European Gastroenterology Week, Vienna, Austria , 2008
55. Invited Faculty, OESO, International Conference on the Diseases of the Esophagus, Monaco, 2008
56. Invited Faculty, International Gastroenterology Conference, Muscat, Oman, 2008
57. Invited faculty , 10th Annual Therapeutic Endoscopy Workshop, Cairo, Egypt, 2008
58. Invited faculty, Endoscopic therapy for refractory benign esophageal strictures, Chandigarh, India, 2009
59. Invited faculty , MS ISG Chapter Gastroenterology Course, India, 2009
60. Invited faculty, PGI/AIIMS Endoscopy Course, Chandigarh, India, 2009
61. Invited faculty, Israel Postgraduate Course, Eilat, Israel, 2009
62. Invited faculty, Therapeutic Endoscopy Course, Malaysia, 2009
63. Invited faculty, 11th International Digestive Endoscopy Week, Chennai, 2010
64. Invited faculty, Central Asia Institute of Gastroenterology, India, 10/2011
65. Invited faculty & Committee Chair, OESO Meeting, Como, Italy, 2012
 
COMMUNITY SERVICE ACTIVITIES:
Support for community projects through Oxfam
Support for education of 6 children in third world country through Save the Children Organization, and Family Service Center.

ADVANCED ENDOSCOPY EXPERTISE:
Expandable esophageal stent for benign esophageal strictures
Capsule endoscopy
Transnasal endoscopy
Balloon enteroscopy
Endoscopic gastric placation
Therapeutic pancreatic and biliary ERCP: adult and pediatric (also Faculty at Children’s Hospital of Wisconsin, Medical College of Wisconsin, Milwaukee)
Diagnostic and therapeutic Endoscopic Ultrasound including ano-rectal ultrasonography
Endotherapy for malignant dysphagia (Metal stents, Laser, Photodynamic therapy, etc).
Ablative therapy for Barrett’s esophagus: RFA, PDT, Cryotherapy
Endoscopic mucosal resection

INVENTIONS/PATENTS:
2002 Self-expanding, metal, esophageal stent with anti-reflux valve. Stents deployed across the gastroesophageal junction for palliating malignant dysphasia can predispose to reflux including to risks of aspiration. A newly developed anti-reflux valve (Dua) was attached to the lower end of an expandable metal esophageal stent and this modification was shown to be effective in reducing GE reflux without interfering with the primary function of the stent, i.e. relieving dysphasia (Dua et al, Gastrointestinal Endows 53:6;603-613, 2001). The ability of the windsock valve to invert at high-pressure gradients between the stomach and the esophagus allows for belching and vomiting. Once inverted, the valve can easily be reverted to its anti-reflux position by swallowing water. In a prospective randomized study from Europe (Laash HU, et al. Effectiveness of open versus ant reflux stents for palliation of distal esophageal carcinoma and prevention of symptomatic gastro esophageal reflux. Radiology 2002;225(2):359-365), this anti-reflux stent was compared to an “open” stent in 50 patients with lower esophageal cancers. Twenty-four of the 25 patients randomized to the open stent developed reflux symptoms and one patient died within 24 hrs with aspiration after stent placement. Only 3 of the 25 patients with the Dua anti-reflux stent complained of reflux symptoms and there were no deaths. FDA 510- K cleared Dua anti-reflux stent
8/2006 Anti-reflux Plastic Biliary Stent Duodenobiliary reflux has been considered as one of the contributing factors for biliary stent occlusion. A newly developed anti-reflux biliary stent (Marathon Stent also referred to as Dua Biliary Stent) was shown to remain patent for a longer time as compared to an open stent in a prospective randomized study done on patients with malignant bile duct strictures (Dua et al, Impact of reducing duodenobiliary reflux on biliary stent patency: an in vitro evaluation and a prospective randomized clinical trial that used a biliary stent with an antireflux valve. Gastrointest Endosc 65:819-28, 2007.). This stent got FDA 510-K clearance for use in the US and is also cleared for use in Canada and Europe.
Hydroflush biliary stone extraction balloon. This catheter uses mechanical and hydrostatic forces to extract common bile duct stones. It has received a modification of existing device 510K FDA clearance.


BIBLIOGRAPHY
Refereed Journal Publications/Original Papers
1. Dua K, Surapaneni SN, Kuribayashi S, Hafeezullah M, Shaker R. Pharangeal Airway Protective Reflexes are Triggered Before the Maximum Volume of Fluid that the Hypopharynx can Safely Hold is Exceded. Am J Physiol-GI. 2011 (Epub ahead of print)
2. Dua KS, Merrill JT, Komorowski R. Neosquamous epithelium after Barrett's ablation: cause for concern? Gastrointest Endosc. 2011 March 21. (Epub ahead of print)
3. Dua K. Barrett's esophagus: surgical treatments: What are the consequences of an impaired esophageal motility on the choice of surgical technique? Ann. N.Y. Acad. Sci. 2011; 4-6 (In press)
4. Dua KS. Expanding indications for expandable esophageal stents. J Dig Endosc. (In press)
5. Dua K, Surapaneni SN, Kuribayashi S, Hafeezullah M, Shaker R. Protetive Role of Aerodigestive Reflexes Against Aspiration: Study on Subjects with Impaired and Preserved Reflexes. Gastroenterology 2011;140:1927-1933. This work was selected as a "must-read" by Faculty of 1000. Faculty of 1000 library places an article in the top 2% of articles published in biology and medicine.
6. Dua KS. Expandable stents for benign esophageal disorders. Gastrointest Endosc Clin N Am. 2011;21(3):359-76
7. Utilsky A, Werlin S, Dua KS. Role of ERCP in the management of non-iatrogenic traumatic bile duct injuries in the pediatric population. Gastrointest Endosc. 2011;73(4):823-7.
8. Oh YS, Dua K. Pancreatic sphincterotomy for pancreatitis associated with main duct intraductal papillary mucinous neoplasm. Endoscopy. 2011;43 Suppl 2:E75.
9. Hernandez LV, Dua KS, Surapaneni SN, Rittman T, Shaker R. Anatomic-manometric correlation of the upper esophageal sphincter: a concurrent US and manometry study. Gastrointest Endosc. 2010;72(3):587-92.
10. Lawal A, Antonik S, Dua K, Massey BT. Esophageal adenocarcinoma: pseudo-nutcracker esophagus. Dysphagia. 2009;24(2):234-7
11. Dua KS, Vijayapal A, Kingis J, Siddham V. Ciliated Foregut Cyst of the Pancreas: Pre-operative diagnosis using Endoscopic Ultrasound (EUS) Guided Fine Needle Aspiration (FNA) Cytology - A Case Report with Review of Literature. CytoJournal 2009;6:22-28
12. Dua KS, Surapaneni S, Santharam R, Knuff D, Hofmann C, Shaker, R. Effect of systemic nicotine and alcohol on airway protective reflexes. Am J Gastroenterol 2009;104(10):2431-8.
13. Dua K, Miranda A, Santharam R, Ramanujam S, Werlin S. Endoscopic Retrograde Cholangio-Pancreatography (ERCP) in the evaluation of abdominal pain in children. Gatrointest Endosc 2008;68(6):1081-5.
14. Dua KS, Vleggaar FP, Santharam R, Siersema PD. Removable self-expanding plastic esophageal stent as a continuous, non-permanent dilator in treating refractory benign esophageal strictures: A prospective two-center study. Am J Gastroenterol, 2008;103:2988-94.
15. Deenadayalu VP, Blaut U, Watkins JL, Barnett J, Freeman M, Geenen J, Ryan M, Parker H, Frakes JT, Fogel EL, Silverman WB, Dua KS, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J, Temkit M, Lehman GA, Sherman S. Does obesity confer an increased risk and/or more severe course of post-ERCP pancreatitis?: a retrospective, multicenter study. J Clin Gastroenterol 2008;42(10):1103-9.
16. Tipnis NA, Dua KS, Werlin SL. A retrospective assessment of magnetic resonance cholangiopancreatography in children. J Pediatr Gastroenterol Nutr. 2008;46:59-64.
17. Dua KS, Reddy ND, Rao VG, Banerjee R, Medda B, Lang. Impact of reducing duodenobiliary reflux on biliary stent patency: an in vitro evaluation and a prospective randomized clinical trial that used a biliary stent with an antireflux valve. Gastrointest Endosc 2007;65:819-28.
18. Bajaj JS, Dua KS, Hanson K, Presberg K. Prospective, randomized trial comparing effect of oral versus intravenous pantoprazole on rebleeding after nonvariceal upper gastrointestinal bleeding: a pilot study. Dig Dis Sci 2007;52:2190-4.
19. Kiely M, Dua KS, Rich P, Erickson E, Pitt H. Palliative stenting for late malignant gastric outlet obstruction. J Gastrointest Surg 2007;11:107-13.
20. Bajaj JS, Dua KS. The role of endoscopy in noniatrogenic injuries of the liver. Curr Gastroenterol Rep 2007;9:147-50.
21. Dua KS, Bajaj J, Ritmann T, Hofmann C Shaker R. Safety and Feasibility of Evaluating Airway Protective Reflexes During Sleep: New Technique and Preliminary Results Gastrointest Endosc 2007;65(3):483-86.
22. Dua KS, Reddy ND, Rao VG, Banerjee R, Medda B, Lang I. Impact of reducing duodenobiliary reflux on biliary stent patency: an in vitro evaluation and a prospective randomized clinical trial that used a biliary stent with an antireflux valve. Gastrointest Endosc. 2007;65(8):819-28.
23. Dua K. Self-expanding metal esophageal stents for palliating malignant dysphagia and fistula: Is the paradigm shifting? Gastrointest Endosc, 2007;65(1):77-81.
24. Bajaj JS, Bajaj S, Dua KS, Jaradeh S, Rittmann T, Hofmann C, Shaker R. Influence of sleep stages on esophago-upper esophageal sphincter contractile reflex and secondary esophageal peristalsis. Gastroenterology 2006;130(1):17-25.
25. Cheng CL, Sherman S, Watkins JL, Barnett J, Freeman M, Geenen J, Ryan M, Parker H, Frakes JT, Fogel EL, Silverman WB, Dua KS, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J, Lazzell-Pannell L, Rashdan A, Temkit M, Lehman GA. Risk factors for post-ERCP pancreatitis: a prospective multicenter study. Am J Gastroenterol 2006;101(1):139-47.
26. Iqbal MA, Lawatsch EJ, Coyle DJ, Rowe JJ, Li R, Dua KS, Kochar MS. Signet-ring cell carcinoma of the urinary bladder mimicking retroperitoneal fibrosis. WMJ 2006;105(3):55-8.
27. Bajaj JS, Spinelli KS, Dua KS. Postoperative management of noniatrogenic traumatic bile duct injuries: role of endoscopic retrograde cholangiopancreaticography. Surg Endosc 2006;20(6):974-7.
28. Attila T. Hellman RS, Krasnow AZ, Hofmann CL, Saeian K, Dua KS, Binion DG, Shaker R. Feasibility and safety of endoscopic evaluation of gastric emptying. Endoscopy 2005; 37(3):240-3.
29. Jean M, Dua K. Barrett's Esophagus, Best of DDW. Current Gastroenterology Reports. 2004; 6(3);202-5.
30. Dieperink E, Ho SB, Thuras LT, Dua K, Willenbring ML. Suicidal ideation during interferon-α2b and ribavirin treatment of patients with chronic hepatitis C. General Hospital Psychiatry 2004;26(3):237-40.
31. Dua KS. New approach to malignant strictures of the esophagus. Current Gastroenterology Reports 2003;5(3):198-205.
32. Jean M, Dua K. Ampullary Tumors. Current Gastroenterology Reports. 2002;5(2):171-175.
33. Sherman S, Lehman G, Earle D, Watkins J, Barnett J, Johanson J, Freeman M, Geenan J, Ryan M, Parker H, Lazaridis J, Fogel E, Flueckiger J, Silverman W, Dua KS, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J. Does prophylactic steroid administration reduce the frequency and severity of post-ERCP pancreatitis? Randomized prospective multicenter study. Gastrointest Endosc. 2003;58(1): 23-29.
