Thomas E. Kowalski MD

PubMed

• Entero-Enteric Lumen Apposing Metal Stents (LAMS) for Biliary Access in Patients with Altered Anatomy.
  Divya Chalikonda, Shuji Mitsuhashi, Brianna Shinn, Amy Tyberg, Haroon Shahid
  Digestive Diseases and Sciences. 2025-08-19
• Management of the Disconnected Pancreatic Duct in Pancreatic Necrosis.
  C Mel Wilcox, Ji Young Bang, Akwi Asombang, Chloe Bennett, Yan Bi
  Clinical Gastroenterology and Hepatology. 2025-07-17
• Evaluating the Outcomes and Safety of Underwater Ampullectomy Versus Traditional (Gas insufflation) Ampullectomy.
  Marcel Robles, Blaise O'Malley, Caleb Song, Brandon Havranek, Angela Yang
  Gastrointestinal Endoscopy. 2025-06-29

Journal Articles

• We Retrospectively Collected High-Risk Surgical Patients from Six Centers with Acute Cholecystitis Who Underwent Gallbladder Drainage by EGBD, TP, or PTGBD. Data Inclu...  
  Mustafa A. Arain, Michel Kahaleh, Douglas G. Adler, Eric M. Christiansen, Amy Tyberg, Thomas E. Kowalski, Usama Iqbal, David E. Loren, Surgical Endoscopy
• Hydrogen Peroxide-Assisted Endoscopic Necrosectomy for Walled-Off Pancreatic Necrosis: A Dual Center Pilot Experience  
  Siddiqui AA, Easler JJ, Strongin A, Slivka A, Kowalski TE, Muddana V, Chennat JS, Baron TH, Loren DE, Papachristou GI, Dig Dis Sci, 1/1/2014
• Mutational analysis of cytocentrifugation supernatant fluid from pancreatic solid mass lesions  
  Finkelstein SD, Bibbo M, Kowalski TE, Loren DE, Siddiqui AA, Solomides C, Ellsworth E, Diagn Cytopathol, 11/22/2013
• Self-expanding metal stents (SEMS) for preoperative biliary decompression in patients with resectable and borderline-resectable pancreatic cancer: outcomes in 241 pati...  
  Siddiqui AA, Mehendiratta V, Loren D, Kowalski T, Fang J, Hilden K, Adler DG, Dig Dis Sci, 1/1/2013
• EUS-guided pancreatic fluid aspiration for DNA analysis of KRAS and GNAS mutations for the evaluation of pancreatic cystic neoplasia: a pilot study  
  Siddiqui AA, Kowalski TE, Kedika R, Roy A, Loren DE, Ellsworth E, Adler D, Finkelstein SD, Gastrointest Endosc, 1/1/2013
• Risk stratification for the development of post-ERCP pancreatitis by sphincter of Oddi dysfunction classification  
  Beltz S, Sarkar A, Loren DE, Andrel J, Kowalski T, Siddiqui AA, South Med J, 1/1/2013
• Stage of hilar cholangiocarcinoma predicts recurrence of biliary obstruction in patients with metal stents  
  Siddiqui A, Shahid H, Sarkar A, Cox K, Kowalski TE, Loren DE, Sharma A, Laing P, Birch M, Adler DG, Clin Gastroenterol Hepatol, 1/1/2013
• Evaluation of a fully covered self-expanding metal stent with flared ends in malignant biliary obstruction: a multicenter study  
  Kahaleh M, Talreja JP, Loren DE, Kowalski TE, Poneros JM, Degaetani M, Raijman I, Sejpal DV, Patel S, Rosenkranz L, McNamara KN, Brijbassie A, Wang AY, Gaidhane M, Set..., J Clin Gastroenterol, 1/1/2013
• A Randomized Multicenter Trial Comparing 10-French Plastic to Covered Metal Stents for the Palliation of Lower Malignant Biliary Obstruction  
  Moses PL, AlNaamani KM, Barkun AN, Gordon SR, Mitty RD, Branch MS, Kowalski TE, Martel M, Adam V, World J Gastroenterol, 1/1/2013
• Targeted cyst wall puncture and aspiration during EUS-FNA increases the diagnostic yield of pre-malignant and malignant pancreatic cysts  
