Andrew M. Posselt

About this provider

Andrew M. Posselt is listed in general surgery in San Francisco, CA. Reported medical education includes Perelman School Of Med At The University Of Pennsylvania (1993).

Reported procedures

• Robotic surgery Source ↗
• Bariatric surgery Source ↗

Source-reported information; confirm current details directly.

Education & training

• PERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA · 1993 Source ↗
• PhD, 1993 - Immunology, University of Pennsylvania M.D., 1993 - School of Medicine, University of Pennsylvania Residency, - Internal Medicine, University of California, San Francisco Source ↗

Source-reported information; confirm current details directly.

Reported credentials

• Internal Medicine Source ↗
• Surgery Source ↗

Source-reported information; confirm current details directly.

Reported affiliations

• UCSF MEDICAL GROUP BUSINESS SERVICES Source ↗
• UCSF DEPT OF SURGERY Source ↗

Source-reported information; confirm current details directly.

Selected publications

• Diabetes related genetics and outcomes after total pancreatectomy with islet autotransplantation. · 2026 Source ↗
• Rates of hospitalization pre- and post-total pancreatectomy with islet autotransplantation for patients with pancreatitis. · 2026 Source ↗
• Predictors of Diabetes Outcomes at 1 Year After Islet Autotransplantation: Data From a Multicenter Cohort Study. · 2025 Source ↗
• Skeletal Effects of Sleeve Gastrectomy, by Sex and Menopausal Status and Compared to Roux-En-Y Gastric Bypass Surgery. · 2025 Source ↗
• Obesity management before and after pancreas transplantation. · 2025 Source ↗
• Total Pancreatectomy With Islet Autotransplantation for Chronic Pancreatitis. · 2025 Source ↗
• Association between bariatric surgery after kidney transplantation and graft and survival outcomes. · 2025 Source ↗
• Islet Isolation Outcomes in Patients Undergoing Total Pancreatectomy With Islet Autotransplantation in the POST Consortium. · 2025 Source ↗
• Alteration in the gut microbiome is associated with changes in bone metabolism after laparoscopic sleeve gastrectomy. · 2024 Source ↗
• Nutritional Risks in Patients Undergoing Total Pancreatectomy Islet AutoTransplantation in the POST Consortium. · 2023 Source ↗
• A Multi-Modal Approach to Islet and Pancreas Transplantation With Calcineurin-Sparing Immunosuppression Maintains Long-Term Insulin Independence in Patients With Type I Diabetes. · 2023 Source ↗
• Intestinal Calcium Absorption Decreases After Laparoscopic Sleeve Gastrectomy Despite Optimization of Vitamin D Status. · 2023 Source ↗
• Characterization of human islet function in a convection-driven intravascular bioartificial pancreas. · 2023 Source ↗
• Islets Transplantation at a Crossroads - Need for Urgent Regulatory Update in the United States: Perspective Presented During the Scientific Sessions 2021 at the American Diabetes Association Congress. · 2021 Source ↗
• Prebiotic to Improve Calcium Absorption in Postmenopausal Women After Gastric Bypass: A Randomized Controlled Trial. · 2022 Source ↗
• Advantages and Limitations of Clinical Scores for Donation After Circulatory Death Liver Transplantation. · 2021 Source ↗
• Surgical approach and short-term outcomes in adults and children undergoing total pancreatectomy with islet autotransplantation: A report from the Prospective Observational Study of TPIAT. · 2022 Source ↗
• Targeting CXCR1/2 in the first multicenter, double-blinded, randomized trial in autologous islet transplant recipients. · 2021 Source ↗
• The Association of Smoking and Alcohol Abuse on Anxiety and Depression in Patients With Recurrent Acute or Chronic Pancreatitis Undergoing Total Pancreatectomy and Islet Autotransplantation: A Report From the Prospective Observational Study of TPIAT Cohort. · 2021 Source ↗
• Bariatric surgery prior to transplantation and risk of early hospital re-admission, graft failure, or death following kidney transplantation. · 2021 Source ↗
• Arguments against the Requirement of a Biological License Application for Human Pancreatic Islets: The Position Statement of the Islets for US Collaborative Presented during the FDA Advisory Committee Meeting. · 2021 Source ↗
