CONTACT INFORMATION http://www.loyola.org
Thomas Schnell
M.D.
  • Professor
  • Gastroenterology
Specialties
Heartburn, Stomach Cancer, Esophagus Cancer, Colon Cancer, Reflux Disease
Board Certifications
  • Gastroenterology - Subspecialty Cert: AM Board of Internal Medicine
  • Internal Medicine - General Cert: AM Board of Internal Medicine
Publications

Non-cardiac chest pain: the long-term natural history and comparison with gastroesophageal reflux disease.Williams,J. F.; Sontag,S. J.; Schnell,T.; Leya,J.American Journal of Gastroenterology 2009 ;104(9):2145-2152

Five-year colon surveillance after screening colonoscopyLieberman,D. A.; Weiss,D. G.; Harford,W. V.; Ahnen,D. J.; Provenzale,D.; Sontag,S. J.; Schnell,T. G.; Chejfec,G.; Campbell,D. R.; Kidao,J.; Bond,J. H.; Nelson,D. B.; Triadafilopoulos,G.; Ramirez,F. C.; Collins,J. F.; Johnston,T. K.; McQuaid,K. R.; Garewal,H.; Sampliner,R. E.; Esquivel,R.; Robertson,D.Gastroenterology 2007 ;133(4):1077-1085

The long-term natural history of gastroesophageal reflux diseaseSontag,S. J.; Sonnenberg,A.; Schnell,T. G.; Leya,J.; Metz,A.Journal of clinical gastroenterology 2006 ;40(5):398-404

Asthmatics with gastroesophageal reflux: long term results of a randomized trial of medical and surgical antireflux therapiesSontag,S. J.; O'Connell,S.; Khandelwal,S.; Greenlee,H.; Schnell,T.; Nemchausky,B.; Chejfec,G.; Miller,T.; Seidel,J.; Sonnenberg,A.American Journal of Gastroenterology 2003 ;98(5):987-999

Inguinal hernia is not a sign of colon cancer: results of a prospective screening trial.Avidan,B.; Sonnenberg,A.; Bhatia,H.; Aranha,G.; Schnell,T. G.; Sontag,S. J.Alimentary Pharmacology & Therapeutics 2002 ;16(6):1197-1201

New occurrence and recurrence of neoplasms within 5 years of a screening colonoscopy.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Leya,J.; Metz,A.; Sontag,S. J.American Journal of Gastroenterology 2002 ;97(6):1524-1529

Acid reflux is a poor predictor for severity of erosive reflux esophagitis.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.Digestive Diseases & Sciences 2002 ;47(11):2565-2573

Hiatal hernia and acid reflux frequency predict presence and length of Barrett's esophagus.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.Digestive Diseases & Sciences 2002 ;47(2):256-264

There are no reliable symptoms for erosive oesophagitis and Barrett's oesophagus: endoscopic diagnosis is still essential.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.Alimentary Pharmacology & Therapeutics 2002 ;16(4):735-742

Hiatal hernia size, Barrett's length, and severity of acid reflux are all risk factors for esophageal adenocarcinoma.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Chejfec,G.; Metz,A.; Sontag,S. J.American Journal of Gastroenterology 2002 ;97(8):1930-1936

Reduced symptoms and need for antisecretory therapy in veterans 3 years after Helicobacter pylori eradication with ranitidine bismuth citrate/amoxicillin/clarithromycin.Sontag,S. J.; O'Connell,S.; Schnell,T.; Chejfec,G.; Seidel,J.; Sonnenberg,A.American Journal of Gastroenterology 2001 ;96(5):1390-1395

Long-term outcome of medical and surgical therapies for gastroesophageal reflux disease: follow-up of a randomized controlled trialSpechler,S. J.; Lee,E.; Ahnen,D.; Goyal,R. K.; Hirano,I.; Ramirez,F.; Raufman,J. P.; Sampliner,R.; Schnell,T.; Sontag,S.; Vlahcevic,Z. R.; Young,R.; Williford,W.JAMA 2001 ;285(18):2331-2338

Gastric surgery is not a risk for Barrett's esophagus or esophageal adenocarcinomaAvidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.Gastroenterology 2001 ;121(6):1281-1285

No association between gallstones and gastroesophageal reflux disease.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.American Journal of Gastroenterology 2001 ;96(10):2858-2862

Risk factors for erosive reflux esophagitis: a case-control study.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.American Journal of Gastroenterology 2001 ;96(1):41-46

Temporal associations between coughing or wheezing and acid reflux in asthmatics.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.Gut 2001 ;49(6):767-772

Walking and chewing reduce postprandial acid reflux.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Sontag,S. J.Alimentary Pharmacology & Therapeutics 2001 ;15(2):151-155

Long-term nonsurgical management of Barrett's esophagus with high-grade dysplasiaSchnell,T. G.; Sontag,S. J.; Chejfec,G.; Aranha,G.; Metz,A.; O'Connell,S.; Seidel,U. J.; Sonnenberg,A.Gastroenterology 2001 ;120(7):1607-1619

Is there a link between cervical inlet patch and Barrett's esophagus?.Avidan,B.; Sonnenberg,A.; Chejfec,G.; Schnell,T. G.; Sontag,S. J.Gastrointestinal endoscopy 2001 ;53(7):717-721

Risk factors of oesophagitis in arthritic patients.Avidan,B.; Sonnenberg,A.; Schnell,T. G.; Budiman-Mak,E.; Sontag,S. J.European journal of gastroenterology & hepatology 2001 ;13(9):1095-1099

Education
Medical School
  • University of Minnesota Medical School
Residency
  • VA Medical Center, Hines, Internal Medicine: General
Fellowship
  • VA Medical Center, Hines, Internal Medicine: Gastroenterology