Endocrine Abstracts

Background: Pituitary adenomas are the most prevalent tumours in the sellar region and can either be functioning, with autonomous pituitary hormone secretion, or non-functioning. Clinically evident adenomas occur in 1 in 1,100 in the general population. Pituitary adenomas have traditionally been subdivided into microadenomas (<10 mm) or macroadenomas (≥ 10 mm), with macroadenomas comprising 48% of clinically relevant adenomas. Non-functioning pituita...

Background: Gastroenteropancreatic neuroendocrine tumors (GEP-NETs) are a relatively rare group of tumors. Traditionally, management of unresectable GEP-NETs was performed by in-person assessment at specialized regional cancer centers. The COVID-19 pandemic resulted in an unprecedent shift towards virtual care. The aim of this study is to evaluate the use of virtual care for GEP-NETs after the COVID-19 pandemic at a high-volume academic cancer center. Me...

Objective: Thyroid peroxidase antibody (TPOAb) positivity is the most important risk factor for overt/subclinical hypothyroidism and partly guides levothyroxine treatment indications during pregnancy. TPOAb positivity is usually defined by manufacturer cutoffs which are typically derived in non-pregnant populations with concentrations ≥95th percentile. Besides the general lack of assay uniformity, current TPOAb positivity cutoffs are likely to underestimate gestational t...

Objective: Adequate thyroid hormone availability is essential for foetal neurodevelopment. While overt maternal hypothyroidism is associated with lower offspring IQ, recent studies suggested an inverse U-shaped association, with suboptimal offspring neurodevelopment for both the lower and higher thyroid function range. Our aim is to investigate the association of gestational thyroid function with offspring IQ scores, assess if this association is different based on the gestati...

Objective: Remission rates in young people with Graves’ hyperthyroidism are <25% after a 2-yr course of thionamide antithyroid drug (ATD). Immunomodulatory agents might improve outcome by facilitating immune tolerance. We explored whether rituximab (RTX) would increase remission rates when administered with a short course of ATD.Design: This was an open label multi-centre single arm phase 2 trial in newly presenting young people (12-20y) with Gr...

Phthalate exposure is associated with thyroid function during pregnancy through a novel pathway as a hCG disruptor.Objectives: hCG stimulates thyroid function in pregnancy and phthalates are known thyroid disruptors. We investigated if phthalate exposure could act as a thyroid disruptor through affecting hCG.Methods: This study was embedded in the prospective Swedish Environmental Longitudinal, Mother and child, Asthma and allergy ...

Central precocious puberty (CPP) is a common and well-recognised condition characterised by premature activation of the hypothalamic-pituitary-gonadal axis, with consequent potential adverse health and psychosocial outcomes. Standard management of CPP is with periodic injections of gonadotropin-releasing hormone analogue therapy. Decapeptyl SR (Triptorelin pamoate) has for several years been available as a long-acting (12-weekly, 11.25 mg) preparation, but more recently is ava...

Background: Primary aldosteronism (PA) is the commonest cause of secondary hypertension. Reported prevalence is about 30% in hypertensive population. Success of screening for PA in general practice (GP) is unknown. Expected challenges include laboratory access, transport issues and interfering medications.Aims: We aimed to report prevalence of PA in a large primary care cohort, the correlation between GP and in-hospital ARR and to assess if a change in r...

Introduction: Immunotherapy has transformed the outcomes of various cancers. Monoclonal antibodies against cytotoxic T lymphocyte antigen 4 (CTLA4), programmed cell death 1 (PD1) and its ligand, PDL1 target mainly T cells, unleashing the immune system against tumour cells. Immune checkpoint inhibitor therapy results in a variety of immune related adverse events, including various endocrinopathies. Thyroid disorders, pituitary disorders are relatively more common compared to pr...

Introduction: The incidence of the syndrome of inappropriate antidiuresis (SIAD) post pituitary surgery is estimated at 3-20% with the condition potentially leading to significant morbidity and prolonged admission. Copeptin, a surrogate marker for vasopressin activity, has been shown to be a diagnostic tool in the diagnosis of AVP deficiency (formerly known as diabetes insipidus) post pituitary surgery. There is limited data regarding the utility of copeptin in predicting SIAD...