PrasadGanapathy(Prasad)IyerMDMSc

PubMed

• Comparing recurrence rates between endoscopic mucosal resection and endoscopic submucosal dissection in Barrett's endoscopic therapy: timing and definitions matter!
  Kornpong Vantanasiri, Prasad G Iyer
  Endoscopy. 2025-01-01
• TEMPORARY REMOVAL: QUALITY INDICATORS FOR UPPER GI ENDOSCOPY.
  Rena Yadlapati, Dayna Early, Prasad G Iyer, Douglas R Morgan, Neil Sengupta
  Gastrointestinal Endoscopy. 2024-11-14
• International Validation of a Novel PEACE Scale to Improve the Quality of Upper Gastrointestinal Mucosal Inspection During Endoscopy.
  Marcin Romańczyk, Madhav Desai, Michal F Kamiński, Seiichiro Abe, Asma A Alkandari
  Clinical and Translational Gastroenterology. 2024-11-14

Journal Articles

• Response to Kosmidou Et Al  
  Prasad (Prasad) Iyer, MD, Nature
• Continuing Medical Education Exam: September 2018  
  Karthik Ravi, Ara Sahakian, Prasad G Iyer, Gastrointestinal Endoscopy
• Continuing Medical Education Exam: August 2018  
  Karthik Ravi, Ara Sahakian, Prasad G Iyer, Gastrointestinal Endoscopy
• Higher Rate of Barrett’s Detection in the First Year After Successful Endoscopic Therapy: Meta-Analysis  
  Prasad G Iyer, Kenneth K Wang, Nicholas J Shaheen, David A Katzka, Nature
• Highly Discriminant Methylated DNA Markers for the Non-Endoscopic Detection of Barrett’s Esophagus  
  Prasad G Iyer, Kenneth K Wang, David A Ahlquist, Thomas C Smyrk, Kristyn A Maixner, Herbert C Wolfsen, Nature
• OC-060 Performance Characteristics Of Unsedated Ultrathin Video Endoscopy In The Assessment Of The Upper Gastrointestinal (gi) Tract: Systematic Review And Meta-analysis  
  Sami S, Subramanian V, Ortiz-Fernandez-Sordo J, Saeed AH, Singh S, Iyer P, Ragunath K, Gut, 6/1/2014
• OC-020 Comparative Effectiveness Of Novel Techniques For Barrett's Oesophagus (bo) Screening In The Community: A Prospective Randomised Trial  
  Sami S, Dunagan K, Johnson M, Schlek C, Zinsmeister A, Wong Kee Song L, Wang K, Katzka D, Ragunath K, Iyer P, Gut, 6/1/2014
• High-grade dysplasia and intramucosal adenocarcinoma in Barrett's esophagus: the role of endoscopic eradication therapy  
  Leggett CL, Prasad GA, Curr Opin Gastroenterol, 7/1/2012
• Distribution of body fat and its influence on esophageal inflammation and dysplasia in patients with Barrett's esophagus  
  Nelsen EM, Kirihara Y, Takahashi N, Shi Q, Lewis JT, Namasivayam V, Buttar NS, Dunagan KT, Prasad GA, Clin Gastroenterol Hepatol, 7/1/2012
• Medical and endoscopic management of high-grade dysplasia in Barrett's esophagus  
  Wang KK, Tian JM, Gorospe E, Penfield J, Prasad G, Goddard T, Wongkeesong M, Buttar NS, Lutzke L, Krishnadath S, Dis Esophagus, 5/1/2012
• Variation in age at cancer diagnosis in familial versus nonfamilial Barrett's esophagus  
  Chak A, Chen Y, Vengoechea J, Canto MI, Elston R, Falk GW, Grady WM, Guda K, Kinnard M, Markowitz S, Mittal S, Prasad G, Shaheen N, Willis JE, Barnholtz-Sloan JS, Cancer Epidemiol Biomarkers Prev, 2/1/2012
• Endoscopic mucosal resection  
  Prasad GA, Namasivayam V, Tech. Gastrointest. Endosc., 1/1/2010
• Photodynamic therapy for Barrett's esophagus: does light still have a role?  
  Wang KK, Lutzke L, Borkenhagen L, Westra W, Song MW, Prasad G, Buttar NS, Endoscopy, 12/1/2008
• Endoscopic Mucosal Resection: Esophageal Applications  
  Prasad G, Wang KK, Curr Treat Options Gastroenterol, 2/1/2005
• Spontaneous perforation in the ringed esophagus  
  Prasad GA, Arora AS, Dis Esophagus, 1/1/2005
• Outbreak of Serratia marcescens infection in a neonatal intensive care unit  
  Prasad GA, Jones PG, Michaels J, Garland JS, Shivpuri CR, Infect Control Hosp Epidemiol, 5/1/2001
• Blocking of the hepatic vein outflow by neointima covering a wallstent across a membranous stenosis of the inferior vena cava  
  Dutta U, Garg PK, Agarwal R, Dutta Gupta S, Prasad GA, Kaul U, Tandon RK, Cardiovasc Intervent Radiol, 11/1/1999
• Adrenocortical reserve in patients with drug sensitive and drug resistant tuberculosis  
  Prasad GA, Sharma SK, Kochupillai N, Indian J Chest Dis Allied Sci, 1/1/1996
• Join now to see all

