Sestamibi scan in renal parathyroidectomy: a worthwhile preoperative exam?

Murilo Catafesta das Neves, Augusto Riedel Abrahão, Marcio Abrahão, Marcello Rosano, Lillian Andrade da Rocha, Hanna Karla Andrade Guapyassu Machado, Rodrigo Oliveira Santos
Brazilian Journal of Otorhinolaryngology 2020 November 16

INTRODUCTION: Surgical treatment of hyperparathyroidism related to chronic kidney disease is a real challenge for Brazilian public health care. High cost medications and long waiting lines to perform preoperative exams, especially technetium Tc 99m Sestamibi (MIBI) are some of the reasons. Despite the reality that the aid of localization exams are questionable in this scenario, doctors are too apprehensive in performing surgery without it.

OBJECTIVE: The study aimed at evaluating the efficacy of surgery for renal hyperparathyroidism without preoperative MIBI.

METHODS: A total of 114 patients were surgically treated. Total parathyroidectomy with autotransplantation and subtotal parathyroidectomy were carried out without preoperative MIBI.

RESULTS AND CONCLUSION: Among the 114 patients undergoing surgery, 37 had secondary hyperparathyroidism in dialysis replacement, and 77 patients had post-renal transplant persistent disease. We were successful in 107 cases with only 7 failures (93.8% of success rate). Among these failures, only one parathyroid gland was not found in 4 cases, 2 parathyroid glands were not found in 2 cases and in 1 patient the 4 glands were found but this patient remained hypercalcemic and a postoperative diagnosis of supernumerary parathyroid gland was made. Surgery for treatment of renal hyperparathyroidism proved to be an effective (93.8%) and reproductible procedure, even without MIBI.

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