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Figures
- Fig. 1
Proportion of patients with classic primary hyperparathyroidism (pHPT) and normohormonal hyperparathyroidism (nhHPT) who had an intraoperative decrease of more than 50% in parathormone level 5, 10 and 20 minutes after parathyroid removal. *p < 0.001. Error bars represent standard deviations.
Tables
- Table 1
Mean preoperative calcium and parathormone levels in patients with normohormonal hyperparathyroidism and primary hyperparathyroidism at the 2 study centres
Group; variable Centre; no. (%) of patients* Calgary
n = 62Miami
n = 271Classic pHPT (n = 295) 47 (75.8) 248 (91.5) Preoperative calcium level, mean ± SD, mmol/L 2.8 ± 0.2 2.8 ± 0.2 Preoperative PTH level, mean ± SD, pg/dL 113 ± 50 151 ± 60 nhHPT (n = 38) 15 (24.2) 23 (8.5) Preoperative calcium level, mean ± SD, mmol/L 2.6 ± 0.1 2.7 ± 0.1 Preoperative PTH level, mean ± SD, pg/dL 52 ± 10 54 ± 9 nhHPT = normohormonal hyperparathyroidism; pHPT = primary hyperparathyroidism;
PTH = parathormone; SD = standard deviation.
↵* Except where noted otherwise.
Characteristic No. (%) of patients* p value Classic pHPT
n = 295nhHPT
n = 38Age, mean ± SD, yr 59 ± 14 58 ± 10 0.5 Female sex 239 (81.0) 28 (73.7) 0.3 Preoperative calcium level, mean ± SD, mmol/L 2.8 ± 0.2 2.7 ± 0.1 < 0.001 Preoperative PTH level, mean ± SD, pg/dL 145 ± 61 53 ± 9 < 0.001 Preoperative eucalcemia 7 (2.4) 2 (5.3) 0.3 nhHPT = normohormonal hyperparathyroidism; pHPT = primary hyperparathyroidism; PTH = parathormone; SD = standard deviation.
↵* Except where noted otherwise.
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