Temporal Variation of Biochemical Markers and Adenoma Predictors in Normocalcemic Primary Hyperparathyroidism: A Multicenter Retrospective Analysis
Authors' conclusion
The large scale of our patient cohort reinforces the robustness of our statistical analyses and provides comprehensive insight into the dynamic nature of nPHPT. Our findings demonstrate that, even in normocalcemic patients, higher PTH levels and relatively higher calcium levels within the normal range are important indicators of parathyroid adenoma. Integrating serial biochemical measurements with targeted imaging can facilitate earlier diagnosis, potentially preventing future complications and informing more tailored management strategies.
Study context
- Population
- Normocalcemic patients diagnosed with primary hyperparathyroidism (normocalcemic primary hyperparathyroidism (nPHPT): persistently elevated parathyroid hormone (PTH) with normal serum calcium after excluding secondary causes such as vitamin D deficiency and renal impairment)
- Participants
- 474 patients
- Outcome
- Temporal changes in biochemical markers, predictors of adenoma localisation and diagnostic accuracy
Methodological detailsmulticentre, Biochemical markers measured at three time points; imaging by US, sestamibi scintigraphy and CT
- Multicentre
- Biochemical markers measured at three time points; imaging by US, sestamibi scintigraphy and CT
Main finding
As reported in the abstract
PTH had the highest diagnostic accuracy, AUC
0.91
95% CI 0.84–0.95p < 0.001
Observational data: associations, not effects.
Original publication
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