[Surgical treatment of recurrent secondary hyperparathyroidism].
INTRODUCTION: Secondary renal hyperparathyroidism (SHPT) affects nearly all patients on regular hemodialysis. Between 5% and 10% will need surgery to control the disease. Despite a meticulous technique, the rate of recurrent/persistent hyperparathyroidism after surgery remains between 2% and 12%. PATIENTS AND METHOD: We reviewed the reoperations of 7 patients with recurrent or persistent SHPT from a series of 56 patients, 3 of which were referred from other units for treatment of recurrence. Subtotal parathyroidectomy (ST-PTX) was performed in 51 patients and total parathyroidectomy with autograft (TPTX-AT) was performed in the remaining 5 patients. RESULTS: Seven patients underwent reoperation for recurrent SHPT, 1 of them twice (8 reinterventions in 56 patients). In 2 patients only 3 parathyroid glands were removed at the first intervention and recurrence was due to the presence of a fourth gland. In 4 patients, ST-PTX was performed and recurrence was due to a remnant hyperplasic area in 1 and to a fifth gland in 3. Recurrence in the patient with a TPTX-AT was to due to cervical parathyromatosis. All the patients with recurrence had a positive preoperative Tc-MIBI scintigraphy and the computed tomography/magnetic resonance examination was highly useful for anatomical localization of the lesion and for planning the surgical approach.