  Hong SK, Loren DE, Rogart JN, Siddiqui AA, Andrel J, Bibbo M, Coben RM, Meckes DP, Kowalski TE, Gastrointestinal Endoscopy, 1/1/2012
• Placement of fully covered self-expandable metal stents in patients with locally advanced esophageal cancer before neoadjuvant therapy  
  Siddiqui, AA, Sarkar A, Beltz S, Lewis J, Loren D, Kowalski T, Fang J, Hilden K, Alder DG, Gastrointestinal Endoscopy, 1/1/2012
• Comparison of the influence of plastic and fully covered metal biliary stents on the accuracy of EUS-FNA for the diagnosis of pancreatic cancer  
  Siddiqui AA, Fein M, Kowalski TE, Loren DE, Eloubeidi MA, Dig Dis Sci, 1/1/2012
• The role of endoscopic ultrasound-guided fine needle aspiration (eus-fna) for the diagnosis of intra-abdominal lymphadenopathy of unknown origin  
  Korenblit J, Anantharaman A, Loren DE, Kowalski TE, Siddiqui AA, J Interv Gastroenterol, 1/1/2012
• Multisociety Guideline on Reprocessing Flexible GI Endoscopes: 2011  
  Petersen BT, Chennat J, Cohen J, Cotton PB, Greenwald DA, Kowalski TE, Krinsky ML, Park WG, Pike IM, Romagnuolo J, Infection Control and Hospital Epidemiology, 6/1/2011
• Cyst Wall Puncture and Aspiration during EUS-guided Fine Needle Aspiration Increases the Diagnostic Yield of Mucinous Cysts of the Pancreas  
  Rogart JN, Loren DE, Singu BS, Kowalski, TE, Clinical Journal of Gastroenterology, 1/1/2011
• False-positive EUS-guided FNA cytology for solid pancreatic lesions  
  Siddiqui AA, Kowalski TE, Shahid H, O’Donnell S, Tolin J, Loren DE, Infantolino A, Hong SK, Eloubeidi MA, Gastrointestinal Endoscopy, 1/1/2011
• The added value of molecular testing in small pancreatic cysts  
  Toll AD, Kowalski T, Loren D, Bibbo M, Journal of the Pancreas, 1/1/2010
• Post-sphincterotomy transampullary balloon dilation is a safe and effective technique  
  Kowalski TE, Nathwani RA, Loren DE, Assis D, Banwait K, Digestive Disease and Science, 1/1/2009
• Rosai-Dorfman disease of the colon  
  Nathwani RA, Kenyon L, Kowalski TE, Gastrointestinal Endoscopy, 1/1/2008
• Closure of a nonhealing gastrocutaneous fistula using an endoscopic clip  
  Siddiqui A, Kowalski T, Cohen S, Southern Medical Journal, 1/1/2007
• Cystic lymphangioma of the pancreas  
  Sanaka M, Kowalski TE, Clinical Gastroenterology and Hepatology, 1/1/2007
• Solid serous adenoma of the pancreas, a rare form of serous cystadenoma  
  Sanaka MR, Kowalski TE, Brotz C, Yeo C, McCue P, Palazzo J, Digestive Disease and Science, 1/1/2007
• Endoscopic stenting of esophageal cancer: the clinical impact  
  Nathwani RA and Kowalski TE, Current Opinion in Gastroenterology, 1/1/2007
• A survey of oesophageal cancer: pathology, stage, and clinical presentation  
  Schlansky B, DiMarino AJ, Loren D, Infantolino A, Kowalski T, Cohen S, Alimentary Pharmacology & Therapeutics, 1/1/2006
• Endoscopic sphincterotomy with or without cholecystectomy for choledocholithiasis in high risk surgical patients: A decision analysis  
  Siddiqui A, Mitroo P, Kowalski T, Loren D, Alimentary Pharmacology & Therapeutics, 1/1/2006
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Books/Book Chapters

• Management of Localized Pancreatic Cancer in The Cancer Journal: The Journal of Principal and Practice of Oncology 
  Chapter: Endoscopic Ultrasound and fine needle aspiration in pancreatic cancer 
