Solorzano et al. performed a very important retrospective case study on 505 patients with hyperparathyroidism, with a mean follow-up of 41 months. They found that more than 33% of patients had elevated parathyroid hormone (PTH) levels after 6 months, though only 4.8% of them developed recurrent disease.
This finding is extremely important for clinical practice. Our group recently published a study about 10 children (of 790 patients treated in our department 1996-2007) with primary hyperparathyroidism.
Although we monitored PTH levels in only 7 of these 10 children, we did not find any of them to have persistent postoperative elevation of PTH levels.