Persistently Elevated Parathyroid Hormone Level after Curative Parathyroidectomy in Patients with Primary Hyperparathyroidism

  • Tasnim Ahsan
  • Saima Ghaus OMI Hospital
  • Khawaja Mohammad Inam Pal
  • Uzma Erum
  • Rukhshanda Jabeen
Keywords: Hyperparathyroidism, Parathyroidectomy, Parathyroid adenoma


Background: Persistent elevation of parathyroid hormone (PPTH) levels following curative parathyroidectomy is a dynamic & multifactorial process. This study was designed to study the frequency of persistent hyperparathyroidism in our patients and to identify the potential causal factors for persistent PTH elevation following parathyroidectomy.

Methodology: The study included prospectively collected data on post-operative patients of primary hyperparathyroidism who underwent parathyroidectomy from 2004-2018. Data was analyzed by SPSS version-21. For descriptive statistics, frequency and percentages were calculated, while mean ±standard deviation were calculated for age, duration of disease, pre-operative and post-operative biochemical parameters, like serum PTH, calcium and vitamin D levels.

Results: A total of 11 (39.3%) patients, were diagnosed as persistent hyperparathyroidism, out of the 30 patients, who underwent parathyroidectomy. All patients were female with a mean age of 45.27+17.2 years and a mean duration of symptoms of 21.3 months. The mean post-operative PTH level, vitamin D and calcium were 154.04±78.64 pg/ml, 22.28±13.79 ng/ml 9.46±0.79 mg/dl, respectively. Fluctuation of PTH hormone in relation to erratic vitamin D intake was reported in 8 patients, and recurrent parathyroid adenoma was reported in three patients, which was subsequently re-operated.

Conclusion: Adequate vitamin D supplementation is essential in the pre and post-operative period to prevent persistent parathyroid stimulation and possible dysregulation. Surveillance for recurrence of hyperparathyroidism should be maintained long term.

How to Cite
Ahsan T, Ghaus S, Inam Pal K, Erum U, Jabeen R. Persistently Elevated Parathyroid Hormone Level after Curative Parathyroidectomy in Patients with Primary Hyperparathyroidism. J Fatima Jinnah Med Univ [Internet]. 15Jun.2023 [cited 29Nov.2023];16(4):180-4. Available from: