• 6410 Citations
  • 35 Scopus h-Index
20052019
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Research Output 2005 2019

2010
132 Citations (Scopus)

History, Molecular Mechanisms, and Endoscopic Treatment of Barrett's Esophagus

Spechler, S. J., Fitzgerald, R. C., Iyer, P. G. & Wang, K. K. N., Mar 2010, In : Gastroenterology. 138, 3, p. 854-869 16 p.

Research output: Contribution to journalArticle

Barrett Esophagus
History
Therapeutics
Research Personnel
94 Citations (Scopus)

Predictors of progression in barrett's esophagus: Current knowledge and future directions

Iyer, P. G., Bansal, A., Sharma, P. & Wang, K. K. N., Jul 2010, In : American Journal of Gastroenterology. 105, 7, p. 1490-1502 13 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Adenocarcinoma
Biomarkers
Loss of Heterozygosity
Chemoprevention
43 Citations (Scopus)

Prevalence and predictors of recurrent neoplasia after ablation of Barrett's esophagus

Badreddine, R. J., Iyer, P. G., Wang, K. K. N., Wong Kee Song, L. M., Buttar, N. S., Dunagan, K. T., Lutzke, L. S. & Borkenhagen, L. S., Apr 2010, In : Gastrointestinal Endoscopy. 71, 4, p. 697-703 7 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Recurrence
Neoplasms
Photochemotherapy
Smoking
38 Citations (Scopus)

The Mayo Dysphagia Questionnaire-30: Documentation of reliability and validity of a tool for interventional trials in adults with esophageal disease

McElhiney, J., Lohse, M. R., Arora, A. S., Peloquin, J. M., Geno, D. M., Kuntz, M. M., Enders, F. T., Fredericksen, M., Abdalla, A. A., Khan, Y., Talley, N. J., Diehl, N. N., Beebe, T. J., Harris, A. M., Farrugia, G., Graner, D. E., Murray, J. A., Locke, G. R., Grothe, R. M., Crowell, M. D. & 10 others, Francis, D. L., Grudell, A. M. B., Dabade, T., Ramirez, A., Alkhatib, M., Alexander, J. A., Kimber, J., Iyer, P. G., Zinsmeister, A. R. & Romero, Y., Sep 2010, In : Dysphagia. 25, 3, p. 221-230 10 p.

Research output: Contribution to journalArticle

Esophageal Diseases
Deglutition Disorders
Reproducibility of Results
Documentation
Outpatients
2009
6 Citations (Scopus)

Endocytoscopy in Esophageal Cancer

Tomizawa, Y., Abdulla, H. M., Iyer, P. G., Wong Kee Song, L. M., Lutzke, L. S., Borkenhagen, L. S. & Wang, K. K. N., Apr 2009, In : Gastrointestinal Endoscopy Clinics of North America. 19, 2, p. 273-281 9 p.

Research output: Contribution to journalArticle

Cellular Structures
Esophageal Neoplasms
Observation
Technology
227 Citations (Scopus)

Endoscopic and Surgical Treatment of Mucosal (T1a) Esophageal Adenocarcinoma in Barrett's Esophagus

Iyer, P. G., Wu, T. T., Wigle, D. A., Buttar, N. S., Wongkeesong, L. M., Dunagan, K. T., Lutzke, L. S., Borkenhagen, L. S. & Wang, K. K. N., Sep 2009, In : Gastroenterology. 137, 3, p. 815-823 9 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Adenocarcinoma
Therapeutics
Survival
Carcinoma
322 Citations (Scopus)

Epidemiology of Eosinophilic Esophagitis Over Three Decades in Olmsted County, Minnesota

Iyer, P. G., Alexander, J. A., Schleck, C. D., Zinsmeister, A. R., Smyrk, T. C., Elias, R. M., Locke, G. R. & Talley, N. J., Oct 2009, In : Clinical Gastroenterology and Hepatology. 7, 10, p. 1055-1061 7 p.

