Latent Autoimmune Diabetes in Adults Following Bariatric Surgery-Induced Hypoglycemia in a 36-Year-Old Woman

Post-bariatric surgery hypoglycemia, also recognized as late dumping syndrome or postprandial hyperinsulinemic hypoglycemia, is a complex condition often driven by multifactorial roots, including postoperative anatomical changes, altered gut hormone responses, metabolic shifts, and other hidden conditions, necessitating a multidisciplinary approach for appropriate evaluation and treatment. We present the case of a 36-year-old female nurse who experienced recurrent hypoglycemia following gastric sleeve surgery. Despite significant weight loss and dietary adjustments, she continued to struggle with unstable blood glucose levels. A comprehensive dysglycemia evaluation revealed the presence of an autoimmune disorder consistent with the criteria for latent autoimmune diabetes in adults (LADA), as defined by "The Immunology of Diabetes Society" (IDS). This new diagnosis added complexity to her clinical management, leading us to reassess her treatment strategy. As a result, her treatment plan was modified to include the initiation of insulin and the introduction of the newly FDA-approved teplizumab, which may help delay the progression of autoimmune diabetes. This case underscores the importance of systematic hypoglycemia evaluations in bariatric surgery patients to optimize clinical outcomes. Managing hypoglycemia in these patients requires a collaborative effort involving endocrinologists, surgeons, and nutritionists to ensure the best outcomes and improve the patient's quality of life.