• Sleeve gastrectomy prior to liver transplantation is superior to medical weight loss in reducing posttransplant metabolic complications. · 2021 Source ↗
• Anticoagulation practices in total pancreatectomy with autologous islet cell transplant patients: an international survey of clinical programs. · 2021 Source ↗
• Circulating miRNA in Patients Undergoing Total Pancreatectomy and Islet Autotransplantation. · 2021 Source ↗
• COVID-19 and Abdominal Transplant: A Stepwise Approach to Practice During Pandemic Conditions. · 2020 Source ↗
• Preoperative ERCP has no impact on islet yield following total pancreatectomy and islet autotransplantation (TPIAT): Results from the Prospective Observational Study of TPIAT (POST) cohort. · 2021 Source ↗
• Phase 3 trial of human islet-after-kidney transplantation in type 1 diabetes. · 2021 Source ↗
• Ampullary stenosis and choledocholithiasis post Roux-En-Y gastric bypass: challenges of biliary access and intervention. · 2020 Source ↗
• Obesity, transplantation, and bariatric surgery: An evolving solution for a growing epidemic. · 2020 Source ↗
• Long-term follow-up of beta cell replacement therapy in 10 HIV-infected patients with renal failure secondary to type 1 diabetes mellitus. · 2020 Source ↗
• Increases in PYY and uncoupling of bone turnover are associated with loss of bone mass after gastric bypass surgery. · 2020 Source ↗
• A Study on the Effect of Patient Characteristics, Geographical Utilization, and Patient Outcomes for Total Pancreatectomy Alone and Total Pancreatectomy With Islet Autotransplantation in Patients With Pancreatitis in the United States. · 2019 Source ↗
• Changes in Lean Mass, Absolute and Relative Muscle Strength, and Physical Performance After Gastric Bypass Surgery. · 2019 Source ↗
• Outcomes of Sleeve Gastrectomy in Obese Liver Transplant Candidates. · 2019 Source ↗
• Oxygen Perfusion (Persufflation) of Human Pancreata Enhances Insulin Secretion and Attenuates Islet Proinflammatory Signaling. · 2019 Source ↗
• Effects of Gastric Bypass Surgery on Bone Mass and Microarchitecture Occur Early and Particularly Impact Postmenopausal Women. · 2018 Source ↗
• Glucose-Stimulated Insulin Response of Silicon Nanopore-Immunoprotected Islets under Convective Transport. · 2017 Source ↗
• Bone Marrow Fat Changes After Gastric Bypass Surgery Are Associated With Loss of Bone Mass. · 2017 Source ↗
• A Single Perioperative Injection of Dexamethasone Decreases Nausea, Vomiting, and Pain after Laparoscopic Donor Nephrectomy. · 2017 Source ↗
• Phase 3 Trial of Transplantation of Human Islets in Type 1 Diabetes Complicated by Severe Hypoglycemia. · 2016 Source ↗
• Abnormalities in biomarkers of mineral and bone metabolism in kidney donors. · 2016 Source ↗
• National Institutes of Health-Sponsored Clinical Islet Transplantation Consortium Phase 3 Trial: Manufacture of a Complex Cellular Product at Eight Processing Facilities. · 2016 Source ↗
• Expanded indications for bariatric surgery: should patients on chronic steroids be offered bariatric procedures? · 2017 Source ↗
• Silicon nanopore membrane (SNM) for islet encapsulation and immunoisolation under convective transport. · 2016 Source ↗
• A Multicenter Study: North American Islet Donor Score in Donor Pancreas Selection for Human Islet Isolation for Transplantation. · 2016 Source ↗
• Intestinal Calcium Absorption Decreases Dramatically After Gastric Bypass Surgery Despite Optimization of Vitamin D Status. · 2015 Source ↗
• Autologous islet transplantation with remote islet isolation after pancreas resection for chronic pancreatitis. · 2015 Source ↗
• Predictors of hospital stay following laparoscopic gastric bypass: analysis of 9,593 patients from the National Surgical Quality Improvement Program. · 2015 Source ↗
• Islet transplantation in type 1 diabetic patients using calcineurin inhibitor-free immunosuppressive protocols based on T-cell adhesion or costimulation blockade. · 2010 Source ↗
• Clinical islet transplantation at the University of California, San Francisco. · 2010 Source ↗
• Laparoscopic right donor nephrectomy: a large single-center experience. · 2004 Source ↗
• CD69 expression on peripheral CD8 T cells correlates with acute rejection in renal transplant recipients. · 2003 Source ↗

Source-reported information; confirm current details directly.