Books/Book Chapters

• Mayo Clinic Gastroenterology and Hepatology Board Review 
  Chapter: Barrett esophagus and esophageal cancer. 
  Page 17 - 25Iyer PGEditors: Hauser SC; Oxentenko AS; Sanchez W.Mayo Clinic Scientific Press, RochesterEdition 5th,2015
• Endoscopic Oncology: Gastrointestinal Endoscopy and Cancer Management 
  Chapter: Endoscopic therapy for early esophageal cancer and premalignant lesions in Barrett's esophagus. 
  Page 43 - 51Prasad GA, Wang KKEditors: Faigel DO, Kochman ML.Humana Press, Totowa, NJ2006
• Tuberculosis 
  Chapter: Adrenocortical reserve in tuberculosis. 
  Page 380 - 385Prasad GA, Sharma SK, Kochupillai NJaypee Brothers Medical Publishers, India2001

Abstracts/Posters

• Association between Serum Adipokines, Insulin and Risk of Barrett's Esophagus: A systematic Review and Meta-analysis.
  Prasad G. Iyer, MD, Digestive Diseases Week 2014, Chicago, IL, 5/1/2014
• Outcomes of Recurrent Intestinal Metaplasia following Successful Endotherapy of Barrett's Esophagus Associated Dysplasia.
  Prasad G. Iyer, MD, Digestive Diseases Week 2014, Chicago, IL, 5/1/2014
• Outcomes of Radiofrequency Ablation in patients with Barrett's Intramucosal Carcinoma are comparable to th ose with other histologic subsets of BE.
  Prasad G. Iyer, MD, Digestive Diseases Week 2014, Chicago, IL, 5/1/2014
• Acid-suppressive medications and risk of esophageal adenocarcinoma in patients with Barrett's esophagus: a systematic review and meta-analysis.
  Singh PP, Singh S, Garg SK, Iyer PG, El-Serag H, J Clin Oncol, 1/20/2014
• Patient Preferences for Endoscopic Assessment of Gastroesophageal Reflux and Barrett's Esophagus.
  Egginton J, Dunagan KT, Shah ND, Blevins C, Ragunathan K, Leggett CL, Iyer PG, Gastroenterology, 5/1/2013
• 1001 Clonal Diversity of Barrett's Esophagus With High Grade Dysplasia Decreases After Endoscopic Mucosal Resection.
  Westra W de Wit G, Iyer P, Brankley S, Halling K, Buttar N, Wong Kee Song L, Lutzke L, Dunagan K, Goddard T, Wang K, Krishnadath K, Gastroenterology, 5/1/2013
• Chromatin Remodeling via Sin 3-HDAC and Hp1-Hmt Pathways in the Regulation of Oncogenic AKT1.
  Sharma AN, Chowdhury S, Lomberk GA, DeMars CJ, Iyer PG, Limburg PJ, Krishnadath KK, Wang KK, Urrutia RA, Buttar N, Gastroenterology, 5/1/2013
• Genetic inkage Predisposing to Familial Barrett's Esophagus.
  Sun X, Elston R, Guda K, Falk GW, Grady WM, Kinnard MF, Mittal SK, Canto MI, Shaheen NJ, Iyer PG, Wang JS, Abrams JA, Barnholtz-Sloan J, Willis J, Markowitz S, Chak A, Gastroenterology, 5/1/2013
• Influence of Histological Variables on Long-Term Outcomes in Barrett's Esophagus Related T1 Esophageal Adenocarcinoma.
  Iyer P, Lewis J, Wu T, Schleck C, Zinsmeister A, Dunagan K, Lutzke K, Wang K, Gastroenterology, 5/1/2013
• Durability of Radiofrequency Ablation for Barrett's Esophagus: A Single Center 10-Year Experience.
  Chandra S, Gorospe EC, Leggett CL, Lutzke L, Iyer PG, Gastroenterology, 5/1/2013
• Macrophage Related Inflammation and Phenotype Modulation in Barrett's Esophagus.
  Malhi H, Gores G, Katzka D, Bharucha A, Wang K, Iyer P, Gastroenterology, 5/1/2013
• Obstructive Sleep Apnea Is a Risk Factor for Barrett's Esophagus.