  Lewis J and Kowalski TEEditors: CJ Yeo, V. DeVita, T. Lawrence, S. Rosenberg.Lippincott, Williams, and Wilkins2012
• Sleisenger and Fordtran’s Gastrointestinal and Liver Disease, Review and Assessment 
  Chapter: Pancreas 
  Loren DE, Etemad B, Kavanaugh B, Kowalski TE, Rogart JNEditors: Anthony DiMarino, Jr..Saunders, Philadelphia, PAEdition 9th,2010
• The Requisites in Gastroenterology 
  Chapter: Small Intestinal Endoscopy 
  Kowalski TE, Parks JEditors: Anil Rustgi.Mosby, Inc., Philadelphia, PA2004
• Gastrointestinal Disease: An Endoscopic Approach 
  Chapter: Endosurgery 
  Kowalski TE, Bailey MAEditors: DiMarino A, Benjamin S.Slack Incorporated, Thorofare, NJEdition 2nd,2002
• Gastrointestinal Disease: An Endoscopic Approach 
  Chapter: The Development of the Endoscope 
  Schuman BM, Kowalski TEEditors: DiMarino A, Benjamin S.Slack Incorporated, Thorofare, NJEdition 2nd,2002
• Practical Gastroenterology 
  Chapter: Endoscopic Advances in Gastroenterology: Introduction to a new series 
  Kowalski TE, DiMarino AJ2001
• Advances in Gastrointestinal Endoscopy, Practical Gastroenterology 
  Chapter: Endoscopic Treatment of Gastroesophageal Reflux disease 
  Aymerich R, Edmundowicz SEditors: Kowalski T, DiMarino A.2001
• Advances in Gastrointestinal Endoscopy, Practical Gastroenterology 
  Chapter: Endoscopic ultrasound: Its role in esophageal malignancy 
  Brugge W, Bounds BEditors: Kowalski T, DiMarino A.2001
• Advances in Gastrointestinal Endoscopy, Practical Gastroenterology 
  Chapter: Endoscopic mucosal resection-Applications in the upper gastrointestinal tract 
  Soekitno RM, Friedland S, Chang KJ, Inoue, HEditors: Soekitno RM, Friedland S, Chang KJ, Inoue, H.2001
• The Pocket Doctor 
  Chapter: Elevated liver enzymes 
  Kowalski TEEditors: Sherman M, Schulman E.Educational Communications, Mt. Kisco, New York1999
• The Pocket Doctor 
  Chapter: Right upper quadrant pain 
  Kowalski TEEditors: Sherman M, Schulman E.Educational Communications, Mt. Kisco, New York1999
• The Pocket Doctor 
  Chapter: Management of peptic ulcer disease 
  Kowalski TEEditors: Sherman M, Schulman E.Educational Communications, Mt. Kisco, New York1999
• Nitrendipine 
  Chapter: The effects of Nitrendipine on organ vasculature and baroreceptor reflexes 
  Taylor DG, Shoemaker S, Kowalski TEEditors: Scriabine A, Vanov S, Deck K.Urban & Schwarzenberg, Baltimore1984
• Calcium Entry Blockers, Adenosine, and Neurohumors 
  Chapter: Effects of Nimodipine, Verapamil, and Diltiazem on baroreceptor reflex-induced bradycardia in dogs 
  Taylor DG, Kowalski TEEditors: Merrill GF, Weiss HR.Urban & Schwarzenberg, Baltimore1983
• Nitrendipine. 
  Chapter: The effects of Nitrendipine on organ vasculature and baroreceptor reflexes 
  Page 311 - 326Taylor DG, Shoemaker S, Kowalski TEEditors: Scriabine A, Vanov S, Deck K.Urban & Schwarzenberg, Baltimore
• Calcium Entry Blockers, Adenosine, and Neurohumors. 
  Chapter: Effects of Nimodipine, Verapamil, and Diltiazem on baroreceptor reflex-induced bradycardia in dogs 
  Page 137 - 153Taylor DG, Kowalski TEEditors: Merrill GF, Weiss HR.Urban & Schwarzenberg, Baltimore
• Management of Localized Pancreatic Cancer in The Cancer Journal: The Journal of Principal and Practice of Oncology. 
