Assessment of Preoperative serum Calcium, Vitamin D and Parathormone hormone on postoperative hypocalcemia after Total thyroidectomy

Background: One well-known risk and complication after thyroid surgery is hypocalcemia. Post-thyroidectomy hypocalcemia can increase costs by lengthening hospital stays and increasing the need for costly drugs, frequent biochemical testing, and numerous outpatient visits, even though it is typically only temporary. One well-known risk and complication after thyroid surgery is hypocalcemia.Aim and objectives: To assess the effect of preoperative serum Calcium, vitamin D3, and parathormone hormone estimation on post-thyroidectomy hypocalcemia in cases of total thyroidectomy.Patients and methods: Sixty patients who had complete thyroidectomies and were hospitalized to Al-Azhar University hospitals in Cairo between October 2022 and November 2023 were included in this prospective cohort study.Results: Most demographic characteristics, comorbidities, and surgical procedures displayed no significant differences. Concerning observation was the significantly higher incidence of hypocalcemia in group B following surgery. Interestingly, Additionally, group B had noticeably lower 25-hydroxy vitamin D levels, which is in line with their higher risk of hypocalcemia.Conclusion: Low amounts of parathyroid hormone (PTH) before surgery were found to be a strong indicator of hypocalcemia. This finding suggests that measuring PTH before surgery could be valuable in identifying patients at higher risk for developing this complication.