Transitory increase in creatinine levels after parathyroidectomy: evidence of another action of the parathyroid glands? Alteração transitória da creatinina após paratireoidectomia: evidência de outra ação das glândulas paratireoides?

Objective: Little information is available on glomerular function changes after surgical treatment of primary hyperparathyroidism. The acute effects of some head and neck operations on renal function were studied. Materials and methods: Retrospective analysis of changes in creatinine levels and estimated glomerular filtration rate (eGFR) after surgery. Preoperative values were compared with values available until 72 hours after the operation. Results: In tertiary hyper- parathyroidism, mean preoperative and postoperative eGFR values were 57.7 mL/min and 40.8 mL/min (p < 0.0001), respectively. A similar decrease was observed after parathyroidectomy for primary hyperparathyroidism, from 85.4 mL/min to 64.3 mL/min (p < 0.0001). After major head and neck procedures, there was a slight increase in eGFR (from 94.3 mL/min to 105.4 mL/min, p = 0.002). Conclusions: Parathyroidectomy may be followed by a transient decrease in eGFR that is not often observed in other head and neck operations. Arq Bras Endocrinol Metab. 2011;55(4):249-55