  Chapter: Endoscopic Ultrasound and fine needle aspiration in pancreatic cancer. 
  Lewis J and Kowalski TEEditors: CJ Yeo, V. DeVita, T. Lawrence, S. Rosenberg.Lippincott, Williams, and Wilkins
• The Pocket Doctor. 
  Chapter: Elevated liver enzymes 
  Kowalski TEEditors: Sherman M, Schulman E.Educational Communications, Mt. Kisco, New York
• The Pocket Doctor. 
  Chapter: Right upper quadrant pain 
  Kowalski TEEditors: Sherman M, Schulman E.Educational Communications, Mt. Kisco, New York
• The Pocket Doctor. 
  Chapter: Management of peptic ulcer disease 
  Kowalski TEEditors: Sherman M, Schulman E.Educational Communications, Mt. Kisco, New York
• Gastroenterology: Introduction to a new series. 
  Chapter: Endoscopic Advances 
  Kowalski TE, DiMarino AJ
• Advances in Gastrointestinal Endoscopy, Practical Gastroenterology. 
  Chapter: Endoscopic Treatment of Gastroesophageal Reflux disease 
  Page 20 - 37Aymerich R, Edmundowicz SEditors: Kowalski T, DiMarino A.
• Advances in Gastrointestinal Endoscopy, Practical Gastroenterology. 
  Chapter: Experimental approaches to ablation of Barrett’s esophagus 
  Page 27 - 35Sharma P, Sampliner REditors: Kowalski T, DiMarino A.
• Advances in Gastrointestinal Endoscopy, Practical Gastroenterology. 
  Chapter: Endoscopic ultrasound: Its role in esophageal malignancy 
  Page 24 - 33Brugge W, Bounds BEditors: Kowalski T, DiMarino A.
• Advances in Gastrointestinal Endoscopy, Practical Gastroenterology. 
  Chapter: Esophageal dilation techniques 
  Page 45 - 57DeVita JJ, Reynolds JCEditors: Kowalski T, DiMarino A.
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Abstracts/Posters

• Rates of Adverse Events in Patients Undergoing Single-Operator PerOral Cholangioscopy and Pancreatoscopy
  Kistler CA, Francis G, Kowalski TE, Loren DE, Korenblit J, Adler DG, Eloubeidi MA, Siddiqui AA, Gastrointestinal Endoscopy, 1/1/2014
• Migration Rates of Wallflex Fully-Covered Self-Expanding Metal Stent (FCSEMS) in Malignant and Benign Disease
  Korenblit J, Matro R, Siddiqui AA, Coben RM, Conn M, Loren DE, Kowalski TE, Gastrointestinal Endoscopy, 1/1/2014
• High Risk of Acute Pancreatitis After Endoscopic Ultrasound-Guided Fine Needle Aspiration of Side Branch Intraductal Papillary Mucinous Neoplasms
  Shah A, Khurana T, Eloubeidi MA, Adler DG, Loren DE, Kowalski TE, Korenblit J, Siddiqui AA, Gastrointestinal Endoscopy, 1/1/2014
• A Trial of Rectal Indomethacin to Prevent Post-ERCP Pancreatitis in Patients With Sphincter of Oddi Dysfunction Type 3
  Kaplan JH, Zabolotsky AH, Kowalski TE, Loren DE, Korenblit J, Adler DG, Eloubeidi MA, Siddiqui AA, Gastrointestinal Endoscopy, 1/1/2014
• Clinical Utility of Using Second-Line Integrated Molecular Pathology Testing in Addition to First-Line Test Algorithms to Determine the Malignant Potential of Pancreat...
