Endocrine Abstracts

Primary bilateral macronodular adrenal hyperplasia (PBMAH) is a rare cause of Cushing’s syndrome (CS). It is a highly heterogeneous disease with multiple adrenal macronodules and variable levels of cortisol excess. The pathogenesis is complex and different mechanisms such as aberrant hormone receptors, local production of ACTH in adrenal tissues and genetic mutations have been identified. The approach is not well established. Nine patients with PBMAH who are currently fol...

Introduction: In patients with ACTH-dependent Cushing Syndrome, differentiating between pituitary and ectopic sources can be challenging. Noninvasive testing can be performed, but bilateral inferior petrosal sinus sampling (BIPSS) remains the gold standard. In the last years however, novel imaging modalities, namely 3T-MRI with 3-dimensional spoiled gradient-echo sequence and 68Ga-tagged CRH combined with positron emission tomography, have been proposed as alternatives.<p ...

Introduction: The anatomical and physiological changes induced by bariatric surgery (BS) can significantly impact the absorption and pharmacokinetics of orally administered medication. In particular, levothyroxine (LT4) dosage, given its dependence on patient’s weight and gastric pH for optimal absorption, is expected to change following BS. However, the literature is not unanimous and there is a void of longer-term studies. We aimed to compare LT4 dosage 4 years followin...

Background: Bariatric surgery leads to weight loss and to cardiometabolic risk improvement. Although prediabetes remission after bariatric surgery is biologically plausible, data on this topic is scarce.Aim: We aimed to access pre-diabetes remission rate and clinical predictors of remission in a 4 year follow up period.Methods: Observational longitudinal study including patients with morbid obesity and prediabetes submitted to bari...