Calcium

Using the FREEDOM substudy as a benchmark, evaluate the effects of amorphous calcium carbonate (ACC) on bone mineral density (BMD) in postmenopausal women, both with and without the combination of Denosumab treatment.

Secondary hyperparathyroidism (SHPT), which is frequently associated with chronic kidney disease, leads to problems such as bone pain, fractures, and cardiovascular issues, thereby affecting patients' quality of life. This clinical trial is designed to compare the efficacy of thermal ablation and surgical treatment for SHPT. Parameters including parathyroid hormone levels, serum calcium and phosphorus levels, SHPT-related symptoms (for example, bone pain, muscle weakness), and complication occurrence will be monitored. The advantages involve enabling better treatment decisions for patients, enhancing patients' quality of life, and alleviating the burden on families, in addition to augmenting the clinical knowledge of healthcare providers. However, both treatments carry risks. Thermal ablation may have problems like incomplete ablation, local tissue damage, and blood parameter changes. Surgical risks comprise bleeding, infection, adjacent tissue damage (such as the recurrent laryngeal nerve), and hypoparathyroidism. The investigators will strive to minimize these risks. This trial is of great significance for SHPT treatment, and the investigators welcome participants to contribute to the advancement of medical science in this area.