Department of Surgery »  Faculty »  Andrew M. Posselt, M.D., Ph.D.

Andrew M. Posselt, M.D., Ph.D., FACS

Associate Professor of Surgery
Division of Transplant Surgery
Co-Director, Pancreatic Islet Cell Transplant Program

Contact Information

(415) 353-1888 Clinical, Liver
(415) 353-1551 Clinical, Kidney and Pancreas
(415) 353-1473 Academic
andrew.posselt@ucsfmedctr.org

Education

  • Stanford University, B.S., Biology, 1981-85
  • University of Pennsylvania, M.D., Medicine, 1985-93
  • University of Pennsylvania, Ph.D., Immunology, 1989-93

Residencies

  • University of California, San Francisco, Resident, Medicine, 1993-96
  • University of California, San Francisco, Resident, Surgery, 1996-00

Fellowships

  • University of California, San Francisco, Fellow, Transplant Surgery, 2000-02

Board Certifications

  • American Board of Internal Medicine, 1996
  • American Board of Surgery, 2002

Program Affiliations

  • Pancreatic Islet Transplantation Program
  • Bariatric Surgery Center
  • ABO-Incompatible Kidney Transplant Program

Clinical Expertise

Research Interests

  • Assessment of long-term clinical outcomes in kidney donors
  • Clinical outcomes of bariatric surgery in patients with end-stage kidney or liver disease
  • Metabolic and biochemical consequences of bariatric surgery
  • Transplantation of pancreatic islets as treatment for type 1 diabetes mellitus

Biography

Dr. Andrew Posselt is an attending multi-organ transplant surgeon at UCSF and Director of the ABO-Incompatible Kidney Transplant Program as well as Co-director of the Pancreatic Islet Transplant Program and the Bariatric Surgery Program.  Dr. Posselt specializes in adult and pediatric kidney, liver and pancreas transplantation; laparoscopic donor nephrectomy; and laparoscopic as well as open bariatric surgery.  Dr. Posselt's current research interests include: 1) transplantation of pancreatic islets for the treatment of type 1 diabetes mellitus; 2) assessment of long-term renal function in kidney donors after donor nephrectomy; 3) immunologic and tolerogenic properties of embryonic stem cells; and 4) bariatric surgery in patients awaiting transplant. Highly respected by his peers, Dr. Posselt was named to the list of U.S. News "America's Top Doctors," a distinction reserved for the top 1% of physicians in the nation for a given specialty.

Clinical Trials

 

Publications

Most recent publications from a total of 63
  1. Kitzmann JP, Pepper AR, Gala-Lopez B, Pawlick R, Kin T, O'Gorman D, Mueller KR, Gruessner AC, Avgoustiniatos ES, Karatzas T, Szot GL, Posselt AM, Stock PG, Wilson JR, Shapiro AM, Papas KK. Human Islet Viability and Function Is Maintained During High-density Shipment in Silicone Rubber Membrane Vessels. Transplant Proc. 2014 Jul-Aug; 46(6):1989-91. View in PubMed
  2. Kitzmann JP, Pepper AR, Gala-Lopez B, Pawlick R, Kin T, O'Gorman D, Mueller KR, Gruessner AC, Avgoustiniatos ES, Karatzas T, Szot GL, Posselt AM, Stock PG, Wilson JR, Shapiro AM, Papas KK. Human Islet Viability and Function Is Maintained During High-density Shipment in Silicone Rubber Membrane Vessels. Transplant Proc. 2014 Jul-Aug; 46(6):1989-91. View in PubMed
  3. Benedict KA, Moassesfar S, Adi S, Gitelman SE, Brennan JL, McEnhill M, Stock PG, Portale AA, Posselt AM. Combined pancreatic islet and kidney transplantation in a child with unstable type 1 diabetes and end-stage renal disease. Am J Transplant. 2013 Aug; 13(8):2207-10. View in PubMed
  4. Lin MY, Tavakol MM, Sarin A, Amirkiai SM, Rogers SJ, Carter JT, Posselt AM. Laparoscopic sleeve gastrectomy is safe and efficacious for pretransplant candidates. Surg Obes Relat Dis. 2013 Sep-Oct; 9(5):653-8. View in PubMed
  5. Barton FB, Rickels MR, Alejandro R, Hering BJ, Wease S, Naziruddin B, Oberholzer J, Odorico JS, Garfinkel MR, Levy M, Pattou F, Berney T, Secchi A, Messinger S, Senior PA, Maffi P, Posselt A, Stock PG, Kaufman DB, Luo X, Kandeel F, Cagliero E, Turgeon NA, Witkowski P, Naji A, O'Connell PJ, Greenbaum C, Kudva YC, Brayman KL, Aull MJ, Larsen C, Kay TW, Fernandez LA, Vantyghem MC, Bellin M, Shapiro AM. Improvement in outcomes of clinical islet transplantation: 1999-2010. Diabetes Care. 2012 Jul; 35(7):1436-45. View in PubMed
  6. Lin MY, Tavakol MM, Sarin A, Amirkiai SM, Rogers SJ, Carter JT, Posselt AM. Safety and feasibility of sleeve gastrectomy in morbidly obese patients following liver transplantation. Surg Endosc. 2013 Jan; 27(1):81-5. View in PubMed
  7. Berney T, Korsgren O, Posselt A, Pileggi A. Islet Transplantation & ß-Cell Replacement Therapies for Diabetes. J Transplant. 2011; 2011:157840. View in PubMed
  8. Ahearn AJ, Posselt AM, Kang SM, Roberts JP, Freise CE. Experience with laparoscopic donor nephrectomy among more than 1000 cases: low complication rates, despite more challenging cases. Arch Surg. 2011 Jul; 146(7):859-64. View in PubMed
  9. Rabl C, Peeva S, Prado K, James AW, Rogers SJ, Posselt A, Campos GM. Early and late abdominal bleeding after Roux-en-Y gastric bypass: sources and tailored therapeutic strategies. Obes Surg. 2011 Apr; 21(4):413-20. View in PubMed
  10. Posselt AM, Szot GL, Frassetto LA, Masharani U, Tavakol M, Amin R, McElroy J, Ramos MD, Kerlan RK, Fong L, Vincenti F, Bluestone JA, Stock PG. Islet transplantation in type 1 diabetic patients using calcineurin inhibitor-free immunosuppressive protocols based on T-cell adhesion or costimulation blockade. Transplantation. 2010 Dec 27; 90(12):1595-601. View in PubMed
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