Ibrahim Nassour

Ibrahim Nassour, MD, MSCS

Assistant Professor

Business Phone: (352) 594-5132
Business Email: ibrahimnassour@ufl.edu

About Ibrahim Nassour

Ibrahim Nassour, MD, MSCS is an assistant professor, with the Division of Surgical Oncology at the University of Florida College of Medicine. At UF Health, Dr. Nassour specializes in surgeries for cancers of the gastrointestinal tract, pancreas, liver and bile duct. He has special interest in robotic pancreato-biliary surgery including robotic pancreaticoduodenectomy (Whipple procedure) and in regional therapies for metastatic disease.

Dr. Nassour earned his medical degree from the American University of Beirut where he was inducted into the Alpha Omega Alpha Honor Medical Society. He completed his general surgery residency at the Johns Hopkins University School of Medicine and the University of Texas Southwestern Medical Center. During his training, he pursued a postdoctoral research fellowship and received a master’s degree in clinical and translational science. Most recently Dr. Nassour received advanced training in complex general surgical oncology at the University of Pittsburgh Medical Center.

Dr. Nassour’s research focuses on comparative effectiveness studies that evaluate the role of minimally invasive and robotic surgery as well as the role of neoadjuvant therapy in the management of pancreato-biliary cancers. In addition, he is interested in designing clinical trials that incorporate liquid biopsies and adaptive neoadjuvant therapies in the management of pancreato-biliary malignancies with the goal to improve and optimize the care of cancer patients. His research has been published in multiple peer-reviewed journals and books.

Dr. Nassour is board certified surgeon by the American Board of Surgery. He is a member of the Association for Academic Surgery, the Society of Surgical Oncology, the Americas Hepato-Pancreato-Biliary Association and the American College of Surgeons.


Finalist for the clinical poster award
2018 · Society of Surgical Oncology
Winner of the ACS surgical skill competition
2018 · American College of Surgeons
Award for best basic/translational research poster
2017 · Society of Surgical Oncology
Award for best oncology paper
2017 · North and south chapters of the American College of Surgeons
Award for best oral presentation: runner-up
2017 · 36th annual Parkland surgical society meeting
Alpha Omega Alpha postgraduate award
2016 · Alpha Omega Alpha
Award for best oral presentation
2016 · Surgery Research Day, UT Southwestern
Award for best oral presentation: runner-up
2012 · o Tenth Annual Richard L. Simmons Lecture and Department of Surgery Research Day, University of Pittsburgh
Naji Sahyoun Memorial Award
2011 · American University of Beirut
Alpha Omega Alpha Society
2010 · American University of Beirut

Board Certifications

  • Surgery
    American Board of Surgery

Clinical Profile

  • Cancer
  • Surgical Oncology
Areas of Interest
  • Cancer – resources
  • Cancer treatment information
  • Cholangiocarcinoma
  • Gastrointestinal Oncology Surgery
  • Gastrointestinal cancer
  • Inflammatory bowel disease
  • Liver metastases
  • Pancreatic cancer
  • Pancreatitis
  • Robotic surgery

Research Profile

Open Researcher and Contributor ID (ORCID)


Areas of Interest
  • Adrenal tumors
  • Extrahepatic cholangiocarcinoma
  • GIST
  • Gastric cancer
  • Laparoscopic surgery
  • Liquid biopsies
  • Liver metastasis- colorectal, neuroendocrine and other non-colorectal non-neuroendocrine metastasis
  • Neoadjuvant therapy in the management of pancreato-biliary cancers
  • Pancreatic cyst (Cystadenoma, Mucinous Cystic Neoplasm, Intraductal Papillary Mucinous Neoplasm)
  • Pancreatic neuroendocrine
  • Peritoneal surface malignancies
  • Small bowel cancer