34. Shaker R, Ren J, Bardan E, Easterling C, Dua K, Xie P, Kern M. Pharyngoglottal closure reflex: characterization in healthy young, elderly and dysphagic patients with predeglutitive aspiration. Gerontology. 2003;49(1), 12-20.
35. Nakeeb A, Tran K, Black M, Erickson B, Ritch P, Quebbeman E, Wilson S, Demeure M, Rilling W, Dua KS, Pitt H. Improved survival in resected biliary malignancies. Surgery 2002;132(4):555-564.
36. Dua K, Bardan E, Ren J, Sui Z, Hofmann C, Shaker R. Effect of chronic and acute cigarette smoking on the pharyngo-glottal closure reflex. Gut. 2002;51(6):771-775.
37. Dua K, Staff D, Shaker R. Clinical trial report: Endoscopic Suturing for GERD. Current Gastroenterology Reports. 2002;l 4(3):185-187.
38. Dua K, Staff D, Shaker R. Clinical trial report: Therapies for GERD: Long-term Outcomes. Current Gastroenterology Reports. 2002;4(3):183-183.
39. Catalano MF, Geenan JE, Lehman G, Seigel J, Jacob L, McKinley MH, Raijman I, Meier P, Jacobson I, Kozarek R, Al-Kawas F, Lo SK, Dua KS, Baillie J, Ginsberg G, Parson W, Meyerson SM, Cohen S, Nelson DB, McHattie JD, Carr-Locke DL. "Tannenbaum" teflon stents Vs traditional polyethylene stents for treatment of malignant biliary strictures. Gastrointest Endosc 2002;55(3):354-358.
40. Shaker R, Dua KS, Ren J, Xie P, Funahashi A, Schapira R. Vocal cord closure pressure during volitional swallow and other voluntary tasks. Dysphagia. 2002;17(1):13-18.
41. Dua KS. Anti-reflux stent in tumors of cardia. Am J Med 2001;111(8):190-196.
42. Dua KS, Kozarek R, Kim J, Evans J, Medda B, Lang I, Hogan W, Shaker R. Modified self-expanding metal esophageal stent with anti-reflux mechanism. Gastrointestinal Endoscopy. 2001;53(6):603-613.
43. Bardan E, Xie P, Brasseur J, Dua K, Ulualp SO, Kern M, Shaker R. Effect of ageing on the upper and lower oesophageal sphincters. Eur J Gastroenterol Hepatol 2000;12(11):1221-1225.
44. Bardan E, Saeian K, Xie P, Ren J, Kern M, Dua K, Shaker R. Effect of pharyngeal stimulation on the motor function of the esophagus and its sphincters. Laryngoscope 1999;109(3):437-441.
45. Saeian K, Townsend WF, Rochling FA, Bardan E, Dua K, Phadnis S, Dunn BE, Darnell K, Shaker R. Unsedated transnasal Esopha-gogastroduodenoscopy (T-EGD): An alternative approach to documenting Helicobacter pylori eradication. Gastrointest Endosc 1999;49(3 pt 1):297-301.
46. Dua K, Ren J, Sui Z, Shaker R. Effect of chronic and acute cigarette smoking on the pharyngo-upper oesophageal contractile reflex and reflexive pharyngeal swallow. Gut 1998;43(4):537-541.
47. Bardan E, Xie P, Ren J, Dua K, Shaker R. Effect of pharyngeal water stimulation on esophageal peristalsis and bolus transport. Am J Physiol (Gastrointest. Liver Physiol) 1997;272(2 Pt 1):G265-G71.
48. Dua KS, Shaker R, Ren J, Podvrsan B, Trifan A. Coordination of deglutitive glottal function and pharyngeal bolus transit during eating and drinking. Gastroenterology 1997;112(1):73-83.
49. Dua KS, Ruan E, Shaker R: Transnasal pharyngoesophagogastro- duodenoscopy (T-PEGD) in a patient with acute upper gastrointestinal bleeding. Endoscopy 1996;28(6):530.
50. Dean R, Shaker R, Dua K, Massey B, Berger W, Hogan WJ: A comparative study of unsedated transnasal esophagogastroduodenoscopy (T-EGD) and conventional EGD. Gastrointest Endosc 1996;44(4):422-424.
51. Dua KS, Stewart E, Arndorfer R, Shaker R, Esophageal intramural pseudodiverticulosis associated with achalasia. Am J Gastroenterol, 1996;91(9):1859-60.
52. Dua K, Shaker R, Ren J, Arndorfer R, Hofmann C: Mechanism and timing of nasopharyngeal closure during swallowing and belching. Am J Physiol, (Gastrointest. Liver Physiol) 1995;268(2 Pt 1):G1037-G1042.
53. Ren J, Shaker R, Kusano M, Podvrsan B, Metwally N, Dua KS, Sui K: Effect of aging on secondary esophageal peristalsis: presbyesophagus revisited. Am J Physiol (Gastrointest. Liver Physiol) 1995;31:G1037-42.
54. Trifan A, Shaker R, Ren J, Mital RK, Saeian K, Dua K, Kusano M: Inhibition of resting lower esophageal sphincter pressure by pharyngeal water stimulation in humans. Gastroenterology 1995;108(2):441-6.
55. Shabir S, Dua K, Zubaidi G: Two year experience of esophageal variceal sclerotherapy in Oman. Oman Medical Gazette 1990;VII:6-9.
56. Sharma S, Dua K, Zubaidi G: Acute upper gastrointestinal bleeding in Omani patients. Oman Medical Gazette 1990;VII:29-30.
57. Shah S, Dua K, Zubaidi G: Therapeutic endoscopies - our experience in Oman. Oman Medical Gazette 1990;VII:2-5.
58. Koruth NM, Dua KS, Brunt PW, Matheson NA: Comparison of highly selective vagotomy with truncal vagotomy and pyloroplasty: results at 8-15 years. British Journal of Surgery 1990;77(1):70-72.