  Kowalski TE, Loren DE, Siddiqui AA, Mertz H, Mallat D, Haddad N, Malhotra N, Sadowski B, et.al, Gastrointestinal Endoscopy, 1/1/2014
• Comparison of the Influence of Plastic and Fully Covered Metal Biliary Stents on the Accuracy of EUS-FNA for the Diagnosis of Pancreatic Cancer
  Siddiqui AA, Fein M, Kowalski TE, Loren DE, Eloubeidi MA, Gastrointestinal Endoscopy, 1/1/2012
• Fully covered self-expanding metal stents for remodeling of refractory pancreatic duct strictures: a multicenter experience
  Diehl DL, Siddiqui AA, Stavropoulos SN, Kowalski TE, Nguyen VH, Hashem HJ, Gastrointestinal Endoscopy, 1/1/2012
• Safety of an Endoscopic Bipolar Radiofrequency Probe in the Management of Malignant Biliary Strictures: A Single Center Experience
  Lewis J, Mehendiratta V, Korenblit J, Siddiqui AA, Kowalski TE, Loren DE, Gastrointestinal Endoscopy, 1/1/2012
• Placement of Fully-Covered Self-Expandable Metal Stents in Patients with Locally Advanced Esophageal Cancer Prior to Neoadjuvant Therapy
  Siddiqui AA, Sarkar A, Beltz SK, Lewis J, Loren DE, Kowalski TE, Fang JC, Hilden K, Adler DG, Gastrointestinal Endoscopy, 1/1/2012
• Utility of the Double-Balloon Colonoscope (DBC) to Perform Pancreaticobiliary Interventions in Patients with Altered Surgical Anatomy
  Shelton CE, Marmion J, Kowalski TE, Loren DE, Lewis J, Siddiqui AA, Gastrointestinal Endoscopy, 1/1/2012
• Cyst Wall Puncture and Aspiration During Endoscopic Ultrasound-Guided Fine Needle Aspiration Increases the Diagnostic Yield of Pre-malignant and Malignant Pancreatic C...
  Hong SS, Siddiqui AA, Bibbo M, Andrel JA, Coben RM, Kowalski TE, Loren DE, Gastrointestinal Endoscopy, 1/1/2011
• False Positive Endoscopic Ultrasound Guided Fine Needle Aspiration Cytology for Solid Pancreatic Lesions
  Shahid H, O'Donnell S, Tolin J, Kowalski TE, Loren DE, Infantolino A, Eloubeidi MA, Siddiqui AA, Gastrointestinal Endoscopy, 1/1/2011
• Relationship of Pancreatic Mass Size and Diagnostic yield of Endoscopic Ultrasound Guided Fine Needle Aspiration
  Hong SS, Brown LJ, Draganova-Tacheva RA, Korenblit J, Loren DE, Kowalski TE, Solomides C, Siddiqui AA, Gastrointestinal Endoscopy, 1/1/2011
• Evaluation of a Fully Covered Self-Expanding Metal Stent in Malignant Biliary Obstruction: Follow-up of a Multi-Center Study
  Talreja JP, Loren DE, Kowalski TE, Stevens PD, Poneros JM, Chow MA, Raijman I, Sejpal DV, Patel S, Rosenkranz L, McNamara KN, Brijbassie A, Wang AY, Gaidhane M, Sethi ..., Gastrointestinal Endoscopy, 1/1/2011
• Use of Fully Covered Self Expanding Metal Stents (FCSEMS) in the management of Benign Biliary Diseases (BBD)
  Brijbassie A, Stevens PD, Sethi A, Sejpal DV, Raijman I, Loren DE, Kowalski TE, Patel S, Poneros JM, Talreja JP, Sauer BG, Kahaleh M, Gastrointestinal Endoscopy, 1/1/2010
• Evaluation of a novel method for measuring CEA levels from pancreas cyst aspirates
  Katukuri VK, Andrade D, Loren DE, Kowalski TE, Gastrointestinal Endoscopy, 1/1/2010
• Incremental diagnostic yield of on-site quick-prep smear versus cell-block cytology in EUS-FNA of solid and cystic masses
  Rogart JN, Orfanidis N, Korenblit J, Coben R, Infantolino A, Kowalski TE, Loren DE, American Journal of Gastroenterology, 1/1/2009
• Diagnostic yield and safety of cyst wall puncture during EUS-guided fine needle aspiration of pancreatic cystic lesions
  Singhu B, Kowalski TE, Loren DE, Gastrointestinal Endoscopy, 1/1/2008
• Clinical applications of the Spyglass direct visualization system: a multicenter experience
