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. 2024 Aug 12;16(8):e66665. doi: 10.7759/cureus.66665

Figure 3. Postoperative course of corrected calcium and PTH levels.

Figure 3

The PTH level gradually increased following total thyroidectomy, with calcium supplementation concluding one month after surgery. Despite normal PTH levels, severe hypocalcemia occurred following the COVID-19 reinfection. Calcium administration resolved the symptoms of reactive PTH downregulation. After recovery from COVID-19, both calcium and PTH levels remained within the normal range without supplementation.

PTH: parathyroid hormone