59. Dua K, Mowat NAG: Familial Familial Crohn's disease, including spouse. Scott Med J. 1988;33(6):372-73.
60. Dua K, Brunt PW: Chronic hepatitis. Physician India 1986;3:515-21.
61. Dube GK, Waghela JD, Dua K, Chaubey BS: Juvenile pernicious anemia - a case report. Indian Medical Gazette 1981;CXV:282-84.
 
Books, Chapters, and Reviews
1. Kochar’s Concise Textbook of Medicine, Third Edition, Edited-in-chief: Kesevan Kutty. Publishers: Williams & Wilkins, 428 E. Preston St. Baltimore, MD 21202. Gastroenterology Sections: a. General Approach to Patients with Gastrointestinal Diseases b. Gastrointestinal Hemorrhage c. Esophagus d. Stomach and Duodenum e. Pancreas
2. Practice of Geriatrics, Third Edition, Edited by Duthie EH, Katz P. Publishers: W.B. Saunders, 6277 Sea Harbor Drive, Orlando, Fl 32887. Gastric, Pancreatic, and Hepatobiliary Disorders.
3. Modern Imaging in G.I. Radiology, Diagnostic Imaging and Radiation Oncology. Publishers: Springer-Verlag, New York. Recent Advances in Esophageal Endoprosthesis.
4. Kochar’s Concise Textbook of Medicine, Fourth Edition, Edited-in-chief: Kesevan Kutty. Publishers: Williams & Wilkins, 428 E. Preston St. Baltimore, MD 21202. Gastroenterology Sections: a. General Approach to Patients with Gastrointestinal Diseases b. Gastrointestinal Hemorrhage c. Esophagus d. Stomach and Duodenum e. Pancreas
5. Principles of Deglutition (Volume I) and Manual of Diagnostic and Therapeutic Techniques for Disorders of Deglutition (Volume II). First Edition (in press). Springer. Treatment Options for Deglutition Disorders: Esophageal Stenting for Relief of Dysphagia
6. Self-Expanding Stents in Gastrointestinal Endoscopy. First Edition (in press) SLACK, Inc. Esophageal stents in patients with malignant dysphagia due to unresectable disease
 
Abstracts
1. Amaris, M, Dua KS, Samuel E, Hafeezullah M, Blumin J, Shaker R. Integrity of Phonation Induced UES Contractile Response in Patinets with Gastroesophageal Reflux Disease (GERD). Gastroenterology, 2011. Abstract in press.
2. Shaker R, Rahimi Naini S, Hafeezullah M, Ulitsky A, Townsend W, Dua K, Hogan WJ. A novel "UES assist device" for prevention of supine pharyngeal reflux of gastric content. Gastroenterology, 2011. Abstract in press.
3. Rahimi Naini S, Hafeezullah M, Amaris M, Dua KS, Shaker R. Aspiration Induced Cough with Arousal during Sleep, is the Predominant Mechanism of Airway Protection in Subjects with Defective Aerodigestive Reflexes. Gastroenterology, 2011. Abstract in press.
4. Rahimi Naini S, Hafeezullah M, Dua KS, Massey BT, Hogan WJ, Shaker R. Defective Esophago-UES Contractile Reflex in Patients with Complaints of Regurugitation and Supraesophageal Symptoms. Gastroenterology, 2011. Abstract in press.
5. Merrill J, Schneeberger B, Oh, Y, Khan AH, Hogan WJ, Dua KS. Endoscopic ultrasound guided botulinum toxin injection for the treatment of colon outlet obstruction with hypertensive internal anal sphincter. Gastroenterology, 2011. Abstract in press.
6. Surapaneni SN, Dua KS, Kuribayashi S, Hafeezullah M, Amaris M, Shaker R. Aerodigestive Protective Reflexes are Triggered Before the Safe Capacity of Pharynx is Exceeded. Gastroenterology 2010;138 (5): S-13
7. Amaris M, Dua KS, Rahimi Naini S, Surapaneni SN, Shaker R. Influence of Neck Positions on Airway Protective Mechanisms. Gastroenterology 2010;138 (5): S-464.
8. Dua KS, Amaris M, Rahimi Naini S, Schneeberger B, Babaei A, Kuribayashi S, Blumin J, Shaker R. Alteration of Phonation Induced UES Contractile Response in Patients With Posterior Laryngitis. Gastroenterology 2010;138 (5): S-464.
9. Dua KS, Surapaneni SN, Kuribayashi S, Hafeezullah M, Shaker R. Arousal is the predominant mechanism to prevent aspiration of pharyngeal contents during sleep. Gastroenterology 2010;138 (5): S-600.
10. Ulitsky A, Werlin S, Two year experience of esophageal variceal sclerotherapy in Oman. ERCP for Non-Iatrogenic Traumatic Bile Duct Injuries in the Pediatric Population. 2010;71 (5): AB109.
11. Van Boeckel P, Dua KS, Schmits R, Surapaneni SN, Vleggaar FP, Siersema PD. Covered Self-Expandable Stents for the Treatment of Benign Esophageal Perforations and Anastomotic Leaks. Gastrointestinal Endoscopy 2010;71 (5): AB313-AB314.
12. Surapaneni SN, Dua KS, Kuribayashi S, Hafeezullah M, Tatro L, Shaker R. Influence of position on the maximum volume of fluid that can safely dwell in the Hypo-Pharyngx; "HypoPharyngeal Safe Volume" (HPSV). Gastroenterology 2009; 136(5):A-734.
13. Dua KS, Surapaneni SN, Kuribayashi S, Hafeezullah M, Shaker R. Influence of Sleep on Esophago-UES Contractile Reflex and Secondary Peristalsis in the Elderly. Gastroenterology 2009;136(5):A-468.
14. Dua KS, Surapaneni SN, Hafeezullah M, Reddy N, Tatro L, Shaker R. Prevalence of Abnormal Upper GI Findings in Apparently Healthy Volunteers Enrolled for Research Studies. Gastrointestinal Endoscopy 2009;69 (5):B350-AB351.
