Positions

Overview

  • Dr. Ahmed came to UAB in November 2015 as an Assistant Professor of Medicine in Interventional Endoscopy in the Basil I. Hirschowitz Center of Endoscopic Excellence. He received his training in Advanced Endoscopy at Yale University after completing his fellowship in gastroenterology at SUNY Downstate Medical Center and residency in internal medicine at Columbia University.  He obtained his medical degree at SUNY Buffalo. He serves as the Director of Advanced GI at UAB's Pancreatobiliary Disease Center. His research and clinical interests include the management of complex pancreatobiliary diseases and cancer, walled off pancreatic necrosis, pancreatic cysts, obesity, management of fistulas, perforations and leaks as well as awareness of pancreatic and colon cancer.

    • Selected Publications

    Academic Article

    Year Title Altmetric
    2022 Peutz-Jeghers polypectomy in the small bowel using ligate-and-let-go technique.  Endoscopy.  54:E558-E559. 2022
    2022 S1136 Endoscopic Ultrasound Guided Biliary Drainage and Percutaneous Transhepatic Biliary Drainage Provide Successful Salvage Biliary Drainage in Biliary Obstruction From Pancreatic Cancer: A Single Center Experience.  American Journal of Gastroenterology.  117:e828-e828. 2022
    2022 S1155 Early Intervention With Double Balloon Enteroscopy Has Higher Yield for Inpatient Overt Obscure Gastrointestinal Bleeding.  American Journal of Gastroenterology.  117:e841-e842. 2022
    2022 S2901 Afferent Limb Syndrome Treated With Non-Cautery-Enhanced Lumen Apposing Metal Stent: An Alternate Approach.  American Journal of Gastroenterology.  117:e1888-e1889. 2022
    2022 S292 Socioeconomic Status: An Important Determinant for Follow-Up for Surveillance Colonoscopy After Endoscopic Mucosal Resection.  American Journal of Gastroenterology.  117:e211-e212. 2022
    2022 S365 A Palliative Approach: Stenting a Malignant Duodenocolonic Fistula in a Patient With Two Primary Malignancies.  American Journal of Gastroenterology.  117:e258-e258. 2022
    2022 S367 Endoscopic Eversion and Stent-Assisted Strangulation for the Management of an Intraductal Papillary Neoplasm of the Bile Duct: A Minimally Invasive Technique for Non-Surgical Candidates.  American Journal of Gastroenterology.  117:e259-e259. 2022
    2022 S633 The Association of Patient Demographics and Socioeconomic Status With Advanced Neoplasia in Endoscopic Mucosal Resection.  American Journal of Gastroenterology.  117:e438-e439. 2022
    2022 Direct percutaneous endoscopic jejunostomy tube placement in patients post Roux-en-Y gastric bypass, a single tertiary care center experience..  Endoscopy International Open.  10:E1282-E1290. 2022
    2022 Role of balloon enteroscopy for obscure gastrointestinal bleeding in those with surgically altered anatomy: A systematic review..  World Journal of Gastrointestinal Endoscopy.  14:434-442. 2022
    2022 FIRST US EXPERIENCE OF A NEW NOVEL DISPOSABLE DUODENOSCOPE FOR ERCP IN LIVER TRANSPLANT RECIPIENTS.  Gastrointestinal Endoscopy.  95:ab335-ab336. 2022
    2022 PREDICTIVE FACTORS OF GASTROINTESTINAL BLEED FOLLOWING DOUBLE BALLOON ENDOSCOPY IN THOSE WITH SURGICALLY ALTERED ANATOMY FROM A LARGE TERTIARY CENTER COHORT.  Gastrointestinal Endoscopy.  95:ab57. 2022
    2022 RESULTS WITH A NEW SINGLE-USE DUODENOSCOPE IN NON-EMERGENT ERCPS.  Gastrointestinal Endoscopy.  95:ab330-ab331. 2022