Research output: Contribution to journalArticle

Eosinophilic Esophagitis
Epidemiology
Incidence
Confidence Intervals
Telephone
464 Citations (Scopus)

Guidelines for prevention of NSAID-related ulcer complications

Lanza, F. L., Chan, F. K. L., Quigley, E. M. M., Inadomi, J., Baroni, D., Bernstein, D., Brugge, W., Chang, L., Cunningham, J., Dendrinos, K. G., DeVault, K., Edmundowicz, S., Ginsburg, P. M., Hornbuckle, K., Kefalas, C., Koch, T., Lehrer, J., Lembo, A., O'Brien, J., Papp, J. & 11 others, Parkman, H., Perumalsamy, K. S., Iyer, P. G., Roach, A., Sampliner, R., Sonnenberg, A., Vargo, J., Vege, S. S., Vela, M., Zein, N. & Zuckerman, M. J., Mar 2009, In : American Journal of Gastroenterology. 104, 3, p. 728-738 11 p.

Research output: Contribution to journalArticle

Ulcer
Anti-Inflammatory Agents
Guidelines
Pharmaceutical Preparations
Wounds and Injuries
660 Citations (Scopus)

Management of Crohn's disease in adults

Lichtenstein, G. R., Hanauer, S. B., Sandborn, W. J., Inadomi, J., Baroni, D., Bernstein, D., Brugge, W., Chang, L., Cunningham, J., Dendrinos, K. G., DeVault, K., Edmundowicz, S., Ginsburg, P. M., Hornbuckle, K., Kefalas, C., Koch, T., Lehrer, J., Lembo, A., O'Brien, J., Papp, J. & 11 others, Parkman, H., Perumalsamy, K. S., Iyer, P. G., Roach, A., Sampliner, R., Sonnenberg, A., Vargo, J., Vege, S. S., Vela, M., Zein, N. & Zuckerman, M. J., Feb 2009, In : American Journal of Gastroenterology. 104, 2, p. 465-483 19 p.

Research output: Contribution to journalArticle

Crohn Disease
Guidelines
Physicians
Expert Testimony
Advisory Committees
2008
27 Citations (Scopus)

Correlation of histology with biomarker status after photodynamic therapy in barrett esophagus

Iyer, P. G., Wang, K. K. N., Halling, K. C., Buttar, N. S., Wongkeesong, L. M., Zinsmeister, A. R., Brankley, S. M., Westra, W. M., Lutzke, L. S., Borkenhagen, L. S. & Dunagan, K., Aug 1 2008, In : Cancer. 113, 3, p. 470-476 7 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Photochemotherapy
Histology
Biomarkers
Cell Biology
20 Citations (Scopus)

Eosinophilic Esophagitis in Adults

Iyer, P. G. & Talley, N. J., Jun 1 2008, In : Gastroenterology Clinics of North America. 37, 2, p. 349-368 20 p.

Research output: Contribution to journalReview article

Eosinophilic Esophagitis
Food
Deglutition Disorders
Tears
Eosinophils
25 Citations (Scopus)

Photodynamic therapy for Barrett's esophagus: Does light still have a role?

Wang, K. K. N., Lutzke, L., Borkenhagen, L., Westra, W., Song, M. W. K., Iyer, P. G. & Buttar, N. S., Dec 2008, In : Endoscopy. 40, 12, p. 1021-1025 5 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Photochemotherapy
Light
Esophageal Stenosis
Chest Pain
18 Citations (Scopus)

Predictors of recurrent esophageal food impaction: A case-control study

Iyer, P. G., Reddy, J. G., Enders, F. T., Schmoll, J. A., Lewis, J. T. & Wongkeesong, L. M., Aug 2008, In : Journal of Clinical Gastroenterology. 42, 7, p. 771-775 5 p.

