Dr. Karim Sami Trad, MD

Dr. Karim Sami Trad, MD

Dr. Karim Sami Trad, MD

Languages: English
Fax: (703) 435-3390

Contact this Provider:

  • General Surgery
About the Provider

Dr. Karim S. Trad is a highly competent, skilled, and compassionate surgeon. His philosophy of care is “the best way to care for patients is to care about patients.” He believes in providing the highest quality surgical care and only operates when it is truly indicated. Dr. Trad is certified by the American Board of Surgery and holds active memberships with the American College of Surgeons, the Society of American Gastrointestinal Endoscopic Surgeons, and the American Society of Gastrointestinal Endoscopy. He brings more than 25 years of experience in managing complex gastrointestinal and abdominal surgical problems. He has special training and interest in minimally invasive surgical techniques.

Procedures and Conditions Treated:

  • Gallbladder and biliary problems
  • GERD and hiatal hernias
  • Hernias (all types) and complex abdominal wall repairs
  • Small bowel and colon surgical conditions
  • Weight loss (bariatric) surgery


  • English
  • French
  • Arabic

  • Fellowship Program: Mt. Sinai Medical Center (1993)
  • Residency Program: George Washington University Hospital (1992)
  • Internship Program: George Washington University Hospital (1987)
  • Medical School: Medical University of South Carolina (1986)
  • Board Certification: American Board of Surgery, Surgery

Dziki AJ, Korman LY, Harmon JW, Nardi RV, Bank A, Haddad NG, Trad KS, and Fernicola MT.  New animal model for gastric ulcer healing.  Gastroenterology, 98:39,  1990. 

Dziki AJ, Malthaner RA, Harmon JW, Fernicola MT, Trad KS, Fischer BA, Hakki FZ, Schweitzer EJ, and Bass BL.  Treatment of experimental bile esophagitis.  Gastroenterology 98:39, 1990.

Fernicola MT, Harmon JW, Trad KS, Dziki AJ, Richardson CJ, Hakki FZ, Rao JS, and Bass BL.  Adenosine-induces increase in esophageal blood flow are not mediated via cyclooxygenase products.  Gastroenterology, 98:43,  1990. 

Trad KS, Harmon JW, Fernicola MT, Hakki FZ, Rao JS, Dziki AJ and Bass BL.  Evidence for a role of capsaicin-sensitive mucosal afferent nerves in the regulation of esophageal blood flow in rabbits.  Gastroenterology  98:139,  1990.

Trad KS, Fernicola MT, Hakki FZ, Dziki AJ, Harmon JW, and Bass BL.  Modulation of esophageal blood flow:  A local effector function of sensory nerves.  Surgical Forum   41:122-124, 1990.

Dziki AJ, Duncan MD, Harmon JW, Saini N, Malthaner RA, Trad KS, Fenicola MT, Hakki F, Ugarte RM.  Advantages of handsewn over stapled bowel anastamosis.  Dis Colon Rectum 34:442-448, 1991.

Sidawy AN, Trad KS, Sidawy MK, Zeller J, Hayyeri M, DePalma RG. The effect of e-PTFE and vein cuff on the development of outflow intimal hyperplasia. Surgical Forum 42:345, 1991.

Bass BL, Trad KS, Harmon JW, Hakki FZ.  Capsaicin-sensitive nerves médiate esophageal mucosal protection.  Surgery 110(2) :419-26,

Petersen BM, Curcio LD, Trad KS, Harmon JW, Bass BL.  Modulation of Capillary Permeability:  A New Local Effector Function for Esophageal Afferent Nerves.  Gastroenterology 102:146, 1992.

Petersen BM, Curcio LD, Trad KS, Harmon JW, Bass BL.  Visceral Afferent Nerves Mediate Protection Against Acid-Pepsin Injury of the Esophagus.  Gastroenterology 102:147, 1992.

Petersen BM, Curcio LD, Trad KS, Harmon JW, and Bass BL.  Visceral Afferent Nerves Mediate Protection Against Acid-Bile Injury of the Esophagus.  Surgical Forum 43:143, 1992.

Norberto NJ, Sidawy AN, Trad KS, Jones BA, Neville RF, Najjar SF, Sidawy MK, DePalma RG. The protective effect of vein cuffed anastomoses is not mechanical in origin. Journal of Vascular Surgery 21:558-66, 1995.

Brody FJ, Trad KS. Comparison of acid reduction in laparoscopic antiulcer operations. Surgical Endoscopy, 11(2):123-125,1997.

Tsangaris TN, Trad KS, Brody FJ, Jacobs LK, Tsangaris NT, Sackier JM. Endoscopic axillary exploration and sentinel lymphadectomy.  Surgical Endoscopy, 13(1): 43-47, 1999.

Trad KS, Turgeon DG, Deljkich E. Long-term Outcomes after Transoral Incisionless Fundoplication in Patients with GERD and LPR Symptoms. Surgical Endoscopy 26 :650-660, 2012.

