Parathyroidectomy after renal transplantation: A retrospective analysis of long-term outcome

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Abstract

Background. Advanced hyperparathyroidism refractory to active vitamin D continues to be a problem and frequently forces the nephrologist to resort to parathyroidectomy. One particular aspect is persisting advanced hyperparathyroidism after renal transplantation. Published information on this point is fragmentary. Design. Retrospective analysis. Patients. Between 1983 and 1995 a total of 456 patients with renal secondary hyperparathyroidism were subjected to parathyroidectomy (PTX) of whom 103 were transplanted or had at least a history of renal transplantation. The present analysis concerns 37 patients who had a functional renal graft at the time of PTX and were followed for up to 13 years. PTX was performed after an average of 36.7 months after renal transplantation. Outcome. Thirteen patients experienced rejection and became dialysis-dependent. Twenty-four patients had stable function of the renal graft. Seven patients died during follow-up. Hypoparathyroidism post-PTX developed in 4/37 patients, but could be overcome by replantation of cryoconserved parathyroid tissue. Frequency estimate. A total of 2632 renal transplants were performed in the catchment area. As a minimum estimate 3.91% of patients with a functional graft required PTX. Recommendation. Parathyroidectomy should be considered early in cases with advanced secondary renal hyperparathyroidism, since renal transplantation does not necessarily guarantee reversibility of parathyroid overactivity.

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Schmid, T., Müller, P., & Spelsberg, F. (1997). Parathyroidectomy after renal transplantation: A retrospective analysis of long-term outcome. Nephrology Dialysis Transplantation, 12(11), 2393–2396. https://doi.org/10.1093/ndt/12.11.2393

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