Abstract
Persistent (tertiary) hyperparathyroidism (TH) after renal transplantation may cause considerable morbidity and necessitate parathyroidectomy. This study investigated the characteristics of this patient subgroup. The medical data and pathology specimens of 20 kidney transplant recipients who underwent parathyroidectomy for TH in 2001 to 2004 were reviewed. Treatment consisted of subtotal resection of 3.5 glands in 13 patients, resection of 3 to 3.5 glands under intraoperative parathyroid hormone monitoring (iPTH) in 5 patients, and selective resection in 2 patients with markedly asymmetric gland enlargement. Eighteen patients had hyperplasia-diffuse in 10, nodular in 4, or both in 2; 2 patients had 1 large nodule in every gland. Six patients had postoperative complications. Follow-up of 2 years revealed recurrent hypercalcemia in 1 patient and a high level of PTH (>60 pg/mL) in 12. Subtotal resection for TH may be insufficient. The use of iPTH monitoring is recommended. Renal transplant recipients have distinctive characteristics and require special perioperative attention.
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