Research output: Contribution to journalArticle

Case-Control Studies
Food
Odds Ratio
Confidence Intervals
Recurrence
61 Citations (Scopus)

Utility of Biomarkers in Prediction of Response to Ablative Therapy in Barrett's Esophagus

Iyer, P. G., Wang, K. K. N., Halling, K. C., Buttar, N. S., Wongkeesong, L. M., Zinsmeister, A. R., Brankley, S. M., Fritcher, E. G. B., Westra, W. M., Krishnadath, K. K., Lutzke, L. S. & Borkenhagen, L. S., Aug 2008, In : Gastroenterology. 135, 2, p. 370-379 10 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Photochemotherapy
Biomarkers
Therapeutics
Odds Ratio
2007
11 Citations (Scopus)

Endoscopic resection of nonadenomatous ampullary neoplasms

Chahal, P., Iyer, P. G., Sanderson, S. O., Gostout, C. J., Levy, M. J. & Baron, T. H., Aug 2007, In : Journal of Clinical Gastroenterology. 41, 7, p. 661-666 6 p.

Research output: Contribution to journalArticle

Multiple Hamartoma Syndrome
Peutz-Jeghers Syndrome
Paraganglioma
Hamartoma
Carcinoid Tumor
3 Citations (Scopus)

Endoscopic therapy in patients with Barrett's esophagus and portal hypertension

Iyer, P. G., Wang, K. K. N., Joyce, A. M., Kochman, M. L., Lutzke, L. S. & Borkenhagen, L. S., Mar 2007, In : Gastrointestinal Endoscopy. 65, 3, p. 527-531 5 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Portal Hypertension
Therapeutics
Hemorrhage
Tertiary Care Centers
49 Citations (Scopus)

Factors Associated With Increased Survival After Photodynamic Therapy for Cholangiocarcinoma

Iyer, P. G., Wang, K. K. N., Baron, T. H., Buttar, N. S., Wongkeesong, L. M., Roberts, L. R., LeRoy, A. J., Lutzke, L. S. & Borkenhagen, L. S., Jun 2007, In : Clinical Gastroenterology and Hepatology. 5, 6, p. 743-748 6 p.

Research output: Contribution to journalArticle

Cholangiocarcinoma
Photochemotherapy
Survival
Confidence Intervals
Survival Rate
212 Citations (Scopus)

Long-Term Survival Following Endoscopic and Surgical Treatment of High-Grade Dysplasia in Barrett's Esophagus

Iyer, P. G., Wang, K. K. N., Buttar, N. S., Wongkeesong, L. M., Krishnadath, K. K., Nichols, F. C., Lutzke, L. S. & Borkenhagen, L. S., Apr 2007, In : Gastroenterology. 132, 4, p. 1226-1233 8 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Photochemotherapy
Esophagectomy
Survival
Therapeutics
71 Citations (Scopus)

Predictors of stricture formation after photodynamic therapy for high-grade dysplasia in Barrett's esophagus{A figure is presented}

Iyer, P. G., Wang, K. K. N., Buttar, N. S., Wongkeesong, L. M., Lutzke, L. S. & Borkenhagen, L. S., Jan 2007, In : Gastrointestinal Endoscopy. 65, 1, p. 60-66 7 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Photochemotherapy
Pathologic Constriction
Esophageal Stenosis
Odds Ratio
215 Citations (Scopus)

Prevalence and predictive factors of eosinophilic esophagitis in patients presenting with dysphagia: A prospective study

Iyer, P. G., Talley, N. J., Romero, Y., Arora, A. S., Kryzer, L. A., Smyrk, T. C. & Alexander, J. A., Dec 2007, In : American Journal of Gastroenterology. 102, 12, p. 2627-2632 6 p.