15. Surapaneni S, Dua KS, Kuribayashi S, Hafizullah M, Shaker R. Mechanism of airway protection against aspiration of refluxate: relationship between critical volume and threshold volume. Oral presentation; Dysphagia Research Society Annual Meeting, New Orleans, March 2009.
16. Surapaneni S, Dua KS, Kuribayashi S, Hafizullah M, Shaker R. Mechanisms of airway protection against aspiration of refluxate; relationship between critical volume and threshold volume. Neurogastroenterology and Motility Joint Internal Meeting, 2008;20(s2):21.
17. Dua KS, Siersema PD. Experience with a Removable Self-expanding Plastic Esophageal Stent (Polyflex® stent) as a Continuous, Non-permanent Dilator for Refractory Benign Esophageal Strictures. Gastrointest Endosc 2008;67(5):AB148.
18. NA Tipnis, Dua KS, JR Sty, SL Werlin. Evaluation of the Utility of Magnetic Resonance Cholangio-Pancreatography (MRCP) in Children using Endoscopic Retrograde (ERCP), Intra-operative or Percutaneous Cholangio-Pancreatography as Gold Standards. Pediatric Gastroenterology 2008;46(1)59-64.
19. Tan YW, Dua KS, Mowat NAG. Management of acute upper gastrointestinal bleeding in an intensive care setting: is the expense justified? British Journal of Surgery 2008;95(S3):151.
20. Vijayapal AS, Kiely MJ, Brasel KJ, Dua KS. Expandable metal stents for obstructing lesions of the colon as bridge therapy: An alternative to emergent surgery. Am J Gastroenterol 2007;102(s2):S249.
21. Bajaj J, Dua KS, Kuribayashi S, Hafeezullah M, Hofmann C, Shaker R. Arousal reflex and aerodigestive reflexes: Layers of airway protection against nocturnal reflex during slow-wave sleep. Gastroenterology 2007;132:A482.
22. Bajaj J, Knuff D, Dua KS, Hafeezullah M, Hofmann C, Shaker R. The pH of the proximal esophageal refluxate influences elicitation of aerodigestive reflexes during sleep. Gastroenterology 2007;132:A480.
23. Lakhtakia S, Reddy ND, Dua KS. Refractory benign esophageal strictures: continuous, Non-permanent dilatation with a self-expandable metal esophageal stent (Alimaxx-E) Gastrointest Endosc, 2007;65(5):AB284.
24. Mukewar S, Dua KS. Tuberculosis of the Colon: Endoscopic features with prospective follow-up after anti-tuberculosis treatment. Gastrointest Endosc, 2007;65(5):AB253.
25. Bajaj JS, Knuff D, Rittmann T, Dua KS, Shaker R. Influence of sleep stages on glottal function: Implications for nighttime airway safety. Gastroenterology 2006(1);130:17-25.
26. Hernandez LV, Dua KS, Shaker R. Anatomo-manometric correlation of the pharyngo-esophageal segment: A concurrent endosonographic and manometric study. Am J Gastroenterol 2006;130(1):A332.
27. Bajaj JS, Knuff D, Rittmann T, Dua KS, Shaker R. Presence of acid reduces the threshold for elicitation of EUCR and secondary peristalsis during sleep but not in awake state. Gastroenterology 2006;130(1):A737.
28. Viju Deenadayalu, Ula Blaut, James L. Watkins, Jeffrey L. Barnett, Martin L. Freeman, Joseph E. Geenen, Micahel E. Ryan, Harrison W. Parker, James T. Frakes, Evan Fogel, William B. Silverman, Dua K, Giuseppe Aliperti, Paul N. Yakshe, Michael Uzer, Whitney F. Jones, John S. Goff, M'Hamed Temkit, Glen A Lehman, Stuart Sherman. Does Obesity Increase the Incidence and Severity of Post-ERCP Pancreatitis? Gastrointest Endosc 2006;63(5):AB308.
29. Dua K, B Medda, I Lang. In Vitro Evaluation of a Biliary Stent with an Anti-Duodenobiliary Reflux Valve Using Ox Bile Perfused at Physiological Bile Flow Rates. Gastrointest Endosc 2006;63(5):AB298.
30. Dua K, Bajaj JS, Hanson K, Presberg K. Prospective randomized study comparing the effect of oral versus IV Pantoprazole on 30-day rebleeding rates in patients with acute non-varicel GI bleed: A pilot study. Gastroenterology 2006;130(1):A464.
31. Raj Santharam, Dua K. Continuous Non-Permanent Dilation of Resilient Non-Peptic Benign Esophageal Strictures Using a Self Expanding Plastic Esophageal Stent ((Polyflex) A Prospective Study. Gastrointest Endosc 2006;63(1):AB123.
32. JS Bajaj, S. Bajaj, Dua K, T. Rittmann, C. Hofmann, R. Shaker. Influence of Sleep Stages on Elicitation of Esophago-UES Contractile Reflex and Secondary Esophageal Peristalsis. Gastroenterology 2005;128(4), 407.
33. JS Bajaj, Dua K. Salvage Endoscopic Retrograde Cholangio-Pancreaticography in the Management of Non-Iatrogenic Traumatic Bile Duct Injuries. Gastroenterology.2005;128(4), 407.
34. Dua K, JS Bajaj, T. Rittmann, R. Shaker. Differential Response of Aerodigestive Reflexes to Topical Pharyngeal Anesthesia. Gastroenterology. 2005;126(4), 407.
35. Dua K, JS Bajaj, N. Reddy, G. Rao. Duodeno-Biliary Reflux May Contribute to Biliary Stent Occlusion: Prospective Randomized Study of a New Biliary Stent with An Anti-Duodeno-Biliary Reflux Valve in Patients with Biliary Strictures. Gastroenterology. 2005;128(4), 407.
36. Jasmohan S. Bajaj, Dua K, Shailesh Bajaj, Tanya Rittmann, Reza Shaker. Esophago-Upper Esophageal Sphincter Contractile Reflex (EUCR) and Secondary Esophageal Peristalsis (2º P) During NREM and REM Sleep. Gastroenterology. 2004;126(4); 632.