A phase II study of neoadjuvant liposomal irinotecan with 5-FU and oxaliplatin (NALIRIFOX) in pancreatic adenocarcinoma.
Future oncology (London, England). 19(27):1841-1851 [DOI] 10.2217/fon-2023-0256. [PMID] 37753702.
A protein-based machine learning approach to the identification of inflammatory subtypes in pancreatic ductal adenocarcinoma
Pancreatology. 23(6):615-621 [DOI] 10.1016/j.pan.2023.06.007. [PMID] 37391359.
Appendectomy Is Oncologically Equivalent to Right Hemicolectomy for Well-Differentiated T1 Appendiceal Adenocarcinoma.
Diseases of the colon and rectum. 66(1):67-74 [DOI] 10.1097/DCR.0000000000002089. [PMID] 34508015.
Changing Practice Patterns and Improving Survival for Patients with Pancreatic Ductal Adenocarcinoma
Cancers. 15(18) [DOI] 10.3390/cancers15184464. [PMID] 37760433.
Impact of Biopsy Attempts, Race, and Access on Time to Initiation of Treatment for Pancreatic Cancer.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 27(11):2474-2483 [DOI] 10.1007/s11605-022-05531-6. [PMID] 37740146.
Impact of Extended Antibiotic Use After Pancreaticoduodenectomy for Patients with Preoperative Metallic Biliary Stenting Treated with Neoadjuvant Chemotherapy.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 27(4):716-723 [DOI] 10.1007/s11605-023-05581-4. [PMID] 36650416.
Importance of carbohydrate antigen (CA 19-9) and carcinoembrionic antigen (CEA) in the prognosis of patients with duodenal adenocarcinoma: a retrospective single-institution cohort study.
Oncotarget. 14:351-357 [DOI] 10.18632/oncotarget.28406. [PMID] 37068159.
Low vs Standard-Dose Indocyanine Green in the Identification of Biliary Anatomy Using Near-Infrared Fluorescence Imaging: A Multicenter Randomized Controlled Trial.
Journal of the American College of Surgeons. 236(4):711-717 [DOI] 10.1097/XCS.0000000000000553. [PMID] 36728303.
National adoption of neoadjuvant chemotherapy: paradigm shift in the treatment of pancreatic cancer
HPB. 25(11):1323-1328 [DOI] 10.1016/j.hpb.2023.06.018.
Pancreaticoduodenectomy for benign and premalignant pancreatic and ampullary disease: is robotic surgery the better approach?
Surgical endoscopy. 37(2):1157-1165 [DOI] 10.1007/s00464-022-09632-w. [PMID] 36138252.
Prognosis and Treatment Outcomes of Bone Metastasis in Gallbladder Adenocarcinoma: A SEER-Based Study
Cancers. 15(20) [DOI] 10.3390/cancers15205055. [PMID] 37894422.
Robotic Pancreaticoduodenectomy: Increased Adoption and Improved Outcomes: Is Laparoscopy Still Justified?
Annals of surgery. 278(3):e563-e569 [DOI] 10.1097/SLA.0000000000005687. [PMID] 36000753.
The risk of clinically-relevant pancreatic fistula after pancreaticoduodenectomy is better predicted by a postoperative trend in drain fluid amylase compared to day 1 values in isolation.
Surgery. [DOI] 10.1016/j.surg.2023.06.009. [PMID] 37468367.
The use of angiotensin system inhibitors correlates with longer survival in resected pancreatic adenocarcinoma patients.
HPB : the official journal of the International Hepato Pancreato Biliary Association. 25(3):320-329 [DOI] 10.1016/j.hpb.2022.12.002. [PMID] 36610939.
Adaptive Dynamic Therapy and Survivorship for Operable Pancreatic Cancer.
JAMA network open. 5(6) [DOI] 10.1001/jamanetworkopen.2022.18355. [PMID] 35737385.
Arid1a loss potentiates pancreatic β-cell regeneration through activation of EGF signaling.
Cell reports. 41(5) [DOI] 10.1016/j.celrep.2022.111581. [PMID] 36323264.
