Cardiovascular, Renal, and Skeletal Complications in Patients With Post-Surgical Hypoparathyroidism

The aim of this observational study is to learn about long term effects to post surgical hypoparathyroidism. The main questions are: 1. Patients with hypoparathyroidism do not have an increased arterial stiffness compared to healthy controls. 2. Patients with hypoparathyroidism do not have an increased coronary artery plaque burden assessed by cardiac CT compared to healthy controls. 3. Patients with hypoparathyroidism do not have an increased prevalence of vertebral fractures compared to healthy controls. Results will be compared with gender and age matched controls from the general population. Participants will have a CT scan, DXA scan, tonometry, blood samples and questionaries performed and collect a 24-hour urine sample.