| Popis: |
Background: Upon evaluation of patients with recurrent hypoglycemia, both exogenous and endogenous causes should be excluded. Among endogenous hyperinsulinemic hypoglycemia (EHH) pathologies, Insulin Autoimmune Syndrome (IAS), even though extremely rare, must be considered. Most cases of IAS have been reported in the Oriental population, mostly Japanese. No gold standard of care for this condition has been established. Clinical Case: This is the case of an 82 year-old obese female patient with dyslipidemia, obstructive sleep apnea, and osteoarthritis that comes to the Endocrinology clinics for evaluation due to recurrent episodes of hypoglycemia. She refers that for the last three years she had been presenting with multiple episodes of symptomatic hypoglycemia, even levels as low as 30 mg/dL, requiring multiple hospitalizations. Consequently, she refers a 15-pound weight gain because of multiple daily snacks. Home medications were simvastatin and diclofenac. She denies using insulin, sulfonylureas, other hypoglycemic agents, alcohol, or illicit substances. Abdominal MRI and PET CT scan were remarkable only for an atrophic pancreas without focal masses. Patient was hospitalized for a supervised 72-hour fast, resulting in severe hypoglycemia within 14 hours with elevated insulin levels at 46.3 uIU/mL (1.7-31.0 uIU/mL), elevated C-peptide levels at 5.79 ng/mL (0.9-4.3 ng/mL) and elevated insulin antibodies 53µU/mL ( |
