The Department of Surgery

Gregory J. Mancini, MD, FACS, FASMBS

Professor
Program Director, Advanced GI MIS/Bariatric Fellowship
Division of General Surgery

Clinical Focus

Minimally Invasive Surgery, Gastrointestinal Surgery, Bariatric Surgery, Complex Hernia Repairs

Research Focus

Dr. Mancini has been working with Biomedical Engineering at UT on the development of implantable robotic technology for surgical application. He has also focused on adipose (fat tissue) analysis in patients undergoing invasive bariatric ("weight reduction") surgery and the relationship between weight loss and changes in serum electrolytes. Dr. Mancini has also been developing low-dose opioid perioperative treatment algorithms to reduce narcotic use related to surgery. Educational tools have been constructed in collaboration with a major malpractice carrier to aid in education of current practicing physicians and he is planning to measure the impact of the tools on clinical practice.

Education

Medical School
Mercer University School of Medicine, Macon, GA

Internship
General Surgery, University of Tennessee Graduate School of Medicine

Residency
General Surgery, University of Tennessee Graduate School of Medicine

Fellowship
Minimally Invasive and Bariatric Surgery, University of Missouri, Columbia, MO

Certification

American Board of Surgery

Professional Affiliations

American College of Surgeons
Society of American Gastrointestinal Endoscopic Surgeons
Southeastern Surgical Congress
American Hernia Society

Book Chapter

Mancini GJ, Le HN: Loss of abdominal domain: Definition and treatment strategies. In: Hernia Surgery: Current Principles, Cham: Springer, Chapter 34, p. 361-370, 2016.

Current Publications

Taylor R, Madion M, Kleppe K, Mancini M, Mancini G, Hutson M, Yates J, Daigle H.
Increasing enoxaparin dosing from 30 mg to 40 mg does not affect bleeding or VTE risk in bariatric surgery patients. Am Surg. 2024 Jun;90(6):1784-1786. doi: 10.1177/00031348241241696. Epub 2024 Mar 26.

Taylor R, Madion M, Kleppe K, Mancini M, Mancini G, Hutson M, Yates J, Daigle H.
Increasing enoxaparin dosing from 30 mg to 40 mg does not affect bleeding or vte risk in bariatric surgery patients. Am Surg. 2024 Mar 26:31348241241696. doi: 10.1177/00031348241241696. Online ahead of print.

Grubbs JE, Daigle HJ, Shepherd M, Heidel RE, Kleppe KL, Mancini ML, Mancini GJ.
Fighting the obesity pandemic during the COVID-19 pandemic. Surg Endosc. 2023 Jun;37(6):4895-4901. doi: 10.1007/s00464-022-09628-6. Epub 2022 Sep 26.

Li N, Liu H, Abdolmalaki RY, Mancini GJ, Tan J.
s-CAM: An untethered insertable laparoscopic surgical camera robot with non-contact actuation. Sensors (Basel). 2022 Apr 29;22(9):3405. doi: 10.3390/s22093405.

Current Presentations

Madion M, Sharma A, Mancini G, Mancini M, Kleppe K, Daigle H. Types and management of biliary pathology during cholecystectomy after bariatric surgery: A single institution review Presented at Tennessee Chapter of the American Society of Metabolic and Bariatric Surgery; 2023 April - 28; Franklin.

Kleppe K, Daigle H, Shepherd M, Mancini G, Mancini M, Heidel RE. Out of harm’s reach: Outpatient surgery reduces post-operative opioid use among bariatric surgery patients. Presented at American Society for Metabolic and Bariatric Surgery Annual Meeting; 2022 June; Dallas, TX.

Daigle H, Shepherd M, Heidel E, Kleppe K, Mancini M, Mancini G. Out of Harm's Reach: Outpatient Surgery Reduces Post-Operative Opioid Use Among Bariatric Surgery Patients. Presented at American Society for Metabolic and Bariatric Surgery; 2022 June-5; Dallas, Texas.

Taylor R, Daigle H, Ball K, Hutson M, Heidel E, Mancini M, Mancini G, Kleppe K. Increasing Prophylactic Enoxaparin Dosing From 30 mg to 40 mg Does Not Increase Risk of Bleeding in Bariatric Surgery Patients. Presented at American Society for Metabolic and Bariatric Surgery ; 2022 June-5; Dallas, Texas.

Grubbs JE, Daigle HJ, Shepherd M, Kleppe KL, Mancini ML, Mancini GJ. Fighting the Obesity Pandemic During the Covid Pandemic. Presented at Society of American Gastrointestinal and Endoscopic Surgeons (SAGES); 2022 March-16; Denver, Colorado.

Kleppe K, Grubbs JE, Daigle HJ, Mancini ML, Mancini GJ, Shepherd M. “Fighting the Obesity Pandemic During the COVID Pandemic. Presented at Society of American Gastrointestinal and Endoscopic Surgeons, Annual Meeting; 2022 March-16; Denver, CO.

Daigle H, Edwards M, Mancini G, Mancini M. Recent Cholecystectomy Confounding Presentation of Perforated Gastric Ulcer. Presented at Southeastern Surgical Congress ; 2022 February-5; Nashville, Tennessee.

Grubbs JE, Shepherd M, Kleppe KL, Mancini ML, Mancini GJ. Fighting the obesity pandemic during the COVID pandemic. Presented at Tennessee Chapter of the American Society for Metabolic and Bariatric Surgery Annual Meeting; 2021 Aug 5-8; Memphis, TN.