    2022 SAFETY AND EFFICACY OF DIRECT PERCUTANEOUS ENDOSCOPIC JEJUNOSTOMY TUBE PLACEMENT COMPARED WITH SURGICAL JEJUNOSTOMY - A TERTIARY CARE ANALYSIS..  Gastrointestinal Endoscopy.  95:ab440-ab441. 2022
    2022 Enterocutaneous fistula closure using a balloon-assisted enteroscope preloaded with an over-the-scope clip - Narrowing the gap.  Endoscopy.  54:E158-E159. 2022
    2022 New and emerging technology in the diagnosis and treatment of pancreatic cysts.  Translational gastrointestinal cancer.  7. 2022
    2022 Extreme endoscopy: Direct jejunostomy, re-anastomosis of bowel, percutaneous assisted transprosthetic endoscopic drainage in Roux-en-Y gastric bypass.  Endoscopy.  54:E13-E14. 2022
    2021 Impact of COVID-19 on gastroenterology fellowship training: a multicenter analysis of endoscopy volumes..  Endoscopy International Open.  9:E1572-E1578. 2021
    2021 S980 Point of Care Gastric Ultrasound for Predicting Residual Gastric Content and Risk of Aspiration in Ambulatory Patients for Advanced Endoscopy Procedures.  American Journal of Gastroenterology.  116:s468-s469. 2021
    2021 New and Emerging Technology in the Diagnosis and Treatment of Pancreatic Cysts.  Translational Gastroenterology and Hepatology.  1-9. 2021
    2021 ID: 3526606 FEASIBILITY OF BEDSIDE GASTRIC ULTRASOUND AS A PRE-PROCEDURE PREDICTOR FOR RESIDUAL GASTRIC CONTENTS AND SAFE ANESTHESIA AIRWAY MANAGEMENT PLAN IN AMBULATORY PATIENTS FOR ADVANCED ENDOSCOPY PROCEDURES.  Gastrointestinal Endoscopy.  93:ab38. 2021
    2021 ID: 3527213 THIRD SPACE ENDOSCOPY AFTER FORMAL ENDOSCOPY ADVANCED FELLOWSHIP TRAINING IN THE US: ONE YEAR LINEAR FOLLOW UP OF INDEPENDENT PRACTICE.  Gastrointestinal Endoscopy.  93:ab281. 2021
    2021 New and emerging technology in the diagnosis and treatment of pancreatic cysts.  Translational gastrointestinal cancer.  0:0-0. 2021
    2020 Endoscopic therapy for bleeding small-bowel venous malformations.  Videogie.  5:492-493. 2020
    2020 S1306 Outcomes of Enteroscopy-Assisted Direct Percutaneous Endoscopic Jejunostomy (DPEJ) Tube Placement – A Single Center Experience.  American Journal of Gastroenterology.  115:s655-s656. 2020
    2020 Sa1278 THIRD SPACE ENDOSCOPY AFTER FORMAL ENDOSCOPY ADVANCED FELLOWSHIP TRAINING IN THE US: IS IT TIME FOR ESTABLISHED TRAINING?.  Gastrointestinal Endoscopy.  91:ab146. 2020
    2020 Sa1400 EXPERIENCE WITH ENDOROTOR-XT FOR ENDOSCOPIC NECROSECTOMY IN PATIENTS WITH ACUTE NECROTIC PANCREATITIS AT A TERTIARY CARE CENTER.  Gastrointestinal Endoscopy.  91:ab173. 2020
    2020 Su1426 TACROLIMUS: A POTENTIAL NOVEL THERAPY TO PREVENT POST-ERCP PANCREATITIS.  Gastrointestinal Endoscopy.  91:ab340. 2020
    2020 Su1541 DIAGNOSIS OF BILIARY STRICTURES USING SPYGLASS DIRECTED BIOPSIES – INTENTION TO TREAT ANALYSIS AT A TERTIARY CARE CENTER.  Gastrointestinal Endoscopy.  91:ab371-ab372. 2020
    2020 Endoscopic ultrasound-guided drainage of pancreatic walled-off necrosis using 20-mm versus 15-mm lumen-apposing metal stents: An international, multicenter, case-matched study.  Endoscopy.  52:211-219. 2020
    2019 Su1241 CASE SERIES OF EUS-GUIDED BILIARY DRAINAGE AS A NEWLY ADOPTED TECHNIQUE FOR BILIARY OBSTRUCTION IN A TERTIARY CARE CENTER.  Gastrointestinal Endoscopy.  89:ab329. 2019
    2019 Safety and efficacy of the use of lumen-apposing metal stents in the management of postoperative fluid collections: A large, international, multicenter study.  Endoscopy.  51:715-721. 2019
    2018 Additive Benefit of Confocal Laser Endomicroscopy and Micro-Forceps Needle Biopsy in the Evaluation of a Mucinous Cystic Neoplasm.  American Journal of Gastroenterology.  113:s793. 2018