Chemotherapy is associated with improved survival in a national cohort of stage IV pancreatic adenosquamous carcinoma.
Journal of gastrointestinal oncology. 13(6):3207-3215 [DOI] 10.21037/jgo-22-434. [PMID] 36636088.
Clinical Trials in Hepatopancreatobiliary Surgery: Assessing Trial Characteristics, Early Discontinuation, Result Reporting, and Publication.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 26(8):1628-1636 [DOI] 10.1007/s11605-022-05387-w. [PMID] 35713764.
From bench to bedside: Pursuing equity in precision medicine approaches to pancreatic cancer care.
Frontiers in oncology. 12 [DOI] 10.3389/fonc.2022.1086779. [PMID] 36568255.
Lenvatinib inhibits the growth of gastric cancer patient-derived xenografts generated from a heterogeneous population.
Journal of translational medicine. 20(1) [DOI] 10.1186/s12967-022-03317-7. [PMID] 35255940.
Novel Calculator to Estimate the Risk of Clinically Relevant Postoperative Pancreatic Fistula Following Distal Pancreatectomy.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 26(7):1436-1444 [DOI] 10.1007/s11605-022-05275-3. [PMID] 35352209.
The Role of Adjuvant Chemotherapy Following Right Hemicolectomy for Non-metastatic Mucinous and Nonmucinous Appendiceal Adenocarcinoma
Journal of Gastrointestinal Surgery. 26(1):171-180 [DOI] 10.1007/s11605-021-05076-0.
Transanal excision with adjuvant therapy for pT1N0 rectal tumors with high-risk features offers equivalent survival to radical resection: A National Cancer Database analysis.
Journal of surgical oncology. 125(3):475-483 [DOI] 10.1002/jso.26734. [PMID] 34705273.
A National Assessment of Optimal Oncologic Surgery for Distal Pancreatic Adenocarcinomas.
Pancreas. 50(3):386-392 [DOI] 10.1097/MPA.0000000000001786. [PMID] 33835970.
ASO Author Reflections: Use of a National Database to Determine the Optimal Surgical Intervention for a Rare Appendiceal Cancer.
Annals of surgical oncology. 28(13):8926-8927 [DOI] 10.1245/s10434-021-10310-9. [PMID] 34159475.
Association Between Medicaid Expansion and Diagnosis and Management of Colon Cancer.
Journal of the American College of Surgeons. 232(2):146-156.e1 [DOI] 10.1016/j.jamcollsurg.2020.10.021. [PMID] 33242599.
Borderline Resectable and Locally Advanced Pancreatic Cancers: A Review of Definitions, Diagnostics, Strategies for Treatment, and Future Directions.
Pancreas. 50(9):1243-1249 [DOI] 10.1097/MPA.0000000000001924. [PMID] 34860806.
Encouraging long-term survival following autophagy inhibition using neoadjuvant hydroxychloroquine and gemcitabine for high-risk patients with resectable pancreatic carcinoma.
Cancer medicine. 10(20):7233-7241 [DOI] 10.1002/cam4.4211. [PMID] 34559451.
Impact of Resection Margin Status in Patients with Pancreatic Cancer: a National Cohort Study.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 25(9):2307-2316 [DOI] 10.1007/s11605-020-04870-6. [PMID] 33269460.
Medicaid expansion and the management of pancreatic cancer
Journal of Surgical Oncology. 124(3):324-333 [DOI] 10.1002/jso.26515. [PMID] 33939838.
Minimally Invasive Techniques for Pancreatic Resection.
Surgical oncology clinics of North America. 30(4):747-758 [DOI] 10.1016/j.soc.2021.06.007. [PMID] 34511194.
National Trends in Robotic Pancreas Surgery.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 25(4):983-990 [DOI] 10.1007/s11605-020-04591-w. [PMID] 32314230.