37. JS Bajaj, K Dua, S Bajaj, T Rittmann, R Shaker. Effect of Infusion Rate on Elicitation of Pharyngeal Reflexes and Development of Aspiration Among Smokers. American Motility Society, 2004
38. Rajesh Santharam, Candy Hofmann, Tanya Rittmann, Caryn Easterling, Mark Kern, Dua K, Reza Shaker. Deleterious Effect of Systemic Alcohol on Reflexive Pharyngeal Swallow and Pharyngo-UES Contractile Reflex. Gastroenterology, 2004;126(4):A-164.
39. Shannon J. Graewin, Dua K, Attila Nakeeb, Beth A. Erickson, Paul S. Ritch, Henry A. Pitt. Palliative Stenting for Late Malignant Gastric Outlet Obstruction DDW Surgey, 2004
40. Bajaj JS, Dua K, Bajaj S, Rittmann T, Shaker R. Effect of Infusion Rate on Elicitation of Pharyngeal Reflexes and Development of Aspiration Among Smokers. Neurogastroenterol Motil 2004;16(5):672.
41. Dua K, Bajaj J, Hofmann C, Rittmann T, Shaker R Reversibility of Pharyngo-UES contractile reflex (PUCR) and Reflexive Pharyngeal Swallow (RPS) in Ex-smokers. Gastroenterology. Gastroenterology. 2004;126 (4); 636.
42. Dua K, Bajaj J, Hofmann C, Rittmann T, Shaker R. Deterioration of Airway Protective Reflexes Accompanied by Absence of Arousal Response to Pharyngeal Water Stimulation: A Recipe for Aspiration. Gastroenterology. 2004;126 (4);633.
43. Dua K, Bajaj J, Hofmann C, Rittmann T, Shaker R. Safety and Feasibility of Evaluating Airway Protective Reflexes during Sleep: New Technique and Preliminary Results. Gastroenterology, 2004;124(4):580.
44. Bajaj J, Dua K, Kawamura O, Easterling C, Rittmann T, Shaker R. Reproducibility of pharyngo-UES contractile reflex and reflexive pharyngeal swallow and magnitude of intra and inter-observer variability. Gastroenterology 2003;124(4):257.
45. Dua K, Bajaj J, Hofmann C, Shaker R. Cigarette Smoking does not Alter Upper Esophageal Sphincter (UES) Contraction and Relaxation Responses to Esophageal Distention. Gastroenterology 2003;124(4):258.
46. Dua K, Kozarek R, Sakai P et al. Multicenter prospective evaluation of an anti-reflux expandable metal esophageal stent for palliation of malignant dysphagia. Gastrointest Endosco 2002;55(3):221.
47. Dua K, Bajaj J, Sui Z, Hofmann C, Shaker R. Altered phayngo-UES contractile reflex in patients with concomitant esophagitis and laryngitis. Gatsroenterology, 2002;122(Supp 4):187.
48. Tran K, Nakeeb A, Blacj M, Erickson B, Ritch P, Quebbeman E, Wilson S, Demeure M, Rilling W, Dua K, Pitt H. Improved survival in resected biliary malignancies. Central Surgical Association, 2002.
49. Dua K, Shaker R. In vitro evaluation of a modified biliary stent with anti-reflux mechanism. Gastrointest Endosc, 2001;53(5):102.
50. Dua K, Bajaj J, Sui Z, Hofmann C, Simunceak C, Shaker R. Altered pharyngo-upper esophageal sphincter contractile reflex in patients with gastroesophageal reflux disease. Gastroenterology, 2001;120(5):58.
51. Dua K, Kozarek R, Kim J, Evans J, Hogan W, Shaker R. Anti-reflux self-expanding metal esophageal stent (AR-SMES): Clinical evaluation in patients. Gastrointest Endosc, 2000;51(4):118.
52. Dua K, Sui Z, Hofmann C, Shaker R. Adverse effect of smoking on pharyngo-upper esophageal sphincter contractile reflex (PUCR) and reflexive pharyngeal swallow (RPS): central or peripheral mechanism? Gastroenterology, 2000;118(4):407.
53. Saeian K, Staff D, Townsend W, Dua K, Almagro U, Choi H, Komorowski R, Hofmann C, Kim J, Berger W, Shaker. Detection rate of dysplastic Barrett's mucosa by unsedated transnasal endoscopy (T-EGD) is comparable to conventional endoscopy. Gastroenterology, 2000;118(4):228.
54. Dua K, Kozarek R, Kim J, Evans J, Hogan W, Shaker R. Anti-reflux self-expanding metal esophageal stent (AR-SMES): Clinical evaluation in patients with malignant dysphagia. Proceedings of the Mid-West Gut Club, March, 2000.
55. Saeian K, Staff D, Townsend W, Dua K, Berger W, Hogan W, Shaker R. T-EGD: A new technique for accurately detecting and grading esophageal varices in cirrhotic patients, Gastrointest Endosc, 2000;51(4):125.
56. Saeian K, Staff D, Townsend W, Dua K, Berger W, Massey B, Shaker R. A new approach to screening for esophageal varices. Hepatology, 1999;30(4):219.
57. Dua K, Abraham C, Hofmann C, Sui Z, Shaker R. Airway protective reflexes in rehabilitated alcoholics. Gastroenterology, 1999;116(4):1081.
58. Dua K, Medda B, Lang I, Shaker R. Modified self-expanding metal esophageal stent with anti-reflux mechanism: in vitro and in vivo evaluation. Gastrointest Endosc, 1999;49(4):197.
59. Shaker R, Saeian K, Staff D, Townsend W, Dua K, Rassam P, Mehdi S, Rochling F, Almagro U, Choi H, Lentz M, Berger W. A new approach to survillance of columnar-lined "Barrett's" esophagus. Gastroenterology, 1999;116(4):308.
60. Hofmann C, Ryan C, Saeian K, Massey B, Dua K, Staff D, Thierfelder S, Hogan W, Shaker R. Prevalence of esophagitis in apparently healthy individuals and GERD patient volunteers for research studies. Gastroenterology, 1999;116(4):188.