    2018 Case Series of EUS Guided Biliary Drainage as a Newly Adopted Technique for Biliary Obstruction in a Tertiary Care Center.  American Journal of Gastroenterology.  113:s449. 2018
    2018 EUS-Guided Biliary Drainage as an Alternative to ERCP in Patients With Biliary Obstruction.  American Journal of Gastroenterology.  113:s969. 2018
    2018 From Above and Below: Double-Balloon Enteroscopy in a Small Intestine Gastrointestinal Stromal Tumor With Excessive Bleeding.  American Journal of Gastroenterology.  113:s1209-s1210. 2018
    2018 Metastatic Small Bowel Melanoma Presenting as Gastrointestinal Blood Loss: A Case Report.  American Journal of Gastroenterology.  113:s1423. 2018
    2018 112 “BAND AND LEAVE” STRATEGY: A CASE SERIES COMPARISON OF BANDING VS. ENDOSCOPIC RESECTION FOR MANAGEMENT OF SMALL DUODENAL CARCINOID.  Gastrointestinal Endoscopy.  87:ab51. 2018
    2018 Tu1554 - Development of an Endoscopic Classification System for Gastric Antral Vascular Ectasia: The Birmingham Classification.  Gastroenterology.  154:s-1249-s-1250. 2018
    2018 Molecular analysis of pancreatic cyst fluid changes clinical management..  Endoscopic Ultrasound.  7:29-33. 2018
    2017 Fine-needle aspiration findings of a rare hematopoietic neoplasm presenting as obstructive jaundice.  Diagnostic Cytopathology.  45:1142-1147. 2017
    2017 A rare finding of colonic malakoplakia.  Practical gastroenterology.  41:52-66. 2017
    2017 Overtube-assisted EUS with FNA for esophageal stenosis.  Gastrointestinal Endoscopy.  86:243-244. 2017
    2017 Overtube-assisted EUS with FNA for esophageal stenosis.  Videogie.  2:141-142. 2017
    2017 Endoscopic retrograde cholangiopancreatography cannulation in the difficult duct: Which technique should you pull out of your bag?.  Digestive Endoscopy.  29:149-151. 2017
    2016 Endoscopic removal of a mesh penetrating into the esophagus using overtube-assisted endoscopy, fully covered metal stent, and over-the-scope clip.  Gastrointestinal Endoscopy.  84:523. 2016
    2016 Confocal laser endomicroscopy features of sessile serrated adenomas/polyps..  United European Gastroenterology Journal.  4:599-603. 2016
    2015 Is Advanced Endoscopy Training Worth It?.  Clinical Gastroenterology and Hepatology.  13:1218-1220. 2015
    2003 Living donor liver transplantation in a patient with hepatic epithelioid hemangioendothelioma [2].  Journal of Clinical Gastroenterology.  37:349-350. 2003
    2003 Prophylaxis against chemotherapy-induced reactivation of hepatitis B virus infection with lamivudine.  Journal of Clinical Gastroenterology.  37:68-71. 2003
    1991 Evidence for proximal control of ligand specificity in hemeproteins: Absorption and Raman studies of cryogenically trapped photoproducts of ligand bound myoglobins.  Chemical Physics.  158:329-351. 1991

    Research Overview

  • Therapeutic endoscopy
    Pancreatobiliary Cancer
    Pancreatic Necrosis
    Pancreatic Cysts
    Ergonomics
    Endohepatology

    • Principal Investigator On

    Investigator On

    Education And Training

  • North Shore University Hospital Medicine, Internship
  • NYP/Columbia University Medical Center Medicine, Residency
  • SUNY Downstate Medical Center, Postdoctoral Fellowship
  • Yale University School of Medicine School of Medicine, Postdoctoral Fellowship
  • Doctor of Medicine, State University of New York System : Buffalo 2008

    • Awards And Honors

    Full Name

  • Ali Ahmed