Late Recovery of Parathyroid Function after Total Thyroidectomy in Children and Adults: Is There a Difference?

Published on Jan 1, 2020in Hormone Research in Paediatrics2.174
· DOI :10.1159/000513768
Mechteld C. de Jong1
Estimated H-index: 1
(UCLH: University College London Hospitals NHS Foundation Trust),
Mechteld C de Jong1
Estimated H-index: 1
(UCLH: University College London Hospitals NHS Foundation Trust)
+ 7 AuthorsTom R. Kurzawinski10
Estimated H-index: 10
(UCLH: University College London Hospitals NHS Foundation Trust)
BACKGROUND Parathyroid failure after total thyroidectomy is the commonest adverse event amongst both children and adults. The phenomenon of late recovery of parathyroid function, especially in young patients with persistent hypoparathyroidism, is not well understood. This study investigated differences in rates of parathyroid recovery in children and adults and factors influencing this. METHODS A joint dual-centre database of patients who underwent a total thyroidectomy between 1998 and 2018 was searched for patients with persistent hypoparathyroidism, defined as dependence on oral calcium and vitamin D supplementation at 6 months. Demographic, surgical, pathological, and biochemical data were collected and analysed. Parathyroid Glands Remaining in Situ (PGRIS) score was calculated. RESULTS Out of 960 patients who had total thyroidectomy, 94 (9.8%) had persistent hypoparathyroidism at 6 months, 23 (24.5%) children with a median [range] age 10 [0-17], and 71 (75.5%) adults aged 55 [25-82] years, respectively. Both groups were comparable regarding sex, indication, extent of surgery, and PGRIS score. After a median follow-up of 20 months, the parathyroid recovery rate was identical for children and adults (11 [47.8%] vs. 34 [47.9%]; p = 0.92). Sex, extent, and indication for surgery had no effect on recovery (all p > 0.05). PGRIS score = 4 (HR = 0.48) and serum calcium >2.25 mmol/L (HR = 0.24) at 1 month were associated with a decreased risk of persistent hypoparathyroidism on multivariate analysis (p 2.25 mmol/L at 1 month.
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