Bell  RC, Mavrelis PG, Barnes WE, Dargis D, Carter BJ, Hoddinott KM, Sewell RW, Trad KS, Gill BD, Ihde GM. A Prospective Multicenter Registry of Patients with Chronic Gastroesophageal Reflux Disease Receiving Transoral Incisionless Fundoplication. J Am Coll Surg 215(6): 794-809, 2012.

Wilson EK, Trad KS, et al. The Effects of Endoscopic Fundoplication on Chronic GERD Patients: 12 Month Prospective Multicenter Experience. Surg Laparosc Endosc Percutan Tech; 2014 Feb; 24(1):36-46.

Bell RC, Barnes WE, Carter BJ, Sewell RW, Mavrelis PG, Ihde GM, Hoddinott KM, Fox MA, Gunsberger T, Hausmann MG, Dargis D, Gill BD, Wilson E, Trad KS.  Long Term Outcomes of Endoscopic Fundoplication: 2 Year Results from the Prospective Multicenter U.S. Study. The American Surgeon; Vol.80(11), November 2014, 1093-1105.

Trad KS, et al. Transoral Fundoplication vs. Proton Pump Inhibitor Therapy for Treatment of Chronic Gastroesophageal Reflux: Short-term Results From a Multicenter, Randomized, Open Label Clinical Trial. Gastroenterology; May 2013 Vol. 144(5), Supplement 1, Pages S163-S-164.

Bell RC, Trad KS, et al. Univariate and Multivariate Analyses of Preoperative Factors influencing Symptomatic Outcomes of Transoral Fundoplication.  Surgical Endoscopy, October 2014; 28:2949-2858.

Trad KS, et al. Efficacy of Transoral Fundoplication for Treatment of Chronic Gastroesophageal Reflux Disease incompletely controlled with high-dose PPI Therapy: A randomized, multicenter, open label crossover study.  BMC Gastroenterology, October 2014; 6:14(1):174.

Trad KS, et al. Transoral Incisionless Fundoplication Effective in Eliminating GERD Symptoms in Partial Responders to Proton Pump Inhibitor Therapy at 6 Months: The TEMPO Randomized Clinical Trial.  Surgical Innovation, February 2015; 22(1): 26–40.

Hunter JG, Kahrilas PJ, Bell RCW, Wilson, EB, Trad KS, et al. Efficacy of Transoral Fundoplication vs Omeprazole for Treatment of Regurgitation in a Randomized Controlled Trial. Gastroenterology, February 2015;148(1):324-33.

Trad KS, et al. Transoral Fundoplication Offers Durable Symptom Control for Chronic GERD: 3-year Report from the TEMPO Randomized Trail with a Crossover Arm.  Surgical Endoscopy, June 2017; 31(6):2498-2508.

Trad KS. Transoral Incisionless Fundoplication: Current Status. Current Opinions in Gastroenterology, July 2016:32(4):338-343.

Gerson,LB, Trad, KS, Lobontiu,A. Efficacy of Transoral Incisionless Fundoplication for Gastroesophageal Reflux Disease: A Meta-Analysis.  Gastroenterology, April 2016:150(4):S480.

Trad KS, et al.  The TEMPO Trial at 5 Years: Transoral Fundoplication (TIF 2.0) Is Safe, Durable, and Cost-effective.  Surgical Innovation, April 2018; 25(2):149-157.

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Practice Locations
Member of Medical Staff
  • MedStar Georgetown University Hospital
  • 2017: Jules Cahan Distinguished Teaching Award, George Washington University School of Medicine and Health Sciences
  • 2014-2020: America’s Top Doctors, Castle Connolly
  • 2011-2018: Superdoctors, Washington, DC – Baltimore – Northern Virginia, Washington Post Magazine
  • 2011-2020: Top Doctors, Northern Virginia Magazine
  • 2010-2019: Washington Top Doctor, Washingtonian Magazine
  • 2013: SAGES 2013 Recognition of Excellence Award, Society of American Gastrointestinal and Endoscopic Surgeons
  • 1995: SAGES 1995 Research Award and Grant, US Surgical Corporation.  Project title: “Comparison of Acid Reduction in Four Laparoscopic Anti-Ulcer Operations”��
  • 1994: Finalist, Most Distinguished Faculty Teacher Award, The George Washington University School of Medicine
  • 1992: Harry B. Zehner Memorial Traveling Fellowship Award, Washington Chapter, American College of Surgeons
  • 1992: Outstanding Resident Award (Selected by the Attending Physicians Association) The George Washington University
  • 1992: Upjohn Achievement Award (Selected by House Officer Peers), Department of Surgery, The George Washington University
  • 1991: Third Place Honors, Surgical Competitive Forum, The Washington Academy of Surgery
  • 1990: First Place, Scientific Paper Competition, Chesapeake Vascular Society
  • 1986: William H. Lee Award, Division of Cardiothoracic Surgery Medical University of South Carolina – Charleston, SC