18F-Fluoro-L- DOPA PET Imaging for the Detection and Localization of Focal Congenital Hyperinsulinism
Miguel Pampaloni
Summary
The goal of this project is to determine the role of FDOPA/PET as a pre-operative diagnostic imaging procedure for differentiating focal and diffuse forms of congenital hyperinsulinism and locating focal lesions in the pancreas to guide surgical resection.
Description
Congenital hyperinsulinism (HI) is the most common cause of recurrent and persistent hypoglycemia, presenting early in infancy. Patients who fail medical therapy usually require resection of the diseased pancreas(partial or subtotal pancreatectomy) to control this disorder. Over half of patients undergoing surgery have a focal area of islet cell dysfunction that is curable with resection. These focal lesions are areas of adenomatosis consisting of a clone of beta-cells that express a paternally-derived mutation of the KATP channel due to loss of heterozygosity for the maternal allele. Current…
Eligibility
- Age range
- 0–18 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Any age, but primarily infants 0-6 months given typical age of initial presentation. * Children with diagnosis of FoHI or DiHI based on clinical criteria (fasting hypoglycemia accompanied by inadequate suppression of plasma insulin, inappropriately low plasma free fatty acid and plasma-hydroxybutyrate concentrations, and an inappropriate glycemic response to glucagon injection) o confirmed by genetic testing for mutations in ABCC8 and KCNJ1 was1. * Hypoglycemia uncontrolled with medical management (diazoxide, octreotide). * Able to withdraw medications in time to wash…
Interventions
- Drug18F-Fluoro Dopa Imaging
Imaging with 18F-Fluoro Dopa PET Imaging
Location
- University of California, San FranciscoSan Francisco, California