61. Abraham C, Dua K, HofmannC, Arndorfer R, Rayan C, Shaker R. Effect of topical application of an alcohol beverage on the reflexive pharyngeal swallow. Gastroenterology, 1999;116(4):950.
62. Dua K, Medda B, Lang I, Shaker R. Modified self-expanding metal esophageal stent with anti-reflux mechanism: in vitro and in vivo evaluation. The Midwest Gut Club, 49;1999.
63. Meyerson SM, Geenan JE, Seigel J, Jacob L, McKinley MH, Raijman I, Meier P, Jacobson I, Kozarek R, Lehman G, Al-Kawas F, Lo S, Dua KS, Baillie J, Carr-Locke D, Ginsberg G, Parson W, Hogan WJ. Tannenbaum teflon stents Vs traditional polyethylene stents for treatment of malignant biliary strictures: A multicenter, prospective randomized trial. Gastrointest Endosc,1998;47(4):A1.
64. Sherman S, Lehman G, Freeman M, Watkins J, Barnett J, Fogel E, Johanson J, Geenan J, Ryan M, Parker H, Lazaridis E, Flueckiger J, Silverman W, Dua K, Aliperti G, Yakshe P, Ulzer M, Jones W, Goff J. Risk factors for post-ERCP pancreatitis: A prospective multicenter study. Gastroenterology, 1998;114(5):497.
65. Dua K, Ren J, Sui Z, Shaker K. Effect of cigarette smoking on pharyngoglottal and esophagoglottal closure reflexes. Gastroenterology, 1998;114(5):746.
66. Dua K, Ren J, Sui Z, Shaker K. Alteration of pharyngo-upper esophageal sphincter contractile reflex in smokers. Gastroenterology, 1998;114(5):746.
67. Dua K, Medda B, Lang I, Shaker. In vitro and in vivo evaluation of a modified self-expanding metal esophageal stent in preventing gastroesophageal reflux. Minimally Invasive Therapy, 1998;7:15.
68. Sherman S, Lehman G, Freeman M, Earle D, Watkins J, Barnett J, Johanson J, Geenan J, Ryan M, Parker H, Lazaridis J, Flueckiger J, Silverman W, Dua K, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J. Risk factors for post-ERCP pancreatitis: A prospective multicenter study. Am J Gastroenterol, 1997;45(4):1639.
69. Sherman S, Lehman G, Earle D, Watkins J, Barnett J, Johanson J, Freeman M, Geenan J, Ryan M, Parker H, Lazaridis J, Flueckiger J, Silverman W, Dua K, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J. Risk factors for Post-ERCP pancreatitis: A prospective multicenter study. Gastrointest Endosc, 1997;45(4):562.
70. Dua K, Rochling F, Saeian K, Shaker R. Use of self-expanding metal stents (SEMS) for palliation of malignant esophageal obstruction/tracheo-esophageal (TE) fistula in patients with previously placed esophageal stents. Gastrointest Endosc, 1997;45(4):171.
71. Dua K, Bardan E, Ren J, Sui Z, Shaker R. Effect of cigarette smoking on pharyngo-upper esophageal sphincter (UES) contractile reflex. Gastroenterology, 1997;112(3):725.
72. Dua K, Bardan E, Ren J, Sui Z, Shaker R. Effect of cigarette smoking on pharyngo-glottal closure reflex. Gastroenterology, 1997;112(3):725.
73. Rochling FA, Dua K, Saeian K, Bohorfoush III AG, Shaker R. Treatment of malignant esophageal stricture and tracheo-esophageal fistula with self-expanding metal stents. Gastrointest Endosc,1997;45(3):221.
74. Sherman S, Lehman G, Earle D, Watkins J, Barnett J, Johanson J, Freeman M, Geenan J, Ryan M, Parker H, Lazaridis J, Flueckiger J, Silverman W, Dua K, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J. Does obesity increase the incidence and severity of post-ERCP pancreatitis. Gastrointest Endosc, 1997;45(3):560.
75. Bardan E, Xie P, Hofmann C, Dua K, Arndofer RC, Shaker R. Alteration of anti-reflux barriers in the elderly. Gastroenterology, 1997;112(3):695.
76. Saeian K, Townsend WF, Rochling FA, Bardan E, Dua K, Darnell K, Shaker R. Unsedated transnasal-EGD (T-EGD) documents H. Pylori (HP) eradication. Gastroenterology, 1997;112(3):275.
77. Sherman S, Lehman G, Earle D, Watkins J, Barnett J, Johnson J, Freeman M, Geenan J, Ryan M, Parker H, Lazaridis J, Fogel E, Flueckiger J, Silverman W, Dua K, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J. Does prophylactic steroid administration reduce the frequency and severity of post-ERCP pancreatitis? Randomized prospective multicenter study. Gastrointest Endosc, 1997;45(3):561.
78. Evans J, Bohorfoush AG, Carron D, Shaker R, Dua K. Endoscopic management of bile leaks. Gastrointest Endosc,1997;45(3):425.
79. Sherman S, Lehman G, Earle D, Watkins J, Barnett J, Johnson J, Freeman M, Geenan J, Ryan M, Parker H, Lazaridis J, Flueckiger J, Silverman W, Dua K, Aliperti G, Yakshe P, Uzer M, Jones W, Goff J. Risk factors for post-ERCP pancreatitis: A prospective multicenter study. Proceedings of the Midwest Gut Club, Annual scientific meeting, Chicago, USA, 1997
80. Dua K, Bardan E, Xie P, Shaker R. Effect of chronic and acute smoking on upper and lower esophageal sphincters and on secondary esophageal peristalsis. Gastroenterology, 1996;110(3):658.
81. Sherman S, Lehman G, Earle D, Watkins J, Freeman M, Parker H, Ryan M, Barnett J, Johnson J, Geenan J, Silverman W, Yakshe P, Slivka A, Flueckiger J, Uzer M, Goff J, Dua K, Aliperti G, Jones W. Does prophylactic steroid administration reduce the frequency and severity of post-ERCP pancreatitis? Randomized prospective multicenter study. Gastrointest Endosc, 1996;43(3):120.