Neoadjuvant Chemotherapy for Pancreatic Adenocarcinoma Lessens the Deleterious Effect of Omission of Adjuvant Chemotherapy.
Annals of surgical oncology. 28(7):3800-3807 [DOI] 10.1245/s10434-020-09446-x. [PMID] 33386547.
Neoadjuvant therapy versus upfront surgery for early‐stage left‐sided pancreatic adenocarcinoma: A propensity‐matched analysis from a national cohort of distal pancreatectomies
Journal of Surgical Oncology. 123(1):245-251 [DOI] 10.1002/jso.26267.
Omission of Right Hemicolectomy May be Safe for Some Appendiceal Goblet Cell Adenocarcinomas: A Survival Analysis of the National Cancer Database.
Annals of surgical oncology. 28(13):8916-8925 [DOI] 10.1245/s10434-021-10191-y. [PMID] 34409541.
Pathologic Complete Response Following Neoadjuvant Therapy for Gastric Adenocarcinoma: A National Cancer Database Analysis on Incidence, Predictors, and Outcomes.
The American surgeon. 87(7):1145-1154 [DOI] 10.1177/0003134820972083. [PMID] 33342268.
Patient Factors Limit Colon Cancer Survival at Safety-Net Hospitals: A National Analysis.
The Journal of surgical research. 264:279-286 [DOI] 10.1016/j.jss.2021.03.012. [PMID] 33839343.
Perioperative and oncologic outcomes of open, laparoscopic, and robotic distal pancreatectomy for pancreatic adenocarcinoma.
Updates in surgery. 73(3):947-953 [DOI] 10.1007/s13304-020-00927-y. [PMID] 33394353.
Predictors of early recurrence following neoadjuvant chemotherapy and surgical resection for localized pancreatic adenocarcinoma
Journal of Surgical Oncology. 124(3):308-316 [DOI] 10.1002/jso.26510. [PMID] 33893740.
Safety and oncologic efficacy of robotic compared to open pancreaticoduodenectomy after neoadjuvant chemotherapy for pancreatic cancer
Surgical Endoscopy. 35(5):2248-2254 [DOI] 10.1007/s00464-020-07638-w.
The Role of Adjuvant Chemotherapy in Non-Metastatic Goblet Cell Carcinoid of the Appendix: An 11-Year Experience from the National Cancer Database.
Annals of surgical oncology. 28(7):3873-3881 [DOI] 10.1245/s10434-020-09389-3. [PMID] 33231767.
Hispanic/Latino Patients with Gastric Adenocarcinoma Have Distinct Molecular Profiles Including a High Rate of Germline CDH1 Variants
Cancer Research. 80(11):2114-2124 [DOI] 10.1158/0008-5472.can-19-2918.
Long‐term oncologic outcomes of robotic and open pancreatectomy in a national cohort of pancreatic adenocarcinoma
Journal of Surgical Oncology. 122(2):234-242 [DOI] 10.1002/jso.25958.
Long‐term survival following minimally invasive extended cholecystectomy for gallbladder cancer: A 7‐year experience from the National Cancer Database
Journal of Surgical Oncology. 122(4):707-715 [DOI] 10.1002/jso.26062.
Predictors and outcomes of converted minimally invasive pancreaticoduodenectomy: a propensity score matched analysis.
Surgical endoscopy. 34(2):544-550 [DOI] 10.1007/s00464-019-06792-0. [PMID] 31016458.
Successful Mentor-Mentee Relationship.
The Journal of surgical research. 247:332-334 [DOI] 10.1016/j.jss.2019.09.066. [PMID] 31733816.
Laparoscopic Cholecystectomy is Safe Both Day and Night.
The Journal of surgical research. 233:163-166 [DOI] 10.1016/j.jss.2018.07.071. [PMID] 30502243.
Mitotic regulators and the SHP2-MAPK pathway promote IR endocytosis and feedback regulation of insulin signaling.
Nature communications. 10(1) [DOI] 10.1038/s41467-019-09318-3. [PMID] 30931927.
SWI/SNF component ARID1A restrains pancreatic neoplasia formation.