Research output: Contribution to journalArticle

Eosinophilic Esophagitis
Deglutition Disorders
Prospective Studies
Biopsy
Endoscopy
64 Citations (Scopus)

Significance of neoplastic involvement of margins obtained by endoscopic mucosal resection in Barrett's esophagus

Iyer, P. G., Buttar, N. S., Wongkeesong, L. M., Lewis, J. T., Sanderson, S. O., Lutzke, L. S., Borkenhagen, L. S. & Wang, K. K. N., Nov 2007, In : American Journal of Gastroenterology. 102, 11, p. 2380-2386 7 p.

Research output: Contribution to journalArticle

Barrett Esophagus
Esophagectomy
Carcinoma
Surgical Pathology
Neoplasm Staging
2006

Endoscopic therapy for early esophageal cancer and premalignant lesions in barrett's esophagus

Iyer, P. G. & Wang, K. K. N., 2006, Endoscopic Oncology: Gastrointestinal Endoscopy and Cancer Management. Humana Press, p. 43-51 9 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Barrett Esophagus
Esophageal Neoplasms
Therapeutics
Neoplasms
Risk Management

Frozen section analysis of esophageal endoscopic mucosal resection specimens in the real-time management of Barrett's esophagus

Iyer, P. G., Wang, K. K. N., Lutzke, L. S., Lewis, J. T., Sanderson, S. O., Buttar, N. S., Wong Kee Song, L. M., Borkenhagen, L. S. & Burgart, L. J., Feb 2006, In : Clinical Gastroenterology and Hepatology. 4, 2, p. 119-120 2 p.

Research output: Contribution to journalArticle

Time Management
Barrett Esophagus
Frozen Sections
Endoscopic Mucosal Resection
17 Citations (Scopus)

Frozen section analysis of esophageal endoscopic mucosal resection specimens in the real-time management of Barrett's esophagus

Iyer, P. G., Wang, K. K. N., Lutzke, L. S., Lewis, J. T., Sanderson, S. O., Buttar, N. S., Wong Kee Song, L. M., Borkenhagen, L. S. & Burgart, L. J., Feb 2006, In : Clinical Gastroenterology and Hepatology. 4, 2, p. 173-178 6 p.

Research output: Contribution to journalArticle

Time Management
Barrett Esophagus
Frozen Sections
Carcinoma
Endoscopic Mucosal Resection
3 Citations (Scopus)

Rodent endosonography to monitor esophageal cancer

Buttar, N. S., Wiersema, M. J., Wang, K. K. N., DeMars, C. J., Iyer, P. G. & Lutzke, L. S., Jun 2006, In : International Journal of Gastrointestinal Cancer. 37, 2-3, p. 84-90 7 p.

Research output: Contribution to journalArticle

Endosonography
Esophageal Neoplasms
Rodentia
Ultrasonography
Neoplasms
2005
5 Citations (Scopus)

Endoscopic mucosal resection: Esophageal applications

Iyer, P. G. & Wang, K. K. N., Feb 2005, In : Current Treatment Options in Gastroenterology. 8, 1, p. 41-49 9 p.

Research output: Contribution to journalArticle

Neoplasms
Squamous Cell Neoplasms
Barrett Esophagus
Esophagus
Mucous Membrane
12 Citations (Scopus)

Hemobilia caused by cytomegalovirus cholangiopathy

Iyer, P. G., Abraham, S. C., Baron, T. H. & Topazian, M., Nov 1 2005, In : American Journal of Gastroenterology. 100, 11, p. 2592-2595 4 p.

Research output: Contribution to journalArticle

Hemobilia
Cytomegalovirus
Hematemesis
Ganciclovir
Endoscopic Retrograde Cholangiopancreatography
18 Citations (Scopus)

Spontaneous perforation in the ringed esophagus

Iyer, P. G. & Arora, A. S., Dec 1 2005, In : Diseases of the Esophagus. 18, 6, p. 406-409 4 p.

Research output: Contribution to journalArticle

Esophagus
Eosinophilic Esophagitis
Deglutition Disorders
Gastroesophageal Reflux
Tears