  Leggett C, Gorospe E, Calvin A, Harmsen W, Zinsmeister A, Caples S, Somers V, Wang K, Lutzke L, Iyer P, Gastroenterology, 5/1/2013
• Durability of Photodynamic Therapy for Barrett's Dysplasia: A Single Center 20-Year Experience.
  Chandra S, Gorospe E, Leggett C, Teekamdas R, Lutzke L, Buttar N, Iyer P, Wang K, Gastroenterology, 5/1/2013
• Influence of Obesity on Barrett's Esophagus Phenotype.
  Lomeli L, Leggett C, Dunagan K, Lutzke L, Wang K, Iyer P, Gastroenterology, 5/1/2013
• Non-Dysplastic Barrett's Esophagus Is Not Created the Same: Genetic Abnormalities in Non-Dysplastic Barrett's Esophagus Are Dependent on Clinical Context.
  Timmer M, Brankley S, Gorospe E, Iyer P, Lutzke L, Anderson M, Krishnadath K, Halling K, Wang K, Gastroenterology, 5/1/2013
• Cellular Senescence and P16ink4a Immunohistochemistry Predicts Response to Radiofrequency Ablation (RFA) for Barrett's Esophagus (BE) With High-grade Dysplasia (HGD).
  Penfield J, Leggett C, Anderson M, Lutzke L, Wu T, Zinsmeister A, Iyer P, Wang K, Gastroenterology, 5/1/2013
• IL-1Beta-STAT3 Mediated Up-Regulation of AKT1 Expression in Barrett's Esophagus: A Potential Link Between Inflammation and Carcinogenesis.
  Sharma AN, Chowdhury S, DeMars CJ, Lomberk GA, Lutzke LS, Iyer PG, Wang KK, Krishnadath KK, Urrutia RA, Buttar N, Gastroenterology, 5/1/2013
• Pancreatic juice prostaglandin E2 levels are elevated in minimal change chronic pancreatitis and correlate with endoscopic ultrasound findings.
  Abu Dayyeh BK, Bick BL, Buttar NS, Chari ST, Clain JE, Gleeson FC, Levy MJ, Pearson RK, Petersen BT, Rajan E, Iyer PG, Limburg PJ, Sharma AN, Chowdhury S, Vege SS, Top..., Gastroenterology, 5/1/2013
• Influence of Obesity on GE Junction Anatomy and its Reversibility Following Weight Loss.
  Sharma PK, Fidler JL, Schleck CD, Zinsmeister AR, Bharucha AE, Katzka DA, Iyer PG, Gastroenterology, 5/1/2013
• Centeral Adiposity Is Associated With Increased Risk of Esophageal Inflammation, Metaplasia and Adenocarcinoma.
  Singh S, Sharma AN, Buttar N, Katzka DA, Wang KK, Iyer PG, Gastroenterology, 5/1/2013
• Highly Discriminant Methylated DNA Markers for Detection of Barrett's Esophagus.
  Iyer PG, Dunagan KT, Clemens MA, Yab TC, Waylor WR, Simonson JA, Devens ME, Mahoney DW, Ahlquist DA, Gastroenterology, 5/1/2013
• Rate and predictors of progression and mortality in a large population based cohort of BE.
  Ragunathan K, Dhanasekaran R, Sharma PK, Dunagan KT, Schleck CD, Zinsmeister AR, Locke GR, Talley NJ, Wang KK, Iyer PG, Gastroenterology, 1/1/2013
• Statins and the Risk of Esophageal Cancer: A Systematic Review and Meta-analysis.
  Singh S, Singh A, Singh PP, Murad MH, Iyer P, Am J Gastroenterol, 10/1/2012
• Diabetes Mellitus Increases the Risk of Barrett's Esophagus: Results from a Large Population Based Case Control Study.
  Iyer P, Heien H, Borah B, Cooper G, Das A, Chak A, Am J Gastroenterol, 10/1/2012
• Cryotherapy for Persistent Barrett's Dysplasia after Radiofrequency Ablation: If You Can't Burn it Freeze It!
  Gorospe E, Ragunathan K, Timmer M, Lutzke L, Iyer P, Wang K, Am J Gastroenterol, 10/1/2012
• Join now to see all