Gut. 68(7):1259-1270 [DOI] 10.1136/gutjnl-2017-315490. [PMID] 30315093.
Adjuvant Therapy Is Associated With Improved Survival in Resected Perihilar Cholangiocarcinoma: A Propensity Matched Study.
Annals of surgical oncology. 25(5):1193-1201 [DOI] 10.1245/s10434-018-6388-7. [PMID] 29488187.
Adoption of evidence‐based novel therapies in the treatment of gastric cancer: A national observational study
Cancer. 124(6):1122-1131 [DOI] 10.1002/cncr.31179.
Arid1a Has Context-Dependent Oncogenic and Tumor Suppressor Functions in Liver Cancer.
Cancer cell. 33(1):151-152 [DOI] 10.1016/j.ccell.2017.12.011. [PMID] 29316428.
ASO Author Reflections: Use of Retrospective Administrative Datasets in Rare Cancer Subtypes to Determine the Efficacy of Adjuvant Therapy.
Annals of surgical oncology. 25(Suppl 3):798-799 [DOI] 10.1245/s10434-018-7031-3. [PMID] 30421055.
Association of Adjuvant Therapy with Improved Survival in Ampullary Cancer: A National Cohort Study.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 22(4):695-702 [DOI] 10.1007/s11605-017-3624-6. [PMID] 29127604.
Determining the Adequate Examined Lymph Node Count in Resected Ampullary Adenocarcinoma—A National Cohort Study
Journal of Gastrointestinal Surgery. 22(5):792-801 [DOI] 10.1007/s11605-018-3737-6.
Improved Survival in Surgically Resected Distal Cholangiocarcinoma Treated with Adjuvant Therapy: a Propensity Score Matched Analysis.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 22(12):2080-2087 [DOI] 10.1007/s11605-018-3875-x. [PMID] 30030718.
Knockdown of Anillin Actin Binding Protein Blocks Cytokinesis in Hepatocytes and Reduces Liver Tumor Development in Mice Without Affecting Regeneration.
Gastroenterology. 154(5):1421-1434 [DOI] 10.1053/j.gastro.2017.12.013. [PMID] 29274368.
Minimally Invasive Versus Open Pancreaticoduodenectomy: A Propensity-matched Study From a National Cohort of Patients.
Annals of surgery. 268(1):151-157 [DOI] 10.1097/SLA.0000000000002259. [PMID] 28486387.
Racial and ethnic disparities in a national cohort of ampullary cancer patients
Journal of Surgical Oncology. 117(2):220-227 [DOI] 10.1002/jso.24835. [PMID] 28968918.
Reply to Grant, William: Obesity and vitamin D status may help explain the racial and ethnic disparities in ampullary cancer survival rates
Journal of Surgical Oncology. 117(6):1343-1343 [DOI] 10.1002/jso.24952.
Robotic-assisted versus laparoscopic pancreaticoduodenectomy: oncological outcomes
Surgical Endoscopy. 32(6):2907-2913 [DOI] 10.1007/s00464-017-6002-2.
Arid1a Has Context-Dependent Oncogenic and Tumor Suppressor Functions in Liver Cancer.
Cancer cell. 32(5):574-589.e6 [DOI] 10.1016/j.ccell.2017.10.007. [PMID] 29136504.
Arid1b haploinsufficient mice reveal neuropsychiatric phenotypes and reversible causes of growth impairment.
eLife. 6 [DOI] 10.7554/eLife.25730. [PMID] 28695822.
Conversion of Minimally Invasive Distal Pancreatectomy: Predictors and Outcomes.
Annals of surgical oncology. 24(12):3725-3731 [DOI] 10.1245/s10434-017-6062-5. [PMID] 28849407.
Current Management of Peritoneal Carcinomatosis From Colorectal Cancer: The Role of Cytoreductive Surgery and Hyperthermic Peritoneal Chemoperfusion.
Current colorectal cancer reports. 13(2):144-153 [PMID] 28890671.
Metabolic syndrome remission after Roux-en-Y gastric bypass or sleeve gastrectomy.
Diabetes, metabolic syndrome and obesity : targets and therapy. 10:393-402 [DOI] 10.2147/DMSO.S142731. [PMID] 29033596.