  Loren DE, Kowalski TE, Conn M, Singu B, Haluszka O, Tokar JI, Shen E, Ben-Menachem T, Gastrointestinal Endoscopy, 1/1/2008
• Post-sphincterotomy transampullary balloon dilation is not associated with an increased incidence of post-ERCP pancreatitis
  Nathwani RA, Banwait K, Salese L, Assis D, Loren D, Kowalski T, Gastrointestinal Endoscopy, 1/1/2007
• Characteristics of juxtapapillary duodenal diverticula (JPDD) in patients undergoing ERCP at a tertiary care center
  Banwait KS, Sanaka MR, Spodik M, Salese L, Thaker KM, Loren D, Kowalski T, Gastrointestinal Endoscopy, 1/1/2006
• Success of Argon Plasma Coagulation for Management of Gastric Antral Vascular Ectasia
  Sanaka M, Banwait K, Salese L, Kowalski T, Loren D, Gastroenterology, 1/1/2006
• A Randomized Multicenter Trial Comparing Plastic to Covered Metal Stents for the Palliation of Lower Malignant Biliary Obstruction
  Moses PL, Barkun AN, Gordon SR, Mitty RD, Branch S, Kowlski TE, Gastrointestinal Endscopy, 1/1/2005
• Endoscopic Sphincterotomy With or Without Cholecystectomy for Choledocholithiasis in High Risk Surgical Patients: A Decision Analysis
  Siddiqui A, Mitroo P, Kowalski TE, Loren DE, Gastroenterology, 1/1/2005
• Comparison of Endoscopic Retrograde Cholangiopancreatography (ERCP) and Magnetic Resonance Cholangiopancreatography (MRCP) in the Determination of Common Bile Duct (CB...
  Thaker KM, Banwait K, Loren DE, Kowalski TE, Gastroenterology, 1/1/2005
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Lectures

• Efficiency in Endoscopy 
  11/10/2013
• Biliary Stents and Strictures 
  10/19/2013
• Approach to the Patient with a Pancreatic Cystic Lesion 
  6/22/2013
• Quality and safety in sedation and monitoring 
  6/8/2013
• Multi-disciplinary Approach to the Management of Chronic Pancreatitis 
  5/19/2013
• First Annual Jefferson Pancreas and Related Cancer CME Symposium 
  4/21/2012
• Obstructive Jaudice: To Stent or Not to Stent 
  11/18/2011
• Obstructive Jaundice. New stents for new indications 
  11/12/2010
• Cystic diseases of the pancreas 
  6/26/2010
• The role of endoscopy in the diagnosis and therapy of pancreatic cancer 
  6/23/2010
• The incidental pancreatic cyst 
  5/13/2009
• Pancreatitis Update 
  11/19/2008
• The role of endoscopy in the diagnosis of pancreatic cancer 
  11/1/2008
• Electrocautery 
  10/7/2007
• Introduction to Endoscopy 
  8/8/2007
• Evaluation of the Incidental Pancreatic Cyst 
  6/16/2007
• Management of malignant biliary obstruction 
  2/14/2007
• Advances in pancreatitis 
  12/6/2006
• Cannulating the papilla 
  11/9/2006
• Access to the desired duct 
  7/22/2006
• Endoscopic Mucosal Resection 
  11/5/2005
• Innovations in Endoscopy 
  4/12/2005
• Management of Pancreatic Pseudocysts 
  2/24/2005
• The use of guidewires during ERCP 
  2/1/2005
• Evaluation of Pancreatic Masses 
  8/14/2004
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Other

• Endoscopic Ultrasound of a Gastric Ulcer. 
  Kowalski T, Digital Atlas of Video Endoscopy
  http://daveproject.org/
• Acute Pancreatitis. 
  Kowalski T, CME Lecture for the Graduate Education Foundation
  http://www.ceulectures.org/
• Dilation Assisted Stone Extraction. 
  Kowalski T, Haluszka O, Tokar J, Boston Scientific Corporation
• Wire Guided Cannulation Technique Guide. 
  Kowalski T, Edmundowicz S, Stevens P, Boston Scientific Corporation
• Biliary Metal Stenting: an overview and case studies. 
  Kowalski T
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