PTH and adenoma: Furthermore, the influence of factors such as concomitant thyroid disease, previous thyroid or parathyroid surgery, adenoma size and weight, as well as biochemical parameters including calcium and parathyroid hormone levels before, during, and after surgery was analyzed.<h4>Results</h4>The primary endpoint of postoperative normalization of parathyroid hormone levels after minimally invasive parathyroidectomy was achieved in 94.2% of patients undergoing surgery.