Lectures

• Burning Issues in Barrett’s Esophagus 
  AGC 2018 Annual Scientific Meeting, Philadelphia, PA - 10/9/2018
• Screening and Surveillance – Why and How? 
  AGC 2018 Annual Scientific Meeting, Philadelphia, PA - 10/9/2018
• "Workshop on EMR and ESD" 
  Coimbatore, India - 6/1/2014
• "ASGE/Sociedad Interamericana de Endoscopia Digestiva (SIED) International Symposium: ERCP/Therapeutic Endoscopy" 
  Chicago, IL - 5/1/2014
• "Perspectives in GI Endoscopy in 2014: An Indo-ASGE Symposium" 
  Chicago, IL - 5/1/2014
• "Prevalence and characteristics of esophagitis and Barrett's esophagus in population subjects without gastroesophageal reflux symptoms: results from a large randomized... 
  Chicago, IL - 5/1/2014
• "Highly Discriminant Methylated DNA Markers for Detection of Barrett's Esophagus" 
  Chicago, IL - 5/1/2014
• "Rates and Predictors of Progression to Adenocarcinoma in a Large Population Based Barrett's Esophagus Cohort" 
  Chicago, IL - 5/1/2014
• "Complications of EMR and ESD" 
  Hyderabad, India - 3/1/2014
• "Barrett's Endotherapy: Progress, Challenges, and Opportunities" 
  University of Rochester Medical Center, Rochester, NY - 3/1/2014
• "Endoscopic Submucosal Dissection: Tips and Tricks" 
  Ahmedabad, India - 11/1/2013
• "Screening for Esophageal Adenocarcinoma" 
  Philadelphia, PA - 11/1/2013
• "Hands on Barrett's Ablation" 
  San Diego, CA - 10/1/2013
• "Screening for Esophageal Cancer in 2013" 
  Beijing, China - 10/1/2013
• "Screening for Esophageal Cancer" 
  Tenwek Hospital, Bomet, Kenya - 10/1/2013
• Mayo Clinic Gastroenterology and Hepatology Board Review 
  Mayo School of Continuous Professional Development, Wheeling, Illinois - 9/5/2013
• "Barrett's Esophagus and Esophageal Neoplasms" 
  Chicago, IL - 9/1/2013
• "Board Review: Esophagus" 
  Chicago, IL - 9/1/2013
• "EUS, Barrett's and Early Esophageal Cancer-Making Sense of It All" 
  Rochester, MN - 8/1/2013
• "Endoscopic submucosal dissection for early esophageal cancer" 
  Paris, France - 8/1/2013
• "Stromal response to systemic derangements in Barrett's Esophagus" 
  Paris, France - 8/1/2013
• "Esophageal Neoplasia and GERD: Assessment, Treatment and Trends" 
  Orlando, FL - 5/1/2013
• "Narrow Band Imaging Enhances Esophageal Endotherapy: Pro Debate on whether NBI has improved Esophageal Endotherapy" 
  Orlando, FL - 4/1/2013
• "Complex/Difficult Upper GI Cases" 
  Cardiff, United Kingdom - 3/1/2013
• "Recognizing Dysplasia in Barrett's During Endoscopy" 
  Cardiff, United Kingdom - 3/1/2013
• Join now to see all