Increase in Bone Mineral Density after Successful Parathyroidectomy for Tertiary Hyperparathyroidism after Renal Transplantation

Background: Few studies have reported changes of bone mineral density (BMD) after parathyroidectomy in patients with persistent hyperparathyroidism after renal transplantation (3 HPT). Patients and Methods: We retrospectively analyzed 14 patients who underwent successful parathyroidectomy for 3 HPT and who had available BMD data before and after parathyroidectomy. Results: Median follow-up time was 26months (IQR: 16.8-40.2). Serum calcium levels decreased significantly after parathyroidectomy (2.32 ± 0.09 versus 2.66±0.16mmol/l; p<0.01), as did PTH levels (5.1±3.0 versus 27.8±23.7pmol/l; p<0.01). Nine patients (64%) had a steroid-free immunosuppression at follow-up. Mean increase in BMD was 9.5±8.0% for the spine and 9.5±7.9% for the hip (p