82. Dua K, Ren J, Bardan E, Shaker R. Evaluation of lower esophageal sphincter pressure during preparatory phase of normal eating. Gastroenterology, 1996;110(3):658.
83. Bardan E, Xie J, Dua K, Shaker R. Effect of pharyngeal water stimulation on esophageal peristalsis and bolus transport. Gastroenterology, 1996;110(3):630.
84. Bohorfoush AG, Manthey MW, Dua KS, Shaker R, Carron DA, Taylor AJ. Measurement of Maximum length of endoscopic sphincterotomy: how far can you cut safely? Gastrointest Endosc, 1995;41(4):376.
85. Dua K, Shaker R, Ren J, Sui Z. Effect of smoking on the threshold volume triggering pharyngeal swallow. Gastroenterology, 1995;108(4):594.
86. Shaker R, Ren J, Schapira RM, Dua KS, Sui Z, Funahashi A. Characterization of vocal cords and intratracheal pressure phenomena during swallowing, coughing and phonation. Gastroenterology, 1995;108(4):688.
87. Dua KS, Shaker R, Dean RS, Massey B, Trifan A, Ren J. Transnasal unsedated pharyngoesophagogastroduodenoscopy (T-PEGD) for evaluation of the pharyngeal and esophageal phases of swallowing. Dysphagia, 1994;9:268.
88. Shaker R, Dean R, Dua K, Massey B, Berger W, Hogan W. Unsedated transnasal esophago-gastroduodenoscopy (T-EGD); an alternative to conventional EGD. Gastrointestinal Endoscopy, 1994;40(3):73.
89. Saeian K, Shaker R, Sharma P, Trifan A, Ren J, Sui Z, Dua K. Effect of aging on lower esophageal sphincter pressure (LESP) response to pharyngeal water stimulation. Gastroenterology, 1994;106(4):630.
90. Ren J, Shaker R, Dua K, Trifan A, Podvrsan B, Sui Z. Glottal adduction response to pharyngeal water stimulation: evidence of pharyngoglottal closure reflex. Proceeding of the World Congress of Gastroenterology, 1994.
91. Trifan A, Shaker R, Ren J, Mital R, Saeian K, Dua K, Sui K. Inhibition of resting lower esophageal sphincter pressure by pharyngeal water stimulation in man. Proceeding of the World Congress of Gastroenterology, 1994.
92. Dua KS, Shaker R, Dean RS, Ren J, Trifan A, Bansal P. Functional evaluation of the pharynx and esophagus by unsedated transnasal endoscopy: a pilot study. Proceeding of the World Congress of Gastroenterology, 1994.
93. Ren J, Shaker R, Dua K, Trifan A, Podvrsan B, Sui Z. Glottal adduction response to pharyngeal water stimulation: evidence of pharyngoglottal closure reflex. Gastroenterology, 1994;106(4):558.
94. Trifan A, Shaker R, Ren J, Mital R, Saeian K, Dua K, Sui K. Inhibition of resting lower esophageal sphincter pressure by pharyngeal water stimulation in man. Gastroenterology, 1994;106(4):580.
95. Trifan A, Shaker R, Ren J, Dua K, Sui Z. Comparison of pharyngeal peristalsis during primary and secondary swallows. Gastroenterology, 1994;106:580.
96. Dua KS, Shaker R, Dean RS, Ren J, Trifan A, Bansal P. Functional evaluation of the pharynx and esophagus by unsedated transnasal endoscopy: a pilot study. Gastroenterology, 1994;106(4):490.
97. Dua K, Shaker R, Ren J, Podvrsan B, Trifan A. Coordination of deglutitive glottal function and pharyngeal bolus transit during eating and drinking. Gastroenterology, 1994;106(4):490.
98. Shaker R, Podvrsan, Ren J, Metwally N, Dua K, Sui Z. Effect of aging on secondary esophageal peristalsis: presbyesophagus revisited. Gastroenterology, 1994;104(4):646.
99. Dua KS, Shaker R, Hofmann C, Arndorfer R. Coordination of deglutitive nasopharyngeal closure with oropharyngeal swallowing events. Gastroenterology, 1993;104:499.
100. Shaker R, Massey BT, Ren J, Hogan WJ, Dua KS, Arndorfer R, Hofmann C. A preliminary report on the glottal protective closure response to esophageal air distention in achalasia patients. Gastrointestinal Motility, 1993;5:216.
101. Dua KS, Shaker R, Lui J, Ren J, Arndorfer R, Hofmann C. Mechanism and timing of nasopharyngeal closure during swallowing and belching. Gastrointestinal Motility, 1993;5:187.
102. Dua KS, Devi L, Zubaidi G. Helicobacter pylori (as determined by histology, serology and CLO tests) and antral gastritis in Omani patients with duodenal ulcer. Journal of Gastroenterology & Hepatology, 1991;6:92.
103. Dua KS, Devi L, Zubaidi G. Prevalence of helicobacter pylori and antral gastritis in Omani patients. Proceedings of the World Congress of Gastroenterology, 1990;PD81.
104. Dua KS, Mowat NAG, Sinclair TS, Brunt PW. Reproducibility of orocecal transit time in the fasting and fed states as measured by the lactulose hydrogen breath test. Proceedings of the World Congress of Gastroenterology, 1990;PP710.
105. Dua KS, Mowat NAG, Sinclair TS, Brunt PW. Mouth to cecum transit time as determined by the lactulose hydrogen breath test. Proceedings of the Holland Digestive Disease Week, 1989;124-125.
106. Dua KS, Godden D, Sinclair TS, Brunt PW, Mowat NAG. Atopic status, bronchial reactivity to inhaled histamine and pulmonary function in patients with inflammatory bowel disease (IBD). Proceeding of the International Congress on `Clinical Controversies in Inflammatory Bowel Diseases', 85, 1987.
107. Dua KS, Koruth NM, Brunt PW, Matheson NA. Is highly selective vagotomy a good operation for duodenal ulcer ? A longer look at the answer. Gut 1987;8:1374.