Nomogram to predict non-home discharge following pancreaticoduodenectomy in a national cohort of patients.
HPB : the official journal of the International Hepato Pancreato Biliary Association. 19(12):1037-1045 [DOI] 10.1016/j.hpb.2017.07.011. [PMID] 28867297.
Robotic Versus Laparoscopic Pancreaticoduodenectomy: a NSQIP Analysis.
Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract. 21(11):1784-1792 [DOI] 10.1007/s11605-017-3543-6. [PMID] 28819886.
The surgeon-performed ultrasound: a curriculum to improve residents’ basic ultrasound knowledge
Journal of Surgical Research. 213:51-59 [DOI] 10.1016/j.jss.2017.02.031. [PMID] 28601332.
The Yield of Staging Laparoscopy in Gastric Cancer is Affected by Racial and Ethnic Differences in Disease Presentation.
Annals of surgical oncology. 24(7):1787-1794 [DOI] 10.1245/s10434-017-5805-7. [PMID] 28194592.
Diagnosis and Treatment of Pancreatic Cystic Neoplasms.
JAMA. 316(12) [DOI] 10.1001/jama.2016.9130. [PMID] 27673319.
Minimally Invasive Liver Surgery for Hepatic Colorectal Metastases.
Current colorectal cancer reports. 12(2):103-112 [PMID] 27570500.
Pancreatic Operations.
JAMA. 316(18) [DOI] 10.1001/jama.2016.11165. [PMID] 27825010.
Robotic cystogastrostomy and debridement of walled-off pancreatic necrosis.
Journal of robotic surgery. 10(3):279-82 [DOI] 10.1007/s11701-016-0581-0. [PMID] 27039191.
Suppression of the SWI/SNF Component Arid1a Promotes Mammalian Regeneration.
Cell stem cell. 18(4):456-66 [DOI] 10.1016/j.stem.2016.03.001. [PMID] 27044474.
Types of Pancreatic Cysts.
JAMA. 316(11) [DOI] 10.1001/jama.2016.9035. [PMID] 27654619.
Carbon monoxide protects against hemorrhagic shock and resuscitation-induced microcirculatory injury and tissue injury.
Shock (Augusta, Ga.). 43(2):166-71 [DOI] 10.1097/SHK.0000000000000264. [PMID] 25243427.
Gastrointestinal perforation.
JAMA surgery. 150(2):177-8 [DOI] 10.1001/jamasurg.2014.358. [PMID] 25549241.
Inhaled Carbon Monoxide Protects against the Development of Shock and Mitochondrial Injury following Hemorrhage and Resuscitation.
PloS one. 10(9) [DOI] 10.1371/journal.pone.0135032. [PMID] 26366865.
Polymicrobial sepsis is associated with decreased hepatic oxidative phosphorylation and an altered metabolic profile.
The Journal of surgical research. 186(1):297-303 [DOI] 10.1016/j.jss.2013.08.007. [PMID] 24054495.
Novel management strategies in the treatment of severe Clostridium difficile infection.
Advances in surgery. 46:111-35 [PMID] 22873036.
Prognostic significance of gelsolin and MMP12 in Langerhans cell histiocytosis.
The Korean journal of hematology. 47(4):267-72 [DOI] 10.5045/kjh.2012.47.4.267. [PMID] 23320005.


Dec 2020 ACTIVE
Optimal Perioperative Therapy For Incidental Gallbladder Cancer (OPT-IN): A Randomized Phase II/III Trial
Role: Principal Investigator


Fellowship in Complex General Surgical Oncology
2019-2021 · University of Pittsburgh Medical Center
Master of Science in Clinical and Translational Science
2015-2017 · University of Texas Southwestern
Residency in General Surgery
2014-2019 · University of Texas Southwestern Medical Center
Residency in General Surgery
2012-2014 · Johns Hopkins Hospital
Research fellowship
2011-2012 · University of Pittsburgh Medical Center
Medical Degree
2007-2011 · American University of Beirut

Contact Details

(352) 594-5132
Administrative Spec II: