Can Surgeons Use Parathyroid Hormone Levels as Predictive Value in Parathyroid Adenomas?

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Aim: Previous studies using different methods for PTH measurement have found a mild to moderate correlation between iPTH and gland weight. The aim of this study was to describe the relationship between parathyroid hormone and parathyroid adenoma volume, in patients with parathyroid adenomas as predictive value. Material and Methods: The multicenteric study was prepared by retrospectively collecting data from 244 patients with parathyroid adenoma who underwent parathyroidectomy and followed up between 2010 and 2020. Results: Two hundred forty and four (female/male = 203/41) patients with a mean age of 51.41 [min-max: 17 to 88] years. The mean iPTH concentrations preoperatively were 584.27 ng/L [min-max: 18.9 to 5011ng/L]. The mean diameter of adenoma of patients was 2,865 mm3 [min-max: 0.119 to 42.3 mm3]. After parathyroidectomy, PTH values were reevaluated and found as 47.2 ng/L [min-max: 0.2 to 903 ng/L]. In the patients with large parathyroid adenoma volume, preoperative PTH hormone values were statistically significantly higher (p=0.001). Conclusion: Our current study found a positive association between baseline iPTH levels and adenoma weight. These results suggest that serum iPTH level may be useful in predicting parathyroid adenoma volume.