Endocrine Abstracts

Introduction: Hypocalcemia has been linked to a decreased myocardial performance and even congestive heart failure, while acute chest-pain as leading symptom of hypocalcemia is an unusual presentation.Case report: A 29-year-old Caucasian man presented to the emergency department with relapsing chest-pain since several days, lasting seconds sometimes lasting several minutes, radiating to the left shoulder and combined with mild tingling in the neck. A det...

Introduction: Central hypothyroidism is rare, estimated to occur in 1:20,000 to 1:80,000 in the general population. Pituitary mass lesions and adverse effects of their treatment are the most common causes of central hypothyroidism. In recent years, the incidence of pituitary hormonal deficiencies as adverse effects of novel molecular targeting anticancer drugs has risen sharply. Especially checkpoint inhibitors are associated with partial or complete hypopituitarism. In this r...

Background: The main challenge in the diagnosis of arginine vasopressin deficiency (AVP-deficiency, formerly known as central diabetes insipidus), is its distinction against primary polydipsia. Hypertonic saline stimulated copeptin showed a high diagnostic accuracy of 97% in distinguishing between AVP-deficiency and primary polydipsia (Fenske W, Refardt J, NEJM 2018), but comprises discomfort for patients and requires close sodium monitoring. Arginine stimulated copeptin showe...